point matrix character liquid crystal display module user manual, introduces the basic characteristics, characteristics, instruction set and application of the dot matrix character liquid crystal display module.
The document describes the character LCD module built around the HD44780/KS0066 controller, its basic features such as 8×1 to 40×4 character display, 192‑character ROM, 64‑byte custom character RAM and 80‑byte data RAM. It also lists the standard 14‑pin interface and electrical characteristics like a 5 V ±10 % supply.
Safety, assembly and maintenance guidelines are covered, including protection‑film handling, static‑discharge precautions, soldering limits (≤280 °C, ≤3‑4 s), correct power‑up/down sequence (logic power first, driver power second), temperature compensation, storage recommendations (‑10 °C to +35 °C in anti‑static bag), and warranty information. This manual is written in Chinese.
| Display size | 8×1 to 40×4 characters |
|---|---|
| Supply voltage | 5 V ±10 % |
| Operating temperature | -10 °C to +35 °C |
| Data RAM | 80 bytes |
| Custom character RAM | 64 bytes |
| Character ROM | 192 characters |
Store it in an anti‑static polyethylene bag, sealed, at temperatures between –10 °C and +35 °C, in a dark place, without any pressure on the surface.
The soldering iron tip temperature should be kept below 280 °C, with each soldering operation lasting no more than 3‑4 seconds.
First connect the logic power supply, then the driver power supply; when powering down, disconnect the driver power first, then the logic power.