7400 Series Logic ICs

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Application Note 11 Micrel

2-70 1997

General DescriptionThis application note describes the interface connectionsbetween Micrel PCMCIA Power Controllers and industrystandard logic controllers from Cirrus Logic, Data Book, Intel,and Vadem. Combining one or two Micrel PC Card PowerController s and one of these controllers produces a completePCMCIA-compatible PC Card slot. In most cases, no othercomponents are necessary.This note concentrates on the power control subsystem only.For full details on designing-with and operating the PC Cardlogic controllers, please refer to the respective manufacturer’sliterature. For detailed specifications and additional informa-tion on the MIC2560, MIC2561, MIC2562, and MIC2563please see their datasheets earlier in this section.

OverviewThe MIC2560 is a fully-protected PC Card Power Controllerthat meets all PCMCIA specifications. It provides full controlof both V CC and V PP for one PC Card slot. It features industry-leading ON resistances and is available in different controllogic configurations for “glueless” compatibility with the majorindustry-standard PC Card logic controllers.The MIC2561 is also a fully protected card slot controller,similar to the MIC2560, but has higher ON resistances,enabling its use in price-sensitive applications. It is availablein the same MIC2560 pinout as well as in a smaller packagethat is less than half the size of the MIC2560.The MIC2562 is a new design, providing full functionality froma 3.3V supply. The new MIC2563 is a dual version of the

MIC2562 in a SSOP package.

Application Note 11Interfacing PC Card Power Controllers to Logic

Controllers

This note details the connections between the PCMCIA slot logic controller and Micrel PC Card Power Controllers.

SystemPowerSupply

PCMCIACard SlotController MIC2563

PCMCIACard Slot

A

5V(opt)

12V(opt)

A EN0

A EN1

VPP1

VCC

VPP IN(opt)

VCC5 IN(opt)

VCC3 IN

A VCC5_EN

A VCC3_EN

VPP2

PCMCIACard Slot

VPP1

VCC

VPP2B EN0

B EN1

B VCC5_EN

B VCC3_EN

PCMCIACard Slot

B

3.3V



Application Note 11 Micre

1997 2-71

Cirrus Logic Controllers

Table 1. CL-PD6710 single slot controller and MIC2560-1/MIC2561-1 pin equivalencies.

Table 2. CL-PD6720 dual slot controller and MIC2560-1/MIC2561-1 pin equivalencies.

Table 3. CL-PD6729 dual slot controller and MIC2560-1/MIC2561-1 pin equivalencies.

PC Card logic controllers from Cirrus Logic are compatiblewith Micrel’s “–1” option of PC Card power controllers. Tables1, 2, and 3 show pin connections between three popularCirrus Logic controllers and the MIC2560-1 and MIC2561-1.Figure 1 is a schematic of a typical two slot PC Cardimplementation using the CL-PD6720 and the MIC2560-1.

CL-PD6710 MIC2560-1BWM MIC2561-1BMMIC2561-1BWM MIC2562-1BM

Pin Name Pin # Pin Name Pin # Pin #

VCC_5 6 V CC5_EN 5 1

VCC_3 5 V CC3_EN 6 2

VPP_VCC 3 V PP_VCC 7 3

VPP_PGM 2 V PP_PGM 8 4

CL-PD6720 MIC2560-1BWM MIC2561-1BM MIC2563-1BSM

MIC2561-1BWM MIC2562-1BM

Pin Name Pin # Pin Name Pin # Pin # Pin #

Slot A Slot B Slot A Slot B

VCC_5 5 207 V CC5_EN 5 1 5 19

VCC_3 4 206 V CC3_EN 6 2 6 20

VPP_VCC 2 205 V PP_VCC 7 3 7 21

VPP_PGM 1 204 V PP_PGM 8 4 8 22

CL-PD6729 MIC2560-1BWM MIC2561-1BM MIC2563-1BSM

MIC2561-1BWM MIC2562-1BM

Pin Name Pin # Pin Name Pin # Pin # Pin #Slot A Slot B Slot A Slot B

VCC_5 130 138 V CC5_EN 5 1 5 19

VCC_3 129 136 V CC3_EN 6 2 6 20

VPP_VCC 128 135 V PP_VCC 7 3 7 21

VPP_PGM 127 134 V PP_PGM 8 4 8 22




2-72 1997

Cirrus Logic CL-PD6720 Application Circuit

12

12

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-1BWM

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1 FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-1BWM

