JD320240DZK is a Chinese graphic dot matrix LCD display module controlled by RA8802. It has the ability to display Chinese and English characters as well as graphics, supporting various font sizes and display modes. It features 512KByte ROM for character codes and 512Byte SRAM for custom character creation.
This manual introduces the JD320240DZK Chinese graphics dot‑matrix LCD module, describing its 320 × 240 pixel display, supported character sizes, dual‑page memory, and built‑in fonts. It explains the physical dimensions, connector pin functions, and how to interface the module with a controller such as the RA8802/8820.
The document details read/write operation timing, register functions, cursor control, window settings, and instruction execution times. It also lists the power requirements, temperature ranges, and other key technical parameters needed for integration and troubleshooting. This manual is written in Chinese.
| Power supply (VDD) | 4.5 V |
|---|---|
| Display resolution | 320 × 240 pixels |
| Display type | STN / blue film, negative display, 240 duty |
| Viewing angle | 60° |
| Module dimensions | 160.00 × 109.00 × 12.0 mm |
| View window size | 121.00 × 92.00 mm |
| Dot size | 0.33 × 0.33 mm |
| Operating temperature range | -20 °C to 70 °C |
| Storage temperature range | -30 °C to +80 °C |
The module requires a VDD supply of 4.5 V.
It displays 320 columns by 240 rows of pixels.
Pin 1 (VSS) is ground (0 V) and pin 2 (VED) is the positive supply (+3 V to 5 V).