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ST7712 Datasheet, PDF (1/113 Pages) Sitronix Technology Co., Ltd. – 262K Color Single-Chip TFT Controller/Driver | |||
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ST
Sitronix
ST7712
1. Introduction
262K Color Single-Chip TFT Controller/Driver
The ST7712 is a single-chip which generates 396 Source lines and 132 gate lines controller/driver for 262K color TFT dot
graphic display. ST7712 support 18-bit high-speed bus interface and Serial Peripheral Interface (SPI), thus it can perform
bi-operation functions, data transfer, and high-speed RAM write function. Display data can be stored in an on-chip display
data RAM of 132x396x6 bits. It can perform display data RAM read/write operation without external operating clock to
minimize power consumption. In addition, because it contains power supply circuits necessary to drive liquid crystal, it is
possible to make a display system with the fewest components.
2. Features
Driver Output Circuits
â396 source output
â132 gate output
On-chip Display Data RAM
âCapacity: 396 Ã 132 Ã 6 =313,632bits
â65K colors (RGB)= (565) mode
â262K colors (RGB)= (666) mode
Applicable Duty Ratios
- Various partial display
- Partial window moving & data scrolling
Microprocessor Interface
â8/9/16/18-bit parallel bi-directional interface with
â6800-series or 8080-series
â4-line serial interface
â3-line serial interface
On-chip Low Power Analog Circuit
âOn-chip oscillator circuit
âVoltage converter generating liquid crystal driver up to
6-time scale
âSimultaneous availability of 262K color with γ-correction
function
Operating Voltage Range
âVcc: 2.4~3.3V (logic power supply)
âVci: 2.5~3.3V (analog power supply)
âIOVcc: 1.8~3.3V (interface power supply)
âSource line voltage: DDVDH=4.5~6.0V
Package Type
âApplication for COG
ST7712 6800 , 8080 ,4-Line , 3-Line interface
Ver 2.2
1/113
2006/07/07
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