Upload
others
View
2
Download
0
Embed Size (px)
Citation preview
Evaluates: MAX32655MAX32655 Evaluation Kit
General DescriptionThe MAX32655 evaluation kit (EV kit) provides a platform for evaluation capabilities of the MAX32655 microcon-troller, which is an advanced system-on-chip (SoC). It fea-tures an Arm® Cortex®-M4F CPU for efficient computation of complex functions and algorithms, integrated power management (SIMO), and the newest generation Bluetooth® 5.0 Low Energy (Bluetooth LE), long-range radio for wearable and hearable device applications.
MAX32655 EV Kit Contents MAX32655 EV Kit Containing a MAX32655 with a
Preprogrammed Demo One External Bluetooth Antenna MAX32625PICO Debugger with Cables JTAG Debugger with Ribbon Cable One USB Standard-A to Micro-B Cable One USB Standard-A to Standard-B Cable
Benefits and Features External Bluetooth Antenna with SMA Interface Stereo Audio Codec with Line-In and Line-Out 3.5mm Jacks Digital Microphone 320 x 240 Color TFT Resistive Touch Display with an
SPI Interface 128Mb Quad SPI Flash USB 2.0 Micro-B to Serial UARTs UART0 and LPUART Interface Selectable through
On-Board Jumpers All GPIOs Signals Accessed through 0.1in Headers Access to the Eight Analog Inputs through 0.1in Headers 10-Pin SWD and RV JTAG Connectors Board Power Provided by USB Port On-Board 1.8V and 3.3V LDO Regulators MAX32655 Can be Solely Sourced by the Coin Cell
Battery Individual Power Measurement on All IC Rails
through Jumpers Two General-Purpose LEDs and Two General-
Purpose Pushbutton Switches
319-100585; Rev 2; 1/21
Ordering Information appears at end of data sheet.
Arm and Cortex are registered trademarks of Arm Limited (or its subsidiaries) in the US and/or elsewhere. Bluetooth is a trademark of Bluetooth SIG, Inc.
MAX32655 EV Kit Board
Click here to ask about the production status of specific part numbers.
Maxim Integrated 2www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
Quick StartRequired Equipment
MAX32655 EV Kit Containing a MAX32655 with a Preprogrammed Demo
One USB Standard-A to Micro-B Cable
ProcedureThe EV kit is fully assembled and tested. Follow the steps below to verify board operation:1) While observing safe ESD practices, carefully remove
the MAX32655 EV kit board out of its packaging. Inspect the board to ensure that no damage occurred during shipment. Jumpers/shunts are preinstalled prior to testing and packaging.
2) Power up the board by plugging in the provided USB cable to connector CN1. Verify that the 5V (DS1) blue LED (DS1) and the 3.3V (DS2) and 1.8V (DS2) green LEDs are illuminated.
3) The MAX32655 is preprogrammed with a demo pro-gram. The demo will now initiate and display the Max-im logo upon successful completion.
Detailed Description of HardwarePower Supply The EV kit is powered by +5V, which is made available through VBUS on the USB Micro-B connector CN1. A blue LED (DS1) illuminates when the board is powered. Green LEDs (DS2) and (DS3) illuminate when the 3V3 and 1V8 LDOs are powered, respectively. The MAX32655 itself can be solely sourced by a coin cell battery or on-board 3.3V through the JP8 header.
Current MonitoringTwo pin headers provide convenient current monitor-ing points for VDDIOH (JP10), VDDIO (JP12), VDDA (JP14), VCOREA (JP16), VCOREB (JP18), and BLE_LDO (JP19).
Low-Power Mode Current Measurements PrecautionWhen attempting to measure the current consumption modes, assure that R36 has been removed since it draws extra current.
Clocking The MAX32655 clocking is provided by an external 32MHz crystal (Y1) and an external 32.768kHz crystal (Y2) for RTC operation.
Bluetooth 5.0 Interface An SMA connector is provided to attach an external Bluetooth 2.4GHz antenna.
Color TFT Display The display provided is a 3.5in, 320 x 240 color TFT with an integrated TFT controller from Crystalfontz®. The resistive touch controller is a separate IC that is con-nected to the SPI bus of the MAX32655.
Audio Stereo Codec Interface The MAX32655 interfaces to the MAX9867 external audio codec IC through its I2C and I2S ports. Line-in and line-out 3.5mm jacks are provided for audio access.
Digital Microphone The MAX9867 codec interfaces to a miniature digital microphone embedded on an IC.
MemoryA 128Mb QSPI flash is provided as optional external memory.
JTAG Serial Wire Debug (SWD) Support SWD debug can be accessed through the Cortex 10-pin connector, JH3. Logic levels are fixed to VDDIO (1.8V).
RISC-V JTAG Test PortRISC-V debug can be accessed through a Cortex 10-pin connector, JH4. Logic levels are fixed to VDDIO (1.8V).
UART InterfaceThe EV kit provides a USB-to-UART bridge chip, FTDI FT230X. This bridge eliminates the requirement for a physical RS-232 COM port. Instead, the IC’s UART access is through the USB Micro-B connector, CN1. The USB-to-UART bridge can be connected to the IC’s UART 0 or LPUART with jumpers JP4 (Rx) and JP5 (Tx). Virtual COM port drivers and guides for installing Windows® driv-ers are available at the FTDI chip website.
GPIO and Alternate Function HeadersThe GPIO and alternate function signals from the MAX32655 can be accessed through the 0.1in spaced headers JH6, JH7, JH8, JH9, and JH13.
Crystalfontz is a registered trademark of Crystalfontz America, Inc. Windows is a registered trademark of Microsoft Corporation.
Maxim Integrated 3www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
Analog HeadersThe eight analog outputs can be accessed through the 0.1in spaced headers JH11 and JH12.
I2C PullupsI2C0 and I2C1 ports can independently pulled up to 1V8 or 3V3 through JP21 (I2C0) and JP22 (I2C1).
Reset PushbuttonThe IC can be reset by pushbutton SW2.
Indicator LEDs General-purpose indicator LED D1 (red) is connected to GPIO P0.24, and LED D2 (green) is connected to GPIO P0.25.
GPIO Pushbutton SwitchesThe two general-purpose pushbuttons (SW3 and SW4) are connected to GPIO P0.18 and P1.19, respectively. If the pushbutton is pressed, the attached port pin is pulled low.
