COP472WM3 National Semiconductor, COP472WM3 Datasheet

COP472WM3

Manufacturer Part Number

COP472WM3

Description

SOP20

Manufacturer

National Semiconductor

Datasheet

1.COP472N3NOPB.pdf (8 pages)

Specifications of COP472WM3

Date_code

09+

Current page: 1 of 8
Download datasheet (144Kb)

C 1996 National Semiconductor Corporation

COP472-3 Liquid Crystal Display Controller

General Description

The COP472–3 Liquid Crystal Display (LCD) Controller is a

peripheral member of the COPS

CMOS technology The COP472-3 drives a multiplexed liq-

uid crystal display directly Data is loaded serially and is held

in internal latches The COP472-3 contains an on-chip oscil-

lator and generates all the multi-level waveforms for back-

planes and segment outputs on a triplex display One

COP472-3 can drive 36 segments multiplexed as 3 x 12

gether to drive 72 segments (3 x 24) which could be an 8

digit display

Block Diagram

COPS

digit display) Two COP472-3 devices can be used to-

and MICROWIRE

are trademarks of National Semiconductor Corporation

TL DD 6932

family fabricated using

Features

Direct interface to TRIPLEX LCD

Low power dissipation (100 W typ )

Low cost

Compatible with all COPS processors

Needs no refresh from processor

On-chip oscillator and latches

Expandable to longer displays

Operates from display voltage

MICROWIRE

20-pin Dual-In-Line package and 20-pin SO

RRD-B30M56 Printed in U S A

compatible serial I O

http

www national com

TL DD 6932 – 1

July 1995

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