12864-12 LCD display module can display Chinese characters and graphics, and has 8192 Chinese characters (16X16 dot matrix), 128 characters (8X16 dot matrix) and 64X256 dot matrix display RAM (GDRAM).
This service manual provides detailed information about the LCD Inline 12864-12 liquid crystal display module. It includes an overview of the display capabilities, physical dimensions, electrical characteristics, and supported interface modes.
The document describes the pin assignments, timing diagrams for parallel and serial interfaces, and the full set of commands used to control the display, such as clearing the screen, setting DDRAM addresses, and shifting the display. It also lists operating temperature ranges and power supply requirements. This manual is written in Chinese.
| Display resolution | 128 × 64 dots |
|---|---|
| Physical size (module) | 93 mm × 70 mm × 12.5 mm |
| Dot pitch | 0.52 mm × 0.52 mm |
| Dot size | 0.48 mm × 0.48 mm |
| Supply voltage (VDD) | 3.3 V – 5.5 V |
| Interface options | 8‑bit, 4‑bit, or 3‑bit serial |
| Operating temperature | -20 °C – 70 °C |
The module operates from 3.3 V to 5.5 V (VDD).
The module supports normal display, inverse display, sleep mode, and can shift the display left or right.