VCC

VPP

VCC

VPP

Slot B

Slot A

3.3V 5V 12V

A_VCC_5A_VCC_3

A_VPP_VCCA_VPP_PGM

B_VCC_5B_VCC_3

B_VPP_VCC

B_VPP_PGM

A_SLOT_VCC

B_SLOT_VCC

C i r r u s

L o g

i c C L - P

D 6 7 2 0

Figure 1. A typical two slot PC Card (PCMCIA) implementation using the Cirrus Logic CL-PD6720 and twoMIC2560-1. The lower cost MIC2561-1BWM may be directly substituted for the MIC2560-1 in this circuit. The

MIC2561-1BM will also work: refer to Table 2 for pin connection changes.




1997 2-73

Data Book ControllersMicrel’s option “–2” PC Card power controllers are designedto interface with Data Book logic controllers. The Data Bookdevices have individually programmable power supply con-trol pin polarity, which is determined at power-up. Resistorsare used to force positive polarity for proper interfacing withthe MIC2560-2. Refer to the control logic shown in Table 4 fordetails. When V CC is deselected (OFF), a MIC2560-2 internalclamp actively pulls-down the output, insuring zero volts on

the socket. This clamp has an ON resistance of approxi-mately 1.2k Ω. The Databook DB86184 PCMCIA controllerrequires 100k Ω pull-down resistors from VCCSEL0,VCCSEL1, VPPSEL0, and VPPSEL1 to ground and 100kpull-up resistors from VCCSEL2 and VCCSEL3 to +3.3V (or+5V). MIC2560-2 pin 8 should be connected to ground.While not required, a 0.1 µF capacitor from V CC3 IN to grounprovides decoupling for the current sense amplifier.

12

12

EN1 1

EN0 1

VDD

VCC 3/5VCC EN

GND

76

5

4

3

2

1110

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCCSEL1

VCCSEL2

VPPSEL

FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-2BWM

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCCSEL1

VCCSEL2

VPPSELFLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-2BWM

VCC

VPP

VCC

VPP

Slot B

Slot A

3.3V 5V 12V

VCCSEL0

VCCSEL2VPPSEL0

VCCSEL1VCCSEL3VPPSEL1

VDD S0 1, VDD S1 1

VDD S0 2, VDDS1 2

D a

t a B o o

k D B 8 6 1 8 4

OVERCUR# (opt)100k Ω(x 3)

100k Ω(x 3)

Pin 5 Pin 6 Pin 7 Pins 2 & 14 Pin 13VCCSEL1 VCCSEL2 VPPSEL VCC OUT VPP OUT

0 1 0 Clamped to Ground Clamped to Ground1 1 0 3.3V 3.3V0 0 0 3.3V 12V1 0 0 3.3V Clamped to Ground0 1 1 Clamped to Ground Clamped to Ground1 1 1 5V 5V

0 0 1 5V 12V1 0 1 5V Clamped to Ground

Table 4. MIC2560-2 Logic

Figure 2. The Data Book DB86184 and two MIC2560-2BWM in a typical two slot application.




