CM12864-26SLYB is a graphic dot matrix LCD display module. It mainly consists of a row driver/column driver and a 128× 64 full dot matrix LCD display. It can complete graphic display and can also display 8×4 (16×16 dot matrix) Chinese characters.
The CML2864-26SLYB is a graphic dot‑matrix LCD module with a 128 × 64 pixel display that can also render 84 Chinese characters. It operates from a +5 V supply and includes built‑in negative pressure for LCD driving. The module supports multiple display modes (yellow‑green, gray, blue, black‑white) and various backlight colors.
The manual describes the internal hardware blocks (row/column drivers, instruction and data registers, status flags, address counters), the external pinout, command set, timing diagrams, and an example interface with an 8031 microcontroller. It also lists physical dimensions and technical parameters for integration into designs. This manual is written in Chinese.
| Display resolution | 128 columns × 64 rows |
|---|---|
| Duty cycle | 1/64 |
| Operating temperature | -10 °C to 45 °C |
| Storage temperature | -20 °C to +70 °C |
| Backlight types | Yellow‑green, blue, white, red |
| Module size | 78 mm × 70 mm × 12 mm |
| Viewing area | 62 mm × 44 mm |
| Dot pitch | 0.05 mm |
| Dot size | 0.39 mm × 0.55 mm |
| Pin CS1 function | Select left half of screen |
| Pin CS2 function | Select right half of screen |
It provides a 128‑column by 64‑row dot matrix.
The duty cycle is 1/64.
The module measures 78 mm × 70 mm × 12 mm.