ST
Sitronix
ST7713
262K Color Single-Chip TFT Controller/Driver
1. Introduction
The ST7713 is a single-chip controller/driver for 262K-color, graphic type TFT-LCD. It consists of 396 source line and
132 gate line driving circuits. This chip is capable of connecting directly to an external microprocessor, and accepts Serial
Peripheral Interface (SPI), 8-bits/9-bits/16-bits/18-bits parallel interface. Display data can be stored in the on-chip display
data RAM of 132 x 132 x 18 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 display data RAM
Display resolution: 132 (H) x RGB x 132 (V)
Display data RAM (frame memory): 132 x 132x 18-bits = 313,632 bits
Output:
- 396 ch source outputs (132RGB)
- 132 ch gate outputs
- Common electrode output
Display mode (color mode)
- Full color mode (idle mode off): 262K-colors
- Reduce color mode (idle mode on): 8-colors (1-bit for individual R, G, B color depth)
Display resolution
- 132 x 132 display with 132 x 18-bits x 132 display RAM
Supported LC type option
- Transflective (TR) LC type (When LCM1,LCM0 = “00”)
- Transmissive (TM) LC type (When LCM1,LCM0 = “01”)
- Low voltage (LV) LC type (When LCM1,LCM0 = “10”)
- MVA LC type (When LCM1, LCM0 = “11”)
Supported data format on display host interface
- 12-bits/pixel: RGB= (444) using the 384k-bits frame memory and LUT
- 16-bits/pixel: RGB= (565) using the 384k-bits frame memory and LUT
- 18-bits/pixel: RGB= (666) using the 384k-bits frame memory
Supported MCU Interface
- 3-line serial interface
- 4-line serial interface
- 8-bits, 9-bits, 16-bits, 18-bits interface with 8080-series MCU
- 8-bits, 9-bits, 16-bits, 18-bits interface with 6800-series MCU
- 8-bits, 16-bits, 18-bits RGB interface with graphic controller
Display features
- Area scrolling
- Partial display mode
- Software programmable color depth mode
Build-in circuit
- DC/DC converter
- Adjustable VCOM generation
- Non-volatile (NV) memory to store initial register setting
- Oscillator for display clock generation
- Timing controller
- Support transflective, transmissive, low voltage, MVA type LC
- Factory default value (contrast, module ID, module version, etc) are stored in NV memory
- Line inversion, frame inversion
NV Memory
- 7-bits for ID2
- 8-bits for ID3
- 7-bits for VCOM adjustment
Sitronix Technology Corp. reserves the right to change the contents in this document without prior notice.
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