Introduction
Advance Information
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.
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Features
- 128×64/80 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
Ordering Information
| Ordering Part No. | SSD1820AZ |
| Package | Gold Bump Die |
| Pad Pitch/Outer Lead Pitch | 64.8µm |
| Ordering Part No. | SSD1821Z |
| Package | Gold Bump Die |
| Pad Pitch/Outer Lead Pitch | 64.8µm |
| Ordering Part No. | SSD1820ATR1 |
| Package | TAB |
| Pad Pitch/Outer Lead Pitch | 0.15mm |
| Ordering Part No. | SSD1821TR1 |
| Package | TAB |
| Pad Pitch/Outer Lead Pitch | 0.14mm |
| Ordering Part No. | Package | Pad Pitch/Outer Lead Pitch |
|---|---|---|
| SSD1820AZ | Gold Bump Die | 64.8µm |
| SSD1821Z | Gold Bump Die | 64.8µm |
| SSD1820ATR1 | TAB | 0.15mm |
| SSD1821TR1 | TAB | 0.14mm |