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ATmega32084808 ndash 28-pinData Sheet
megaAVRreg 0-series
Introduction
The ATmega3208320948084809 microcontrollers of the megaAVRreg 0-series are using the AVRreg
processor with hardware multiplier running at up to 20 MHz with a wide range of Flash sizes up to 48KB up to 6 KB of SRAM and 256 bytes of EEPROM in 28- 32- or 48-pin package The series uses thelatest technologies from Microchip with a flexible and low-power architecture including Event System andSleepWalking accurate analog features and advanced peripherals
The devices described here offer Flash sizes from 32 KB to 48 KB in a 28-pin package
Features
bull AVRreg CPUndash Single-cycle IO accessndash Two-level interrupt controllerndash Two-cycle hardware multiplier
bull Memoriesndash Up to 48 KB In-system self-programmable Flash memoryndash 256B EEPROMndash Up to 6 KB SRAMndash WriteErase endurance
bull Flash 10000 cyclesbull EEPROM 100000 cycles
ndash Data retention 20 Years at 85degCbull System
ndash Power-on Reset (POR) circuitndash Brown-out Detection (BOD)ndash Clock options
bull 20 MHz low power internal oscillator with fuse-protected frequency settingbull 32768 kHz Ultra Low Power (ULP) internal oscillatorbull 32768 kHz external crystal oscillatorbull External clock input
ndash Single pin Unified Program Debug Interface (UPDI)ndash Three sleep modes
bull Idle with all peripherals running and mode for immediate wake-up timebull Standby
ndash Configurable operation of selected peripherals
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 1
ndash SleepWalking peripheralsbull Power Down with limited wake-up functionality
bull Peripheralsndash One 16-bit TimerCounter type A with dedicated period register three compare channels (TCA)ndash Three 16-bit TimerCounter type B with input capture (TCB)ndash One 16-bit Real Time Counter (RTC) running from external crystal or internal RC oscillatorndash Three USART with fractional baud rate generator autobaud and start-of-frame detectionndash Masterslave Serial Peripheral Interface (SPI)ndash Dual mode MasterSlave TWI with dual address match
bull Standard mode (Sm 100 kHz)bull Fast mode (Fm 400 kHz)bull Fast mode plus (Fm+ 1 MHz)
ndash Event System for CPU independent and predictable inter-peripheral signalingndash Configurable Custom Logic (CCL) with up to four programmable Lookup Tables (LUT)ndash One Analog Comparator (AC) with scalable reference inputndash One 10-bit 150 ksps Analog to Digital Converter (ADC)ndash Five selectable internal voltage references 055V 11V 15V 25V and 43Vndash CRC code memory scan hardware
bull Optional automatic scan after resetndash Watchdog Timer (WDT) with Window Mode with separate on-chip oscillatorndash External interrupt on all general purpose pins
bull IO and Packagesndash 23 programmable IO linesndash 28-pin SSOP
Temperature Range -40degC to 125degCbull Speed Grades
ndash 0-5 MHz 18V ndash 55Vndash 0-10 MHz 27V ndash 55Vndash 0-20 MHz 45V ndash 55V -40degC to 105degC
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 2
Table of Contents
Introduction1
Features 1
1 Ordering Information5
2 Block Diagram 6
3 Pinout 731 28-pin SSOP 7
4 IO Multiplexing and Considerations841 Multiplexed Signals 8
5 Electrical Characteristics 951 Absolute Maximum Ratings 952 General Operating Ratings 953 Power Considerations 1054 Power Consumption 1155 Peripherals Power Consumption1256 BOD and POR Characteristics1357 External Reset Characteristics1458 Oscillators and Clocks1459 IO Pin Characteristics17510 VREF18511 ADC19512 AC 22513 UPDI Timing 23
6 Typical Characteristics2461 Power Consumption2462 GPIO 3263 VREF Characteristics3964 BOD Characteristics4165 ADC Characteristics4466 AC Characteristics5467 OSC20M Characteristics5668 OSCULP32K Characteristics 58
7 Package Drawings6071 28-Pin SSOP60
8 Conventions6281 Memory Size and Type6282 Frequency and Time62
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 3
9 Data Sheet Revision History6391 Rev A - 02201863
The Microchip Web Site 64
Customer Change Notification Service64
Customer Support 64
Product Identification System65
Microchip Devices Code Protection Feature 65
Legal Notice65
Trademarks 66
Quality Management System Certified by DNV66
Worldwide Sales and Service67
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 4
1 Ordering InformationFind available ordering options online at microchipdirectcom or contact your local sales representative
ATmega32084808 ndash 28-pin Data SheetOrdering Information
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 5
2 Block Diagram
INOUT
DATABUS
Clock generation
BUS Matrix
CPU
USARTn
SPIn
TWIn
CCL
ACn
ADCn
TCAn
TCBn
WOn
RXDTXDXCK
XDIR
MISOMOSISCK
SS
SDA (master)SCL (master)
PORTS
EVSYS
SystemManagement
SLPCTRL
RSTCTRL
CLKCTRL
EVENT
ROUTING
NETWORK
DATABUS
UPDICRC
SRAM
NVMCTRL
Flash
EEPROM
OSC20M
OSC32K
XOSC32K
Detectorsreferences
BODVLM
POR
Bandgap
WDT
RTC
CPUINT
M M
S
MS
S
OCD
UPDI
RST
TOSC2
TOSC1
S
EXTCLK
LUTn-OUT
WO
CLKOUT
PAnPBnPCnPDnPEnPFn
RESET
SDA (slave)SCL (slave)
GPIOR
AINPnAINNn
OUT
AINn
EVOUTx
VREFA
LUTn-INn
ATmega32084808 ndash 28-pin Data SheetBlock Diagram
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 6
3 Pinout
31 28-pin SSOP
1
2
3
4
5
6
7
13
11
12
14
8
9
10
15
20
19
18
17
16
21
26
25
24
23
22
28
27
VDD
GND
PA0 (EXTCLK)
PA1
AVDD
PA7
PA2
PA3
PD6
PD7
PD4
PD5
PD2
PD3
PD0
PD1
UPDI
PF6
PA4
PF1 (TOSC2)
PA5
PA6
PF0 (TOSC1)
GND
PC0
PC1
PC2
PC3
GPIO on VDD power domain
GPIO on AVDD power domain
Clock crystal
Programming debugInput supply
Ground
TWI
Analog functions
Digital functions only
Power Functionality
ATmega32084808 ndash 28-pin Data SheetPinout
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 7
4 IO Multiplexing and Considerations
41 Multiplexed SignalsSSOP28 Pin name (12) Special ADC0 AC0 USARTn SPI0 TWI0 TCA0 TCBn Other CCL-LUTn
22 PA0 EXTCLK 0TxD 0-WO0 0-IN0
23 PA1 0RxD 0-WO1 0-IN1
24 PA2 TWI 0XCK SDA(MS) 0-WO2 0-WO EVOUTA 0-IN2
25 PA3 TWI 0XDIR SCL(MS) 0-WO3 1-WO 0-OUT
26 PA4 0TxD(3) MOSI 0-WO4
27 PA5 0RxD(3) MISO 0-WO5
28 PA6 0XCK(3) SCK 0-OUT(3)
1 PA7 CLKOUT OUT 0XDIR(3) SS EVOUTA(3)
2 PC0 1TxD MOSI(3) 0-WO0(3) 2-WO 1-IN0
3 PC1 1RxD MISO(3) 0-WO1(3) 3-WO(3) 1-IN1
4 PC2 TWI 1XCK SCK(3) SDA(MS)(3) 0-WO2(3) EVOUTC 1-IN2
5 PC3 TWI 1XDIR SS(3) SCL(MS)(3) 0-WO3(3) 1-OUT
6 PD0 AIN0 0-WO0(3) 2-IN0
7 PD1 AIN1 P3 0-WO1(3) 2-IN1
8 PD2 AIN2 P0 0-WO2(3) EVOUTD 2-IN2
9 PD3 AIN3 N0 0-WO3(3) 2-OUT
10 PD4 AIN4 P1 0-WO4(3)
11 PD5 AIN5 N1 0-WO5(3)
12 PD6 AIN6 P2 2-OUT(3)
13 PD7 VREFA AIN7 N2 EVOUTD(3)
14 AVDD
15 GND
16 PF0 TOSC1 2TxD 0-WO0(3) 3-IN0
17 PF1 TOSC2 2RxD 0-WO1(3) 3-IN1
18 PF6 RESET 2XCK(3) 3-OUT(3)
19 UPDI
20 VDD
21 GND
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 8
5 Electrical Characteristics
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-3 Operating Voltage and Frequency
Symbol Description Condition Min Max(1) Unit
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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where PD is the total power dissipation
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Mode Description Condition Typ Max Unit
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 07 - mA
VDD=3V 04 - mA
VDD=2V 025 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 56 - microA
VDD=3V 28 - microA
VDD=2V 18 - microA
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 15
Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 16
59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 17
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 20
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
ndash SleepWalking peripheralsbull Power Down with limited wake-up functionality
bull Peripheralsndash One 16-bit TimerCounter type A with dedicated period register three compare channels (TCA)ndash Three 16-bit TimerCounter type B with input capture (TCB)ndash One 16-bit Real Time Counter (RTC) running from external crystal or internal RC oscillatorndash Three USART with fractional baud rate generator autobaud and start-of-frame detectionndash Masterslave Serial Peripheral Interface (SPI)ndash Dual mode MasterSlave TWI with dual address match
bull Standard mode (Sm 100 kHz)bull Fast mode (Fm 400 kHz)bull Fast mode plus (Fm+ 1 MHz)
ndash Event System for CPU independent and predictable inter-peripheral signalingndash Configurable Custom Logic (CCL) with up to four programmable Lookup Tables (LUT)ndash One Analog Comparator (AC) with scalable reference inputndash One 10-bit 150 ksps Analog to Digital Converter (ADC)ndash Five selectable internal voltage references 055V 11V 15V 25V and 43Vndash CRC code memory scan hardware
bull Optional automatic scan after resetndash Watchdog Timer (WDT) with Window Mode with separate on-chip oscillatorndash External interrupt on all general purpose pins
bull IO and Packagesndash 23 programmable IO linesndash 28-pin SSOP
Temperature Range -40degC to 125degCbull Speed Grades
ndash 0-5 MHz 18V ndash 55Vndash 0-10 MHz 27V ndash 55Vndash 0-20 MHz 45V ndash 55V -40degC to 105degC
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 2
Table of Contents
Introduction1
Features 1
1 Ordering Information5
2 Block Diagram 6
3 Pinout 731 28-pin SSOP 7
4 IO Multiplexing and Considerations841 Multiplexed Signals 8
5 Electrical Characteristics 951 Absolute Maximum Ratings 952 General Operating Ratings 953 Power Considerations 1054 Power Consumption 1155 Peripherals Power Consumption1256 BOD and POR Characteristics1357 External Reset Characteristics1458 Oscillators and Clocks1459 IO Pin Characteristics17510 VREF18511 ADC19512 AC 22513 UPDI Timing 23
6 Typical Characteristics2461 Power Consumption2462 GPIO 3263 VREF Characteristics3964 BOD Characteristics4165 ADC Characteristics4466 AC Characteristics5467 OSC20M Characteristics5668 OSCULP32K Characteristics 58
7 Package Drawings6071 28-Pin SSOP60
8 Conventions6281 Memory Size and Type6282 Frequency and Time62
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 3
9 Data Sheet Revision History6391 Rev A - 02201863
The Microchip Web Site 64
Customer Change Notification Service64
Customer Support 64
Product Identification System65
Microchip Devices Code Protection Feature 65
Legal Notice65
Trademarks 66
Quality Management System Certified by DNV66
Worldwide Sales and Service67
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 4
1 Ordering InformationFind available ordering options online at microchipdirectcom or contact your local sales representative
ATmega32084808 ndash 28-pin Data SheetOrdering Information
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 5
2 Block Diagram
INOUT
DATABUS
Clock generation
BUS Matrix
CPU
USARTn
SPIn
TWIn
CCL
ACn
ADCn
TCAn
TCBn
WOn
RXDTXDXCK
XDIR
MISOMOSISCK
SS
SDA (master)SCL (master)
PORTS
EVSYS
SystemManagement
SLPCTRL
RSTCTRL
CLKCTRL
EVENT
ROUTING
NETWORK
DATABUS
UPDICRC
SRAM
NVMCTRL
Flash
EEPROM
OSC20M
OSC32K
XOSC32K
Detectorsreferences
BODVLM
POR
Bandgap
WDT
RTC
CPUINT
M M
S
MS
S
OCD
UPDI
RST
TOSC2
TOSC1
S
EXTCLK
LUTn-OUT
WO
CLKOUT
PAnPBnPCnPDnPEnPFn
RESET
SDA (slave)SCL (slave)
GPIOR
AINPnAINNn
OUT
AINn
EVOUTx
VREFA
LUTn-INn
ATmega32084808 ndash 28-pin Data SheetBlock Diagram
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 6
3 Pinout
31 28-pin SSOP
1
2
3
4
5
6
7
13
11
12
14
8
9
10
15
20
19
18
17
16
21
26
25
24
23
22
28
27
VDD
GND
PA0 (EXTCLK)
PA1
AVDD
PA7
PA2
PA3
PD6
PD7
PD4
PD5
PD2
PD3
PD0
PD1
UPDI
PF6
PA4
PF1 (TOSC2)
PA5
PA6
PF0 (TOSC1)
GND
PC0
PC1
PC2
PC3
GPIO on VDD power domain
GPIO on AVDD power domain
Clock crystal
Programming debugInput supply
Ground
TWI
Analog functions
Digital functions only
Power Functionality
ATmega32084808 ndash 28-pin Data SheetPinout
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 7
4 IO Multiplexing and Considerations
41 Multiplexed SignalsSSOP28 Pin name (12) Special ADC0 AC0 USARTn SPI0 TWI0 TCA0 TCBn Other CCL-LUTn
22 PA0 EXTCLK 0TxD 0-WO0 0-IN0
23 PA1 0RxD 0-WO1 0-IN1
24 PA2 TWI 0XCK SDA(MS) 0-WO2 0-WO EVOUTA 0-IN2
25 PA3 TWI 0XDIR SCL(MS) 0-WO3 1-WO 0-OUT
26 PA4 0TxD(3) MOSI 0-WO4
27 PA5 0RxD(3) MISO 0-WO5
28 PA6 0XCK(3) SCK 0-OUT(3)
1 PA7 CLKOUT OUT 0XDIR(3) SS EVOUTA(3)
2 PC0 1TxD MOSI(3) 0-WO0(3) 2-WO 1-IN0
3 PC1 1RxD MISO(3) 0-WO1(3) 3-WO(3) 1-IN1
4 PC2 TWI 1XCK SCK(3) SDA(MS)(3) 0-WO2(3) EVOUTC 1-IN2
5 PC3 TWI 1XDIR SS(3) SCL(MS)(3) 0-WO3(3) 1-OUT
6 PD0 AIN0 0-WO0(3) 2-IN0
7 PD1 AIN1 P3 0-WO1(3) 2-IN1
8 PD2 AIN2 P0 0-WO2(3) EVOUTD 2-IN2
9 PD3 AIN3 N0 0-WO3(3) 2-OUT
10 PD4 AIN4 P1 0-WO4(3)
11 PD5 AIN5 N1 0-WO5(3)
12 PD6 AIN6 P2 2-OUT(3)
13 PD7 VREFA AIN7 N2 EVOUTD(3)
14 AVDD
15 GND
16 PF0 TOSC1 2TxD 0-WO0(3) 3-IN0
17 PF1 TOSC2 2RxD 0-WO1(3) 3-IN1
18 PF6 RESET 2XCK(3) 3-OUT(3)
19 UPDI
20 VDD
21 GND
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 8
5 Electrical Characteristics
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 9
Table 5-3 Operating Voltage and Frequency
Symbol Description Condition Min Max(1) Unit
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 10
where PD is the total power dissipation
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Mode Description Condition Typ Max Unit
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 07 - mA
VDD=3V 04 - mA
VDD=2V 025 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 56 - microA
VDD=3V 28 - microA
VDD=2V 18 - microA
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
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Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
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Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
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Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Table of Contents
Introduction1
Features 1
1 Ordering Information5
2 Block Diagram 6
3 Pinout 731 28-pin SSOP 7
4 IO Multiplexing and Considerations841 Multiplexed Signals 8
5 Electrical Characteristics 951 Absolute Maximum Ratings 952 General Operating Ratings 953 Power Considerations 1054 Power Consumption 1155 Peripherals Power Consumption1256 BOD and POR Characteristics1357 External Reset Characteristics1458 Oscillators and Clocks1459 IO Pin Characteristics17510 VREF18511 ADC19512 AC 22513 UPDI Timing 23
6 Typical Characteristics2461 Power Consumption2462 GPIO 3263 VREF Characteristics3964 BOD Characteristics4165 ADC Characteristics4466 AC Characteristics5467 OSC20M Characteristics5668 OSCULP32K Characteristics 58
7 Package Drawings6071 28-Pin SSOP60
8 Conventions6281 Memory Size and Type6282 Frequency and Time62
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 3
9 Data Sheet Revision History6391 Rev A - 02201863
The Microchip Web Site 64
Customer Change Notification Service64
