[Solomon Systech Limited.]

LCD Segment / Common Driver with Controller

CMOS

SSD1820A/21 is a single-chip CMOS LCD driver with controller for a liquid crystal dot-matrix graphic display system. SSD1820A consists of 194 high voltage driving output pins for driving 128 Segments, 64 Commons and 2 icon driving Commons, while SSD1821 consists of 210 high voltage driving output pins for driving 128 Segments, 80 Commons and 2 icon driving Commons.

SSD1820A/21 displays data directly from its internal 128x65/128X81 bits Graphic Display Data RAM (GDDRAM). Data/Commands are sent from general MCU through a hardware selectable 6800-/8080-series compatible Parallel Interface or 3/4 wires Serial Peripheral Interface.

SSD1820A/21 embeds a DC-DC Converter, a LCD Voltage Regulator, an On-Chip Bias Divider and an On-Chip Oscillator which reduce the number of external components. With the special design on minimizing power consumption and die/package layout, SSD1820A/21 is suitable for any portable battery-driven applications requiring a long operation period and a compact size.

• 128 x 64/80 Graphic Display with a Icon Line

• Programmable Multiplex ratio [16Mux - 65Mux/81Mux] (Partial Display)

• Single Supply Operation, 1.8 V - 3.3V

• Low Current Sleep Mode(<1.0uA)

• On-Chip Voltage Generator / External Power Supply

• Software selectable 2X / 3X / 4X / 5X / 6X On-Chip DC-DC Converter

• On-Chip Oscillator

• Software Selectable On-Chip Bias Dividers

• Programmable 1/4, 1/5, 1/6, 1/7, 1/8, 1/9 and 1/10 bias ratio

• Maximum +15.0V LCD Driving Output Voltage

• Hardware pin selectable for 8-bit 6800-series Parallel Interface, 8-bit 8080-series Parallel Interface, 3-wire Serial Peripheral Interface or 4-wire Serial Peripheral Interface

• On-Chip 128 x 65/81 Graphic Display Data RAM

• Re-mapping of Row and Column Drivers

• Vertical Scrolling

• Display Offset Control

• 64 Levels Internal Contrast Control

• External Contrast Control

• Maximum 17MHz SPI or 15MHz PPI operation

• Selectable LCD Driving Voltage Temperature Coefficients (2 settings)

• Available in Gold Bump Die and Standard TAB (Tape Automated Bonding) Package