Table 1. MAX32655 EV Kit Jumper Settings
*Default setting
JUMPER SIGNAL SETTINGS DESCRIPTION
JP1 VREGIOpen Disconnects power from VREGI
Close* Connects power to VREGI
JP2 P0_24Open Disconnects red LED D1 from P0_24
Close* Connects red LED D1 to P0_24
JP3 P0_25Open Disconnects green LED D2 from P0_25
Close* Connects green LED D2 to P0_25
JP4P2_6 2-1 Connects the USB to serial UART to GPIO P2_6 (LPUART_RX)
P0_0 2-3* Connects the USB to serial UART to GPIO P0_0 (UART0_RX)
JP5P2_7 2-1 Connects the USB to serial UART to GPIO P2_7 (LPUART_TX)
P0_1 2-3* Connects the USB to serial UART to GPIO P0_1 (UART0_TX)
JP6 P0_2Open Disconnects the USB to serial UART to GPIO P0_2 (UART0_CTS)
Close* Connects the USB to serial UART to GPIO P0_2 (UART0_CTS)
JP7 P0_3Open Disconnects the USB to serial UART to GPIO P0_3 (UART0_RTS)
Close* Connects the USB to serial UART to GPIO P0_3 (UART0_RTS)
JP8 VREGI2-1 Connects the coin cell battery to VREGI
2-3* Connects the 3V3 to VREGI
JP9 VDDIOH_EN2-1* Connects VREGI to VDDIOH_EN jumper JP10
2-3 Connects 3V3 to VDDIOH_EN jumper JP10
JP10 VDDIOHOpen Disconnects power from VDDIOH
Close* Connects power to VDDIOH
JP11 VDDIO_EN2-1* Connects VREGO_A to VDDIO_EN jumper JP12
2-3 Connects 1V8 to VDDIO_EN jumper JP12
JP12 VDDIOOpen Disconnects power from VDDIO
Close* Connects power to VDDIO
JP13 VDDA_EN2-1* Connects VREGO_A to VDDA_EN jumper JP14
2-3 Connects 1V8 to VDDA_EN jumper JP14
Maxim Integrated 4www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
Table 1. MAX32655 EV Kit Jumper Settings (continued)
*Default setting
#Denotes RoHS compliant.
JUMPER SIGNAL SETTINGS DESCRIPTION
JP14 VDDAOpen Disconnects power from VDDA
Close* Connects power to VDDA
JP15 VCOREA_EN2-1* Connects VREGO_C to VCOREA_EN jumper JP16
2-3 Connects 1V1 to VCOREA_EN jumper JP16
JP16 VCOREAOpen Disconnects power from VCOREA
Close* Connects power to VCOREA
JP17 VCOREB_EN2-1* Connects VREGO_B to VCOREB_EN jumper JP18
2-3 Connects 1V1 to VCOREB_EN jumper JP18
JP18 VCOREBOpen Disconnects power from VCOREB
Close* Connects power to VCOREB
JP19 BLE_LDOOpen Disconnects power from BLE_LDO
Close* Connects power to BLE_LDO
JP20 VREF2-1* Connects VDDIO to VREF
2-3 Connects VDDIOH to VREF
JP21 I2C0_PU2-1* Connects VDDIO to I2C0_PU
2-3 Connects VDDIOH to I2C0_PU
JP22 I2C1_PU2-1* Connects VDDIO to I2C1_PU
2-3 Connects VDDIOH to I2C1_PU
JP23 BOARD RESETOpen Disconnects RV JTAG NRESET from the BOARD RESET circuitry
Close* Connects RV JTAG NRESET from the BOARD RESET circuitry
PART TYPE
MAX32655EVKIT# EV Kit
Ordering Information
Maxim Integrated 5www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
QTY PART REFERENCE VALUE BOM_DESCRIPTION MANUFACTURER_PN MANUFACTURER1 BATT1 S8421-45R BATTERY HOLDER COIN 20MM SMD S8421-45R S8421-45R1 BATT2 CR2032 BATTERY LITHIUM COIN 3V 20MM CR2032 Panasonic - BSG
9 C1 C9 C10 C11 C12 C13 C14 C17 C19 1µF CAP CER 1UF 16V 10% X5R 0402 GRT155R61C105KE01D Murata Electronics
1 C2 47µF CAP CER 47µF 6.3V 20% X5R 0805 C2012X5R0J476M125AC TDK Corporation
10 C3 C18 C20 C23 C24 C25 C34 C35 C36 C41 100nF CAP CER 0.1µF 16V 10% X7R 0402 GRM155R71C104KA88D Murata Electronics
1 C4 3.3nF CAP CER 3300PF 16V 10% X7R 0402 GRM15XR71C332KA86D Murata Electronics4 C5 C6 C7 C8 22µF CAP CER 22µF 6.3V 20% X5R 0603 C1608X5R0J226M080AC TDK Corporation2 C15 C16 16pF CAP CER 16PF 50V 5% C0G/NP0 0402 GRM1555C1H160JA01D Murata Electronics
15C21 C22 C26 C27 C28
C29 C30 C31 C32 C33 C37 C38 C39 C40 C45
DNI DNI
3 C42 C43 C71 1µF CAP CER 1µF 6.3V 10% X5R 0402 JMK105BJ105KV-F Taiyo Yuden
7 C44 C46 C48 C49 C50 C52 C53 1µF CAP CER 1µF 16V 10% X7R 0603 GCM188R71C105KA64D Murata
1 C47 2.2µF CAP CER 2.2µF 10V 10% X5R 0603 C0603C225K8PACTU Kemet
7 C51 C54 C57 C58 C61 C68 C70 100nF CAP CER 0.1µF 10V 10% X5R 0402 GRM155R61A104KA01D Murata
2 C55 C56 18pF CAP CER 18PF 50V 5% NP0 0402 GRM1555C1H180JA01D Murata2 C59 C60 47pF CAP CER 47PF 50V 1% NP0 0402 C1005C0G1H470F050BA TDK Corporation1 C62 4.7µF CAP CER 4.7µF 10V 10% X5R 0603 C0603C475K8PACTU Kemet1 C63 10nF CAP CER 10000PF 25V 10% X7R 0603 CL10B103KA8NNNC Samsung 1 C64 100nF CAP CER 0.1µF 16V 10% X7R 0603 C0603C104K4RACTU Kemet1 C65 10nF CAP CER 10000PF 16V 10% X7R 0402 GRM155R71C103KA01D Murata Electronics2 C66 C69 10µF CAP CER 10µF 6.3V 20% X5R 0402 GRJ155R60J106ME11D Murata Electronics1 C67 1µF CAP CER 1µF 35V 10% X5R 0603 GMK107BJ105KA-T Taiyo Yuden1 CN1 MICRO USB B R/A CONN RCPT 5POS MICRO USB B R/A 47346-0001 Molex1 D1 RED LED 660NM RED WTR CLR 1206 SMD SML-LX1206SRC-TR Lumex Opto3 D2 DS2 DS3 GRN LED 565NM WTR CLR GREEN 1206 SMD SML-LX1206GC-TR Lumex Opto1 DS1 BLUE LED 469NM BLUE DIFF 1206 SMD HSMR-C150 Avago Technologies1 DSP1 42P (2x21) CONN RCPT 42P 0.100" SMD HLE-121-02-f-dv Samtec Inc.1 DSP2 CFAF320240F-035T-TS-CB 320x240 Color TFT with Carrier Board CFAF320240F-035T-TS-CB Crystalfontz
