Advance Information

104RGB x 80 + 1 Icon CSTN
LCD Segment / Common COLOR Driver with Controller

SSD1774 is a single-chip CMOS color STN LCD driver with controller for dot-matrix graphic liquid crystal display system. SSD1774 consists of 393 high voltage driving output pins for driving maximum 104 RGB Segments, 81 Commons CSTN panel. 

SSD1774 consists of 104 RGB x 81 x 16 bits Graphic Display Data RAM (GDDRAM). Data/Commands are sent from common MCU through 8-bit / 16-bit 6800-series / 8080-series compatible Parallel Interface or 3-wires / 4-wires Serial Peripheral Interface by pins selection.

SSD1774 embeds On-Chip Oscillator, DC-DC Converter, bias divider so as to reduce the number of external component. With the advanced design, low power consumption, stable LCD operating voltage and flexible die package layout, SSD1774 is suitable for any portable battery-driven applications requiring long operation period with compact size.

• Power Supply: V_DDIO = 1.65V – VDD
                        V_DD = 2.4V – 3.6V
                         V_CI = VDD - 3.6V

• LCD Driving Output Voltage: 13.5V max

• Low Current Sleep Mode

• Maximum display size: 104 RGB columns by 80 rows + icon

• Display colors support: 65K/4K/ 256 colors selection, with selectable gamma correction

• 8-bit / 16-bit 6800-series Parallel Interface, 8-bit / 16-bit 8080-series Parallel Interface, 3-wires Serial Peripheral Interface and 4-wires Serial Peripheral Interface

• On-Chip (104 RGB) X (81) x 16 = 134,784 bits Graphic Display Data RAM

• Programmable partial display function 

• Column Re-mapping and RAM Page scan direction control

• Software selection on Center Screen Scrolling, Top Screen Scrolling, Bottom Screen Scrolling and Whole Screen Scrolling 

• On-Chip Voltage Generator or External LCD Driving Power Supply Selectable 

• 3X / 4X / 5X / 6X On-Chip DC-DC Converter

• 64 Levels Internal Contrast Control 

• Programmable LCD Driving Voltage Temperature Compensation Coefficients 

• On-Chip Bias Divider 

• Programmable drive duty ratio: 1/8 to 1 /80

• On-Chip Oscillator 

• Non-Volatile Memory (OTP) for calibration 

• On-Chip 2-D Graphic Acceleration Engine featuring Line/Rectangle Drawing, Dim/Clear/Copy operation in Window mode. 

• 5bit PWM + 1 bit FRC Driving Scheme

• Interlace/progressive LCD common pins sequence selectable