Customer Support 64
Product Identification System65
Microchip Devices Code Protection Feature 65
Legal Notice65
Trademarks 66
Quality Management System Certified by DNV66
Worldwide Sales and Service67
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 4
1 Ordering InformationFind available ordering options online at microchipdirectcom or contact your local sales representative
ATmega32084808 ndash 28-pin Data SheetOrdering Information
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 5
2 Block Diagram
INOUT
DATABUS
Clock generation
BUS Matrix
CPU
USARTn
SPIn
TWIn
CCL
ACn
ADCn
TCAn
TCBn
WOn
RXDTXDXCK
XDIR
MISOMOSISCK
SS
SDA (master)SCL (master)
PORTS
EVSYS
SystemManagement
SLPCTRL
RSTCTRL
CLKCTRL
EVENT
ROUTING
NETWORK
DATABUS
UPDICRC
SRAM
NVMCTRL
Flash
EEPROM
OSC20M
OSC32K
XOSC32K
Detectorsreferences
BODVLM
POR
Bandgap
WDT
RTC
CPUINT
M M
S
MS
S
OCD
UPDI
RST
TOSC2
TOSC1
S
EXTCLK
LUTn-OUT
WO
CLKOUT
PAnPBnPCnPDnPEnPFn
RESET
SDA (slave)SCL (slave)
GPIOR
AINPnAINNn
OUT
AINn
EVOUTx
VREFA
LUTn-INn
ATmega32084808 ndash 28-pin Data SheetBlock Diagram
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 6
3 Pinout
31 28-pin SSOP
1
2
3
4
5
6
7
13
11
12
14
8
9
10
15
20
19
18
17
16
21
26
25
24
23
22
28
27
VDD
GND
PA0 (EXTCLK)
PA1
AVDD
PA7
PA2
PA3
PD6
PD7
PD4
PD5
PD2
PD3
PD0
PD1
UPDI
PF6
PA4
PF1 (TOSC2)
PA5
PA6
PF0 (TOSC1)
GND
PC0
PC1
PC2
PC3
GPIO on VDD power domain
GPIO on AVDD power domain
Clock crystal
Programming debugInput supply
Ground
TWI
Analog functions
Digital functions only
Power Functionality
ATmega32084808 ndash 28-pin Data SheetPinout
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 7
4 IO Multiplexing and Considerations
41 Multiplexed SignalsSSOP28 Pin name (12) Special ADC0 AC0 USARTn SPI0 TWI0 TCA0 TCBn Other CCL-LUTn
22 PA0 EXTCLK 0TxD 0-WO0 0-IN0
23 PA1 0RxD 0-WO1 0-IN1
24 PA2 TWI 0XCK SDA(MS) 0-WO2 0-WO EVOUTA 0-IN2
25 PA3 TWI 0XDIR SCL(MS) 0-WO3 1-WO 0-OUT
26 PA4 0TxD(3) MOSI 0-WO4
27 PA5 0RxD(3) MISO 0-WO5
28 PA6 0XCK(3) SCK 0-OUT(3)
1 PA7 CLKOUT OUT 0XDIR(3) SS EVOUTA(3)
2 PC0 1TxD MOSI(3) 0-WO0(3) 2-WO 1-IN0
3 PC1 1RxD MISO(3) 0-WO1(3) 3-WO(3) 1-IN1
4 PC2 TWI 1XCK SCK(3) SDA(MS)(3) 0-WO2(3) EVOUTC 1-IN2
5 PC3 TWI 1XDIR SS(3) SCL(MS)(3) 0-WO3(3) 1-OUT
6 PD0 AIN0 0-WO0(3) 2-IN0
7 PD1 AIN1 P3 0-WO1(3) 2-IN1
8 PD2 AIN2 P0 0-WO2(3) EVOUTD 2-IN2
9 PD3 AIN3 N0 0-WO3(3) 2-OUT
10 PD4 AIN4 P1 0-WO4(3)
11 PD5 AIN5 N1 0-WO5(3)
12 PD6 AIN6 P2 2-OUT(3)
13 PD7 VREFA AIN7 N2 EVOUTD(3)
14 AVDD
15 GND
16 PF0 TOSC1 2TxD 0-WO0(3) 3-IN0
17 PF1 TOSC2 2RxD 0-WO1(3) 3-IN1
18 PF6 RESET 2XCK(3) 3-OUT(3)
19 UPDI
20 VDD
21 GND
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 8
5 Electrical Characteristics
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 9
Table 5-3 Operating Voltage and Frequency
Symbol Description Condition Min Max(1) Unit
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 10
where PD is the total power dissipation
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 11
Mode Description Condition Typ Max Unit
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 07 - mA
VDD=3V 04 - mA
VDD=2V 025 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 56 - microA
VDD=3V 28 - microA
VDD=2V 18 - microA
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 12
Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 13
Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 14
Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 15
Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 16
59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 17
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 19
Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 20
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
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135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
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21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
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41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
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5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
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05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
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45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
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172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
9 Data Sheet Revision History6391 Rev A - 02201863
The Microchip Web Site 64
Customer Change Notification Service64
Customer Support 64
Product Identification System65
Microchip Devices Code Protection Feature 65
Legal Notice65
Trademarks 66
Quality Management System Certified by DNV66
Worldwide Sales and Service67
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 4
1 Ordering InformationFind available ordering options online at microchipdirectcom or contact your local sales representative
ATmega32084808 ndash 28-pin Data SheetOrdering Information
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 5
2 Block Diagram
INOUT
DATABUS
Clock generation
BUS Matrix
CPU
USARTn
SPIn
TWIn
CCL
ACn
ADCn
TCAn
TCBn
WOn
RXDTXDXCK
XDIR
MISOMOSISCK
SS
SDA (master)SCL (master)
PORTS
EVSYS
SystemManagement
SLPCTRL
RSTCTRL
CLKCTRL
EVENT
ROUTING
NETWORK
DATABUS
UPDICRC
SRAM
NVMCTRL
Flash
EEPROM
OSC20M
OSC32K
XOSC32K
Detectorsreferences
BODVLM
POR
Bandgap
WDT
RTC
CPUINT
M M
S
MS
S
OCD
UPDI
RST
TOSC2
TOSC1
S
EXTCLK
LUTn-OUT
WO
CLKOUT
PAnPBnPCnPDnPEnPFn
RESET
SDA (slave)SCL (slave)
GPIOR
AINPnAINNn
OUT
AINn
EVOUTx
VREFA
LUTn-INn
ATmega32084808 ndash 28-pin Data SheetBlock Diagram
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 6
3 Pinout
31 28-pin SSOP
1
2
3
4
5
6
7
13
11
12
14
8
9
10
15
20
19
18
17
16
21
26
25
24
23
22
28
27
VDD
GND
PA0 (EXTCLK)
PA1
AVDD
PA7
PA2
PA3
PD6
PD7
PD4
PD5
PD2
PD3
PD0
PD1
UPDI
PF6
PA4
PF1 (TOSC2)
PA5
PA6
PF0 (TOSC1)
GND
PC0
PC1
PC2
PC3
GPIO on VDD power domain
GPIO on AVDD power domain
Clock crystal
Programming debugInput supply
Ground
TWI
Analog functions
Digital functions only
Power Functionality
ATmega32084808 ndash 28-pin Data SheetPinout
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 7
4 IO Multiplexing and Considerations
41 Multiplexed SignalsSSOP28 Pin name (12) Special ADC0 AC0 USARTn SPI0 TWI0 TCA0 TCBn Other CCL-LUTn
22 PA0 EXTCLK 0TxD 0-WO0 0-IN0
23 PA1 0RxD 0-WO1 0-IN1
24 PA2 TWI 0XCK SDA(MS) 0-WO2 0-WO EVOUTA 0-IN2
25 PA3 TWI 0XDIR SCL(MS) 0-WO3 1-WO 0-OUT
26 PA4 0TxD(3) MOSI 0-WO4
27 PA5 0RxD(3) MISO 0-WO5
28 PA6 0XCK(3) SCK 0-OUT(3)
1 PA7 CLKOUT OUT 0XDIR(3) SS EVOUTA(3)
2 PC0 1TxD MOSI(3) 0-WO0(3) 2-WO 1-IN0
3 PC1 1RxD MISO(3) 0-WO1(3) 3-WO(3) 1-IN1
4 PC2 TWI 1XCK SCK(3) SDA(MS)(3) 0-WO2(3) EVOUTC 1-IN2
5 PC3 TWI 1XDIR SS(3) SCL(MS)(3) 0-WO3(3) 1-OUT
6 PD0 AIN0 0-WO0(3) 2-IN0
7 PD1 AIN1 P3 0-WO1(3) 2-IN1
8 PD2 AIN2 P0 0-WO2(3) EVOUTD 2-IN2
9 PD3 AIN3 N0 0-WO3(3) 2-OUT
10 PD4 AIN4 P1 0-WO4(3)
11 PD5 AIN5 N1 0-WO5(3)
12 PD6 AIN6 P2 2-OUT(3)
13 PD7 VREFA AIN7 N2 EVOUTD(3)
14 AVDD
15 GND
16 PF0 TOSC1 2TxD 0-WO0(3) 3-IN0
17 PF1 TOSC2 2RxD 0-WO1(3) 3-IN1
18 PF6 RESET 2XCK(3) 3-OUT(3)
19 UPDI
20 VDD
21 GND
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 8
5 Electrical Characteristics
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 9
Table 5-3 Operating Voltage and Frequency
Symbol Description Condition Min Max(1) Unit
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 10
where PD is the total power dissipation
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Mode Description Condition Typ Max Unit
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 07 - mA
VDD=3V 04 - mA
VDD=2V 025 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 56 - microA
VDD=3V 28 - microA
VDD=2V 18 - microA
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
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Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
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Worldwide Sales and Service
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1 Ordering InformationFind available ordering options online at microchipdirectcom or contact your local sales representative
ATmega32084808 ndash 28-pin Data SheetOrdering Information
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 5
2 Block Diagram
INOUT
DATABUS
Clock generation
BUS Matrix
CPU
USARTn
SPIn
TWIn
CCL
ACn
ADCn
TCAn
TCBn
WOn
RXDTXDXCK
XDIR
MISOMOSISCK
SS
SDA (master)SCL (master)
PORTS
EVSYS
SystemManagement
SLPCTRL
RSTCTRL
CLKCTRL
EVENT
ROUTING
NETWORK
DATABUS
UPDICRC
SRAM
NVMCTRL
Flash
EEPROM
OSC20M
OSC32K
XOSC32K
Detectorsreferences
BODVLM
POR
Bandgap
WDT
RTC
CPUINT
M M
S
MS
S
OCD
UPDI
RST
TOSC2
TOSC1
S
EXTCLK
LUTn-OUT
WO
CLKOUT
PAnPBnPCnPDnPEnPFn
RESET
SDA (slave)SCL (slave)
GPIOR
AINPnAINNn
OUT
AINn
EVOUTx
VREFA
LUTn-INn
ATmega32084808 ndash 28-pin Data SheetBlock Diagram
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3 Pinout
31 28-pin SSOP
1
2
3
4
5
6
7
13
11
12
14
8
9
10
15
20
19
18
17
16
21
26
25
24
23
22
28
27
VDD
GND
PA0 (EXTCLK)
PA1
AVDD
PA7
PA2
PA3
PD6
PD7
PD4
PD5
PD2
PD3
PD0
PD1
UPDI
PF6
PA4
PF1 (TOSC2)
PA5
PA6
PF0 (TOSC1)
GND
PC0
PC1
PC2
PC3
GPIO on VDD power domain
GPIO on AVDD power domain
Clock crystal
Programming debugInput supply
Ground
TWI
Analog functions
Digital functions only
Power Functionality
ATmega32084808 ndash 28-pin Data SheetPinout
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4 IO Multiplexing and Considerations
41 Multiplexed SignalsSSOP28 Pin name (12) Special ADC0 AC0 USARTn SPI0 TWI0 TCA0 TCBn Other CCL-LUTn
22 PA0 EXTCLK 0TxD 0-WO0 0-IN0
23 PA1 0RxD 0-WO1 0-IN1
24 PA2 TWI 0XCK SDA(MS) 0-WO2 0-WO EVOUTA 0-IN2
25 PA3 TWI 0XDIR SCL(MS) 0-WO3 1-WO 0-OUT
26 PA4 0TxD(3) MOSI 0-WO4
27 PA5 0RxD(3) MISO 0-WO5
28 PA6 0XCK(3) SCK 0-OUT(3)
1 PA7 CLKOUT OUT 0XDIR(3) SS EVOUTA(3)
2 PC0 1TxD MOSI(3) 0-WO0(3) 2-WO 1-IN0
3 PC1 1RxD MISO(3) 0-WO1(3) 3-WO(3) 1-IN1
4 PC2 TWI 1XCK SCK(3) SDA(MS)(3) 0-WO2(3) EVOUTC 1-IN2
5 PC3 TWI 1XDIR SS(3) SCL(MS)(3) 0-WO3(3) 1-OUT
6 PD0 AIN0 0-WO0(3) 2-IN0
7 PD1 AIN1 P3 0-WO1(3) 2-IN1
8 PD2 AIN2 P0 0-WO2(3) EVOUTD 2-IN2
9 PD3 AIN3 N0 0-WO3(3) 2-OUT
10 PD4 AIN4 P1 0-WO4(3)
11 PD5 AIN5 N1 0-WO5(3)
12 PD6 AIN6 P2 2-OUT(3)
13 PD7 VREFA AIN7 N2 EVOUTD(3)
14 AVDD
15 GND
16 PF0 TOSC1 2TxD 0-WO0(3) 3-IN0
17 PF1 TOSC2 2RxD 0-WO1(3) 3-IN1
18 PF6 RESET 2XCK(3) 3-OUT(3)
19 UPDI
20 VDD
21 GND
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
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5 Electrical Characteristics
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
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Table 5-3 Operating Voltage and Frequency
Symbol Description Condition Min Max(1) Unit
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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where PD is the total power dissipation
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Mode Description Condition Typ Max Unit
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 07 - mA
VDD=3V 04 - mA
VDD=2V 025 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 56 - microA
VDD=3V 28 - microA
VDD=2V 18 - microA
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
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Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 20
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
2 Block Diagram
INOUT
DATABUS
Clock generation
BUS Matrix
CPU
USARTn
SPIn
TWIn
CCL
ACn
ADCn
TCAn
TCBn
WOn
RXDTXDXCK
XDIR
MISOMOSISCK
SS
SDA (master)SCL (master)
PORTS
EVSYS
SystemManagement
SLPCTRL
RSTCTRL
CLKCTRL
EVENT
ROUTING
NETWORK
DATABUS
UPDICRC
SRAM
NVMCTRL
Flash
EEPROM
OSC20M
OSC32K
XOSC32K
Detectorsreferences
BODVLM
POR
Bandgap
WDT
RTC
CPUINT
M M
S
MS
S
OCD
UPDI
RST
TOSC2
TOSC1
S
EXTCLK
LUTn-OUT
WO
CLKOUT
PAnPBnPCnPDnPEnPFn
RESET
SDA (slave)SCL (slave)
GPIOR
AINPnAINNn
OUT
AINn
EVOUTx
VREFA
LUTn-INn
ATmega32084808 ndash 28-pin Data SheetBlock Diagram
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 6
3 Pinout
31 28-pin SSOP
1
2
3
4
5
6
7
13
11
12
14
8
9
10
15
20
19
18
17
16
21
26
25
24
23
22
28
27
VDD
GND
PA0 (EXTCLK)
PA1
AVDD
PA7
PA2
PA3
PD6
PD7
PD4
PD5
PD2
PD3
PD0
PD1
UPDI
PF6
PA4
PF1 (TOSC2)
PA5
PA6
PF0 (TOSC1)
GND
PC0
PC1
PC2
PC3
GPIO on VDD power domain
GPIO on AVDD power domain
Clock crystal
Programming debugInput supply
Ground
TWI
Analog functions
Digital functions only
Power Functionality
ATmega32084808 ndash 28-pin Data SheetPinout
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 7
4 IO Multiplexing and Considerations
41 Multiplexed SignalsSSOP28 Pin name (12) Special ADC0 AC0 USARTn SPI0 TWI0 TCA0 TCBn Other CCL-LUTn
22 PA0 EXTCLK 0TxD 0-WO0 0-IN0
23 PA1 0RxD 0-WO1 0-IN1
24 PA2 TWI 0XCK SDA(MS) 0-WO2 0-WO EVOUTA 0-IN2
25 PA3 TWI 0XDIR SCL(MS) 0-WO3 1-WO 0-OUT
26 PA4 0TxD(3) MOSI 0-WO4
27 PA5 0RxD(3) MISO 0-WO5
28 PA6 0XCK(3) SCK 0-OUT(3)
1 PA7 CLKOUT OUT 0XDIR(3) SS EVOUTA(3)
2 PC0 1TxD MOSI(3) 0-WO0(3) 2-WO 1-IN0
3 PC1 1RxD MISO(3) 0-WO1(3) 3-WO(3) 1-IN1
4 PC2 TWI 1XCK SCK(3) SDA(MS)(3) 0-WO2(3) EVOUTC 1-IN2
5 PC3 TWI 1XDIR SS(3) SCL(MS)(3) 0-WO3(3) 1-OUT
6 PD0 AIN0 0-WO0(3) 2-IN0
7 PD1 AIN1 P3 0-WO1(3) 2-IN1
8 PD2 AIN2 P0 0-WO2(3) EVOUTD 2-IN2
9 PD3 AIN3 N0 0-WO3(3) 2-OUT
10 PD4 AIN4 P1 0-WO4(3)
11 PD5 AIN5 N1 0-WO5(3)
12 PD6 AIN6 P2 2-OUT(3)
13 PD7 VREFA AIN7 N2 EVOUTD(3)
14 AVDD
15 GND
16 PF0 TOSC1 2TxD 0-WO0(3) 3-IN0
17 PF1 TOSC2 2RxD 0-WO1(3) 3-IN1
18 PF6 RESET 2XCK(3) 3-OUT(3)
19 UPDI
20 VDD
21 GND
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 8
5 Electrical Characteristics
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 9
Table 5-3 Operating Voltage and Frequency
Symbol Description Condition Min Max(1) Unit
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 10
where PD is the total power dissipation
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 11
Mode Description Condition Typ Max Unit
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 07 - mA
VDD=3V 04 - mA
VDD=2V 025 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 56 - microA
VDD=3V 28 - microA
VDD=2V 18 - microA
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
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Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
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Worldwide Sales and Service
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3 Pinout
31 28-pin SSOP
1
2
3
4
5
6
7
13
11
12
14
8
9
10
15
20
19
18
17
16
21
26
25
24
23
22
28
27
VDD
GND
PA0 (EXTCLK)
PA1
AVDD
PA7
PA2
PA3
PD6
PD7
PD4
PD5
PD2
PD3
PD0
PD1
UPDI
PF6
PA4
PF1 (TOSC2)
PA5
PA6
PF0 (TOSC1)
GND
PC0
PC1
PC2
PC3
GPIO on VDD power domain
