FDC37N958FRTQFP View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37N958FRTQFP

Notebook I/O Controller with Enhanced Keyboard and System Control

SMSC -> Microchip 

PinPin

PIN #

13

9

10

18

8

6

2

3

16

15

14

4:5

19

20

21

130

131

134

135

136

NAME

DESCRIPTION OF PIN FUNCTIONS

SUPPLY

DESCRIPTION

VOLTAGE

TYPE

nHDSEL

Head Select (1 = side 0 )

nDIR

Step Direction (1 = out )

nSTEP

Step Pulse

nDSKCHG

nDS0

Disk Change

Drive Select 0

nMTR0

Motor On 0

nDS1/

OUT5

Drive Select 1/

Output 5

nMTR1/

OUT6

Motor On 1/

Output 6

nWPROT

nTRK0

nINDEX

DRVDEN[0:1]

Write Protected

Track 0

Index Pulse Input

Drive Density Select [0:1]

MID[0]

MID[1]/

GPIO16

FPD

RXD1

TXD1

nRTS1

nCTS1

nDTR1

Media ID 0 input. In floppy

enhanced mode 2 this input is the

media ID [0] input.

Media ID 1 input. In floppy

enhanced mode 2 this input is the

media ID [1] input.

General Purpose I/O

Floppy Power Down output control.

This is the output of three power

down modes of the floppy (3F4,

auto-power down, configuration).

SERIAL PORT 1 INTERFACE

Receive Serial Data 1

Transmit Serial Data 1

Request to Send 1

Clear to Send 1

Data Terminal Ready 1

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

VCC2

O24/

OD24

O24/

OD24

O24/

OD24

IS

O24 /

OD24

O24 /

OD24

O24 /

OD24/

O24

O24 /

OD24

O24

IS

IS

IS

O24 /

OD24

IS

IS

I/O8

O8

I

O4

O4

I

O4

SMSC DS – FDC37N958FR

Page 5

Rev. 09/01/99

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