Advance Information

240RGB x 320 TFT LCD Controller Driver
Integrated Power Circuit, Gate and Source Driver with built-in RAM

SSD1289 is an all in one TFT LCD Controller Driver that integrated the RAM, power circuits, gate driver and source driver into single chip. It can drive up to 262k color amorphous TFT panel with resolution of 240 RGB x 320.

It also integrated the controller function and consists of up to 172,800 bytes (240 x 320 x 18 / 8) Graphic Display Data RAM (GDDRAM) such that it interfaced with common MCU through 8-/9-/16-/18-bits 6800-series / 8080-series compatible parallel interface or serial interface and stored the data in the GDDRAM. Auxiliary 18-/16-bits video interface (VSYNC, HSYNC, DOTCLK, DEN) are integrated into SSD1289 for animation image display.

SSD1289 embeds DC-DC Converter and Voltage generator to provide all necessary voltage required by the driver with minimum external components. A Common Voltage Generation Circuit is included to drive the TFT-display counter electrode. An Integrated Gamma Control Circuit is also included that can be adjusted by software commands to provide maximum flexibility and optimal display quality.

SSD1289 can be operated down to 1.4V and provide different power save modes. It is suitable for any portable battery-driven applications requiring long operation period with compact size.

• 240RGB x 320 single chip controller driver IC for 262k color amorphous TFT LCD

• Power Supply: V_DDEXT = 1.4V – 3.6V (Internal Logic)
                       V_DDIO = 1.4V – 3.6V (I/O interface)
                       V_CI = 2.5V - 3.6V (power supply for internal analog circuit)

• Output Voltages

  • Gate Driver:

    • VGH-GND = 9V ~ 15V

    • VGL-GND = -7 ~ -15V

    • VGH-VGL = 30Vp-p

  • Source Driver:

    • V0 - V63 = 0 - 5V

    • Typical Source Output Voltage variation: ±10 mV

  • VCOM drive:

    • VCOMH = 3.0V ~ 5.0V

    • VCOML = -2.0V ~ -3.0V

    • VCOMHA = 5.5V

• System Interface

  • High-speed interface by 8-/9-/16-/18-bit 6800-series / 8080-series parallel ports

  • Serial Peripheral Interface (SPI)

  • Moving picture display interface

  • 6-/16-/18-bit RGB interface (DEN, DOTCLK, HSYNC, VSYNC, DB17-0)

  • VSYNC interface (system interface + VSYNC)

  • WSYNC interface (system interface + WSYNC)

• Support low power consumption:

  • Low voltage supply

  • Low current sleep mode

  • 8-color display mode for power saving

  • Charge sharing function for step-up circuits

• High-speed RAM addressing functions

  • RAM write synchronization function

  • Window address function

  • Display by RAM data and generic data selectively and simultaneously

  • Vertical scrolling function

  • Picture in Picture mode

  • Partial display mode

• Internal power supply circuit

  • Voltage generator

  • DC-DC converter up to 6x/-6x

• Built-in internal oscillator

• Internal GDDRAM capacity: 172800Byte

• Support Frame and Line inversion AC drive

• TFT storage capacitance: Cs on common and Cs on gate

• Support source and gate scan direction control

• Programmable gamma correction curve

• 4 Preset gamma correction curve

• Built-in Non Volatile Memory for VCOM calibration Display Size: 240 RGB x 320

• Support flexible arrangement of gate circuits on both sides of the glass substrate