Advance Information
LCD Segment/ Common Monochrome Driver with Controller




SSD1805 is a single-chip CMOS LCD driver with controller for dot-matrix graphic liquid crystal display system.  SSD1805 consists of 200 high-voltage driving output pins for driving maximum 132 Segments, 68 Commons / 132 Segments, 64 Commons and 1 icon-driving Common / 132 Segments, 54 commons and 1 icon-driving Common / 132 Segments, 32 Commons and 1 icon-driving Common.  SSD1805 can also be switched among 32, 54, 64 or 68 display multiplex ratios by hardware pin selection.


SSD1805 consists of 132 x 68 bits Graphic Display Data RAM (GDDRAM). Data/Commands are sent from common MCU through 8-bit 6800-series / 8080-series compatible Parallel Interface or 4-lines Serial Peripheral Interface by software program selections.


SSD1805 embeds a DC-DC Converter, On-Chip Oscillator and Bias Divider to reduce the number of external components. With the advance design, low power consumption, stable LCD operating voltage and flexible die package layout. SSD1805 is suitable for any portable battery-driven applications requiring long operation period with compact size.

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  • Single Supply: VDD= 1.8V – 3.6V

    VDDIO = 1.2V – VDD 

    VCI= VDD – 3.6V

  • LCD Driving Output Voltage: VLCD= +12.5V
  • Low Current Sleep Mode
  • Pin selectable 68/64/54/32 multiplex ratio configuration.  Maximum display size:

132 columns by 68 rows

132 columns by 64 rows with one icon line

132 columns by 54 rows with one icon line

132 columns by 32 rows with one icon line

  • 8-it 6800-series / 8088-series Parallel Interface, 4-lines Serial Peripheral Interface
  • On-Chip 132×68 = 8976 bits Graphic Display Data RAM
  • Column Re-mapping and RAM Page scan direction control
  • Vertical Scrolling by Common
  • On-Chip Voltage Generator or External LCD Driving Power Supply Selectable
  • Pin selectable 2X/3X/4X/5X On-Chip DC-DC Converter with internal flying capacitors
  • 64 Levels Internal Contrast Control
  • Programmable LCD Driving Voltage Temperature Compensation Coefficients
  • On-Chip Bias Divider with internal compensation capacitors (except VOUT)
  • Programmable multiples ratio: 1/9 to 1/68
  • Programmable bias ratio: 1/4, 1/5, 1/6, 1/7, 1/8, 1/9
  • Display Offset Control
  • Non-Volatile Memory (OTP) for calibration

Ordering Information

Ordering Part No. SSD1805Z
Package Gold Bumped Die
Pad Pitch/Outer Lead Pitch -
Ordering Part No. SSD1805TR1
Package TAB
Pad Pitch/Outer Lead Pitch -
Ordering Part No. SSD1805T1R1
Package TAB
Pad Pitch/Outer Lead Pitch -
Ordering Part No. Package Pad Pitch/Outer Lead Pitch
SSD1805Z Gold Bumped Die -
SSD1805TR1 TAB -
SSD1805T1R1 TAB -