SMC2002A Liquid Crystal Display Module is a standard character dot matrix liquid crystal display module, using a dot matrix liquid crystal display, can display 20 characters X2 lines of Western characters, the character size is 3.2X5.55 (WXH) mm, built-in HD44780 interface type liquid crystal display controller, can be directly connected to MCU single-chip microcomputer, widely used in various instruments and electronic equipment.
The SMC2002A is a 20‑character by 2‑line STN LCD module with a character size of 3.2 × 5.5 mm. It incorporates an HD44780‑compatible controller and supports a supply voltage of 4.8‑5.2 V. The module operates from –20 °C to +70 °C and can be stored between –20 °C and +170 °C.
The manual describes the pinout, signal timing, initialization sequence, and data handling procedures. It also provides information on backlight configuration, including optional external current‑limiting resistors and recommended operating currents. This manual is written in Chinese.
| Display type | STN |
|---|---|
| Characters per line | 20 |
| Lines | 2 |
The module can display 20 characters per line.
Initialization is performed by sending a series of write commands to register 38H as described in the initialization procedure section.