A31W33128 Series Preliminary LCD Controller-Driver is a CMOS LCD driver produced by AMIC Technology, Inc. It has 128 segments and 17 or 33 common graphic displays. It has 80/68 series 8-bit parallel and serial interface capability for operating with general CPU. The internal 65 x 128 display data RAM makes the display of both graphics and characters possible. Besides the general LCD driver features, it has on chip internal DC/DC converter/External Power supply, Dual/Triple booster, 2 internal Icon common Output systems, TCP package and Gold bumps.
The A31W33128 is a CMOS LCD controller‑driver that supports 128 segment drivers and either 17 or 33 common drivers, with an on‑chip 128 × 65 display data RAM. It operates from a 2.4 V‑5.5 V logic supply and a 2.7 V‑11.0 V LCD‑drive supply, offering low power consumption (<1 µA) and built‑in bias, contrast, temperature compensation, and DC/DC conversion.
The handbook details the device’s features, block diagrams, pin‑out assignments, pad coordinates, input/output functions, example LCD panel connections, and ordering information for the COG and TCP packages.
| Logic power supply range | 2.4 V to 5.5 V |
|---|---|
| LCD drive power supply range | 2.7 V to 11.0 V |
| Segment drivers | 128 |
| Common drivers | 17 or 33 |
| Display Data RAM size | 128 × 65 bits |
| Interface type | 8‑bit parallel or serial (80/68‑Series) |
| Power‑save current | < 1 µA |
| Package options | A31W33128C (COG), A31W33128T (TCP) |
It operates from 2.4 V to 5.5 V for the logic supply.
The device includes 128 segment signal drivers.
The on‑chip RAM is 128 × 65 bits (display data RAM).
It is offered in a COG package (A31W33128C) and a TCP package (A31W33128T).