2-74 1997

Intel ControllersIntel PC Card logic controllers generally interface with theoption “–0”, MIC2560-0 and MIC2561-0. The older Intel82365 supports two V PP pins per slot, but only one V CC level(5V). Use the MIC2558 PCMCIA Dual Card Slot V PP Switch-ing Matrix to control the additional V PP for each socket. Sincethe MIC2558 has separate V CC inputs, full independencebetween V PP2 of slot A and V PP2 of slot B is maintained. Since

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1 FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-0BWM

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

12

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1 FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-0BWM

I n t e l 8 2 3 6 5 S L

VPP 1_EN0 (pin 75)VPP 1_EN1 (pin 76)


VPP 1_EN0 (pin 158)

VPP 1_EN1 (pin 159)


VCC _EN

VCC _EN

12

MIC2558

7

6

5

4

3

2

8

9

10

11

12

13

14

+5V +12V

VCC

VPP1

VPP2

VCC

VPP1

VPP2

Slot A

Slot B

only 5V is available for V CC OUT, connect all MIC2560/ MIC2561 V CC inputs together. These inputs, including bothVCC3 IN pins, are rated to 6V, so no damage will occur. Takeadvantage of the lower ON resistance of the 3.3V V CC switchby using the V CC3_EN control as the V CC enable. Figure 3shows this configuration.

Figure 3. A two slot configuration using the Intel 82365 controller and the MIC2560-0. Note that this Intelcontroller does not support 3.3V supplies: for best results, connect the +5V supply to all V CC pins (both V CC3 IN

pins and the V CC5 IN pin.




1997 2-75

Interfacing with the Intel PPEC PCI to PCMCIA logic controllerThe Intel PPEC (PCI to PCMCIA Enhanced IDE Controller)is a dual slot, dual V CC controller that does not provide latcheddata outputs for power control. Thus, an external latch isrequired. This latch is easily implemented using a 74273 or

equivalent Octal D Flip-Flop. One octal latch supplies twoslots (two MIC2560-0 or MIC2561-0). Figure 4 and Table 5illustrate this system.

D

CLOCKCLEAR

Q

D

CLOCKCLEAR

Q

D

CLOCKCLEAR

Q

D

CLOCKCLEAR

Q

D

CLOCKCLEAR

Q

D

CLOCKCLEAR

Q

D

CLOCKCLEAR

Q

D

CLOCKCLEAR

Q

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

12

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

GND

7

6

5

4

3

2

11

10

12

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

+5V

19

16

15

12

9

6

5

2

1

11

17

14

13

8

7

4

3

18

74273Octal D Flip-flop with clear

109

113

115

117

120

122

170172174

A C D A T A 0

PWRWR#

A C D A T A 2

A C D A T A 1

ACDATA7

ACDATA6

ACDATA3

ACDATA4

ACDATA5

IntelPPEC

MicrelMIC2560-0BWM

MicrelMIC2560-0BWM

Table 5. Power controlsignals for Figure 4.

Figure 4. A dual slot system using the Intel PPEC controller and the MIC2560-0/MIC2561-0.

Intel PPEC 74273 MIC2560-0Power Signal Pin Name Pin # Pin # In Pin # Out Pin Name Pin #A-EN0 ACDATA0 170 3 2 EN0 7

A-EN1 ACDATA1 172 4 5 EN1 8

A-VCC3V ACDATA4 115 7 6 V CC3_EN 6

A-VCC5V ACDATA5 117 8 9 V CC5_EN 5

B-EN0 ACDATA2 174 13 12 EN0 7

B-EN1 ACDATA3 113 14 15 EN1 8

B-VCC3V ACDATA6 120 17 16 V CC3_EN 6

B-VCC5V ACDATA7 122 18 19 V CC5_EN 5




2-76 1997

Omega Micro ControllersThe MIC2560, MIC2561, MIC2562, and MIC2563 are com-patible with Omega Micro logic controllers, including the82C722GX ISA to PCMCIA (use the “–1” option, shown inFigure 5) and the 82C094 PCI to PCMCIA (use the “–0”option, shown in Figure 6) controllers. Both controllers sup-

port dual V CC voltages to dual slots. The 82C094 offers aserial control output: the Omega Micro 82C28 converts thisserial output into the latched parallel control required byMicrel MIC256x-0 Power Controllers.

