Version 1.1 Brief Specification

Character/Graphic TFT LCD Controller

RA8872

1. Description

RA8872 is a TFT LCD controller which supports the character and graphic mixed display. It is designed to

meet the requirement of middle size TFT module up to 320x240 pixels with characters or 2D graphic

application. With internal RAM, RA8872 can supports 65K color for 320x240 dots TFT Panel, 4K color for

640x240 display , or 4K color for 320x240 dots with 2-Layers.

The embedded CGROM is capable to display the alphaset of international standard ISO 8859-1/2/3/4. It

includes 256x4 characters and can satisfiies almost English or Eurpean language family countries. For

graphic usage, RA8872 supports a 2D Block Transfer Engine(BTE) that is compatible with 2D BitBLT function

for processing the mass data transfer function. The geometric speed-up engine provides user an easy way to

draw the programmable geometric shape by hardware, like line, square and circle. Besides, many powerful

functions are combined with RA8872, such as screen rotation function, scroll function, graphic pattern, 2-layer

mixed display and font enlargement function. These functions will save user a large of software effort during

developement period.

RA8872 is a powerful and cheap choice for color application. To reduce the system cost, RA8872 proivde low

cost 8080/6800 MCU I/F, a flexible 4-wires Touch Panel controller, PWM for adjusting panel back-light and

some GPIOs. With the RA8872 design-in, user can achieve an easy-to-use, low-cost and high performace

system compared with the other solution.

2. Feature

Support Text/Graphic Mixed Display Mode.

Support 8/12/16-Bits Generic RGB TFT Panel:

2 Layers : Up to 320x240 Pixels, 4K Color

1 Layer : Up to 320x240 Pixels, 65K Color.

Color Depth TFT: 256/4K/65K Colors.

Supporting MCU Interface: 8080/6800 with 8

Data Bus Width.

Internal DDRAM Size: 230KB

Embedded 10KB Character ROM with Font Size

8x16 Dots and Supporting Character Set of

ISO8859-1/2/3/4.

Embedded Block Transfer Engine (BTE) with 2D

Function.

Embedded Geometric Speed-up Engine.

Font Enlargement X1, X2, X3, X4 for Horizontal

or Vertical Direction.

Screen Display Rotation 90°, 180° and 270° for

Different Panel Type.

Support Font Vertical Rotation.

Support Block Scroll for Vertical or Horizontal

Direction.

Text Cursor for Character Writing.

32X32 Pixel Graphic Cursor Function.

Support 256 User-defined 8x16 Characters.

Support 32 User-defined Patterns of 8x8 Pixels.

2 programmable PWM for Back-Light Adjusting

or Other's Application.

Embedded 4-Wires Touch Panel Controller.

6 Sets of Programmable GPIO (GPIO0~5).

Clock Source: External X’tal Clock Input with

Internal PLL.

Sleep Mode with Low Power Consumption.

Operation Voltage: 3.0V~3.6V

Package: LQFP-100pin.

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