FDC37M81 View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37M81

PC98/99 Compliant Enhanced Super I/O Controller with Keyboard/Mouse Wake-Up

SMSC -> Microchip 

DESCRIPTION OF PIN FUNCTIONS

PIN

No./QFP

45:42,

40:37

31:21

20

34

55

46

33

32

48

50

52

47

49

51

54

35

36

4

6

19

61

62

53,65,

93

NAME

TOTAL SYMBOL

PROCESSOR/HOST INTERFACE (36)

System Data Bus

8

SD[0:7]

11-bit System Address Bus

11 SA[0:10]

Chip Select/SA11 (Note 2)

1

nCS/SA11

Address Enable

1

AEN

I/O Channel Ready

1

IOCHRDY

ISA Reset Drive

1

RESET_DR

V

Serial IRQ

1

SER_IRQ

PCI Clock for Serial IRQ

(33MHz/30MHz)

1

PCI_CLK

DMA Request 1

1

DRQ1

DMA Request 2

1

DRQ2

DMA Request 3/8042 P12

1

DRQ3/P12

DMA Acknowledge 1

1

nDACK1

DMA Acknowledge 2

1

nDACK2

DMA Acknowledge 3/8042 P16

1

nDACK3/

P16

Terminal Count

1

TC

I/O Read

1

nIOR

I/O Write

1

nIOW

Power Management Event

1

nIO_PME

8042 - P17 (Note 5)

1

P17

CLOCKS (1)

14.318MHz Clock Input

1

CLOCKI

INFRARED INTERFACE (2)

Infrared Rx

1

IRRX

Infrared Tx (Note 4)

1

IRTX

POWER PINS (8)

+5 Volt Supply Voltage

VCC

6

BUFFER TYPE

PER FUNCTION

(NOTE 1)

IO12

I

I/I

I

OD12

IS

IO12

ICLK

O12

O12

O12/IO12

I

I

I/IO12

I

I

I

OD24

IO8

ICLK

I

O24PD

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