描述 Description

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.
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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.
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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.

特性 Features

·128x64/80 Graphic Display with a Icon Line
·Programmable Multiplex ratio [16Mux - 65Mux/81Mux] (Partial Display)
·Single Supply Operation, 1.8 V - 3.0V
·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