Key facts
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- MM5452
- Industry
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- Last added
- 2012-05-03
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National Semiconductor MM5452/MM5453 Liquid Crystal Display Drivers Datasheet
The MM5452/MM5453 are monolithic CMOS integrated circuits designed to drive up to 32 LCD segments, with the ability to cascade for more. They accept serial data and clock inputs, require no load signal, and provide TTL‑compatible outputs. The devices are supplied in 40‑pin molded packages (dual‑in‑line or plastic chip carrier) and support both 4‑digit 7‑segment displays and bar‑graph applications.
Key features include a wide supply voltage range (3 V‑10 V), operation over –40 °C to 85 °C, low power dissipation (350 mW at 25 °C), and flexible output configurations (32 or 33 outputs). The datasheet provides absolute maximum ratings, electrical characteristics, functional block diagrams, and mechanical dimensions for designers.
National Semiconductor MM5452 specifications
| Supply Voltage (VDD) | 3 V to 10 V |
|---|---|
| Operating Temperature | −40 °C to 85 °C |
| Power Dissipation (25 °C) | 350 mW |
| Segment Sink Current (IOL) | -20 µA to -40 µA |
| Number of Outputs | 32 or 33 |
Source: National Semiconductor MM5452/MM5453 Liquid Crystal Display Drivers Datasheet
All National Semiconductor MM5452 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What supply voltage range does the MM5452/MM5453 support?
The device operates with a supply voltage (VDD) from 3 V up to 10 V.
From: National Semiconductor MM5452/MM5453 Liquid Crystal Display Drivers Datasheet
How many LCD segments can the MM5452 drive?
The MM5452 can drive up to 32 LCD segments, and more can be added by paralleling devices.
From: National Semiconductor MM5452/MM5453 Liquid Crystal Display Drivers Datasheet
What is the maximum clock frequency for the MM5452/MM5453?
The maximum clock frequency is 500 kHz.
From: National Semiconductor MM5452/MM5453 Liquid Crystal Display Drivers Handbook
How many outputs does the MM5452 provide?
The MM5452 provides 32 or 33 outputs.
From: National Semiconductor MM5452/MM5453 Liquid Crystal Display Drivers Handbook