ST7773 Datasheet, PDF (1/128 Pages) Sitronix Technology Co., Ltd. – 262K Color Single-Chip TFT Controller/Driver

ST
Sitronix
ST7773
1. Introduction
262K Color Single-Chip TFT Controller/Driver
ST7773 is a single-chip controller/driver for 262K-color, graphic type TFT-LCD. It consists of 528 source line and 220 gate
line driver circuits. This chip can be connected to a microprocessor direct through Serial Peripheral Interface (SPI) or
8-bits/9-bits/16-bits/18-bits parallel interface. The display data is stored in the on-chip Display Data RAM (DDRAM) of
176x220x18 bits. It can perform display data RAM read/write operation with no external operation clock to minimize power
consumption. In addition, because of the integrated power supply circuits necessary to drive liquid crystal, it is possible to
make a display system with fewer components.
2. Features
Single chip TFT-LCD Controller/Driver with RAM
On-chip Display Data RAM (i.e. Frame Memory)
- 176 x 220 x 18 = 696,960 bits
LCD Driver Output Circuits:
- Source Outputs: 176 RGB channels
- Gate Outputs: 220 channels
Display Resolution
- 176 (RGB) x 220
Display Colors (Color Mode)
- Full Color: 262K, RGB=(666) max., Idle Mode OFF
- Color Reduce: 8-color, RGB=(111), Idle Mode ON
Programmable Pixel Color Format (Color Depth) for
Various Display Data input Format
- 12-bit/pixel: RGB=(444) using whole frame memory
- 16-bit/pixel: RGB=(565) using whole frame memory
- 18-bit/pixel: RGB=(666) using whole frame memory
Various Interfaces
- Parallel 8080-series MCU Interface
(8-bit, 9-bit, 16-bit & 18-bit)
- 3-line serial interface
Display Features
- Programmable partial display duty
- Line inversion, frame inversion
- Supporting MVA type LC
- Support both normal-black & normal-white LC
Built-in Circuits
- DC/DC converter
- Adjustable VCOM
- 4 preset gamma curves (1.0, 1.8, 2.2 & 2.5)
- Oscillator for display clock generation
- Timing controller
Built-in NV Memory for LCD Initial Register Setting
- 7-bits for ID2
- 7-bits for VCOM adjustment
Wide Supply Voltage Range
- I/O Voltage (VDDI to DGND): 1.6V~3.3V
- Analog Voltage (VDD to AGND): 2.7V~3.3V
On-Chip Power System
- Source Voltage (GVDD to AGND): 3.0V~5.0V
- VCOM HIGH level (VCOMH to AGND): 2.5V to 5.0V
- VCOM LOW level (VCOML to AGND): -2.5V to 0.0V
- Gate driver HIGH level (VGH to AGND):
+10.0V to 16V
- Gate driver LOW level (VGL to AGND):
-13V to -5.5V
Operating Temperature: -30°C to +85°C
ST7773
8080 MCU Interface: 8-bit/9-bit/16-bit/18-bit
Serial Peripheral Interface : 3-line
Sitronix Technology Corp. reserves the right to change the contents in this document without prior notice
Ver. 2.0
1
2008-7-7