GPIO on AVDD power domain
Clock crystal
Programming debugInput supply
Ground
TWI
Analog functions
Digital functions only
Power Functionality
ATmega32084808 ndash 28-pin Data SheetPinout
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 7
4 IO Multiplexing and Considerations
41 Multiplexed SignalsSSOP28 Pin name (12) Special ADC0 AC0 USARTn SPI0 TWI0 TCA0 TCBn Other CCL-LUTn
22 PA0 EXTCLK 0TxD 0-WO0 0-IN0
23 PA1 0RxD 0-WO1 0-IN1
24 PA2 TWI 0XCK SDA(MS) 0-WO2 0-WO EVOUTA 0-IN2
25 PA3 TWI 0XDIR SCL(MS) 0-WO3 1-WO 0-OUT
26 PA4 0TxD(3) MOSI 0-WO4
27 PA5 0RxD(3) MISO 0-WO5
28 PA6 0XCK(3) SCK 0-OUT(3)
1 PA7 CLKOUT OUT 0XDIR(3) SS EVOUTA(3)
2 PC0 1TxD MOSI(3) 0-WO0(3) 2-WO 1-IN0
3 PC1 1RxD MISO(3) 0-WO1(3) 3-WO(3) 1-IN1
4 PC2 TWI 1XCK SCK(3) SDA(MS)(3) 0-WO2(3) EVOUTC 1-IN2
5 PC3 TWI 1XDIR SS(3) SCL(MS)(3) 0-WO3(3) 1-OUT
6 PD0 AIN0 0-WO0(3) 2-IN0
7 PD1 AIN1 P3 0-WO1(3) 2-IN1
8 PD2 AIN2 P0 0-WO2(3) EVOUTD 2-IN2
9 PD3 AIN3 N0 0-WO3(3) 2-OUT
10 PD4 AIN4 P1 0-WO4(3)
11 PD5 AIN5 N1 0-WO5(3)
12 PD6 AIN6 P2 2-OUT(3)
13 PD7 VREFA AIN7 N2 EVOUTD(3)
14 AVDD
15 GND
16 PF0 TOSC1 2TxD 0-WO0(3) 3-IN0
17 PF1 TOSC2 2RxD 0-WO1(3) 3-IN1
18 PF6 RESET 2XCK(3) 3-OUT(3)
19 UPDI
20 VDD
21 GND
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
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5 Electrical Characteristics
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-3 Operating Voltage and Frequency
Symbol Description Condition Min Max(1) Unit
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
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where PD is the total power dissipation
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Mode Description Condition Typ Max Unit
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 07 - mA
VDD=3V 04 - mA
VDD=2V 025 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 56 - microA
VDD=3V 28 - microA
VDD=2V 18 - microA
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 15
Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 16
59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 17
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 18
Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 20
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
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80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
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08
10
12
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20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
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06
08
10
12
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18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
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Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
4 IO Multiplexing and Considerations
41 Multiplexed SignalsSSOP28 Pin name (12) Special ADC0 AC0 USARTn SPI0 TWI0 TCA0 TCBn Other CCL-LUTn
22 PA0 EXTCLK 0TxD 0-WO0 0-IN0
23 PA1 0RxD 0-WO1 0-IN1
24 PA2 TWI 0XCK SDA(MS) 0-WO2 0-WO EVOUTA 0-IN2
25 PA3 TWI 0XDIR SCL(MS) 0-WO3 1-WO 0-OUT
26 PA4 0TxD(3) MOSI 0-WO4
27 PA5 0RxD(3) MISO 0-WO5
28 PA6 0XCK(3) SCK 0-OUT(3)
1 PA7 CLKOUT OUT 0XDIR(3) SS EVOUTA(3)
2 PC0 1TxD MOSI(3) 0-WO0(3) 2-WO 1-IN0
3 PC1 1RxD MISO(3) 0-WO1(3) 3-WO(3) 1-IN1
4 PC2 TWI 1XCK SCK(3) SDA(MS)(3) 0-WO2(3) EVOUTC 1-IN2
5 PC3 TWI 1XDIR SS(3) SCL(MS)(3) 0-WO3(3) 1-OUT
6 PD0 AIN0 0-WO0(3) 2-IN0
7 PD1 AIN1 P3 0-WO1(3) 2-IN1
8 PD2 AIN2 P0 0-WO2(3) EVOUTD 2-IN2
9 PD3 AIN3 N0 0-WO3(3) 2-OUT
10 PD4 AIN4 P1 0-WO4(3)
11 PD5 AIN5 N1 0-WO5(3)
12 PD6 AIN6 P2 2-OUT(3)
13 PD7 VREFA AIN7 N2 EVOUTD(3)
14 AVDD
15 GND
16 PF0 TOSC1 2TxD 0-WO0(3) 3-IN0
17 PF1 TOSC2 2RxD 0-WO1(3) 3-IN1
18 PF6 RESET 2XCK(3) 3-OUT(3)
19 UPDI
20 VDD
21 GND
Note 1 Pin names are of type Pxn with x being the PORT instance (ABC ) and n the pin number
Notation for signals is PORTx_PINn All pins can be used as event input2 All pins can be used for external interrupt where pins Px2 and Px6 of each port have full
asynchronous detection3 Alternate pin positions For selecting the alternate positions refer to the PORTMUX documentation
ATmega32084808 ndash 28-pin Data SheetIO Multiplexing and Considerations
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 8
5 Electrical Characteristics
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 9
Table 5-3 Operating Voltage and Frequency
Symbol Description Condition Min Max(1) Unit
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 10
where PD is the total power dissipation
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 11
Mode Description Condition Typ Max Unit
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 07 - mA
VDD=3V 04 - mA
VDD=2V 025 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 56 - microA
VDD=3V 28 - microA
VDD=2V 18 - microA
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 12
Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 13
Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 14
Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
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Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
5 Electrical Characteristics
51 Absolute Maximum RatingsStresses beyond those listed in this section may cause permanent damage to the device This is a stressrating only and functional operation of the device at these or other conditions beyond those indicated inthe operational sections of this specification is not implied Exposure to absolute maximum ratingconditions for extended periods may affect device reliability
Table 5-1 Absolute Maximum Ratings
Symbol Description Conditions Min Max UnitVDD Power Supply Voltage -05 6 VIVDD Current into a VDD pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAIGND Current out of a GND pin TA=[-40 85]degC - 200 mA
TA=[85 125]degC - 100 mAVPIN Pin voltage with respect to GND -05 VDD+05 VIPIN IO pin sinksource current -40 40 mAIc1
(1) IO pin injection current except for the RESET pinVpinltGND-06V or 55VltVpinle61V49VltVDDle55V
-1 1 mA
Ic2(1) IO pin injection current except for the RESET pin
VpinltGND-06V or Vpinle55VVDDle49V
-15 15 mA
Tstorage Storage temperature -65 150 degC
Note 1 ndash If VPIN is lower than GND-06V then a current limiting resistor is required The negative DC
injection current limiting resistor is calculated as R = (GND-06V ndash Vpin)ICnndash If VPIN is greater than VDD+06V then a current limiting resistor is required The positive DC
injection current limiting resistor is calculated as R = (Vpin-(VDD+06))ICn
52 General Operating RatingsThe device must operate within the ratings listed in this section in order for all other electricalcharacteristics and typical characteristics of the device to be validTable 5-2 General Operating Conditions
Symbol Description Condition Min Max Unit
VDD Operating Supply Voltage 18(1) 55 V
TA Operating temperature range Standard temperature range -40 125 degC
Note 1 Operation is guaranteed down to 18V or VBOD with BODLEVEL=18V whichever is lower
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 9
Table 5-3 Operating Voltage and Frequency
Symbol Description Condition Min Max(1) Unit
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
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where PD is the total power dissipation
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
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Mode Description Condition Typ Max Unit
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 07 - mA
VDD=3V 04 - mA
VDD=2V 025 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 56 - microA
VDD=3V 28 - microA
VDD=2V 18 - microA
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
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Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
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59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
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Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
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Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
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All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
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Worldwide Sales and Service
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Table 5-3 Operating Voltage and Frequency
Symbol Description Condition Min Max(1) Unit
fCLK_CPU Nominal operating system clock frequency VDD=[18 55]VTA=[-40 105]degC(2)
0 5 MHz
VDD=[27 55]VTA=[-40 105]degC(3)
0 10
VDD=[45 55]VTA=[-40 105]degC(4)
0 20
VDD=[27 55]VTA=[-40 125]degC(3)
0 8
VDD=[45 55]VTA=[-40 125]degC(3)
0 16
Note 1 Operation is guaranteed 5 above the maximum frequency2 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=18V3 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=27V4 Operation is guaranteed down to BOD triggering level VBOD with BODLEVEL=43V
The maximum CPU clock frequency depends on VDD As shown in the following figure the MaximumFrequency vs VDD is linear between 18V lt VDD lt 27V and 27V lt VDD lt 45V
Figure 5-1 Maximum Frequency vs VDD for [-40 105]degC
5MHz
10MHz
20MHz
18V 55V27V 45V
Safe Operating Area
53 Power Considerations
The average die junction temperature TJ (in degC) is given from the formula
TJ = TA+PD RθJA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 10
where PD is the total power dissipation
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 11
Mode Description Condition Typ Max Unit
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 07 - mA
VDD=3V 04 - mA
VDD=2V 025 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 56 - microA
VDD=3V 28 - microA
VDD=2V 18 - microA
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 12
Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 13
Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 14
Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 15
Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 16
59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 17
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 18
Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 19
Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 20
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
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0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
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VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
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-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
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15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
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0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
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00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
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40
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50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
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-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
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25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
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00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
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Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
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Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
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75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
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Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
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005
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015
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050
Vout
put[V
]
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Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
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035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
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0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
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Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
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00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
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0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
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Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
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Vout
put[V
]
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Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
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0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
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0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
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33
35
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0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
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Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
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00
02
04
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08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
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Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
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-04
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ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
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Idd
[microA]
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Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
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d [micro
A]
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Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
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Idd
[microA]
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Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
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BOD
leve
l [V]
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Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
