Advance Information

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

SSD1298 is an all in one TFT LCD Controller Driver that integrated the RAM, power circuits, gate driver and source driver into a single chip. It can drive up to 262k color amorsphous TFT panel with resolution of 240 RGB x 320.

It also integrated the controller function and consists of 172,800 bytes (240 x 320 x 18 / 8) Graphic Display Data RAM (GDDRAM) such that it interfaced with common MPU through 8-/9-/16-/18-bit 6800-series / 8080-series compatible parallel interface or serial peripheral interface and stored the data in the GDDRAM. Auxiliary 18-/16-/6- bit video interface (VSYNC, HSYNC, DOTCLK, OE) are integrated into SSD1298 for animation image display.

SSD1298 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.

SSD1298 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 and compact size.

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

• Power Supply: 

  • V_DDIO = 1.4V – 3.6V (I/O Interface) 

  • V_CIR = 2.5V – 3.6V (Regulator power supply for logic circuit)

  • V_CI = 2.5V - 3.6V (power supply for internal analog circuit)

• Output Voltages

  • Gate Driver:

    • VGH-GND = 9V ~ 18V

    • VGL-GND = -6 ~ -15V

    • VGH-VGL = 30Vp-p

  • Source Driver:

    • Maximum of VLCD63= 6V 

    • Typical Source Output Voltage variation: ±10 mV

  • VCOM drive:

    • VCOMH = 3.0V ~ 5.0V

    • VCOML = -1.0V ~ -3.0V

    • Maximum of VCOMA = 6V

• System Interface

  • 16-/18-bit RGB interface (OE, DOTCLK, HSYNC, VSYNC, DB[17-0])

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

  • Serial Peripheral Interface (SPI)

  • 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

  • Vertical scrolling function

  • Partial display mode

• Internal power supply circuit

  • Voltage generator

  • DC-DC converter up to 6x/-5x

• Built-in internal oscillator

• Internal GDDRAM capacity: 172800Byte

• Support Frame and Line inversion AC drive

• TFT storage capacitance: Cs on common

• Support source and gate scan direction control

• Programmable 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