SSD1789A Solomon Systech, SSD1789A Datasheet - Page 5

• Manufacturer Part Number: SSD1789A
• Description: CSTN LCD Driver
• Manufacturer: Solomon Systech

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SSD1789A is a single-chip CMOS color STN LCD driver with controller for dot-matrix graphic liquid crystal display system.
SSD1789A consists of 528 high voltage driving output pins for driving maximum 132 RGB Segments, 132 Commons
CSTN panel.
SSD1789A consists of 132 RGB x 132 x 18 bits Graphic Display Data RAM (GDDRAM). Data/Commands are sent from
common MCU through 16-bit/8-bit 6800-series / 8080-series compatible Parallel Interface or 3-wires / 4-wires Serial
Peripheral Interface by pins selection.
SSD1789A 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, SSD1789A is suitable for any portable battery-driven applications requiring long operation period with compact
size.
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SSD1789A Series Rev 1.0
Power Supply:
LCD Driving Output Voltage: 16V max
Low Current Sleep Mode
Maximum display size: 132 RGB columns by 132 rows.
Display color support: 262K/65K/4K/256 color selectable, with preset/programmable color look up table (CLUT)
16-bit/8-bit 6800-series Parallel Interface, 16-bit/8-bit 8080-series Parallel Interface, 3-wires Serial Peripheral
Interface and 4-wires Serial Peripheral Interface
On-Chip (132 RGB) X (132) x 18 = 313632 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
4X / 5X / 6X/ 7X 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: 1/32 to 1 /132
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.
FRC or PWM Driving Scheme
Interlace/progressive LCD common pins sequence selectable
GENERAL DESCRIPTION
FEATURES
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V
V
V
DDIO
DD
CI
P 5/69
= V
= 2.4V – 3.6V
= 1.2V – V
DD
– 3.6V
Jul 2004
DD
Solomon Systech
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