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BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
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l [V]
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Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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Acc
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SB]
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Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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solu
te A
ccur
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[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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SB]
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Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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NL
[LSB
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Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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n [L
SB]
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Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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[LSB
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Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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Offs
et [L
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Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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ffset
[LSB
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11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
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Acc
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SB]
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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SB]
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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SB]
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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SB]
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Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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[LSB
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Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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et [L
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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et [L
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Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
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Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
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yste
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V]
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Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
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Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
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10O
ffset
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Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
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0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
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0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
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-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
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Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
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Worldwide Sales and Service
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where PD is the total power dissipation
The total thermal resistance of a package (RθJA) can be separated into two components RθJC and RθCArepresenting the barrier to heat flow from the semiconductor junction to the package (case) surface (RθJC)and from the case to the outside ambient air (RθCA) These terms are related by the equation
RθJA = RθJC + RθCA
RθJC is device related and cannot be influenced by the user However RθCA is user dependent and canbe minimized by thermal management techniques such as heat sinks ambient air cooling and thermalconvection Thus good thermal management on the part of the user can significantly reduce RθCA so thatRθJA approximately equals RθJC
The power dissipation curve is negatively sloped as ambient temperature increase The maximum powerdissipation is therefore at minimum ambient temperature while the highest junction temperature occurs atthe maximum ambient temperature
Table 5-4 Power Dissipation and Junction Temperature vs Temperature
Package TA Range RθJA (degCW) PD (W) typical TJ - TA(degC) typical
TSSOP28 -40degC to 125degC 10
54 Power ConsumptionThe values are measured power consumption under the following conditions except where noted
bull VDD=3Vbull TA=25degCbull OSC20M used as system clock source except where otherwise specifiedbull System power consumption measured with peripherals disabled and without IO drive
Table 5-5 Power Consumption in Active and Idle Mode
Mode Description Condition Typ Max Unit
Active Active power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 85 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 43 - mA
VDD=3V 23 - mA
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 215 - mA
VDD=3V 12 - mA
VDD=2V 075 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 164 - microA
VDD=3V 90 - microA
VDD=2V 60 - microA
Idle Idle power consumption fCLK_CPU=20 MHz (OSC20M) VDD=5V 28 - mA
fCLK_CPU=10 MHz (OSC20M div2) VDD=5V 14 - mA
VDD=3V 08 - mA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 11
Mode Description Condition Typ Max Unit
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 07 - mA
VDD=3V 04 - mA
VDD=2V 025 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 56 - microA
VDD=3V 28 - microA
VDD=2V 18 - microA
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 12
Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 13
Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 14
Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 15
Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 16
59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 17
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 18
Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 19
Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 20
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
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Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Mode Description Condition Typ Max Unit
fCLK_CPU=5 MHz (OSC20M div4) VDD=5V 07 - mA
VDD=3V 04 - mA
VDD=2V 025 - mA
fCLK_CPU=32 KHz (OSCULP32K) VDD=5V 56 - microA
VDD=3V 28 - microA
VDD=2V 18 - microA
Table 5-6 Power Consumption in Power-Down Standby and Reset Mode
Mode Description Condition Typ25degC
Max85degC
Max125degC
Unit
Standby Standby powerconsumption
RTC running at 1024kHz from externalXOSC32K (CL=75pF)
VDD=3V 069 - - microA
RTC running at 1024kHz from internalOSCULP32K
VDD=3V 065 TBD TBD microA
PowerDownStandby
Power downStandbypower consumptionare the same whenall peripherals arestopped
All peripheralsstopped
VDD=3V 010 TBD TBD microA
Reset Reset powerconsumption
RESET line pulled low VDD=3V 100 - - microA
55 Peripherals Power ConsumptionThe table below can be used to calculate the additional current consumption for the different IOperipherals in the various operating modes
Operating conditionsbull VDD=3Vbull T=25degCbull OSC20M at 1 MHz used as system clock source except where otherwise specified
Table 5-7 Peripherals Power Consumption
Peripheral Conditions Typ(1) Unit
BOD Continuous 19 microA
Sampling 1 kHz 12
TCA 16-bit count 1 MHz 126 microA
TCB 16-bit count 1 MHz 74 microA
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 12
Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 13
Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 14
Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 15
Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 16
59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 17
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 18
Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
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135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
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5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Peripheral Conditions Typ(1) Unit
RTC 16-bit count OSCULP32K 12 microA
WDT (including OSCULP32K) 07 microA
OSC20M 125 microA
AC Fast Mode(2) 92 microA
Low Power Mode(2) 45 microA
ADC 50 ksps 325 microA
100 ksps 340 microA
XOSC32K CL=75 pF 05 microA
OSCULP32K 04 microA
USART Enable 9600 Baud 13 microA
SPI (Master) Enable 100 kHz 21 microA
TWI (Master) Enable 100 kHz 239 microA
TWI (Slave) Enable 100 kHz 171 microA
Flash programming Erase Operation 15 mA
Write Operation 30
Note 1 Current consumption of the module only To calculate the total power consumption of the system
add this value to the base value in section ldquoPower Consumptionrdquo2 CPU in Standby mode
56 BOD and POR CharacteristicsTable 5-8 Power Supply Characteristics
Symbol Description Condition Min Typ Max Unit
SRON Power-on Slope - - 100 Vms
Table 5-9 Power On Reset (POR) Characteristics
Symbol Description Condition Min Typ Max Unit
VPOR POR threshold voltage on VDDfalling
VDD fallsrises at 05Vms or slower 08 - 16 V
POR threshold voltage on VDDrising
14 - 18
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 13
Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 14
Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 15
Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 16
59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 17
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 18
Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 20
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Table 5-10 Brownout Detection (BOD) Characteristics
Symbol Description Condition Min Typ Max Unit
VBOD BOD detection level (falling) BODLEVEL=18V 171 178 185 V
BODLEVEL=27V 245 260 275
BODLEVEL=43V 405 425 445
VHYS Hysteresis BODLEVEL=18V - 25 - mV
BODLEVEL=27V - 40 -
BODLEVEL=43V - 80 -
tBOD Detection time Continuous - 7 - micros
Sampled 1 kHz - 1 - ms
Sampled 125 Hz - 8 -
tstartup Start-up time Time from enable to ready - 40 - micros
ΔVLVD Interrupt level 0 Percentage above the selected BODlevel
- 4 -
Interrupt level 1 - 13 -
Interrupt level 2 - 25 -
57 External Reset CharacteristicsTable 5-11 External Reset Characteristics
Mode Description Condition Min Typ Max Unit
VVIH_RST Input Voltage for RESET 07timesVDD - VDD+02 V
VVIL_RST Input Low Voltage for RESET -02 - 03timesVDD
tMIN_RST Minimum pulse width on RESET pin 300 - - ns
Rp_RST RESET pull-up resistor VReset=0V 20 35 50 kΩ
58 Oscillators and ClocksOperating conditions
bull VDD=3V except where specified otherwise
Table 5-12 20 MHz Internal Oscillator (OSC20M) Characteristics
Symbol Description Condition Min Typ Max Unit
fOSC20M Factory calibrationfrequency
FREQSEL=0 TA=25degC 30V 16 MHz
FREQSEL=1 20
fCAL Frequency calibration range OSC16M(2) 145 175 MHz
OSC20M(2) 185 215 MHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 14
Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 15
Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 16
59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 17
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
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Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Symbol Description Condition Min Typ Max Unit
Factory calibration accuracy TA=25degC 30V TBD plusmn075 TBD
ETOTAL Total error with 16 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
Total error with 20 MHzfrequency selection
From targetfrequency
TA=[0 70]degCVDD=[18 36]V
TBD plusmn2 TBD
Full operationrange
TBD plusmn3 TBD
EDRIFT Accuracy with 16 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
Accuracy with 20 MHzFrequency Selection relativeto the factory-storedfrequency value
Factory calibratedVDD=3V(1)
TA=[0 70]degCVDD=[18 55]V
TBD plusmn15 TBD
ΔfOSC20M Calibration step size - 075 -
DOSC20M Duty cycle - 50 -
tstartup Start-up time Within 2accuracy
- 12 - micros
Note 1 See also the description of OSC20M on calibration2 Oscillator Frequencies above speed specification must be divided so that CPU clock always is
within specification
Table 5-13 32768 kHz Internal Oscillator (OSCULP32K) Characteristics
Symbol Description Condition Condition Min Typ Max Unit
fOSCULP32K Factory calibrationfrequency
32768 kHz
Factory calibrationaccuracy
TA=25degC 30V -3 plusmn2 3
ETOTAL Total error from targetfrequency
Factorycalibrated
TA=[0 70]degCVDD=[18 36]V
-10 plusmn5 +10
Full operationrange
-30 plusmn10 +30
DOSCULP32K Duty cycle 50
tstartup Start-up time - 250 - micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 15
Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 16
59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 17
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 18
Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 19
Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 20
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Table 5-14 32768 kHz External Crystal Oscillator (XOSC32K) Characteristics
Symbol Description Condition Min Typ Max Unit
fout Frequency - 32768 - kHz
tstartup Startup time CL=75 pF - 300 - ms
CL=125 pF - TBD -
CL Crystal load capacitance 75 - 125 pF
CTOSC1 Parasitic capacitor load - 55 - pF
CTOSC2 - 55 - pF
ESR Equivalent Series Resistance - Safety Factor=3 CL=75 pF - - 80 kΩ
CL=125 pF - - 40
Figure 5-2 External Clock Waveform Characteristics
VIL1
VIH1
Table 5-15 External Clock Characteristics
Symbol Description Condition VDD=[18 55]V VDD=[2755]V
VDD=[4555]V
Unit
Min Max Min Max Min Max
fCLCL Frequency 0 50 00 100 00 200 MHz
tCLCL Clock Period 200 - 100 - 50 - ns
tCHCX High Time 80 - 40 - 20 - ns
tCLCX Low Time 80 - 40 - 20 - ns
tCLCH Rise Time (formaximumfrequency)
- 40 - 20 - 10 ns
tCHCL Fall Time (formaximumfrequency)
- 40 - 20 - 10 ns
ΔtCLCL Change in periodfrom one clockcycle to the next
- 20 - 20 - 20
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 16
59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 17
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 18
Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 19
Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 20
