FDC37C957FR datasheet(10/328 Pages) SMSC

No. de pieza	FDC37C957FR

Descripción Electrónicos	ULTRA I/O CONTROLLER FOR PORTABLE APPLICATIONS

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Fabricante Electrónico	SMSC [SMSC Corporation]

Página de inicio	http://www.smsc.com

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10 / 328 page

4

Pin #

Name

Description

Supply

Voltage

Type

FLASH ROM/ Memory Map Interface

161:166,

168:169

FAD[0:7]

Flash Address/Data[7:0] Bus

VCC1

I/O8

170:175,

177:180

FA[8:17]

Flash Address[17:8]

VCC1

O8

182

nFRD

Flash MEM READ

VCC1

O8

183

nFWR

Flash MEM WRITE

VCC1

O8

181

FALE

Flash Address latch Enable

VCC1

O8

Keyboard

36:30,28: 22

KSO[0:13]

Keyboard Scan Outputs(14*8=112)

Configuring GPIO4 and GPIO5 as

KSO14 and KSO15 yields a scan

matrix of 16x8=128.

VCC1

OD4

44:37

KSI[0:7]

Keyboard Scan Inputs

VCC1

ISP

193

nEA

External Access for 2K ROM

VCC1

I

45

EMCLK

EM Serial Clk

VCC2

I/OD 24

46

EMDAT

EM Serial Data

VCC2

I/OD 24

47

IMCLK

IM Serial Clk

VCC2

I/OD 24

48

IMDAT

IM Serial Data

VCC2

I/OD 24

50

KBCLK

KBD Serial Clk

VCC2

I/OD 24

51

KBDAT

KBD Serial Data

VCC2

I/OD 24

52

PS2CLK/

8051RX/

GPIO[20]

PS2 Serial Clk

VCC2

I/OD24

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FDC37C957FR Datasheet(PDF) 10 Page - SMSC Corporation

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