ra8816 RAIO Technology Inc., ra8816 Datasheet - Page 5

• Manufacturer Part Number: ra8816
• Description: 144x65 Character/graphic Lcd Driver
• Manufacturer: RAIO Technology Inc.

Preliminary Version 1.6
1. General Description
2. Feature
3. Block Diagram
RAiO TECHNOLOGY INC.
The RA8816 is a Dot-Matrix LCD Driver that supports both character and graphic mode. It built-in a
256Kbyte character ROM that consists of Chinese, English and ASCII fonts. The embedded 1170Byte
display RAM supports up to 144x65 dots LCD panel. The RA8816 also provides a scrolling buffer memory
for scrolling functions. It supports up, down, left and right scrolling features, and all of the scrolling is execute
by hardware.
In character mode, the RA8816 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 RA8816 integrates much
powerful hardware that including Contrast adjustment, 4x5 Key-Scan, eight General Purpose I/O and EL
Backlight signals for EL driver.
The RA8816 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.
Support both Character and Graphic Mode
Support 8080/6800 8/4-bit Parallel Interface,
Built-in 256KB Font ROM: Chinese, English,
Support ASCII 8x8/8x16 Half Size Font,
Support Maximum 144Seg x 65Com LCD
Built-in 1170 Bytes Display RAM and 450Byte
3-Wire/4-Wire Serial Interface, IIC interface
ASCII, Japanese, Latin, Latin-ext A, Latin-ext
B
16x16 Full Size Chinese Font
Panel. 4 x 9 Chinese Fonts(16x16), or 8 x 18
English Fonts(8x8)
Scrolling Buffer
G P IO
M P U
Figure 3-1: System Block
R A 8 8 1 6
K e y S c a n
5/68
4 x 5
Support 1/65 Duty, 1/9~1/5 Bias Panel
Built-in 2X~4X(Voltage Booster), Voltage
Eight General Purpose I/O
Built-in 4x5 Key-scan Circuit
Support Horizontal/Vertical Scrolling Functions
Built-in 256Byte SRAM for Create Font
Provide Signals for EL Driver
Provide 32-Steps Contrast Adjuster
Build-in RC Oscillator
Voltage Operation: VDD
Package: Gold Bump Die
Regulator, Voltage Follower
144x65 Character/Graphic LCD Driver
L C D P a n e l
L ig h t D riv e r
E L B a c k
www.raio.com.tw
2.7~3.8V
RA8816