Products>LCD Driver for Mobile Phone>ST7735
262K Color Single-Chip TFT Controller/Driver

Product Description

The ST7735 is a single-chip controller/driver for 262K-color, graphic type TFT-LCD. It consists of 396 source line and 162 gate line driving circuits. This chip is capable of connecting directly to an external microprocessor, and accepts Serial Peripheral Interface (SPI), 8-bit/9-bit/16-bit/18-bit parallel interface. Display data can be stored in the on-chip display data RAM of 132 x 162 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.

  • Single chip TFT-LCD Controller/Driver with RAM
  • On-chip Display Data RAM (i.e. Frame Memory)
    -132 (H) x RGB x 162 (V) bits
  • LCD Driver Output Circuits:
    -Source Outputs: 132 RGB channels
    -Gate Outputs: 162 channels
    -Common electrode output
  • Display Resolution
    -132 (RGB) x 162
    (GM[2:0]= 000, DDRAM: 132 x 18-bits x 162)
    -128 (RGB) x 160
    (GM[2:0]= 011, DDRAM: 128 x 18-bits x 160)
  • 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 the 384k-bit frame memory and LUT
    -16-bit/pixel: RGB=(565) using the 384k-bit frame memory and LUT
    -18-bit/pixel: RGB=(666) using the 384k-bit frame memory and LUT
  • Various Interfaces
    -Parallel 8080-series MCU Interface (8-bit, 9-bit, 16-bit & 18-bit)
    -3-line serial interface
    -4-line serial interface
  • Display Features
    -Programmable partial display duty
    -Line inversion, frame inversion
    -Support both normal-black & normal-white LC
    -Software programmable color depth mode
  • Built-in Circuits
    -DC/DC converter
    -Adjustable VCOM generation
    -Non-volatile (NV) memory to store initial register setting
    -Oscillator for display clock generation
    -Factory default value (module ID, module version, etc) are stored in NV memory
    -Timing controller
  • Built-in NV Memory for LCD Initial Register Setting
    -7-bits for ID2
    -8-bits for ID3
    -7-bits for VCOM adjustment
  • Wide Supply Voltage Range
    -I/O Voltage (VDDI to DGND): 1.65V~VDD
    (VDDI <=VDD)
    -Analog Voltage (VDD to AGND): 2.6V~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): -2.4V to 0.0V
    -Gate driver HIGH level (VGH to AGND): +10.0V to +15V
    -Gate driver LOW level (VGL to AGND): -12.4V to -7.5V
  • Operating Temperature: -30 J to +85 J