RA8815 データシートの表示（PDF） - RAIO

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RA8815

128x33 Character/Graphic LCD Driver Specification

RAIO 

Preliminary Version 2.1

RA8815

128x33 Character/Graphic LCD Driver

1. General Description

The RA8815 is a Dot-Matrix LCD Driver which supports both character and graphic mode. It built-in a

256Kbyte character ROM that consists of Chinese, English and ASCII fonts. The embedded 528Byte display

RAM supports up to 128x33 dots LCD panel. The RA8815 also provides a scrolling buffer memory for

scrolling functions. It supports up, down, left and right scrolling features, and all of the scrolling are execute

by hardware.

In character mode, the RA8815 supports Chinese BIG5 code or GB code. The system(MPU) does not need

take a lot of time to show the Chinese font in graphic mode. It also provides small ASCII(8x8) and big

ASCII(8x16) font for English character, Japanese, European and Latin. The RA8815 integrates many

powerful hardware that including Contrast adjustment, 4x5 Key-Scan, eight General Purpose I/O and EL

Backlight signals for EL driver.

The RA8815 is a high integration chip of LCD Controller. It reduce a lot of time for system develop, and save

much cost for hardware system that due to it provides many features for related LCD display application.

2. Feature

Support both Character and Graphic Mode

Support 8080/6800 8/4-bit Parallel Interface and

3-wire/4-wire Serial Interface

Built-in 256KB Font ROM: Chinese, English,

ASCII, Japanese, Latin, Latin-ext A, Latin-ext B

Support ASCII 8x8/8x16 Half Size Font, 16x16

Full Size Chinese Font

Support Maximum 128Seg x 33Com LCD Panel.

2 x 8 Chinese Fonts(16x16), or 4 x 16 English

Fonts(8x8)

Built-in 528 Bytes Display RAM and 354Byte

Scrolling Buffer

Built-in 256Byte SRAM for Create Font

Built-in 2X~3X(Voltage Booster), Voltage

Regulator, Voltage Follower

Support 1/33 Duty, 1/6~1/4 Bias Panel

Eight General Purpose I/O

Built-in 4x5 Key Scan Circuit

Support Horizontal/Vertical Scrolling Functions

Provide Signals for EL Driver

Provide 32-Steps Contrast Adjust

Build-in RC Oscillator

Voltage Operation : Chip 2.5~3.6V，COG

Module 2.7~3.8V

Package : Gold Bump Die

3. System Block Diagram

MPU

GPIO

RA8815

4x5

Key Scan

LCD Panel

EL Back

Light

Driver

RAiO TECHNOLOGY INC.

2/6

www.raio.com.tw

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