Key facts
- Manuals
- 2
- Languages
- ZH
- Last added
- 2012-02-25
Featured ST7920 manuals

ST7920 Controller Series LCD Module User Manual
The manual describes the ST7920 controller series LCD modules, including their main features such as 33‑line COM output, up to 236×32 dot matrix display, and built‑in Chinese and Latin character ROMs. It explains the hardware characteristics, available interfaces, power‑up reset, internal oscillator and RAM structures.
Detailed sections cover the module’s pin assignments, voltage levels, contrast adjustment circuitry, interface selection (parallel or serial), internal block diagrams, and programming of character, graphics and icon RAM. Electrical specifications such as operating current and voltage thresholds are also provided. This manual is written in Chinese.
Covers: Main Features · Hardware Description · Interface Details · Internal Hardware · Graphics RAM · Icon RAM

Renhe ST7920 LCD Module User Manual
This manual describes the ST7920 controller series LCD modules, including their main features, hardware layout, and built‑in font resources. It covers the parallel and serial interface options, power‑up reset, internal oscillator, and the various RAM areas for characters, icons and graphics.
Detailed sections explain the pin functions, voltage levels, contrast adjustment methods, and provide schematic diagrams for each module variant. The document also lists electrical characteristics such as input/output levels and current consumption, helping designers integrate the module into their systems. This manual is written in Chinese.
Covers: Main Features · Hardware Description · Interface to MCU · Electrical Characteristics · Pin Interface Table · LCD Drive Voltage
Latest ST7920 manuals
ST7920 Controller Series LCD Module User Manual
User Manual 35 pages · 532 KB · ZHChinese user manual for the ST7920 controller series LCD modules, covering features, hardware interfaces and specifications.
Renhe ST7920 LCD Module User Manual
User Manual 35 pages · 486 KB · ZHThe Renhe ST7920 LCD module manual provides hardware specs, interface details, and usage instructions for the Chinese‑character LCD controller.
Which document do I need?
User Manual
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in ST7920 manuals
What interface options does the ST7920 module support?
It provides 8‑bit and 4‑bit parallel interfaces and an optional serial interface.
How many Chinese characters are stored in the built‑in ROM?
The built‑in Chinese character ROM holds 8192 characters (16 × 16 dot matrix).
How do I select parallel or serial communication mode?
Set the PSB pin high for parallel mode or low for serial mode; the module may have a jumper or require external handling.
What built‑in character sets are available?
ST7920‑0A includes a BIG‑5 traditional Chinese font, while ST7920‑0B provides a simplified Chinese (0B code) font.
