TLF6140

February 1995

MM5483 Liquid Crystal Display Driver

General Description

The MM5483 is a monolithic integrated circuit utilizing

CMOS metal-gate low-threshold enhancement mode devic-

es It is available in a 40-pin molded package The chip can

drive up to 31 segments of LCD and can be cascaded to

increase this number This chip is capable of driving a 4

-

digit 7-segment display with minimal interface between the

display and the data source

The MM5483 stores the display data in latches after it is

latched in and holds the data until another load pulse is

received

Features

Y

Serial data input

Y

Serial data output

Y

Wide power supply operation

Y

TTL compatibility

Y

31 segment outputs

Y

Alphanumeric and bar graph capability

Y

Cascade capability

Applications

Y

Y

Industrial control indicator

Y

Digital clock thermometer counter voltmeter

Y

Instrumentation readouts

Y

Remote displays

Block and Connection Diagrams

TLF6140 – 1

FIGURE 1

TLF6140 – 7

Order Number MM5483V

See NS Package Number V44A

Dual-In-Line Package

TLF6140 – 2

Top View

FIGURE 2

Order Number MM5483MS or MM5483N

See SSOP Package Number MS40A

See NS Package Number N40A

C1995 National Semiconductor Corporation

RRD-B30M105Printed in U S A