MM5453

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 devices 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 received 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 COPSTM 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 – 1 FIGURE 1 COPSTM is a trademark of National Semiconductor Corp C1995 National Semiconductor Corporation TL F 6137 RRD-B30M105 Printed in U S A Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Voltage at Any Pin Operating Temperature VSS to VSS a 10V 0 C to a 70 C Storage Temperature Power Dissipation Junction Temperature Lea...