GENERAL DESCRIPTION
The ST7789VI is a single-chip controller/driver for 262K-color, graphic type TFT-LCD. It consists of 720
source line and 320 gate line driving circuits. This chip is capable of connecting directly to an external
microprocessor, and accepts, 8-bits/9-bits/16-bits/18-bits parallel interface. Display data can be stored in the
on-chip display data RAM of 240x320x18 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
circuit necessary to drive liquid crystal; it is possible to make a display system with the fewest components.

FEATURES

Single chip TFT-LCD Controller/Driver with On-chip Frame Memory (FM)

Display Resolution: 240*RGB (H) *320(V)

Frame Memory Size: 240 x 320 x 18-bit = 1,382,400 bits

LCD Driver Output Circuits
- Source Outputs: 240 RGB Channels
- Gate Outputs: 320 Channels
- Common Electrode Output

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)
- 16-bit/pixel: RGB=(565)
- 18-bit/pixel: RGB=(666)

MCU Interface
- Parallel 8080-series MCU Interface (8-bit, 9-bit, 16-bit & 18-bit)
- 6/16/18 RGB Interface(VSYNC, HSYNC, DOTCLK, ENABLE, DB[17:0])
- Serial Peripheral Interface(SPI Interface)
- VSYNC Interface

Display Features
- Programmable Partial Display Duty
- CABC for saving current consumption
- Color enhancement

On Chip Build-In Circuits
- DC/DC Converter
- Adjustable VCOM Generation
- Non-Volatile (NV) Memory to Store Initial Register Setting and Factory Default Value (Module ID,
Module Version, etc)
- Timing Controller
- 4 preset Gamma curve with separated RGB Gamma setting

Build-In NV Memory for LCD Initial Register Setting
- 8-bits for ID1 setting
- 8-bits for ID2 setting
- 8-bits for ID3 setting
- 6-bits for VCOM Offset adjustment

Driving Algorithm
- Dot Inversion
- Column Inversion

Wide Supply Voltage Range
- I/O Voltage (VDDI to DGND): 1.65V ~ 3.6V (VDDI VDD ≦ )
- Analog Voltage (VDD to AGND): 2.4V ~ 3.6V

On-Chip Power System
- Source Voltage (VAP (GVDD) to VAN (GVCL)): +6.4~-4.6V
- VCOM level: GND
- Gate driver HIGH level (VGH to AGND): +12.2V ~ +14.97V
- Gate driver LOW level (VGL to AGND): -12.5V ~ -7.16V
- Adjustable voltage range for feed through compensation: 0.1V~1.675V

Optimized layout for COG Assembly

Operate temperature range: −40℃ to +85℃

Lower Power Consumption