Figure 6. The Omega Micro 82C094 and two MIC256x-0 (or one MIC2563-0) adapt the PCI bus to PCMCIA. AnOmega Micro 82C28 converts serial output from the 82C094 to the parallel control needed by the MIC256x-0.

12

12

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1 FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-1BWM

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1 FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-1BWM

VCC

VPP

VCC

VPP

Slot B

Slot A

3.3V 5V 12V

A_VCC_5A_VCC_3

A_VPP_VCCA_VPP_PGM

B_VCC_5B_VCC_3

B_VPP_VCCB_VPP_PGM

A_SLOT_VCC

B_SLOT_VCC

O

m e g a

M i c r o

8 2 C 7 2 2 G X

Figure 5. The Omega Micro 82C722GX and two MIC256x-1 (or one MIC2563-1) adapt the ISA bus to two PCMCIAsockets.

12

12

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1 FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-0BWM

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1 FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-0BWM

VCC

VPP

VCC

VPP

Slot B

Slot A

3.3V 5V 12V

A_VCC_5 (8)A_VCC_3 (9)

A_VPP_VCC (7)A_VPP_PGM (6)

B_VCC_5 (12)B_VCC_3 (13)

B_VPP_VCC (11)B_VPP_PGM (10)

A_SLOT_VCC

B_SLOT_VCC

O m e g a

M i c r o

8 2 C 0 9 4

P C I t o P C M C I A

SCLK

SDATA

SLATCH

VCC_ACT_HIGH (2)

VPP_ACT_HIGH (4)

GND (14)

Omega Micro 82C28

VCC (28)

SCLK (19)

SDATA (18)

SLATCH (16)

10k Ω

10k Ω

VCC

The Omega Micro 82C28 convertsserial power control signals from the82C094 into standard MIC256x-0parallel logic.




1997 2-77

Opti ControllersThe Opti 82C852 is logic compatible with Micrel “–1” optionlogic power controllers. Figure 7 shows a typical single-slotPC Card implementation using the Opti 82C852 and theMIC2560-1 power controller. The MIC2561-1 and MIC2562-1 are also directly compatible with the 82C852.

Figure 8 shows the Opti 82C824 dual-slot logic controllerinterfacing with the MIC2563A-1. Two MIC2560-1, MIC2561-1, or two MIC2562A-1 power controllers are also compatiblewith the 82C824.

MIC2563A-1BSM

VCC

VPP

3.3V 5V 12V

VCC_5V (pin 151)VCC_3V (pin 152)VPP_12 (pin 149)

VPP_3/5 (pin 150)

Slot A

VCC_5V (pin 7)

VCC_3V (pin 6)

VPP_12 (pin 9)

VPP_3/5 (pin 8)

7

6

5

4

3

2

11

10

12

13

14

8

9

28

27

26

15

16

17

18

19

20

21

22

23

24

25

VCC

VPP

Slot B

O p t i 8 2 C 8 2 4

Figure 8. The Opti 82C824 dual slot CardBus controller/docking station that works with the MIC2563 forming atwo-IC solution for two PC Card slots.

12

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1 FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-1BWM

VCC

VPP

3.3V 5V 12V

VCC_5V (pin 98)VCC_3V (pin 99)VPP_VCC (pin 1)VPP_PGM (pin 2)

O p

t i 8 2 C 8 5 2

Slot

Figure 7. The Opti 82C852 is a single slot PC Card logic controller that directly interfaces with Micrel MIC2560-1,MIC2561-1, or MIC2562-1 power controllers.




2-78 1997

Vadem ControllersThe MIC2560-0, MIC2561-0, MIC2562-0, and MIC2563-0are compatible with Vadem logic controllers, including theVG-365, VG-465, VG-468, and VG-469. The VG-365, VG-465, and VG-468 are straight forward implementations; the

VG-469 with its flexible voltage control scheme requires astrapping option for voltage control. Refer to Vadem’s designliterature for full details. Table 6 shows the VG-469 V CCstrapping options for positive pin polarity.

