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●SITRONIX
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●Introduction
●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 ofconnecting 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 ofthe integrated power supply circuits necessary to drive liquid crystal, it is possible to make a display system with fewer components.
●Features
●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°C to +85°C
