MM5452/MM5453

Liquid Crystal Display Drivers

General Description

The MM5452 is a monolithic integrated circuit utilizing

CMOS metal gate, low threshold enhancement mode de-

vices. It is available in a 40-pin molded package. The chip

can drive up to 32 segments of LCD and can be paralleled to

increase this number. The chip is capable of driving a

the display and the data source.

The MM5452 stores display data in latches after it is clocked

in, and holds the data until new display data is received.

Features

n

Serial data input

n

No load signal required

n

DATA ENABLE (MM5452)

n

Wide power supply operation

n

TTL compatibility

n

32 or 33 outputs

n

Alphanumeric and bar graph capability

n

Cascaded operation capability

Applications

n

n

Industrial control indicator

n

Digital clock, thermometer, counter, voltmeter

n

Instrumentation readouts

n

Remote displays

Block Diagram

00613701

FIGURE 1.

December 2001

© 2001 National Semiconductor Corporation

DS006137

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