This manual provides specifications, electrical and optical characteristics, pinout, and usage instructions for the EDM12864-76 graphic LCD module.
The EDM12864-76 is a graphic dot‑matrix LCD module with a 128 × 64 pixel display, designed for integration with micro‑processor systems via a serial interface. The document describes its mechanical dimensions, electrical limits, and visual performance.
Key sections include the scope of use, quality assurance, performance features, mechanical drawing, I/O interface characteristics, quality grade, reliability data, production notes, and usage precautions. Detailed pin descriptions, serial communication timing, and character‑generation memory are also covered. This manual is written in Chinese.
| Display resolution | 128 × 64 dots |
|---|---|
| Module dimensions | 93.0 mm × 70.0 mm × 13.5 mm |
| Power supply voltage (Vdd) | 0 – 5.5 V |
| LCD driver voltage (Vdd‑Vee) | 0 – 7.0 V |
| Operating temperature | -25 °C to 70 °C |
| Storage temperature | -30 °C to 80 °C |
| Maximum humidity | 90 %RH |
| Typical power consumption (Idd) | 0.72 – 1.5 mA |
| CGROM character capacity | 8192 Chinese 16×16 characters and 128 numeric 16×8 symbols |
| CGRAM user‑defined character space | Four groups of 16×16 dot custom characters |
CGRAM provides four groups of 16 × 16‑dot user‑defined character space.
Pin 3 is CS (chip‑select) and is active high/low.
The module operates from –25 °C to +70 °C.