MM5452 MM5453 Liquid Crystal Display Drivers
February 1995
MM5452 MM5453 Liquid Crystal Display Drivers
General Description
The MM5452 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 32 segments of LCD and can be paralleled to
increase this number The chip is capable of driving a 4 -
digit 7-segment display with minimal interface between 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 re-
ceived
Y
Y
Y
Y
Y
Y
DATA ENABLE (MM5452)
Wide power supply operation
TTL compatibility
32 or 33 outputs
Alphanumeric and bar graph capability
Cascaded operation capability
Applications
Y
Y
Y
Y
Features
Y
Y
Y
COPS
TM
or microprocessor displays
Industrial control indicator
Digital clock thermometer counter voltmeter
Instrumentation readouts
Remote displays
Serial data input
No load signal required
Block Diagram
TL F 6137 鈥?1
FIGURE 1
COPS
TM
is a trademark of National Semiconductor Corp
C
1995 National Semiconductor Corporation
TL F 6137
RRD-B30M105 Printed in U S A