ST7579
68 x 102 Dot Matrix LCD Controller/Driver
Product Description
ST7579 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 102-segment and 67-common with 1-icon-common driver circuits. This chip is connected directly to a microprocessor which accepts 3-line or 4-line serial peripheral interface (SPI) or 8-bit parallel interface. Display data stores in an on-chip display data RAM
(DDRAM) of 68 x 102 bits. It performs display data RAM read/write operation with no external operating clock to minimize power consumption. In addition, because it contains power supply circuits to drive liquid crystal, it is possible to make a display system with the fewest components.
Features - Single-chip LCD Controller & Driver
- Driver Output Circuits
- 102-segment / 67-common+1-icon-common (1/68 duty)
- 102-segment / 32-common+1-icon-common (1/33 duty)
- 102-segment / 16-common+1-icon-common (1/17 duty)
(1/33 duty and 1/17 duty are under partial screen mode)
- On-chip Display Data Ram
- Capacity: 68X102=6,936 bits
- Microprocessor Interface
- 8-bit parallel bi-directional interface supports
- 6800-series or 8080-series MPU
- 3-line & 4-line SPI (serial peripheral interface) are available (write only)
- External RESB (reset) pin
- Built-in oscillation circuit
- Oscillator requires no external component
- Low Power Consumption Analog Circuit
- Voltage booster (X3, X4, X5)
- Voltage regulator generates LCD operating voltage
(Temperature Gradient: -0.11%/¢XC)
- Electronic contrast control (255 steps)
- Voltage follower generates LCD bias voltages
(1/4 ~ 1/11 bias)
- Wide supply voltage range
- VDD1 ¡V VSS1 : 1.8 ~ 3.3V
- VDD2 ¡V VSS2 : 2.4 ~ 3.3V
- Display supply voltage range
- Application Vop range : 4V ~ 9.5V
- Programmable voltage (Vop) : 10.56V (max)
- Temperature range: -30 to +85 ¢XC
- Support LCD Module Size up to 1.8¡¨
Downloads
| File |
Size |
Version |
Creation Date |
Datasheet | 1410K | V1.3a | 2008/11/10 | |
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