8 H1 H2 H3 H4 H5 H6 H7 H8 DNI DNI MTG 125DRL 300PAD
1 J1 SMA CONN SMA JACK STR 50 Ω PCB 5-1814832-1 TE Connectivity2 J2 J3 SJ-3523-SMT-TR CONN JACK STEREO 3.5MM SMD R/A SJ-3523-SMT-TR CUI Inc1 JH1 10P 2x5 Tall CONN HEADER VERT 10POS 2.54MM TSW-105-15-G-D Samtec Inc.2 JH3 JH4 10P CORTEX DEBUG IDC BOX HEADER 0.050 10 POS SMD 3220-10-0300-00 CNC Tech2 JH6 JH7 18P 2x9 CONN HEADER .100 DUAL STR 18POS PEC09DAAN Sullins1 JH8 12P 2x6 CONN HEADER .100 DUAL STR 12POS PEC06DAAN Sullins
MAX32655 EV Kit Bill of Materials
Maxim Integrated 6www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
QTY PART REFERENCE VALUE BOM_DESCRIPTION MANUFACTURER_PN MANUFACTURER
12JH9 JP4 JP5 JP8 JP9 JP11 JP13 JP15 JP17
JP20 JP21 JP223P 3x1 CONN HEADER .100 SINGL STR 3POS PEC03SAAN Sullins
2 JH11 JH12 8P 2x4 CONN HEADER .100 DUAL STR 8POS PEC04DAAN Sullins1 JH13 10P 2x5 CONN HEADER .100 DUAL STR 10POS PEC05DAAN Sullins
12JP1 JP2 JP3 JP6 JP7 JP10 JP12 JP14 JP16
JP18 JP19 JP23JUMPER CONN HEADER .100 SINGL STR 2POS PEC02SAAN Sullins
1 L1 2.2µH FIXED IND 2.2µH 1A 150 MΩ SMD 0805 MLP2012H2R2MT0S1 TDK Corporation
1 L2 HZ1206C202R-10 FERRITE CHIP SIGNAL 2000Ω SMD HZ1206C202R-10 Laird-Signal Integrity1 L3 BLM21PG221SN1D FERRITE CHIP 220Ω 0805 BLM21PG221SN1D Murata Electronics1 PCB1 PCB1 Q1 BSS806N MOSFET N-CH 20V 2.3A SOT23 BSS806N H6327 Infineon Technologies4 R1 R2 R3 R4 2K RES 2KΩ 1/10W 1% 0603 SMD ERJ-3EKF2001V Panasonic
8 R5 R6 R9 R11 R13 R15 R17 R19 0 RES 0.0Ω 1/10W JUMP 0402 SMD ERJ-2GE0R00X Panasonic
4 R7 R8 R35 33.2 RES SMD 33.2Ω 1% 1/10W 0402 ERJ-2RKF33R2X Panasonic1 R36 33.2 RES SMD 33.2Ω 1% 1/10W 0402 ERJ-2RKF33R2K Panasonic1 R14 27K RES 27KΩ 1/10W 1% 0402 SMD ERJ-2RKF2702X Panasonic2 R21 R22 100 RES SMD 100Ω 1% 1/10W 0603 RC0603FR-07100RL Yageo1 R23 470 RES 470Ω 1/10W 1% 0603 SMD ERJ-3EKF4700V Panasonic3 R24 R47 R48 332 RES 332Ω 1/10W 1% 0603 SMD ERJ-3EKF3320V Panasonic4 R25 R29 R31 R32 10K RES SMD 10KΩ 1% 1/16W 0402 RC0402FR-0710KL Yageo1 R26 10K RES SMD 10KΩ 1% 1/16W 0402 RC0402FR-0710KL Yageo4 R10, R27 R30 R38 0 RES SMD 0Ω JUMPER 1/10W 0603 RC0603JR-070RL Yageo1 R28 0 RES SMD 0Ω JUMPER 1/10W 0603 RC0603JR-070RL Yageo1 R33 150 RES SMD 150Ω 1% 1/10W 0402 ERJ-2RKF1500X Panasonic1 R34 1M RES SMD 1MΩ 1% 1/10W 0402 ERJ-2RKF1004X Panasonic1 R37 33.2 RES SMD 33.2Ω 1% 1/10W 0402 ERJ-2RKF33R2X Panasonic4 R39 R43 R44 R46 10K RES 10KΩ 1/10W 1% 0603 SMD ERJ-3EKF1002V Panasonic2 R40 R41 27 RES 27 Ω 1/10W 1% 0603 SMD ERJ-3EKF27R0V Panasonic1 R42 2.7K RES 2.7KΩ 1/10W 1% 0603 SMD ERJ-3EKF2701V Panasonic1 R45 1M RES SMD 1MΩ 5% 1/8W 0805 ERJ-6GEYJ105V Panasonic1 R49 150K RES 150KΩ 1/10W 1% 0603 SMD ERJ-3EKF1503V Panasonic1 SW1 B3S-1002 BY OMZ SWITCH TACTILE SPST-NO 0.05A 24V B3S-1002 BY OMZ Omron Electronics3 SW2 SW3 SW4 B3S-1000P SWITCH TACTILE SPST-NO 0.05A 24V B3S-1000P Omron Electronics1 SW5 SPDT 3A SWITCH TOGGLE SPDT 3A 120V ET01MD1AGE C&K Components2 TP1 TP3 RED TEST POINT PC MULTI PURPOSE RED 5010 Keystone Electronics1 TP2 WHT TEST POINT PC MULTI PURPOSE WHT 5012 Keystone Electronics
MAX32655 EV Kit Bill of Materials (continued)
Maxim Integrated 7www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
QTY PART REFERENCE VALUE BOM_DESCRIPTION MANUFACTURER_PN MANUFACTURER3 TP4 TP6 TP7 BLK TEST POINT PC MULTI PURPOSE BLK 5011 Keystone Electronics2 TP5 TP8 1P CONN HEADER .100 SINGL STR 1POS PEC01SAAN Sullins1 TP9 DNI DNI 28 DRILL 50 PAD1 U1 MAX32655GXG+ MAX32655GXG+ 81P BGA MAX32655GXG+ Maxim Integrated1 U2 W25Q128FVSIG IC FLASH 128MBIT 104MHZ 8SOIC W25Q128FVSIG Winbond Electronics1 U3 MAX6816EUS+T IC INTFACE SPECIALIZED SOT143-4 MAX6816EUS+TCT-ND Maxim Integrated1 U4 NL27WZ07DFT2G IC BUFFER NON-INVERT 5.5V SC88 NL27WZ07DFT2G ON Semiconductor1 U5 TSC2046IPWR IC TOUCH SCREEN CTRLR LV 16TSSOP TSC2046IPWR TI1 U6 MAX9867ETJ+T IC STEREO AUD CODEC LP 32TQFN MAX9867ETJ+T Maxim Integrated1 U7 SN74LVC1GU04DCKT IC SINGLE INVERTER GATE SC70-5 SN74LVC1GU04DCKT Texas Instruments1 U8 NC7WZ17P6X IC BUFF DL SCHMT TRIG UHS SC706 NC7WZ17P6X Fairchild Semiconductor1 U9 SPH0641LM4H-1 SILICON DIGITAL MICROPHONE SPH0641LM4H-1 Knowles1 U10 FT230XS-R IC USB SERIAL BASIC UART 16SSOP FT230XS-R FTDI1 U11 MAX3207EAUT+T ESD PROT DIFF SOT23-6 MAX3207EAUT+T Maxim Integrated1 U12 MAX1806EUA33+ IC REG LDO 3.3V/ADJ 0.5A 8UMAX MAX1806EUA33+ Maxim Integrated1 U13 MAX1806EUA18+ Low Dropout Linear Regulator MAX1806EUA18+ Maxim Integrated
