FDC37C957FR datasheet(11/328 Pages) SMSC

Nome de Peças	FDC37C957FR

Descrição Electrónicos	ULTRA I/O CONTROLLER FOR PORTABLE APPLICATIONS

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Fabricante Electrônico	SMSC [SMSC Corporation]

Página de início	http://www.smsc.com

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5

Pin #

Name

Description

Supply

Voltage

Type

53

PS2DAT/

8051TX/

GPIO[21]

PS2 Serial Data

VCC2

I/OD24

Serial IRQ / UART IRQs

101

SIRQ /

IRQ3(UA1)

Serial Interrupt

UART1 Interrupt

VCC2

I/O24

/O24

99

PSBCLK

PCI Clock input

VCC2

I

100

PSBDAT

UART2 Interrupt

VCC2

I/O24

/O24

FDD INTERFACE

The following FDC output pins can be configured as either Open Drain outputs capable of

sinking 24mA (OD24) or as push-pull outputs capable of driving 12mA and sinking 24mA

(O24). The FDC output pins must tristate when the FDC is in powerdown mode (it is required

that the board designer provide external pull-up resistors on these output pins).

17

nRDATA

Read Disk Data

VCC2

IS

12

nWGATE

Write Gate

VCC2

O24 /

OD24

11

nWDATA

Write Disk Data

VCC2

O24 /

OD24

13

nHDSEL

Head Select (1 = side 0 )

VCC2

O24 /

OD24

9

nDIR

Step Direction (1 = out )

VCC2

O24 /

OD24

10

nSTEP

Step Pulse

VCC2

O24 /

OD24

18

nDSKCHG

Disk Change

VCC2

IS

Nº de peça semelhante - FDC37C957FR

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Descrição semelhante - FDC37C957FR

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FDC37C957FR Folha de dados(PDF) 11 Page - SMSC Corporation

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Nº de peça semelhante - FDC37C957FR

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