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
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50
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70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
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30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
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70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
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20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
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08
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20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
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14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
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08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
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Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
59 IO Pin CharacteristicsTable 5-16 IO Pin Characteristics (TA=[-40 85]degC VDD=[18 55]V unless otherwise noted)
Symbol Description Condition Min Typ Max Unit
VIL Input Low Voltage -02 - 03timesVDD V
VIH Input High Voltage 07timesVDD - VDD+02V V
IIH IIL IO pin Input Leakage Current VDD=55V Pin high - lt 005 - microA
VDD=55V Pin low - lt 005 -
VOL IO pin drive strength VDD=18V IOL=15 mA - - 036 V
VDD=30V IOL=75 mA - - 06
VDD=50V IOL=15 mA - - 1
VOH IO pin drive strength VDD=18V IOH=15 mA 144 - - V
VDD=30V IOH=75 mA 24 - -
VDD=50V IOH=15 mA 4 - -
Itotal Maximum combined IO sinksource current per pin group(1)
- - 100 mA
Maximum combined IO sinksource current per pin group(1)
TA=25degC - - 200
tRISE Rise time VDD=30V load=20 pF - 25 - ns
VDD=50V load=20 pF - 15 -
VDD=30V load=20 pFslew rate enabled
- 19 -
VDD=50V load=20 pFslew rate enabled
- 9 -
tFALL Fall time VDD=30V load=20 pF - 20 - ns
VDD=50V load=20 pF - 13 -
VDD=30V load=20 pFslew rate enabled
- 21 -
VDD=50V load=20 pFslew rate enabled
- 11 -
Cpin IO pin capacitance except forTOSC VREFA and TWI pins
- 35 - pF
Cpin IO pin capacitance on TOSC pins - 4 - pF
Cpin IO pin capacitance on TWI pins - 10 - pF
Cpin IO pin capacitance on VREFA pin - 14 - pF
Rp Pull-up resistor 20 35 50 kΩ
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 17
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 18
Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 19
Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 20
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
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Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Note 1 Pin group A (PA[70]) PF[62]) pin group B (PB[70] PC[70]) pin group C (PD70 PE[30]
PF[10]) For 28-pin and 32-pin devices pin group A and B should be seen as a single group Thecombined continuous sinksource current for each individual group should not exceed the limits
510 VREFTable 5-17 Internal Voltage Reference Characteristics
Symbol Description Min Typ Max Unit
tstart Start-up time - 25 - micros
VDDINT055V Power supply voltage range for INT055V 18 - 55 V
VDDINT11V Power supply voltage range for INT11V 18 - 55
VDDINT15V Power supply voltage range for INT15V 18 - 55
VDDINT25V Power supply voltage range for INT25V 30 - 55
VDDINT43V Power supply voltage range for INT43V 48 - 55
Table 5-18 ADC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT11V Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-20 20
INT055VINT15VINT25V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the ADC0REFSEL bit field in the
VREFCTRLA register
Table 5-19 AC Internal Voltage Reference Characteristics(1)
Symbol(2) Description Condition Min Typ Max Unit
INT055VINT11V
Internal reference voltage VDD=[18V 36V]T=[0 - 105]degC
-30 30
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 18
Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 19
Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 20
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
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copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Symbol(2) Description Condition Min Typ Max Unit
INT15VINT25V
INT055VINT11VINT15VINT25VINT43V
Internal reference voltage VDD=[18V 55V]T=[-40 - 125]degC
-50 50
Note 1 These values are based on characterization and not covered by production test limits2 The symbols INTxxV refer to the respective values of the AC0REFSEL bit field in the VREFCTRLA
register
511 ADC
5111 Internal Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 10 pF for 055V reference while it is set to 5 pF for VREFge11Vbull Applies for all allowed combinations of VREF selections and Sample Rates unless otherwise noted
Table 5-20 Power Supply Reference and Input Range
Symbol Description Conditions Min Typ Max Unit
VDD Supply voltage CLKADC le 15 MHz 18 - 55 V
CLKADC gt 15 MHz 27 - 55
VREF Reference voltage REFSEL = Internal reference 055 - VDD-05 V
REFSEL = External reference 11 VDD
REFSEL = VDD 18 - 55
CIN Input capacitance SAMPCAP=5 pF - 5 - pF
SAMPCAP=10 pF - 10 -
VIN Input voltage range 0 - VREF V
IBAND Input bandwidth 11VleVREF - - 575 kHz
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
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6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
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135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
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21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
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Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Table 5-21 Clock and Timing Characteristics
Symbol Description Conditions Min Typ Max Unit
fADC Sample rate 11VleVREF 15 - 115 ksps
11VleVREF (8-bit resolution) 15 - 150
VREF=055V (10 bits) 75 - 20
CLKADC Clock frequency VREF=055V (10 bits) 100 - 260 kHz
11VleVREF (10 bits) 200 - 1500
11VleVREF (8-bit resolution) 200 - 2000
Ts Sampling time 2 2 33 CLKADC cycles
TCONV Conversion time (latency) Sampling time = 2 CLKADC 87 - 50 micros
TSTART Start-up time Internal VREF - 22 - micros
Table 5-22 Accuracy Characteristics Internal Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
REFSEL =INTERNAL
VREF=055V
fADC=77 ksps - 10 - LSB
REFSEL =INTERNAL or VDD
fADC=15 ksps - 10 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 10 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
REFSEL =INTERNAL
VREF = 055V
fADC=77 ksps - 06 - LSB
REFSEL =INTERNAL
VREF = 11V
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
15VleVREF
fADC=15 ksps - 04 -
REFSEL =INTERNAL or VDD
11VleVREF
fADC=77 ksps - 04 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 20
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
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120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
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150
200
250
300
350
400
450
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600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
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90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
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120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
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30
35
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50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
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25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
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50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
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30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
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30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
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90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
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50
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70
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90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
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30
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
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80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
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12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
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01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
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01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
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155
160
165
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180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
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21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
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43
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46
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50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
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05
10
15
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25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
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03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
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02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
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-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
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5
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30
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50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
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05
10
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25
30
35
40
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50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
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05
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50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
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172
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176
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182
184
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190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
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258
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268
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272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
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418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
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Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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-16
-12
-08
-04
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04
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16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
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100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
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80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
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Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
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20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
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8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
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50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Symbol Description Conditions Min Typ Max Unit
REFSEL =INTERNAL
11VleVREF
fADC=115 ksps - 05 -
REFSEL = VDD
18VleVREF
fADC=115 ksps - 09 -
EABS Absoluteaccuracy
REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- lt10 - LSB
VDD = [18V-36V] - lt15 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- lt35 -
EGAIN Gain error REFSEL =INTERNAL
VREF = 11V
T=[0-105]degC
VDD = [18V-36V]
- plusmn15 - LSB
VDD = [18V-36V] - plusmn20 -
REFSEL = VDD - 2 -
REFSEL =INTERNAL
- plusmn35 -
EOFF Offset error REFSEL =INTERNAL
VREF = 055V
- -05 - LSB
REFSEL =INTERNAL
11V le VREF
- -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits3 Reference setting and fADC must fulfill the specification in Clock and Timing Characteristics and
Power supply Reference and Input Range tables
5112 External Reference CharacteristicsOperating conditions
bull VDD = 18 to 55Vbull Temperature = -40degC to 125degCbull DUTYCYC = 25bull CLKADC = 13 fADC
bull SAMPCAP is 5 pF
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 21
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
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copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
The accuracy characteristics numbers are based on characterization of the following input referencelevels and VDD ranges
bull Vref = 18 V VDD = 18 to 55Vbull Vref = 26 V VDD = 27 to 55Vbull Vref = 4096 V VDD = 45 to 55Vbull Vref = 43 V VDD = 45 to 55V
Table 5-23 Accuracy Characteristics External Reference(2)
Symbol Description Conditions Min Typ Max Unit
Res Resolution - 10 - bit
INL Integral Non-linearity
fADC=15 ksps - 09 - LSB
fADC=77 ksps - 09 -
fADC=115 ksps - 12 -
DNL(1) DifferentialNon-linearity
fADC=15 ksps - 02 - LSB
fADC=77 ksps - 04 -
fADC=115 ksps - 08 -
EABS Absoluteaccuracy
fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EGAIN Gain error fADC=15 ksps - 2 - LSB
fADC=77 ksps - 2 -
fADC=115 ksps - 2 -
EOFF Offset error - -05 - LSB
Note 1 A DNL error of less than or equal to 1 LSB ensures a monotonic transfer function with no missing
codes2 These values are based on characterization and not covered by production test limits
512 ACTable 5-24 Analog Comparator Characteristics
Symbol Description Condition Min Typ Max Unit
VIN Input Voltage Low Power Mode -02 - VDD V
High speed mode -02 - VDD
CIN Input Pin Capacitance PD1 to PD6 - 35 - pF
PD7 - 14 -
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 22
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
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5
10
15
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30
35
