PC87334VLJ datasheet(1/102 Pages) NSC

部件名	PC87334VLJ

功能描述	SuperI/O 3.3V/5V Floppy Disk Controller, Dual UARTs, Infrared, IEEE1284 Parallel Port, and IDE Interface

PDF	102 Pages

Scroll/Zoom	100%

制造商	NSC [National Semiconductor (TI)]

网页	http://www.national.com

标志

1 / 102 page

TLC12039

PRELIMINARY

March 1995

PC87334VLJPC87334VJG SuperIO

TM

33V5V Floppy Disk Controller Dual UARTs Infrared

IEEE1284 Parallel Port and IDE Interface

General Description

The PC87334VLJPC87334VJG is a single chip solution for

most commonly used IO peripherals in ISA EISA and Mi-

croChannel

based computers It incorporates a Floppy

Disk Controller (FDC) two full featured UARTs an IEEE

1284 compatible parallel port and all the necessary control

logic for an IDE interface Standard PC-AT

address decod-

ing for all the peripherals and a set of configuration registers

are also implemented in this highly integrated member of

the SuperIO family Advanced power management fea-

tures mixed voltage operation and integrated Serial-Infra-

Red (SIR) support makes the PC87334 an ideal choice for

low-power andor portable personal computer applications

The PC87334 FDC uses a high performance digital data

separator eliminating the need for any external filter compo-

nents It is fully compatible with the PC8477 and incorpo-

rates a superset of DP8473 NEC mPD765 and N82077 flop-

py disk controller functions All popular 525 and 35 flop-

py drives including the 288 MB 35

floppy drive are sup-

ported In addition automatic media sense and 2 Mbps tape

drive support are provided by the FDC

The two UARTs are fully NS16450 and NS16550 compati-

ble Both ports support MIDI baud rates and one port also

supports IrDA and the HP SIR compliant signaling protocol

The parallel port is fully IEEE 1284 level 2 compatible The

SPP (Standard Parallel Port) is fully compatible with ISA

EISA and MicroChannel parallel ports In addition to the

SPP EPP (Enhanced Parallel Port) and ECP (Extended Ca-

pabilities Port) modes are supported by the parallel port

All IDE control signals with DMA support are provided by the

PC87334 Only external signal buffers are required to imple-

ment a complete IDE interface

(Continued)

Features

Y

100% compatible with ISA EISA and MicroChannel

architectures

Y

The Floppy Disk Controller

Software compatible with the DP8473 the 765A and

the N82077

16-byte FIFO (disabled by default)

Burst and Non-Burst modes

Perpendicular Recording drive support

New high-performance internal digital data separator

(no external filter components required)

Low-power CMOS with enhanced power-down mode

Automatic media-sense support with full IBM TDR

(Tape Drive Register) implementation

Supports fast 2 Mbps and standard 1 Mbps

500 kbps250 kbps tape drives

Y

The Bidirectional Parallel Port

Enhanced Parallel Port (EPP) compatible

Extended Capabilities Port (ECP) compatible includ-

ing level 2 support

Bidirectional under either software or hardware

control

Compatible with ISA EISA and MicroChannel

architectures

Ability to multiplex FDC signals on parallel port pins

allows use of an external Floppy Disk Drive (FDD)

Includes protection circuit to prevent damage to the

parallel port when a connected printer is powered up

or is operated at a higher voltage

(Continued)

Block Diagram

TLC12039 – 1

TRI-STATE

is a registered trademark of National Semiconductor Corporation

SuperIOTM is a trademark of National Semiconductor Corporation

IBM

MicroChannel

PC-AT

and PS2

are registered trademarks of International Business Machines Corporation

C1995 National Semiconductor Corporation

RRD-B30M65Printed in U S A

类似零件编号 - PC87334VLJ

制造商	部件名	数据表	功能描述
National Semiconductor ...	PC87332	887Kb / 98P	PC87332VLJ (3.3V/5V) and PC87332VLJ-5 (5V) (SuperI/OTM III Premium Green) Floppy Disk Controller, Dual UARTs, IEEE1284 Parallel Port, and IDE Interfac
	PC87332VLJ	887Kb / 98P	PC87332VLJ (3.3V/5V) and PC87332VLJ-5 (5V) (SuperI/OTM III Premium Green) Floppy Disk Controller, Dual UARTs, IEEE1284 Parallel Port, and IDE Interfac
	PC87332VLJ-5	887Kb / 98P	PC87332VLJ (3.3V/5V) and PC87332VLJ-5 (5V) (SuperI/OTM III Premium Green) Floppy Disk Controller, Dual UARTs, IEEE1284 Parallel Port, and IDE Interfac
	PC87338	1Mb / 221P	ACPI 1.0 and PC98/99 Compliant SuperI/O

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