The MM5483 is a liquid crystal display driver chip that can drive up to 31 segments of LCD and can be cascaded to increase this number. This chip is also capable of driving a 41⁄2-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.
The MM5483 is a monolithic CMOS LCD driver IC available in a 40‑pin molded Dual‑In‑Line package. It supports serial data input, can be cascaded, and drives up to 31 LCD segments for applications such as industrial indicators, digital clocks, and remote displays.
Key electrical specifications include a supply voltage range of 3.0 V to 10 V, operating temperature from –40 °C to +85 °C, maximum power dissipation of 300 mW at +85 °C, and a clock frequency up to 500 kHz. The device offers both three‑wire and two‑wire control modes with low output currents suitable for segment driving.
| Package | 40‑pin molded Dual‑In‑Line (N40A / V44A) |
|---|---|
| Operating Temperature | -40 °C to +85 °C |
| Supply Voltage | 3.0 V to 10 V |
| Maximum Power Dissipation | 300 mW at +85 °C |
| Maximum Clock Frequency | 500 kHz |
| Output Current Sink | 20 µA |
| LCD Segments Driven | Up to 31 segments |
It can drive up to 31 LCD segments.
The device supports a clock frequency up to 500 kHz.
The MM5483 is offered in a 40‑pin molded Dual‑In‑Line package, with order numbers MM5483N (N40A) and MM5483V (V44A).