Version 1.1

Character/Graphic LCD Controller

2/7

www.raio.com.tw

RA8802/8820

1. General Description

The RA8802/8820 is a Character/Graphic dot-matrix liquid crystal display controller (LCD) with embedded 512K

Byte Font ROM. The RA8802 supports up to 320x240 LCD panel size and RA8820 supports up to 240x160. In

tradition, users need a graphic LCM to display Chinese characters. Now Chinese character’s display of

RA8802/8820 presents a revolution. The RA8802/8820, instead of a MCU, can directly deal with the access of

Chinese/English fonts that consist of BIG5 or GB, and ASCII code.

The RA8802/8820 have some main functions as following. It’s equipped with 8-bit ADC, supporting touch panel

interface. DAC is 5-bit, providing the brightness control of the LCD panel. The RA8802/8820 built in PLL/OSC

two circuits provides user choice to generate system clock. The interface of RA8802/8820 fits both of 8080/6800

series’ MCU and 4/8-bit data bus. Besides that, the interface of LCD driver is compatible with many types of

LCD drivers on the market.

2. Feature

Dot matrix liquid crystal display controller

supporting the display of Character/Graphic.

Fast Character/Graphical Mode for ASCII &

Chinese (Big5 Code and GB Code) support.

Display Control Capacity

RA8802: 320×240 dots (Max), 20×15 full-size

character or 40×15 half-size character

RA8820: 240x160 dots (Max), 15x10 full-size

character or 30x10 half-size character

Display of 16x16 dot for full-size fonts consisting

of Chinese, 8x16 dots for half-size fonts of

alphanumeric characters and symbols in the

same display.

Clock source: RC Oscillator or 32K crystal for

PLL (External 32KHz Crystal need).

Built-in 9.6Kbyte/4.8Kbyte Display Data RAM

High-speed 4/8-bit MCU interface allowing direct

connection to both the 8080 and 6800.

LCD interface: LCD driver compatible for data

bus 4/8 bit supports.

Built in 8-Bit ADC and 5-Bit DAC.

Embedded 512KByte Font ROM and provide

512KByte Font ROM Interface.

BIG5:

--Includes standard font: 13094 Chinese words

--Includes special font: 408 Chinese words

--Includes two set ASCII codes

GB:

--Total font: 7602 Chinese words

Various instruction functions

--White black inversion, cursor

on/off/blink/bold/cursor height and cursor-width.

--Define the Active/Display window address.

Low Power Consumption.

Operating Voltage:

_ RA8802: 2.7~4.0V

_ RA8820: 2.7~5.0V

Package: DIE, PQFP 100, LQFP 100