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1 FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-0BWM

EN1 1

EN0 1

VDD

VCC 3/5

VCC EN

GND

7

6

5

4

3

2

11

10

12

13

14

15

16

8 9

VCC3 IN

VCC OUT

VCC5_EN

VCC3_EN

EN0

EN1 FLAG

N/C

VPP IN

VCC OUT

VCC5 IN

VPP OUT

VCC OUT

N/C

VCC3 IN

MIC2560-0BWM

V a

d e m

V G - 3

6 5

VPP 1_EN0

VPP 1_EN1

VPP 2_EN0VPP 2_EN1

VPP 1_EN0

VPP 1_EN1

VPP 2_EN0VPP 2_EN1

VCC _EN

VCC _EN

12

MIC2558

7

6

5

4

3

2

8

9

10

11

12

13

14

+5V +12V

VCC

VPP1

VPP2

VCC

VPP1

VPP2

Slot A

Slot B

Figure 7. A dual slot PC Card system using the Vadem VG-365 and the MIC256x-0.One MIC2563-0 may replace the two MIC2560-0 shown in this schematic.

Table 6. Vadem VG-469 flexible voltage control strapping scheme for the MIC2560-0,MIC2561-0, MIC2562-0, or the MIC2563-0.

D1 D0 V CC_EN1 VCC_EN0 VCC OUTReg 2F/6F Reg 2F/6F

1 0 0 0 Hi-Z1 1 0 1 3.3V

0 0 1 0 5V0 1 1 1 3.3V




1997 2 79

Serial-Interface Logic ControllersWith the advent of the CardBus option, logic controllers needmore and more pins to handle the extra functions. Some ofthe eight pins previously reserved for power control are nowemployed for these new functions. Converting from a parallelcontrol bus to a serial bus is one answer: this change frees up

Component KeyU1 ............. MIC2563U2, U3 ...... 74x175U4 ............. 74x574

Serial Control Adapter P.C. Board Layout

Serial Control

Figure 6 shows conversion from a three-wire serial interface,such as used by the Cirrus Logic CL-PD6730, to the standardeight-line parallel interface used by the MIC2563A-1. It iscompatible with any of Micrel’s “-1” controllers. This interfacerequires three common, low cost 7400-series logic ICs:

• 74x574 Octal D Flip-Flop• 74x175 Quad Flip-Flop with Latches

(two needed)Either 3.3V or 5V logic devices may be used, depending uponthe control voltage employed by the slot logic controller. Pinnumbers in parenthesis refer to the MIC2563A-1BSM.Gerber™ files for this P.C. board layout are available to Micrel

customers. Please contact Micrel directly.Another serial-to-parallel solution for this application is the74HC594, 8-bit shift register with output registers. This de-vice contains the eight D flip-flops plus has latched outputssuitable for this purpose.

to six pins. However; the control logic inside the powercontroller must be significantly more complex to handle serialdata protocols.Existing parallel bus power controllers may be adapted forserial control operation. A typical circuit consists of two mainblocks: a serial to-parallel converter and an eight-bit latch.

4 2

5 7

12 10

13 15

1 CLR 9 CLK

D QSER_DATA

SER_CLK

SER_LATCH

RST#

D Q

D Q

D Q

D Q

D Q

D Q

D Q

2

3

4

5

6

7

8

9

19

18

17

16

15

14

13

12

11

10

174x574

20

VCC

D Q

D Q

D Q

D Q

4 2

5 7

12 10

13 15

1 CLR 9 CLK

D Q

D Q

D Q

D Q

A_VPP_PGM (Pin 8)

A_VPP_VCC (Pin 7)

A_VCC5_EN (Pin 5)

A_VCC3_EN (Pin 6)

B_VPP_PGM (Pin 22)

B_VPP_VCC (Pin 21)

B_VCC3_EN (Pin 19)

B_VCC5_EN (Pin 20)

74x175

74x175

Figure 6. Interfacing the MIC2563A with a serial-output data controller. Pinouts shown are for the MIC2563A-1and a three-wire serial controller.

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7400 Series Logic ICs