1 XU1 MAX32655GXG+ 81P BGA SCKT MAX32655GXG+ 81P BGA SOCKET C19790 Ironwood Electronics, Inc.
1 Y1 32 MHZ CRYSTAL 32.00 MHZ 12PF SMD FA-20H 32.0000MF12Y-W3 EPSON1 Y2 32.768kHz CRYSTAL 32.768KHZ 6.0PF SMD ABS07-32.768KHZ-6-T Abracon Corp1 Y3 12.288Mhz CRYSTAL 12.2880MHZ 18PF SMD ABM3-12.288MHZ-B4Y-T Abracon Corporation
MAX32655 EV Kit Bill of Materials (continued)
Maxim Integrated 8www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
MAX32655 EV Kit Schematic Diagrams5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
VDDI
O
LXA
VDDA
LXB
VBST
VDDI
OH
3.3V
LDO
1.8V
LD
O
3V3
1V8
VREG
O_A
VREG
O_D
VREG
O_A
VREG
O_B
VREG
O_C
VREG
O_D
VREG
O_A
VREG
O_B
VREG
O_C
VREG
O_D
VCO
REA
RV JT
AG
ANAL
OG
FR
ON
T EN
D
AIN
0AI
N1
AIN
2AI
N3
Opt
iona
l Filt
erAN
ALO
GAI
N4
AIN
5AI
N6
AIN
7
32.7
68 k
Hz
32KI
N
32 M
Hz
HFXI
NH
FXO
UT
USB
MIC
RO B
RX S
EL
FT23
0X
TX
TX S
ELRX
ESD
TVS
VBU
S
VCC
RTS_
N
CTS_
N
USB
MAX
3207
USB
-U
ARTS
VCCI
O
USB
to S
eria
l
RSTN
RESE
TCO
RTEX
VTXO
UT
VRXO
UT
I2S
I2S_
SDI
I2S_
SCK
3V3
3V3
LED
0
RSTN
LED1
UAR
T0_C
TS_N
UAR
T0_R
TS_N
P1.1
8
P1.1
9
32KO
UT
UAR
T0_T
X
UAR
T0_R
X
P1.2
4
P1.2
5
UAR
T0/1
I2C1
_SCL
I2C1
_SDA
I2C0
_SCL
I2C0
_SDA
VREF
VREF
I2C1
PU
I2C0
PU
P0.[3
1..1
6]
P1.[9
..0]
P0.[1
5..0
]
PORT
0PO
RT 0
PORT
1-2
BL_E
N
/RES
ET/C
S
SDO
SCL
SDI
Y+ X+ Y- X-
TSC2
046I
PWR
TOU
CH S
CREE
N
CTRL
RS
320
x 24
0 PI
XELS
3.5"
DIA
GO
NAL
CF
AF
32
024
0F
-03
5T
-TS
-CB
CRYS
TALF
ON
TZ T
FT D
ISPL
AY
DIN
DCL
K
D0U
T/C
SBU
SY/P
ENIR
Q
Y+ X+ Y- X-
UAR
T1_T
X
UAR
T1_R
XCT
S0_E
N
RTS0
_EN
OFF
ON
1V1
3V3
1V8
VDD
IOH
SEL
VDDI
O S
EL
VDD
A SE
L
VREG
O_A1V
8
VCO
REA
SEL
VREG
O_C1V
1
VCO
REB
VCO
REB
SEL
VREG
O_B1V
1
BLE
LDO
VREG
I
VREG
I_VB
AT
3V3
VREG
I
VREG
I
RCFI
LTER
3V3
WAK
EUP
DEB
OU
NCE
OD
BU
FFER
WU
EN
3V3
3V3
PORT
3
P2.[7
..0]
P3.[1
..0]
ANT_
CTRL
_0EX
TERN
ALBT
AN
TEN
NA
BOAR
D
MAX
3265
5
EXT
BT
ANTE
NN
ACO
NTR
OL
P1.8
ANT_
CTRL
_1P1
.9AN
T_CT
RL_2
P1.6
RV_T
MS
P1.1
P0_1
1 Q
SPI0
_SS1
P0_7
Q
SPI0
_SCK
P0_5
QSP
I0_M
OSI
P0_1
5
/CE
IO0(
SI)
IO1(
SO)
IO2
IO3
SCK
0
P0_6
QSP
I0_M
ISO
P0_8
QSP
I0_S
DIO
2P0
_9Q
SPI0
_SDI
O3
QSP
I FLA
SH
IS25
LP12
8
P0_1
0 Q
SPI0
_SS2
P0_4
QSP
I0_S
S0
P0_1
3
P0_1
2
P3_1
WAK
EUP
ANT
RV_T
CKP1
.0RV
_TDO
P1.3
RV_T
DIP1
.2
Ope
nDr
ain
3V3
ISO
_RST
N
3V3
3V3
P1_4
P1_2
P1_3
LED0
_EN
LED1
_EN
CORT
EX
SWD
IOP0
.28
SWCL
KP0
.29
SWD
ANT_
CTRL
_3P1
.6
EXT
1V1
POW
ER
VDDI
OH
VDDI
O
For n
ext I
C re
v
I2C1
PU
VDDI
O
I2C0
PU
I2C0
PU
VDDI
OH
VREF
4
I2C
I2C_
SCL
I2C_
SDA
2
Ster
eo A
udio
Co
dec
MAX
9860
1V8
Line
In
Line
Out
MCL
K3333
VDD
IOH
VDD
IOVR
EF
VREF
SEL
DIG
ITAL
MIC
ROPH
ON
E1V
8SP
H064
1LM
4H-1
I2S_
WS
P1_5
I2S_
SDO
MCL
K2P0
_14
I2C1
PU
12.2
88 M
Hz
3V3
P0_2
7
MCL
K1
0
P3_0
0
2
Ma
xim
ca
nno
t a
ssum
e r
esp
onsib
ility f
or
use
of
any c
ircuitry
oth
er
tha
n c
ircuitry
entire
ly e
mb
od
ied
in a
Ma
xim
pro
duct.
No
cir
cuit p
ate
nt
lice
nse
s a
re im
plie
d.
Ma
xim
re
se
rve
s t
he
rig
ht
to c
ha
ng
e t
he
cir
cuitry
and
sp
ecific
atio
ns w
itho
ut
no
tice
at
any t
ime
.
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it
- B
lock D
iagra
m 28
Thurs
day, S
epte
mber
10, 2020
11X
17
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it
- B
lock D
iagra
m 28
Thurs
day, S
epte
mber
10, 2020
11X
17
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it
- B
lock D
iagra
m 28
Thurs
day, S
epte
mber
10, 2020
11X
17
Maxim Integrated 9www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
MAX32655 EV Kit Schematic Diagrams (continued)
5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
Ma
xim
ca
nn
ot
assu
me
re
sp
on
sib
ility
fo
r u
se
of
an
y cir
cu
itry
oth
er
tha
n c
ircu
itry
en
tire
ly e
mb
od
ied
in
a M
axim
pro
du
ct.
No
cir
cu
it p
ate
nt
lice
nse
s a
re im
plie
d.
Ma
xim
re
se
rve
s t
he
rig
ht
to c
ha
ng
e t
he
cir
cu
itry
an
d s
pe
cific
atio
ns w
ith
ou
t n
otice
at
an
y tim
e.
