RA8822中文资料Two Layers Character / Graphic LCD Controller数据手册Raio规格书

描述 Description

The RA8803/RA8822 is a Dot-Matrix LCD controller which support both text and graphics mode. It built-in two Display RAM for two layers display, and an embedded 512Kbyte character ROM that consists of Chinese, English and ASCII fonts. In text mode, the RA8803/8822 support Chinese BIG5 code or GB code. The system (MPU) does not need take a lot of time to show the Chinese font in graphics mode.

The RA8803/8822 support 8080/6800 like MPU interface, and also provide 4-Bit or 8-Bit data bus. For LCD driver interface, it support the most of LCD Driver in the world. The RA8803 support maximum LCD panel is 320x240 dots, and RA8822 is 240x160 dots. If use extension mode then the RA8803 support up to 640x240(320x480) dots Panel, and RA8822support up to 480x160(240x320) dots. The embedded 10-Bit ADC and Analog Switch provide the 4-wires Touch Panel interface. The 5-Bit DAC provides the contrast control of the LCD panel. The RA8803/8822 also provide an 8x8 Key-Scan interface that reduces the loading of MPU. Except for 16x16 Chinese font size, RA8803/8822 also provides a great choice of different font sizes, such as 32x32, 48x48, or even 64x64. The embedded 512Byte SRAM allows user build their own characters or symbols for convenience.

The RA8803/8822 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.

特性 Features

·Support text and graphics Mode
·Maximum resolution: 320x240 with 2-Layers display

·Extension Mode: 640x240 (320x240)

·4/8-bit of 6800/8080 MPU interface and 4/8-bits driver interface

·Built-In smart 8x8 key-scan circuit

·Support horizontal and vertical scrolling

·Built-In 512kByte Font ROM

·Font Size Adjustable: 32x32, 48x48 or 64x64, and V/H Mixed Mode

·Support Full Size(16x16) and Half Size(8x16) Mode

·Font ROM Readable

·Support Align Function

·4 Gray Layer Display

·Bold Font and Line Distance Setting

·Built-In 10-Bit ADC for Touch Panel

·Built-In 5-Bit DAC for Contrast Control