Sitronix Technology ST7577
ST7577 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. This chip is connected directly to a microprocessor, accepts 3-line, 4-line serial peripheral interface (SPI) or 8-bit parallel interface, display data can stores in an on-chip Display Data RAM (DDRAM) of 132 x 39 bits. It performs Display Data RAM read/write operation with no external operating clock to minimize power consumption.| Part No. | ST7577 |
|---|---|
| Datasheet | ST7577 Download |
| Manufacturer |  Sitronix Technology |
| Description | Dot Matrix LCD Controller/Driver |
| Buy | Stock & Price |
FEATURES
Single-chip LCD controller & driver Driver Output Circuits l l l l l l l 132 segments / 39 commons (DTY=”L”) 132 segments / 12 commons (DTY=”H”) Capacity: 132X39=5148 bits 8-bit parallel bi-directional interface with 6800-series or 8080-series 4-line SPI (serial peripheral interface) available (only write operation) 3-line SPI (serial peripheral interface) available Embedded Boosters with voltage regulation function that generates high-accuracy voltage (externally V0I / XV0I voltage supply is also supported). On-chip Low Power Analog Circuit l l l l Voltage regulation temperature gradient -0.07%/°C Programmable Booster stages: X3,X4. On-chip electronic contrast control function Built-in Voltage Follower generates LCD bias voltages (1/4 to 1/7). Built-in oscillator l Built-in oscillator requires no external components (external clock input is also supported) External RESB (reset) pin Supply voltage range l l VDD - VSS (Digital): 2.4 to 3.3V (typical); VDD2 - VSS (Analog): 2.4 to 3.3V (typical).
