FDC37B78X View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37B78X

Enhanced Super I/O Controller with ACPI Support, Real Time Clock and Consumer IR

SMSC -> Microchip 

PIN

No./QFP

62, 93,

NAME

+5V Supply Voltage

TOTAL SYMBOL

3

VCC

BUFFER TYPE

121

7, 48, Digital Ground

74, 104

4

VSS

67

Analog Ground

1

AVSS

69

Trickle Supply Voltage

1

VTR

65

Battery Voltage

1

VBAT

POWER MANAGEMENT (3)

19

Power On

1

nPOWERON

OD24

20

Button In

1

BUTTON_IN

I

21

Power Management Event/SCI/IRQ9

1

nPME

O12

FDD INTERFACE (16)

16

Read Disk Data

1

nRDATA

IS

11

Write Gate

1

nWGATE

O24

10

Write Disk Data

1

nWDATA

O24

12

Head Select

1

nHDSEL

O24

8

Step Direction

1

nDIR

O24

9

Step Pulse

1

nSTEP

O24

17

Disk Change

1

nDSKCHG

IS

5

Drive Select 0

1

nDS0

O24

6

Drive Select 1/GP17

1

nDS1

IO24

3

Motor On 0

1

nMTR0

O24

4

Motor On 1/GP16

1

nMTR1

IO24

15

Write Protected

1

nWRTPRT

IS

14

Track 0

1

nTRKO

IS

13

Index Pulse Input

1

nINDEX

IS

1

Drive Density Select 0

1

DRVDEN0

O24

8

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