OPE
N D
RAIN
BU
FFER
DEBO
UN
CEAL
L XT
AL R
OU
TIN
G SH
ORT
AN
D DI
RECT
DUT
(SO
CKET
ED)
MIN
TRA
CE/R
OU
TE C
LOSE
DU
T50
OHM
S IM
PEDA
NCE
QSP
I FLA
SHV
RE
GO
_A
VR
EG
O_
B
VR
EG
O_
C
VR
EG
O_
D
VC
OR
EA VC
OR
EB
VD
DA
VD
DIO
VD
DIO
H
BL
E_
LD
O
1V
8
3V
3
3V
3
VD
DIO
_A
UX
VR
EF
VD
DIO
H_
AU
X
VR
EG
I
3V
31
V8
1V
8
1V8
P0_0
P0_1
P0_2
P0_3
P0_4
P0_5
P0_6
P0_7
P0_8
P0_9
P0_10
P0_11
P0_12
P0_13
P0_14
P0_15
P0_16
P0_17
P0_18
P0_19
P0_20
P0_21
P0_22
P0_23
P0_24
P0_25
P0_26
P0_27
P0_28
P0_29
P0_30
P0_31
P1_0
P1_1
P1_2
P1_3
P1_4
P1_5
P1_6
P1_7
P1_8
P1_9
P2_0
P2_1
P0_28
P2_2
P0_29
P2_3
P2_4
P2_5
P2_6
P2_7
P3_0
P3_1
RS
TN
P1_1
P1_0
P1_3
P1_2
P1_8
P1_9
P1_6
P1_7
P0_4
P0_6
P0_9
P0_8
P0_7
P0_5
P3
_1
Title
Siz
eD
ocum
ent
Num
ber
Rev
Date
:S
heet
of
Co
pyri
gh
t ©
2013 -
Maxim
In
teg
rate
d
SC
-00177
B
MA
X3
26
55
EV
Kit
- M
AX
32
65
5
38
Monday,
Septe
mber
14,
2020
11X
17
Title
Siz
eD
ocum
ent
Num
ber
Rev
Date
:S
heet
of
Co
pyri
gh
t ©
2013 -
Maxim
In
teg
rate
d
SC
-00177
B
MA
X3
26
55
EV
Kit
- M
AX
32
65
5
38
Monday,
Septe
mber
14,
2020
11X
17
Title
Siz
eD
ocum
ent
Num
ber
Rev
Date
:S
heet
of
Co
pyri
gh
t ©
2013 -
Maxim
In
teg
rate
d
SC
-00177
B
MA
X3
26
55
EV
Kit
- M
AX
32
65
5
38
Monday,
Septe
mber
14,
2020
11X
17
C10
1uF
0402
C20
100nF
JH
1A
NT
CN
TR
L
AC
0A
C1
AC
2A
C3
11
22
33
44
55
66
77
88
99
10
10
C22
DN
IS
W1
WAK
EUP
P3.1
12
34
C11
1uF
0402
MA
X32655G
XG
+ 8
1P
BG
A S
OC
KE
TX
U1
P0.0
/UA
RT
0A
_R
XF
7
P0.1
/UA
RT
0A
_T
XE
7
P0.2
/TM
R0A
_IO
A/U
AR
T0B
_C
TS
F8
P0.3
/EX
T_C
LK
/TM
R0A
_IO
B/U
AR
T0B
_R
TS
F9
P0.4
/SP
I0_S
S0/T
MR
0B
_IO
AN
G9
P0.5
/SP
I0_M
OS
I/T
MR
0B
_IO
BN
G8
P0.6
/SP
I0_M
ISO
/OW
M_IO
G7
P0.7
/SP
I0_S
CK
/OW
M_P
EH
9
P0.8
/SP
I0_S
DIO
2/T
MR
0B
_IO
AH
8
P0.9
/SP
I0_S
DIO
3/T
MR
0B
_IO
BJ9
P0.1
0/I2C
0_S
CL/S
PI0
_S
S2
H7
P0.1
1/I2C
0_S
DA
/SP
I0_S
S1
J8
P0.1
2/U
AR
T1A
_R
X/T
MR
1B
_IO
AN
G6
P0.1
3/U
AR
T1A
_T
X/T
MR
1B
_IO
BN
H6
P0.1
4/T
MR
1A
_IO
A/U
AR
T1B
_C
TS
J7
P0.1
5/T
MR
1A
_IO
B/U
AR
T1B
_R
TS
J6
P0.1
6/I2C
1_S
CL/P
T2
G5
P0.1
7/I2C
1_S
DA
/PT
3F
5
P0.1
8/P
T0/O
WM
_IO
H5
P0.1
9/P
T1/O
WM
_P
EG
4
P0.2
0/S
PI1
_S
S0/T
MR
1B
_IO
AH
4
P0.2
1/S
PI1
_M
OS
I/T
MR
1B
_IO
BJ3
P0.2
2/S
PI1
_M
ISO
/TM
R1B
_IO
AN
H3
P0.2
3/S
PI1
_S
CK
/TM
R1B
_IO
BN
G3
P0.2
4/S
PI1
_S
DIO
2/T
MR
2B
_IO
AJ2
P0.2
5/S
PI1
_S
DIO
3/T
MR
2B
_IO
BJ1
P0.2
6/T
MR
2A
_IO
A/S
PI1
_S
S1
H1
P0.2
7/T
MR
2A
_IO
B/S
PI1
_S
S2
H2
P0.2
8/S
WD
IOG
1
P0.2
9/S
WC
LK
G2
P0.3
0/I2C
2_S
CL/U
AR
T2B
_C
TS
F1
P0.3
1/I2C
2_S
DA
/UA
RT
2B
_R
TS
F4
P1.0
/UA
RT
2A
_R
X/R
V_T
CK
F3
P1.1
/UA
RT
2A
_T
X/R
V_T
MS
F2
P1.2
/I2S
_S
CK
/RV
_T
DI
D5
P1.3
/I2S
_W
S/R
V_T
DO
E4
P1.4
/I2S
_S
DI/T
MR
3B
_IO
AE
1
P1.5
/I2S
_S
DO
/TM
R3B
_IO
BE
3
P1.6
/TM
R3A
_IO
A/B
LE
_A
NT
_C
TR
L2
E2
P1.7
/TM
R3A
_IO
B/B
LE
_A
NT
_C
TR
L3
D4
P1.8
/BLE
_A
NT
_C
TR
L0/R
XE
V0
D2
P1.9
/BLE
_A
NT
_C
TR
L1/T
XE
V0
D3
P2.0
/AIN
0/A
IN0N
C4
P2.1
/AIN
1/A
IN0P
C5
P2.2
/AIN
2/A
IN1N
D8
P2.3
/AIN
3/A
IN1P
E8
P2.4
/AIN
4/A
IN2N
/LP
TM
R0B
_IO
AC
7
P2.5
/AIN
5/A
IN2P
/LP
TM
R1B
_IO
AD
7
P2.6
/LP
TM
R0_C
LK
/AIN
6/A
IN3N
/LP
UA
RT
B_R
XC
6
P2.7
/LP
TM
R1_C
LK
/AIN
7/A
IN3P
/LP
UA
RT
B_T
XD
6
P3.0
/PD
OW
N/W
AK
EU
PE
5
P3.1
/SQ
WO
UT
/WA
KE
UP
E6
VS
SA
A5
VD
DIO
J5
VD
DIO
HJ4
VS
SP
WR
A9
LX
AB
9
LX
BA
8
VB
ST
B8
VR
EG
O_A
B7
VR
EG
O_B
B6
VR
EG
O_C
A6
VR
EG
IC
9
RS
TN
F6
32K
INA
4
32K
OU
TA
3
VR
EG
IB
4
HF
XIN
C1
HF
XO
UT
C2
VR
XO
UT
B1
VT
XO
UT
B2
VS
S_T
XA
2
VS
S_R
XC
3
AN
TA
1V
SS
E9
VS
SD
1
VC
OR
EA
D9
VC
OR
EB
C8
VD
DA
B5
VR
EG
O_D
A7
BLE
_LD
O_IN
B3
C13
1uF
0402
C14
1uF
0402
JP
23
RV
RS
T E
N
12
C2
47uF
0805
C15
16pF
10P
CO
RT
EX
DE
BU
GJH
3
SWD
VC
C1
GN
D3
GN
D5
KE
Y7
GN
D_D
ET
EC
T9
SW
DIO
/TM
S2
SW
DC
LK
/TC
K4
SW
O/T
DO
6
NC
/TD
I8
NR
ES
ET
10
C19
1uF
Y1
32 M
HZ
1
2
3
4
TP
2W
HT
RS
TN
1C
24
100nF
MA
X32655G
XG
+
U1
81P
CT
BG
A
C16
16pF
W25Q
128F
VS
IGU
2 /CS
1
D0(I
O1)
2
/WP
(IO
