37C67X Ver la hoja de datos (PDF) - SMSC -> Microchip

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37C67X

Enhanced Super I/O Controller with Fast IR

SMSC -> Microchip 

PIN

No./QFP

37:40,

42:45

20:30

31

36

55

46

33

DESCRIPTION OF PIN FUNCTIONS

NAME

TOTAL SYMBOL

PROCESSOR/HOST INTERFACE (34)

System Data Bus

8

SD[0:7]

11-bit System Address Bus

Chip Select/SA11 (Note 1)

Address Enable

I/O Channel Ready

ISA Reset Drive

Serial IRQ/Parallel IRQ_3

11 SA[0:10]

1

nCS/SA11

1

AEN

1

IOCHRDY

1

RESET_DRV

1

SER_IRQ/

IRQ3

32

PCI Clock for Serial IRQ (33MHz/30MHz)/

1

Parallel IRQ_4

50

DMA Request 1

1

48

DMA Request 2

1

52

DMA Request 3/8042 P12

1

47

DMA Acknowledge 1

1

49

DMA Acknowledge 2

1

51

DMA Acknowledge 3/8042 P16

1

54

34

35

19

61

62

18,53,

65,93

Terminal Count

1

I/O Read

1

I/O Write

1

CLOCKS (1)

14.318MHz Clock Input

1

INFRARED INTERFACE (2)

Infrared Rx

1

Infrared Tx

1

POWER PINS (8)

Power

PCI_CLK/

IRQ4

DRQ1

DRQ2

DRQ3/P12

nDACK1

nDACK2

nDACK3/

P16

TC

nIOR

nIOW

CLOCKI

IRRX

IRTX

VCC

BUFFER

TYPE

IO24

I

I

I

OD24

IS

IO24/O24/

D24

(Note 0)

IO24/O24/

OD24

(Note 0)

O24

O24

O24/IO24

I

I

I/IO24

I

I

I

ICLK

I

O24

6

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