RA8825 データシートの表示（PDF） - RAIO

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RA8825

128x33 Dot Matrix LCD Driver Specification

RAIO 

Preliminary Version 1.1

RA8825

128x33 Graphic LCD Driver

1. General Description

The RA8825 is a Dot-Matrix LCD Driver. The embedded 528Byte display RAM supports up to 128x33 dots

LCD panel. The RA8825 also provides a scrolling buffer memory for scrolling functions. It supports up, down,

left and right scrolling features, and all of the scrolling functions are execute by hardware.

The RA8825 integrates many powerful hardware that including Contrast adjustment, 4x5 Key-Scan, eight

General Purpose I/O and EL Backlight signals for EL driver. The RA8825 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 8080/6800 8/4-bit Parallel Interface and

3-wire/4-wire Serial Interface

Support Maximum 128Seg x 33Com LCD Panel.

Built-in 528 Bytes Display RAM and 354Byte

Scrolling Buffer

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 : 2.6~3.6V

Package : Gold Bump Die

3. System Block Diagram

MPU

GPIO

RA8825

LCD Panel

EL Back

Light

Driver

4x5

Key Scan

RAiO TECHNOLOGY INC.

4. Pad and Package

Icon

128x32

COG

RA8825

FPC

#N

#1

COG Module

2/6

www.raio.com.tw

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