Key facts
- Brand
- RAiO
- Model
- RA8825
- Documents
- 2
- Languages
- ZH
- Last added
- 2000-01-01
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RAiO RA8825 LCD Drive Controller Manual
This manual describes the RAiO RA8825 LCD drive controller, which supports 128 × 33 LCD panels and includes 528 Bytes of display RAM, a 354 Byte buffer, and 32‑step brightness control. It outlines the controller’s internal architecture, power regulation, and key‑scan interfaces.
The document details the MPU interface options (8080/6800 series, 4‑bit or 8‑bit data bus, 3‑wire/4‑wire serial modes), pin assignments, voltage requirements (2.6‑3.6 V), and provides absolute maximum ratings, DC characteristics, and timing specifications for designers. This manual is written in Chinese.
RAiO RA8825 specifications
| Display resolution | 128 × 33 segments |
|---|---|
| Display RAM size | 528 Bytes |
| Scroll buffer size | 354 Bytes |
| Supported MPU interfaces | 8080/6800 4‑ or 8‑bit parallel, 3‑wire/4‑wire serial |
| Operating voltage range | 2.6 V – 3.6 V |
| General‑purpose I/O pins | 8 pins |
| Keyboard scan interface | 4 × 5 keys |
| Voltage booster ratio | 2 × ~ 3 × |
| Segment drivers | 128 segment drivers, 33 common drivers |
| Package type | Gold Bump Die |
Source: RAiO RA8825 LCD Driver Controller Specification Sheet
All RAiO RA8825 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the display memory size of the RA8825?
The RA8825 includes 528 Bytes of built‑in display RAM.
What voltage range can the RA8825 operate in?
It operates from 2.6 V up to 3.6 V.
What LCD panel size does the RA8825 support?
It supports LCD panels up to 128 × 33 pixels.