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45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
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05
10
15
20
25
30
35
40
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50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
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05
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15
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30
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50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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60
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90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
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60
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80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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02
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20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
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06
08
10
12
14
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18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Symbol Description Condition Min Typ Max Unit
VOFF Input Offset Voltage Low PowerMode
07VltVINlt(VDD-07V) TBD plusmn10 TBD mV
VIN=[0V VDD] - plusmn30 -
Input Offset Voltage High-speedMode
07VltVINlt(VDD-07V) TBD plusmn5 TBD
VIN=[-02V VDD] - plusmn20 -
IL Input Leakage Current - 5 - nA
TSTART Start-up Time - 13 - micros
VHYS Hysteresis High-speed mode HYSMODE=0x0 - 0 - mV
HYSMODE=0x1 - 10 -
HYSMODE=0x2 - 25 -
HYSMODE=0x3 - 50 -
tPD Propagation Delay 25 mV Overdrive VDDge27V Highspeed mode
- 50 - ns
25 mV Overdrive VDDge27V LowPower Mode
- 150 -
513 UPDI Timing
UPDI Enable Sequence
Symbol Description Min Max Unit
TRES Duration of HandshakeBreak on RESET 10 200 micros
TUPDI Duration of UPDItxd=0 10 200 micros
TDeb0 Duration of Debuggertxd=0 02 1 micros
TDebZ Duration of Debuggertxd=z 200 14000 micros
ATmega32084808 ndash 28-pin Data SheetElectrical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 23
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
200
250
300
350
400
450
500
550
600
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
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Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
6 Typical Characteristics
61 Power Consumption
611 Supply Currents in Active ModeFigure 6-1 Active Supply Current vs Frequency (1-20 MHz) at T=25degC
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120
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
Figure 6-2 Active Supply Current vs Frequency [01 10] MHz at T=25degC
0
50
100
150
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250
300
350
400
450
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00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 24
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
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-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
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110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
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0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
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75
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125
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00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
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25
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35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
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4
6
8
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12
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
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-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
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80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
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40
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25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
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30
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
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120
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240
280
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00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
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20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
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35
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45
50
55
60
65
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75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
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65
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Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
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01
02
03
04
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06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
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01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
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00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
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26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
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50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
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05
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50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
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03
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20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
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13
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18
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30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
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43
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0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
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08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
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08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
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-08
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Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
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00
02
04
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ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
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Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
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d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
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Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
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BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
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BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
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leve
l [V]
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Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
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solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
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Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
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80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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et [L
SB]
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Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
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lute
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urac
y [L
SB]
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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lute
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Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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SB]
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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n [L
SB]
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
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n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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[LSB
]
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-3 Active Supply Current vs Temperature (f=20 MHz OSC20M)
00
10
20
30
40
50
60
70
80
90
100
110
120
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
Figure 6-4 Active Supply Current vs VDD (f=[125 20] MHz OSC20M) at T=25degC
00
10
20
30
40
50
60
70
80
90
100
110
120
15 20 25 30 35 40 45 50 55Vdd [V]
Frequency [MHz]1252551020
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 25
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-5 Active Supply Current vs VDD (f=32 KHz OSCULP32K)
0
4
8
12
16
20
24
28
32
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
612 Supply Currents in Idle ModeFigure 6-6 Idle Supply Current vs Frequency (1-20 MHz) at T=25degC
00
05
10
15
20
25
30
35
40
45
50
0 2 4 6 8 10 12 14 16 18 20Frequency [MHz]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 26
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
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100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
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08
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DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
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18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
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80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
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08
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12
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20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
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14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
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20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
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20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-7 Idle Supply Current vs Low Frequency (01-10 MHz) at T=25degC
0
25
50
75
100
125
150
175
200
225
250
00 01 02 03 04 05 06 07 08 09 10Frequency [MHz]
VDD [V]18222733642555
Figure 6-8 Idle Supply Current vs Temperature (f=20 MHz OSC20M)
00
05
10
15
20
25
30
35
40
45
50
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]45555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 27
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-9 Idle Supply Current vs VDD (f=32 KHz OSCULP32K)
0
2
4
6
8
10
12
14
16
18
20
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
613 Supply Currents in Power-Down ModeFigure 6-10 Power-Down Mode Supply Current vs Temperature (all functions disabled)
00
10
20
30
40
50
60
70
80
-40 -20 0 20 40 60 80 100 120Temperature [degC]
VDD [V]18222733642555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 28
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
00
10
20
30
40
50
60
70
80
25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
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copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-11 Power-Down Mode Supply Current vs VDD (all functions disabled)
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50
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-12 Power-Down Mode Supply Current vs VDD (all functions disabled)
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50
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25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 29
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
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100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
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70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
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30
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15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
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360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
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Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
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55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
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40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
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50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
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01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
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01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
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145
150
155
160
165
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180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
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21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
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42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
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25
30
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40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
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13
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0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
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-08
-06
-04
-02
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02
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08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
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-08
-06
-04
-02
00
02