2)
3
GN
D4
DI(
IO0)
5C
LK
6/H
OLD
(IO
3)
7V
CC
8
C21
DN
I
C5
22uF
L1
2.2
uH
0805
C7
22uF
C9
1uF
0402
C3
100nF
JP
20
VR
EF
SE
L
VD
DIO
VD
DIO
H
11
22
33
R14
27K
U4
NL27W
Z07D
FT
2G
A1
1
VC
C5
Y2
4A
23
Y1
6
GN
D2
C18
100nF
C12
1uF
0402
C23
100nF
C1
1uF
0402
10P
CO
RT
EX
DE
BU
GJH
4
RV JT
AG
VC
C1
GN
D3
GN
D5
KE
Y7
GN
D_D
ET
EC
T9
SW
DIO
/TM
S2
SW
DC
LK
/TC
K4
SW
O/T
DO
6
NC
/TD
I8
NR
ES
ET
10
Y2
32.7
68kH
z
1 2
J1
SM
A
AN
T1
23
45
C17
1uF
C4
3.3
nF
0402
JP
1VREG
I EN
12
TP
1R
ED
VREG
I
1
C6
22uF
U3
MA
X6816E
US
+T
GN
D1
IN2
OU
T3
VC
C4
C25
100nF
SW
2
RESE
T
12
34
C8
22uF
UA
RT
0_R
XU
AR
T0_T
XU
AR
T0_C
TS
UA
RT
0_R
TS
QS
PI0
_S
S0
QS
PI0
_M
OS
IQ
SP
I0_M
ISO
QS
PI0
_S
CK
QS
PI0
_S
DIO
2Q
SP
I0_S
DIO
3I2
C0_S
CL
I2C
0_S
DA
TS
_B
US
YT
S_P
EN
IRQ
_N
MC
LK
2D
ISP
_R
S_D
CI2
C1_S
CL
I2C
1_S
DA
QS
PI1
_S
S0
QS
PI1
_M
OS
IQ
SP
I1_M
ISO
QS
PI1
_S
CK
QS
PI1
_S
S1
DIS
P_B
L_E
N
SW
DIO
SW
DC
LK
I2C
2_S
CL
I2C
2_S
DA
RV
_T
CK
RV
_T
MS
I2S
_S
CK
I2S
_W
SI2
S_S
DI
I2S
_S
DO
AC
2A
C3
AC
0A
C1
AIN
0A
IN1
SW
DIO
AIN
2
SW
DC
LK
AIN
3A
IN4
AIN
5LP
UA
RT
_R
X/A
IN6
LP
UA
RT
_T
X/A
IN7
WA
KE
UP
AN
T
QS
PI0
_S
S0
QS
PI0
_M
ISO
QS
PI0
_S
DIO
3Q
SP
I0_S
DIO
2Q
SP
I0_S
CK
QS
PI0
_M
OS
I
WA
KE
UP
RS
TN
Maxim Integrated 10www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
MAX32655 EV Kit Schematic Diagrams (continued)5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
Ma
xim
ca
nno
t a
ssum
e r
esp
onsib
ility f
or
use
of
any c
ircuitry
oth
er
tha
n c
ircuitry
entire
ly e
mb
od
ied
in a
Ma
xim
pro
duct.
No
cir
cuit p
ate
nt
lice
nse
s a
re im
plie
d.
Ma
xim
re
se
rve
s t
he
rig
ht
to c
ha
ng
e t
he
cir
cuitry
and
sp
ecific
atio
ns w
itho
ut
no
tice
at
any t
ime
.
GE
NE
RA
L P
UR
PO
SE
PB
SW
ITC
HE
SG
EN
ER
AL
PU
RP
OS
E L
ED
s
GP
IO H
EA
DE
RS
ANAL
OG
4-7
ANAL
OG
0-3
3V
33V
3
VD
DIO
_A
UX
VD
DIO
H_
AU
X
I2C
0_P
U
I2C
1_P
UI2
C1_P
U
VD
DIO
_A
UX
I2C
1_P
U
VD
DIO
H_
AU
X
I2C
0_P
UI2
C0_P
U
P0_24
P0_18
P0_25
P0_19
P0_16
P0_24
P0_17
P0_25
P0_18
P0_26
P0_19
P0_27
P0_20
P0_28
P0_21
P0_29
P0_22
P0_30
P0_23
P0_31
P0_0
P0_8
P0_9
P0_10
P0_11
P0_12
P0_13
P0_14
P0_15
P0_1
P0_2
P0_3
P0_4
P0_5
P0_6
P0_7
P2_0
P2_1
P2_2
P2_3
P2_4
P2_5
P2_6
P2_7
P3_1
P3_0
P2_0
P2_4
P2_1
P2_2
P2_3
P2_5
P2_6
P2_7
P1_0
P1_1
P1_2
P1_3
P1_4
P1_5
P1_6
P1_7
P1_8
P1_9
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it
- G
PIO
, S
witches,
LE
Ds &
Analo
g
48
Wednesday, S
epte
mber
09, 2020
11X
17
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it
- G
PIO
, S
witches,
LE
Ds &
Analo
g
48
Wednesday, S
epte
mber
09, 2020
11X
17
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it
- G
PIO
, S
witches,
LE
Ds &
Analo
g
48
Wednesday, S
epte
mber
09, 2020
11X
17
JH
9
PO
RT
3
11
22
33
R3
2K
JP
21
I2C
0 P
U
VD
DIO
VD
DIO
H
11
22
33
R5
0
JP
2
LE
D0_E
N
12
R6
0
R4
2K
R9
0
R21
100
D2
GR
N
P0_25
R11
0
R13
0
C26
DN
I
R1
2K
R15
0
D1
RE
D
P0_24
JH
7GP
IO
PO
RT
0
11
22
33
44
55
66
77
88
99
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
R17
0
C29
DN
I
JH
13
GP
IO
PO
RT
2
11
22
33
44
55
66
77
88
99
10
10
R19
0
R2
2K
JH
11
11
22
33
44
55
66
77
88
C27
DN
I
C30
DN
I
R22
100
JP
3
LE
D1_E
N
12
C28
DN
I
C32
DN
I
JH
6GP
IO
PO
RT
0
11
22
33
44
55
66
77
88
99
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
R24
332
JH
8
GP
IO
PO
RT
1
11
22
33
44
55
66
77
88
99
10
10
11
11
12
12
C31
DN
I
C33
DN
I
JP
22
I2C
1 P
U
VD
DIO
VD
DIO
H
11
22
33
JH
12
11
22
33
44
55
66
77
88
R23
470
SW
3
B3S
-1000P
P0_18
12
34
SW
4
B3S
-1000P
P0_19
12
34
AIN
0
AIN
1
AIN
2
AIN
3
AIN
4
AIN
5
AIN
6
AIN
7
Maxim Integrated 11www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
MAX32655 EV Kit Schematic Diagrams (continued)5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
Ma
xim
ca
nno
t a
ssum
e r
esp
onsib
ility f
or
use
of
any c
ircuitry
oth
er
tha
n c
ircuitry
entire
ly e
mb
od
ied
in a
Ma
xim
pro
duct.
