This manual provides detailed instructions for the dot‑matrix character LCD module, including safety precautions, module features, pin functions, timing parameters, and programming commands. It also includes an appendix with the internal character set of the HD44780/KS0066 controller.
The document guides users on proper handling to avoid static discharge, correct soldering practices, power‑up sequencing, and storage recommendations, ensuring reliable operation and long service life of the module. This manual is written in Chinese.
| Power supply voltage | +5V ±10% |
|---|---|
| Ground pin voltage | 0 V |
| Enable cycle (TcycE) | 1000 ns |
| Enable pulse width (Pweh) | 450 ns |
| RAM size | 80 bytes |
Connect the logic power first, then the driver power; on power‑down, disconnect the driver power first, then the logic power.