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06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
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08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
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50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
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50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
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50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
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174
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182
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BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
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272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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-10
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Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
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80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
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Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
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-16
-12
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20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
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lute
Acc
urac
y [L
SB]
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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lute
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y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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SB]
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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SB]
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Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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n [L
SB]
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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[LSB
]
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
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Offs
et [L
SB]
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Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
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-04
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et [L
SB]
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Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
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tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
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yste
resi
s [m
V]
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Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
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Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
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10O
ffset
[mV]
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Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
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0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
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0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
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205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
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Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
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370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
614 Supply Currents in Standby ModeFigure 6-13 Standby Mode Supply Current vs VDD (RTC running with internal OSCULP32K)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
Figure 6-14 Standby Mode Supply Current vs VDD (Sampled BOD running at 125 Hz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 30
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-15 Standby Mode Supply Current vs VDD (Sampled BOD running at 1 kHz)
00
10
20
30
40
50
60
70
80
90
100
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
615 Power on Supply CurrentsFigure 6-16 Power-on Supply Current vs VDD (BOD enabled at 43V level)
0
40
80
120
160
200
240
280
320
360
400
00 05 10 15 20 25 30 35 40 45Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 31
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
62 GPIO
GPIO Input CharacteristicsFigure 6-17 IO Pin Input Hysteresis vs VDD
00
02
04
06
08
10
12
14
16
18
20
Thre
shol
d [V
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-18 IO Pin Input Threshold Voltage vs VDD (T=25degC)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
TresholdVihVil
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 32
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
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Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-19 IO Pin Input Threshold Voltage vs VDD (VIH)
25
30
35
40
45
50
55
60
65
70
75Th
resh
old
[]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
Figure 6-20 IO Pin Input Threshold Voltage vs VDD (VIL)
25
30
35
40
45
50
55
60
65
70
75
Thre
shol
d [
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature[degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 33
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
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4
6
8
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12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
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80
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100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
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10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
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08
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12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
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18
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22
24
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32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
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198
199
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201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
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199
200
201
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205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
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370
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390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
GPIO Output CharacteristicsFigure 6-21 IO Pin Output Voltage vs Sink Current (VDD=18V)
000
005
010
015
020
025
030
035
040
045
050
Vout
put[V
]
00 02 04 06 08 10 12 14 16 18 20
Sink current [mA]
Temperature[degC]-40-200257085105125
Figure 6-22 IO Pin Output Voltage vs Sink Current (VDD=30V)
000
005
010
015
020
025
030
035
040
045
050
0 1 2 3 4 5 6 7 8 9 10Sink current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 34
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-23 IO Pin Output Voltage vs Sink Current (VDD=50V)
00
01
02
03
04
05
06
07
08
09
10
0 2 4 6 8 10 12 14 16 18 20Sink current [mA]
Temperature [degC]-40-200257085105125
Figure 6-24 IO Pin Output Voltage vs Sink Current (T=25degC)
00
01
02
03
04
05
06
07
08
09
10
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Sink current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 35
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-25 IO Pin Output Voltage vs Source Current (VDD=18V)
130
135
140
145
150
155
160
165
170
175
180
00 02 04 06 08 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-26 IO Pin Output Voltage vs Source Current (VDD=30V)
20
21
22
23
24
25
26
27
28
29
30
0 1 2 3 4 5 6 7 8 9 10Source current [mA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 36
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-27 IO Pin Output Voltage vs Source Current (VDD=50V)
40
41
42
43
44
45
46
47
48
49
50
0 2 4 6 8 10 12 14 16 18 20Source current [mA]
Temperature [degC]-40-200257085105125
Figure 6-28 IO Pin Output Voltage vs Source Current (T=25degC)
00
05
10
15
20
25
30
35
40
45
50
Vout
put[V
]
0 2 4 6 8 10 12 14 16 18 20
Source current [mA]
Vdd [V]18222345
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 37
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
GPIO Pull-Up CharacteristicsFigure 6-29 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=18V)
00
03
05
08
10
13
15
18
20
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
Figure 6-30 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=30V)
10
13
15
18
20
23
25
28
30
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 38
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-31 IO Pin Pull-Up Resistor Current vs Input Voltage (VDD=50V)
30
33
35
38
40
43
45
48
50
0 5 10 15 20 25 30 35 40 45 50Pull-up resistor current [microA]
Temperature [degC]-40-200257085105125
63 VREF CharacteristicsFigure 6-32 Internal 055V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 39
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-33 Internal 11V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]235
Figure 6-34 Internal 25V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10
Vref
erro
r [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]35
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 40
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-35 Internal 43V Reference vs Temperature
-10
-08
-06
-04
-02
00
02
04
06
08
10Vr
ef e
rror [
]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]5
64 BOD Characteristics
BOD Current vs VDDFigure 6-36 BOD Current vs VDD (Continuous Mode Enabled)
0
5
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 41
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-37 BOD Current vs VDD (Sampled BOD at 125 Hz)
00
05
10
15
20
25
30
35
40
45
50Id
d [micro
A]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
Figure 6-38 BOD Current vs VDD (Sampled BOD at 1 kHz)
00
05
10
15
20
25
30
35
40
45
50
Idd
[microA]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-400257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 42
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
BOD Threshold vs TemperatureFigure 6-39 BOD Threshold vs Temperature (Level 18V)
170
172
174
176
178
180
182
184
186
188
190
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
Figure 6-40 BOD Threshold vs Temperature (Level 26V)
256
258
260
262
264
266
268
270
272
274
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 43
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-41 BOD Threshold vs Temperature (Level 43V)
416
418
420
422
424
426
428
430
432
434
BOD
leve
l [V]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Falling VDDRising VDD
65 ADC CharacteristicsFigure 6-42 Absolute Accuracy vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 44
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-43 Absolute Accuracy vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80
90
100Ab
solu
te A
ccur
acy
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-44 DNL Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 45
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-45 DNL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20D
NL
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-46 Gain Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 46
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-47 Gain Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
10
20
30
40
50
60
70
80G
ain
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-48 INL vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 47
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-49 INL vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
00
02
04
06
08
10
12
14
16
18
20IN
L [L
SB]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-50 Offset Error vs VDD (fADC=115 ksps) at T=25degC REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V]11152543VDD
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 48
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-51 Offset Error vs Vref (VDD=50V fADC=115 ksps) REFSEL = Internal Reference
-20
-16
-12
-08
-04
00
04
08
12
16
20O
ffset
[LSB
]
11 15 25 43 VDD
Vref [V]
Temperature [degC]-402585105
Figure 6-52 Absolute Accuracy vs VDD (fADC=115 ksps T=25degC) REFSEL = External Reference
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 49
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-53 Absolute Accuracy vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
90
100
Abso
lute
Acc
urac
y [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-54 DNL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 50
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-55 DNL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
DN
L [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-56 Gain vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-10
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 51
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-57 Gain vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
10
20
30
40
50
60
70
80
Gai
n [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-58 INL vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 52
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-59 INL vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
00
02
04
06
08
10
12
14
16
18
20
INL
[LSB
]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
Figure 6-60 Offset vs VDD (fADC=115 ksps T=25degC REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
15 20 25 30 35 40 45 50 55
Vdd [V]
Vref [V] 1826409643
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 53
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-61 Offset vs VREF (VDD=50V fADC=115 ksps REFSEL = External Reference)
-20
-16
-12
-08
-04
00
04
08
12
16
20
Offs
et [L
SB]
18 26 4096 43
Vref [V]
Temperature [degC]-402585105
66 AC CharacteristicsFigure 6-62 Hysteresis vs VCM - 10 mV (VDD=5V)
0
2
4
6
8
10
12
14
16
18
20
Hys
tere
sis
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 54
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-63 Hysteresis vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
8
16
24
32
40
48
56
64
72
80H
yste
resi
s [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
Figure 6-64 Offset vs VCM - 10 mV (VDD=5V)
00
10
20
30
40
50