No
cir
cuit p
ate
nt
lice
nse
s a
re im
plie
d.
Ma
xim
re
se
rve
s t
he
rig
ht
to c
ha
ng
e t
he
cir
cuitry
and
sp
ecific
atio
ns w
itho
ut
no
tice
at
any t
ime
.
LC
D S
UP
PO
RT
BU
MP
ER
S
R30
R30
TOU
CH S
CREE
N C
ON
TRO
LLER
R26,
R28
3 - W
IRE
SPI
(DEF
AULT
)
TFT
DISP
LAY
4 - W
IRE
SPI
INST
ALL
OM
ITTF
T SP
I IN
TERF
ACE
R26,
R28
3V
33
V3
3V
3
3V
3
3V
3
3V
3
P0_20
P0_22
P0_23
P0_15
P0_21
P0_23
P0_26
P0_21
P0_12
P0_22
P0_13
P3_0
P0_27
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it -
Dis
pla
y
58
Wednesday, S
epte
mber
09, 2020
11X
17
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it -
Dis
pla
y
58
Wednesday, S
epte
mber
09, 2020
11X
17
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it -
Dis
pla
y
58
Wednesday, S
epte
mber
09, 2020
11X
17
C41
100nF
R28
0D
NI
U5
TS
C2046IP
WR
+V
CC
1X
+2
Y+
3
X-
4
Y-
5
GN
D6
VB
AT
7
AU
X8
VR
EF
9
IOV
DD
10
PE
NIR
Q11
DO
UT
12
BU
SY
13
DIN
14
CS
15
DC
LK
16
R26
10K
DN
I
C39
DN
I
C37
DN
I
DS
P1
42P
(2x21)
DSPA
1DS
PA2
VD
D1
VS
S2
BL_E
N3
/RE
SE
T4
/RD
5
/CS
6
SD
O7
SC
L8
RS
9
SD
I10
/WR
11
PS
312
PS
213
PS
114
PS
015
DB
17
16
DB
16
17
DB
15
18
DB
14
19
DB
13
20
DB
12
21
DB
11
22
DB
10
23
DB
09
24
DB
08
25
DB
07
26
DB
06
27
DB
05
28
DB
04
29
DB
03
30
DB
02
31
DB
01
32
DB
00
33
D_E
N34
HS
YN
C35
VS
YN
C36
DC
LK
37
Y+
38
X+
39
Y-
40
X-
41
NC
42
R29
10K
C35
100nF
R10
0
R25
10K
C40
DN
I
42P CON
DS
P2
CF
AF
320240F
-035T
-TS
-CB
C36
100nF
C38
DN
I
R27
0
C34
100nF
R30
0
QS
PI1
_S
S0
QS
PI1
_M
ISO
QS
PI1
_S
CK
DIS
P_R
S_D
CQ
SP
I1_M
OS
I
TF
T_Y
+T
FT
_X
+T
FT
_Y
-T
FT
_X
-
QS
PI1
_S
CK
QS
PI1
_S
S1
QS
PI1
_M
OS
IT
S_B
US
YQ
SP
I1_M
ISO
TS
_P
EN
IRQ
_N
DIS
P_B
L_E
N
Maxim Integrated 12www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
MAX32655 EV Kit Schematic Diagrams (continued)5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
Ma
xim
ca
nno
t a
ssum
e r
esp
onsib
ility f
or
use
of
any c
ircuitry
oth
er
tha
n c
ircuitry
entire
ly e
mb
od
ied
in a
Ma
xim
pro
duct.
No
cir
cuit p
ate
nt
lice
nse
s a
re im
plie
d.
Ma
xim
re
se
rve
s t
he
rig
ht
to c
ha
ng
e t
he
cir
cuitry
and
sp
ecific
atio
ns w
itho
ut
no
tice
at
any t
ime
.
AU
DIO
CO
DE
C
Rig
ht
ch
an
nel
Left
ch
an
nel
1V
8
1V
8
1V
8
1V
8
1V
8
1V
8
1V
81V
8
1V
8
1V
8
P0_30
P0_31
P1_4
P1_5
P1_3
P1_2
P0_14
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it
- A
udio
68
Tuesday, January
19, 2021
11X
17
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it
- A
udio
68
Tuesday, January
19, 2021
11X
17
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it
- A
udio
68
Tuesday, January
19, 2021
11X
17
C56
18pF
C53
1uF
R36
33.2
DN
I
MA
X9867E
TJ+
T
U6
DG
ND
1
SC
L2
SD
A3
IRQ
4
AV
DD
5
RE
F6
PR
EG
7
RE
G8
AG
ND
9
MIC
BIA
S10
MIC
LN
/DIG
MIC
CLK
11
MIC
LP
/DIG
MIC
DA
TA
12
MIC
RP
13
MIC
RN
14
LIN
L15
LIN
R16
JA
CK
SN
S/A
UX
17
PG
ND
18
RO
UT
P19
RO
UT
N20
LO
UT
N21
LO
UT
P22
PV
DD
23
N.C
._24
24
N.C
._25
25
DV
DD
IO26
SD
OU
T27
SD
IN28
LR
CLK
29
BC
LK
30
MC
LK
31
DV
DD
32
EP
33
J3
SJ-3
523-S
MT
-TR
HD
_P
HO
NE
12 3
C51
100nF
R38
0
R37
33.2
DN
I
C57
100nFC48
1uF
R31
10K A1
GND
A2
Y2
VCC
Y1
U8
NC
7W
Z17P
6X
1 2 3456
C50
1uF
U7
SN
74LV
C1G
U04D
CK
T
NC
1
A2
GN
D3
Y4
VC
C5
TP
9
DN
I
1
C44
1uF
R32
10K
C42
1uF
U9
SP
H0641LM
4H
-1
DIG
ITA
L M
IC
VD
D5
CLO
CK
4
DA
TA
1
GN
D3
SE
LE
CT
2
R34
1M
R8
33.2
C55
18pF
R33
150
Y3
12.2
88M
hz
12
C54
100nF
C46
1uF
C47 2.2
uF
C45
DN
I
C49 1uFR
733.2
C52
1uF
J2
SJ-3
523-S
MT
-TR
LIN
E_IN
12 3
R35
33.2
C43
1uF
I2S
_S
DI
I2S
_S
DO
I2S
_W
S
I2S
_S
CK
MIC
_C
LK
MIC
_D
AT
A
I2C
2_S
CL
I2C
2_S
DA
MC
LK
2
MC
LK
1
MIC
_C
LK
MIC
_D
AT
A
Maxim Integrated 13www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
MAX32655 EV Kit Schematic Diagrams (continued)5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
Ma
xim
ca
nno
t a
ssum
e r
esp
onsib
ility f
or
use
of
any c
ircuitry
oth
er
tha
n c
ircuitry
entire
ly e
mb
od
ied
in a
Ma
xim
pro
duct.
