SMG12864ZK standard Chinese character and graphic dot matrix LCD display module (LCM) adopts dot matrix LCD display (LCD), can display 128X64 dot matrix or 8 X4 lines of Chinese characters, the dot size is 0.5X0.5 (WXH) mm, built-in ST7920 interface type LCD display controller, built-in GB2312 code simplified Chinese character library (16X16 dot matrix), can be directly connected to MCU single chip microcomputer, has 8-bit parallel and serial connection methods, widely used in various instruments and electronic devices.
The SMG12864ZK is a dot‑matrix LCD display module that can show 128×64 pixels or 8 × 4 lines of Chinese characters. It uses an ST7920 LCD controller and includes a built‑in GB2312 simplified‑Chinese font library. The module operates from a 5 V supply and supports both 8‑bit parallel and serial interfaces, making it suitable for a wide range of instruments and electronic equipment.
The manual details the pin layout, electrical characteristics, timing parameters, and command set. It explains how to connect the module to an MCU, configure display modes, and use the built‑in RAM (DDRAM, CGRAM, IRAM) for custom characters and graphics. Wiring diagrams, initialization sequences, and test procedures are also provided. This manual is written in Chinese.