The Qingyun LCM128643 LCD module manual provides specifications, wiring, and usage instructions for the 128×64 graphic display.
This manual describes the Qingyun LCM128643 graphic LCD module, a 128×64 dot‑matrix display that supports STN yellow‑green, blue‑film and FSTN modes. It details the physical dimensions, electrical characteristics, backlight options, and the 8‑bit parallel interface.
The document includes pin definitions, timing diagrams for read/write operations, application circuit examples, and handling precautions to ensure reliable operation in temperatures from –20 °C to 70 °C. This manual is written in Chinese.
| Display resolution | 128×64 dots |
|---|---|
| Dot size | 0.4 × 0.56 mm |
| Dot spacing | 0.04 mm |
| Module size (L×W×H) | 78 × 70 × 13 mm |
| Operating voltage | 5 V (typical, 4.5‑5.5 V range) |
| Operating current | 2.7 mA (typical) |
| Viewing angle | 6 o’clock |
| Supply voltage for logic (VDD) | 4.5 – 5.5 V |
| Supply current for logic (IDD) | 2.62 – 4 mA |
The module operates at 5 V typical, with a permissible range of 4.5 V to 5.5 V.
The module can operate from –20 °C to 70 °C and be stored from –30 °C to 80 °C.
Avoid mechanical vibration, do not press or scrape the screen, and clean only with a cotton swab lightly dampened with petroleum benzene; do not use organic solvents.