No
cir
cuit p
ate
nt
lice
nse
s a
re im
plie
d.
Ma
xim
re
se
rve
s t
he
rig
ht
to c
ha
ng
e t
he
cir
cuitry
and
sp
ecific
atio
ns w
itho
ut
no
tice
at
any t
ime
.
Com
pone
nts i
nsid
e da
shed
box
shou
ld b
e pl
aced
as c
lose
as
pos
sibl
e to
its U
SB c
onne
ctor
.
90
oh
m d
iffe
ren
tia
l tr
ac
es
US
B S
hie
ld g
rou
nd
EM
I/E
SD
is
ola
tio
n
VR
EF
VR
EF
VR
EF
VR
EF
VR
EF
VB
US
P2_7
P2_6
P0_1
P0_0
P0_2
P0_3
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it -
US
B &
Serial
78
Wednesday, S
epte
mber
09, 2020
11X
17
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it -
US
B &
Serial
78
Wednesday, S
epte
mber
09, 2020
11X
17
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it -
US
B &
Serial
78
Wednesday, S
epte
mber
09, 2020
11X
17
JP
5
TX
SE
L
LP
TX
0
11
22
33
R40
27
CN
1M
ICR
O U
SB
B R
/A
US
B/P
WR
- U
AR
TS
VB
US
1
DM
2
DP
3
ID4
GN
D5
GND_1 6
GND_2 7
GND_3 8
GND_4 9
SW
5
SP
DT
3A
PW
R
213
DS
1
BLU
E
VB
US
R45
1M
C63
10nF
25V
C59
47pF
U11
MA
X3207E
AU
T+
T
IO1
1
GN
D2
NC
33
IO2
4V
CC
5N
C6
6
R44
10K
JP
7
RT
S0 E
N
12
JP
4
RX
SE
L
LP
RX
0
11
22
33
R39
10K
R41
27
JP
6
CT
S0 E
N
12
L3
BLM
21P
G221S
N1D
C60
47pF
R42
2.7
K
L2
HZ
1206C
202R
-10
C58
100nF
C61
100nF
C62
4.7
uF
R46
10K
C64
100nF
U10
FT
230X
S-R
CB
US
015
GN
D5
RT
S2
VC
CIO
3
RX
D4
CT
S6
CB
US
114
VC
C12
RE
SE
T11
3V
3O
UT
10
US
BD
M9
US
BD
P8
CB
US
27
TX
D1
GN
D13
CB
US
316
R43
10K
LP
UA
RT
_R
X
LP
UA
RT
_T
X
UA
RT
0_T
X
UA
RT
0_R
X
US
BD
MU
SB
DP
DM
0D
P0
UA
RT
0_C
TS
UA
RT
0_R
TS
Maxim Integrated 14www.maximintegrated.com
Evaluates: MAX32655MAX32655 Evaluation Kit
MAX32655 EV Kit Schematic Diagrams (continued)5 5
4 4
3 3
2 2
1 1
DD
CC
BB
AA
Ma
xim
ca
nno
t a
ssum
e r
esp
onsib
ility f
or
use
of
any c
ircuitry
oth
er
tha
n c
ircuitry
entire
ly e
mb
od
ied
in a
Ma
xim
pro
duct.
No
cir
cuit p
ate
nt
lice
nse
s a
re im
plie
d.
Ma
xim
re
se
rve
s t
he
rig
ht
to c
ha
ng
e t
he
cir
cuitry
and
sp
ecific
atio
ns w
itho
ut
no
tice
at
any t
ime
.
3.3
V L
DO
1.8
V L
DO
BOM
ON
LY
1V
8
3V
3
3V
3
3V
3
VD
DIO
H
VD
DIO
VR
EG
O_A
1V
8
3V
3
VR
EG
I
VD
DA
VC
OR
EA
VC
OR
EB
VB
US
VR
EG
I
3V
3
VR
EG
O_A
1V
8
VR
EG
O_C
1V
1
VR
EG
O_B
1V
1
1V
1
VD
DIO
H_A
UX
VD
DIO
_A
UX
BLE
_LD
O
VR
EG
O_D
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it
- P
ow
er
88
Wednesday, S
epte
mber
09, 2020
11X
17
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it
- P
ow
er
88
Wednesday, S
epte
mber
09, 2020
11X
17
Title
Siz
eD
ocum
ent N
um
ber
Rev
Date
:S
heet
of
Co
py
rig
ht
© 2
01
3 -
Ma
xim
In
teg
rate
d
SC
-00177
B
MA
X32655 E
V K
it
- P
ow
er
88
Wednesday, S
epte
mber
09, 2020
11X
17
JP
19
BL
E_L
DO
12
U13
MA
X1806E
UA
18+
IN_1
1
IN_2
2
PO
K3
SH
DN
4G
ND
5S
ET
6O
UT
_2
7O
UT
_1
8
EP
9
TP
4
GN
D
1
TP
6
GN
D
1
JP
14
VD
DA
EN
12
JP
17
VC
OR
EB
SE
L
VR
EG
O_B
1V
1
11
22
33
C69
10uF
R49
150K
TP
8
GN
D1
BA
TT
1
S8421-4
5R
+-
DS
3
GR
N
1V
8
JP
15
VC
OR
EA
SE
L
VR
EG
O_C
1V
1
11
22
33
JP
18
VC
OR
EB
EN
12
JP
9
VD
DIO
H S
EL
VR
EG
I
3V
3
11
22
33
JP
13
VD
DA
SE
L
VR
EG
O_A
1V
8
11
22
33
C70
100nF
JP
12
VD
DIO
EN
12
C65
10nF
C66
10uF
C67
1uF
JP
11
VD
DIO
SE
L
VR
EG
O_A
1V
8
11
22
33
G
D S
Q1
BS
S806N
123
JP
8
VR
EG
I S
EL
BA
TT
3V
3
11
22
33
JP
10
VD
DIO
H E
N
12
TP
7
GN
D
1
JP
16
VC
OR
EA
EN
12
BA
TT
2
CR
2032
R48
332
TP
3
RE
D
EX
T 1
V1
1
DS
2
GR
N
3V
3
TP
5
GN
D1
C71
1uF
U12
MA
X1806E
UA
33+
IN_1
1
IN_2
2
PO
K3
SH
DN
4G
ND
5S
ET
6O
UT
_2
7O
UT
_1
8
EP
9C
68
100nF
R47
332
Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. © 2021 Maxim Integrated Products, Inc. 15
Evaluates: MAX32655MAX32655 Evaluation Kit
REVISION NUMBER
REVISION DATE DESCRIPTION PAGES
CHANGED
0 8/20 Initial release —
1 9/20 Updated MAX32655 EV Kit Photo, MAX32655 EV Kit Bill of Materials, MAX32655 EV Kit Schematic Diagrams 1, 5–14
2 1/21 Added Low-Power Mode Current Measurements Precaution section, MAX32655 EV Kit Bill of Materials, MAX32655 EV Kit Schematic Diagrams 2, 6, 8–14
Revision History
For pricing, delivery, and ordering information, please visit Maxim Integrated’s online storefront at https://www.maximintegrated.com/en/storefront/storefront.html.