The 4X9E LCD display module manual from Shanghai Sixian Electronics provides specifications, pin definitions, and operation instructions.
This manual introduces the 4X9E graphic dot‑matrix LCD display module, which includes a 256 KB ROM font library, 1170 Byte display RAM, and a 450 Byte scrolling buffer. It supports both Chinese and multilingual characters and offers 32 brightness steps.
The document details mechanical dimensions, electrical characteristics, pin assignments, and supported interfaces such as 8080/6800 parallel (4‑ or 8‑bit) and serial IIC, 3‑wire, and 4‑wire modes, enabling integration with various microcontrollers. This manual is written in Chinese.
| ROM Font Memory | 256 KB |
|---|---|
| Display RAM | 1170 Bytes |
| Resolution | 144 × 64 dots |
| Brightness Steps | 32 steps |
| Power Supply Options | 3.3 V or 5 V |
| Module Size | 90.0 mm × 60.0 mm × 11.5 mm |
| Active Display Area | 69.30 mm × 37.20 mm |
| Dot Size | 0.45 mm × 0.52 mm |
| Dot Pitch | 0.02 mm × 0.04 mm |
| Supported Interfaces | 8080/6800 parallel 4/8‑bit, IIC, 3‑wire, 4‑wire |
It can operate from 3.3 V, and a version is available for 5 V operation.
The module includes 32 brightness steps.
The LCD panel shows a 144 × 64 dot matrix.
It supports 8080/6800 parallel 4‑bit or 8‑bit bus, plus IIC, 3‑wire and 4‑wire serial interfaces.