This document introduces the user manual for dot matrix character LCD display module, including precautions, basic features, characteristics, instruction set, applications, etc.
The document describes the Wei'an character LCD module based on the HD44780/KS0066 controller. It supports displays of 8×1 or 40×4 characters and includes details on module dimensions, electrical characteristics and recommended operating conditions.
The manual also covers the pinout, voltage levels, timing requirements, reset procedure and programming examples, allowing designers to integrate the module into their circuits and control it via standard parallel interfaces. This manual is written in Chinese.
| Display size | 8×1, 40×4 characters |
|---|---|
| Operating voltage | +5 V (±10 %) |
| Temperature range (storage) | -10 °C to +35 °C |
| Temperature range (operation) | -20 °C to +70 °C |
| ROM capacity | 192 characters |
| Input voltage levels (VIH) | 2.2 V – VDD |
| Input voltage levels (VIL) | -0.3 V – 0.6 V |
The module operates from a +5 V supply, with a tolerance of ±10 %.
The module can operate from –20 °C up to +70 °C.