PC87351-XXX/VLA Datasheet

IC型號(hào)：
PC87351-XXX/VLA
PDF描述：
PC87351 PC98 and ACPI Compliant SuperI/O with System Wake-Up...
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PC87351 PC98 and ACPI Compliant SuperI/O with System Wake-Up Control

PRELIMINARY

May 1998

PC87351 PC98 and ACPI Compliant SuperI/O with

System Wake-Up Control

Highlights

General Description

The PC87351, a member of National Semiconductor鈥檚 Su-

perI/O family of integrated PC peripherals, is a 128-pin,

PC98 and ACPI compliant SuperI/O that offers a single-chip

solution to the most commonly used ISA peripherals.

The PC87351 incorporates: a Floppy Disk Controller (FDC)

which is available also on the Parallel Port pins as a multi-

plexed option (PPM), two enhanced Serial Ports, Infrared

Comunication Port (HP-SIR, Sharp-IR, and Consumer

Electronics-IR), a full IEEE 1284 Parallel Port, a Keyboard

and Mouse Controller (KBC), System Wake-Up Control

(SWC), General-Purpose Input/Output (GPIO) Ports with

assert interrupt capability, and Fan Speed Control (FSC).

Outstanding Features

鈥?/div>

Fan Speed Control for two fans

11 General-Purpose I/O Ports, bi-directional, with in-

terrupt assertion capability

System Wake-Up Control powered by V

, generates

power-up request in response to preprogrammed key-

board or mouse sequence, modem, telephone ring,

and two general-purpose events without an external

clock

Serial or parallel IRQ support

Programmable write protect for Floppy Disk Controller

Power-fail recovery support

鈥?/div>

Block Diagram

Parallel Port/

Floppy Drive

Interface

Serial

Interface

Serial Infrared

Interface Interface

Floppy Drive

Interface

ISA

Interface SERIRQ

PPM

Serial Port 1

Serial Port 2

with IR

Floppy Disk

Controller

IEEE 1284

Parallel Port

Host Interface

BAT

System Wake-Up

Control

Fan Speed Control

General-Purpose

I/O

Keyboard and Mouse

Controller

Wake-Up PWUREQ

Events

FANOUT0 FANOUT1

I/O Ports

Keyboard and Mouse Ports

Interface

IBM

廬

, MicroChannel

廬

, PC-AT

廬

and PS/2

廬

are registered trademarks of International Business Machines Corporation.

Microsoft

廬

and Windows

廬

are registered trademarks of Microsoft Corporation.

TRI-STATE

廬

is a registered trademark of National Semiconductor Corporation.

漏

1998 National Semiconductor Corporation

www.national.com

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