Technical specification for the RAiO RA8806, a two-layer character and graphic LCD controller supporting 320x240 resolution, touch panels, and key-scan.
The RAiO RA8806 is a versatile LCD controller designed for dot-matrix STN-LCDs, supporting both character and graphic display modes. It features built-in Display Data RAM (DDRAM) for two-layer overlay displays and an embedded font ROM capable of displaying traditional Chinese (BIG5), simplified Chinese (GB), and Japanese Kanji fonts.
The device supports 6800/8080 MPU protocols with switchable 4-bit or 8-bit data buses. Key capabilities include a maximum resolution of 320x240 pixels in normal mode, extension modes up to 640x240 or 320x480, and an embedded 512-byte Character Generation RAM (CGRAM) for user-defined fonts. It also integrates a smart touch panel controller, key-scan circuitry, PWM output for backlight control, and power-saving sleep modes.
| Maximum Resolution (Normal Mode) | 320x240 pixels |
|---|---|
| Extension Mode Resolutions | 640x240 or 320x480 pixels |
| Embedded Font ROM (Chinese) | BIG5: 13973 characters; GB: 9216 characters |
| Embedded Font ROM (Japanese) | JIS standard Level-1 & 2 Kanji font |
| Embedded Half-size Characters | 4x256 characters (8x16 pixels) |
| MPU Interface Protocol | 8080/6800 MPU protocol interface |
| Data Bus Width | 4-bits or 8-bits |
| Character Generation RAM (CGRAM) | 512Byte |
| Power Supply Voltage | 2.4V ~ 5.5V |
| Clock Source Frequency | 4M ~ 12MHz crystal or external clock |
| Package Types | Die, LQFP-100, TQFP-80 Pins |
The maximum resolution is 320x240 pixels.
Yes, it includes a 512-byte CGRAM allowing up to 16 full-size or 32 half-size user-created fonts.
It supports both 8080 and 6800 MPU protocol interfaces.
The device is available in Die, LQFP-100, and TQFP-80 pin packages.