12864 LCD display module user manual, introduces the overview, appearance size, module pin description, etc. of 12864 LCD display module.
This manual describes the 12864 Chinese‑font LCD module, a 128 × 64 dot matrix display capable of showing Chinese characters and graphics. It includes the built‑in GB2312 character set, RAM layout and two interface options (8‑bit parallel or serial).
The document covers hardware connections, electrical characteristics, command tables, display coordinates, and example code for 8051‑based microcontrollers, helping users integrate and control the module in their projects. This manual is written in Chinese.
| Display resolution | 128 × 64 dots |
|---|---|
| Logical supply voltage (VDD) | 4.5 – 5.5 V |
| LCD drive voltage (V0) | 0 – ‑10 V |
| Operating temperature (normal) | 0 – 55 °C |
| Operating temperature (wide) | -20 – 70 °C |
| Physical size (example) | 93 × 70 mm |
| Viewable area | 73 × 39 mm |
The module operates from a logical supply voltage of 4.5 V to 5.5 V.
It supports two connection methods: an 8‑bit parallel interface and a serial interface, both described in the hardware interface section.
Normal operating temperature is from 0 °C to 55 °C.
Pull the /RST pin low (active‑low) to reset the module.