This document is a user manual for the graphic dot matrix LCD display module by Guangzhou Ruitong Technology Co., Ltd. It introduces the main technical parameters and performance of the module, including display content, power supply, interface, display mode, backlight characteristics, etc. It also provides the outline dimension diagram and explanation of the main hardware components of the module, including row driver, column driver, instruction register, data register, etc.
The CM19264-4SLYB is a 192 × 64 dot matrix graphics LCD module with LED backlight. It operates from a +5 V supply and works in temperatures from –10 °C to +55 °C (storage –20 °C to +70 °C). The module uses a QB package and offers a viewing angle of 6°.
This manual describes the physical dimensions, external pin‑out, internal registers, XY and Z coordinate registers, timing diagrams, and example code for driving the display. It also lists electrical parameters and provides programming details for setting display data and control signals. This manual is written in Chinese.
| Resolution | 192 columns × 64 rows |
|---|---|
| Power Supply Voltage | +5 V (VDD) |
| Operating Temperature | -10 °C to +55 °C |
| Storage Temperature | -20 °C to +70 °C |
| Duty Cycle | 164 % (占空比 164) |
| Backlight Type | LED backlight |
| Package Type | QB |
The module displays 192 columns by 64 rows of dots.
It operates from a +5 V power supply (VDD).