The CM202-3SL YA LCD module datasheet provides specifications, pinout, timing diagrams, internal structure, instruction set, and operating parameters.
This document describes the CM202-3SL YA LCD module produced by Brilliant Crystal. It details the module's electrical characteristics, mechanical dimensions, and display capabilities, including a 4‑line 16×4 character layout with 5×8 dot matrix characters.
The datasheet also explains the internal architecture—controller, driver, bias circuit, and RAM/ROM structures—and provides the full command set, timing diagrams, and example sub‑routines for initializing and controlling the display. This manual is written in Chinese.
| Supply Voltage (VDD) | +4.75~+5.25 V |
|---|---|
| Operating Voltage Range (V0) | +3.0~+10.0 V |
| Display Size | 116 mm × 32.5 mm × 7.8 mm |
| Character Capacity | 4 lines × 16 characters (64 total) |
The module operates from a VDD supply of +4.75 V to +5.25 V.
It can display four lines of 16 characters each, for a total of 64 characters.
Send the clear‑display command (all data bits 0, RS=0, R/W=0).
BF=1 indicates the module is busy with an internal operation and will not accept new commands until BF returns to 0.