60
70
80
90
100
Offs
et [m
V]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
Temperature [degC]-40-200255585105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 55
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-65 Offset vs VCM - 10 mV to 50 mV (VDD=5V T=25degC)
0
1
2
3
4
5
6
7
8
9
10O
ffset
[mV]
-05 00 05 10 15 20 25 30 35 40 45 50 55
Vcommon mode [V]
HYSMODE10mV25mV50mV
67 OSC20M CharacteristicsFigure 6-66 OSC20M Internal Oscillator Calibration Stepsize vs Calibration Value (VDD=3V)
00
02
04
06
08
10
12
14
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 56
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-67 OSC20M Internal Oscillator Frequency vs Calibration Value (VDD=3V)
10
12
14
16
18
20
22
24
26
28
30
32
0 16 32 48 64 80 96 112 128OSCCAL [x1]
Temperature [degC]-40-200257085105125
Figure 6-68 OSC20M Internal Oscillator Frequency vs Temperature
195
196
197
198
199
200
201
202
203
204
205
-40 -20 0 20 40 60 80 100 120Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 57
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-69 OSC20M Internal Oscillator Frequency vs VDD
195
196
197
198
199
200
201
202
203
204
205
15 20 25 30 35 40 45 50 55Vdd [V]
Temperature [degC]-40-200257085105125
68 OSCULP32K CharacteristicsFigure 6-70 OSCULP32K Internal Oscillator Frequency vs Temperature
300
310
320
330
340
350
360
370
380
390
400
Freq
uenc
y [k
Hz]
-40 -20 0 20 40 60 80 100 120
Temperature [degC]
Vdd [V]182227336555
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 58
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Figure 6-71 OSCULP32K Internal Oscillator Frequency vs VDD
300
310
320
330
340
350
360
370
380
390
400Fr
eque
ncy
[kH
z]
15 20 25 30 35 40 45 50 55
Vdd [V]
Temperature [degC]-40-200257085105125
ATmega32084808 ndash 28-pin Data SheetTypical Characteristics
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 59
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
7 Package Drawings
71 28-Pin SSOP
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 60
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Table 7-1 Device and Package Maximum Weight
TBD mg
Table 7-2 Package Characteristics
Moisture Sensitivity Level TBD
Table 7-3 Package Reference
JEDEC Drawing Reference TBD
JESD97 Classification TBD
ATmega32084808 ndash 28-pin Data SheetPackage Drawings
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 61
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
8 Conventions
81 Memory Size and TypeTable 8-1 Memory Size and Bit Rate
Symbol Description
KB kilobyte (210 = 1024)
MB megabyte (220 = 10241024)
GB gigabyte (230 = 102410241024)
b bit (binary 0 or 1)
B byte (8 bits)
1 kbits 1000 bits rate (not 1024 bits)
1 Mbits 1000000 bits rate
1 Gbits 1000000000 bits rate
word 16-bit
82 Frequency and TimeTable 8-2 Frequency and Time
Symbol Description
kHz 1 kHz = 103 Hz = 1000 Hz
KHz 1 KHz = 1024 Hz 32 KHz = 32768 Hz
MHz 1 MHz = 106 Hz = 1000000 Hz
GHz 1 GHz = 109 Hz = 1000000000 Hz
s second
ms millisecond
micros microsecond
ns nanosecond
ATmega32084808 ndash 28-pin Data SheetConventions
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 62
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
9 Data Sheet Revision HistoryNote The data sheet revision is independent of the die revision and the device variant (last letter of theordering number)
91 Rev A - 022018Initial release
ATmega32084808 ndash 28-pin Data SheetData Sheet Revision History
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 63
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
The Microchip Web Site
Microchip provides online support via our web site at httpwwwmicrochipcom This web site is used asa means to make files and information easily available to customers Accessible by using your favoriteInternet browser the web site contains the following information
bull Product Support ndash Data sheets and errata application notes and sample programs designresources userrsquos guides and hardware support documents latest software releases and archivedsoftware
bull General Technical Support ndash Frequently Asked Questions (FAQ) technical support requestsonline discussion groups Microchip consultant program member listing
bull Business of Microchip ndash Product selector and ordering guides latest Microchip press releaseslisting of seminars and events listings of Microchip sales offices distributors and factoryrepresentatives
Customer Change Notification Service
Microchiprsquos customer notification service helps keep customers current on Microchip productsSubscribers will receive e-mail notification whenever there are changes updates revisions or erratarelated to a specified product family or development tool of interest
To register access the Microchip web site at httpwwwmicrochipcom Under ldquoSupportrdquo click onldquoCustomer Change Notificationrdquo and follow the registration instructions
Customer Support
Users of Microchip products can receive assistance through several channels
bull Distributor or Representativebull Local Sales Officebull Field Application Engineer (FAE)bull Technical Support
Customers should contact their distributor representative or Field Application Engineer (FAE) for supportLocal sales offices are also available to help customers A listing of sales offices and locations is includedin the back of this document
Technical support is available through the web site at httpwwwmicrochipcomsupport
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 64
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
Product Identification System
To order or obtain information eg on pricing or delivery refer to the factory or the listed sales office
Carrier TypeAT mega 4809 - MFR
Flash size in KBSeries name
Pin count9=48 pins8=32 pins (SSOP 28 pins)
Package TypeA=TQFPM=QFNX=SSOP
Temperature Range F=-40degC to +125degC
R=Tape amp Reel
Note Tape and Reel identifier only appears in the catalog part number description This identifier isused for ordering purposes and is not printed on the device package Check with your Microchip SalesOffice for package availability with the Tape and Reel option
Microchip Devices Code Protection Feature
Note the following details of the code protection feature on Microchip devices
bull Microchip products meet the specification contained in their particular Microchip Data Sheetbull Microchip believes that its family of products is one of the most secure families of its kind on the
market today when used in the intended manner and under normal conditionsbull There are dishonest and possibly illegal methods used to breach the code protection feature All of
these methods to our knowledge require using the Microchip products in a manner outside theoperating specifications contained in Microchiprsquos Data Sheets Most likely the person doing so isengaged in theft of intellectual property
bull Microchip is willing to work with the customer who is concerned about the integrity of their codebull Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their
code Code protection does not mean that we are guaranteeing the product as ldquounbreakablerdquo
Code protection is constantly evolving We at Microchip are committed to continuously improving thecode protection features of our products Attempts to break Microchiprsquos code protection feature may be aviolation of the Digital Millennium Copyright Act If such acts allow unauthorized access to your softwareor other copyrighted work you may have a right to sue for relief under that Act
Legal Notice
Information contained in this publication regarding device applications and the like is provided only foryour convenience and may be superseded by updates It is your responsibility to ensure that yourapplication meets with your specifications MICROCHIP MAKES NO REPRESENTATIONS ORWARRANTIES OF ANY KIND WHETHER EXPRESS OR IMPLIED WRITTEN OR ORAL STATUTORYOR OTHERWISE RELATED TO THE INFORMATION INCLUDING BUT NOT LIMITED TO ITSCONDITION QUALITY PERFORMANCE MERCHANTABILITY OR FITNESS FOR PURPOSEMicrochip disclaims all liability arising from this information and its use Use of Microchip devices in lifesupport andor safety applications is entirely at the buyerrsquos risk and the buyer agrees to defendindemnify and hold harmless Microchip from any and all damages claims suits or expenses resulting
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 65
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
from such use No licenses are conveyed implicitly or otherwise under any Microchip intellectualproperty rights unless otherwise stated
Trademarks
The Microchip name and logo the Microchip logo AnyRate AVR AVR logo AVR Freaks BeaconThingsBitCloud CryptoMemory CryptoRF dsPIC FlashFlex flexPWR Heldo JukeBlox KeeLoq KeeLoq logoKleer LANCheck LINK MD maXStylus maXTouch MediaLB megaAVR MOST MOST logo MPLABOptoLyzer PIC picoPower PICSTART PIC32 logo Prochip Designer QTouch RightTouch SAM-BASpyNIC SST SST Logo SuperFlash tinyAVR UNIO and XMEGA are registered trademarks ofMicrochip Technology Incorporated in the USA and other countries
ClockWorks The Embedded Control Solutions Company EtherSynch Hyper Speed Control HyperLightLoad IntelliMOS mTouch Precision Edge and Quiet-Wire are registered trademarks of MicrochipTechnology Incorporated in the USA
Adjacent Key Suppression AKS Analog-for-the-Digital Age Any Capacitor AnyIn AnyOut BodyComchipKIT chipKIT logo CodeGuard CryptoAuthentication CryptoCompanion CryptoControllerdsPICDEM dsPICDEMnet Dynamic Average Matching DAM ECAN EtherGREEN In-Circuit SerialProgramming ICSP Inter-Chip Connectivity JitterBlocker KleerNet KleerNet logo Mindi MiWimotorBench MPASM MPF MPLAB Certified logo MPLIB MPLINK MultiTRAK NetDetach OmniscientCode Generation PICDEM PICDEMnet PICkit PICtail PureSilicon QMatrix RightTouch logo REALICE Ripple Blocker SAM-ICE Serial Quad IO SMART-IS SQI SuperSwitcher SuperSwitcher II TotalEndurance TSHARC USBCheck VariSense ViewSpan WiperLock Wireless DNA and ZENA aretrademarks of Microchip Technology Incorporated in the USA and other countries
SQTP is a service mark of Microchip Technology Incorporated in the USA
Silicon Storage Technology is a registered trademark of Microchip Technology Inc in other countries
GestIC is a registered trademark of Microchip Technology Germany II GmbH amp Co KG a subsidiary ofMicrochip Technology Inc in other countries
All other trademarks mentioned herein are property of their respective companiescopy 2018 Microchip Technology Incorporated Printed in the USA All Rights Reserved
ISBN 978-1-5224-2715-5
Quality Management System Certified by DNV
ISOTS 16949Microchip received ISOTS-169492009 certification for its worldwide headquarters design and waferfabrication facilities in Chandler and Tempe Arizona Gresham Oregon and design centers in Californiaand India The Companyrsquos quality system processes and procedures are for its PICreg MCUs and dsPICreg
DSCs KEELOQreg code hopping devices Serial EEPROMs microperipherals nonvolatile memory andanalog products In addition Microchiprsquos quality system for the design and manufacture of developmentsystems is ISO 90012000 certified
ATmega32084808 ndash 28-pin Data Sheet
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 66
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
Austria - WelsTel 43-7242-2244-39Fax 43-7242-2244-393Denmark - CopenhagenTel 45-4450-2828Fax 45-4485-2829Finland - EspooTel 358-9-4520-820France - ParisTel 33-1-69-53-63-20Fax 33-1-69-30-90-79Germany - GarchingTel 49-8931-9700Germany - HaanTel 49-2129-3766400Germany - HeilbronnTel 49-7131-67-3636Germany - KarlsruheTel 49-721-625370Germany - MunichTel 49-89-627-144-0Fax 49-89-627-144-44Germany - RosenheimTel 49-8031-354-560Israel - RarsquoananaTel 972-9-744-7705Italy - MilanTel 39-0331-742611Fax 39-0331-466781Italy - PadovaTel 39-049-7625286Netherlands - DrunenTel 31-416-690399Fax 31-416-690340Norway - TrondheimTel 47-7289-7561Poland - WarsawTel 48-22-3325737Romania - BucharestTel 40-21-407-87-50Spain - MadridTel 34-91-708-08-90Fax 34-91-708-08-91Sweden - GothenbergTel 46-31-704-60-40Sweden - StockholmTel 46-8-5090-4654UK - WokinghamTel 44-118-921-5800Fax 44-118-921-5820
Worldwide Sales and Service
copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
AMERICAS ASIAPACIFIC ASIAPACIFIC EUROPECorporate Office2355 West Chandler BlvdChandler AZ 85224-6199Tel 480-792-7200Fax 480-792-7277Technical SupporthttpwwwmicrochipcomsupportWeb AddresswwwmicrochipcomAtlantaDuluth GATel 678-957-9614Fax 678-957-1455Austin TXTel 512-257-3370BostonWestborough MATel 774-760-0087Fax 774-760-0088ChicagoItasca ILTel 630-285-0071Fax 630-285-0075DallasAddison TXTel 972-818-7423Fax 972-818-2924DetroitNovi MITel 248-848-4000Houston TXTel 281-894-5983IndianapolisNoblesville INTel 317-773-8323Fax 317-773-5453Tel 317-536-2380Los AngelesMission Viejo CATel 949-462-9523Fax 949-462-9608Tel 951-273-7800Raleigh NCTel 919-844-7510New York NYTel 631-435-6000San Jose CATel 408-735-9110Tel 408-436-4270Canada - TorontoTel 905-695-1980Fax 905-695-2078
Australia - SydneyTel 61-2-9868-6733China - BeijingTel 86-10-8569-7000China - ChengduTel 86-28-8665-5511China - ChongqingTel 86-23-8980-9588China - DongguanTel 86-769-8702-9880China - GuangzhouTel 86-20-8755-8029China - HangzhouTel 86-571-8792-8115China - Hong Kong SARTel 852-2943-5100China - NanjingTel 86-25-8473-2460China - QingdaoTel 86-532-8502-7355China - ShanghaiTel 86-21-3326-8000China - ShenyangTel 86-24-2334-2829China - ShenzhenTel 86-755-8864-2200China - SuzhouTel 86-186-6233-1526China - WuhanTel 86-27-5980-5300China - XianTel 86-29-8833-7252China - XiamenTel 86-592-2388138China - ZhuhaiTel 86-756-3210040
India - BangaloreTel 91-80-3090-4444India - New DelhiTel 91-11-4160-8631India - PuneTel 91-20-4121-0141Japan - OsakaTel 81-6-6152-7160Japan - TokyoTel 81-3-6880- 3770Korea - DaeguTel 82-53-744-4301Korea - SeoulTel 82-2-554-7200Malaysia - Kuala LumpurTel 60-3-7651-7906Malaysia - PenangTel 60-4-227-8870Philippines - ManilaTel 63-2-634-9065SingaporeTel 65-6334-8870Taiwan - Hsin ChuTel 886-3-577-8366Taiwan - KaohsiungTel 886-7-213-7830Taiwan - TaipeiTel 886-2-2508-8600Thailand - BangkokTel 66-2-694-1351Vietnam - Ho Chi MinhTel 84-28-5448-2100
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copy 2018 Microchip Technology Inc Datasheet Preliminary DS40002018A-page 67
![[CONTENTS]diagramas.diagramasde.com/audio/LPC-LM735X.pdf• ic voltage sheet ... pn508 pin 8 = 6.2v,pin 7 = 5v,pn507 pin 1 = 5v check voltage change](https://img.dokumen.tips/doc/110x75/5adfddfe7f8b9a6e5c8cb31e/contents-ic-voltage-sheet-pn508-pin-8-62vpin-7-5vpn507-pin-1-5v.jpg)
