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ST7568 Fiches technique(PDF) 1 Page - Sitronix Technology Co., Ltd. |
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ST7568 Fiches technique(HTML) 1 Page - Sitronix Technology Co., Ltd. |
1 / 73 page Sitronix ST7568 68 x 102 Dot Matrix LCD Controller/Driver Ver 2.2 1/73 2008/01/04 1. INTERODUCTION The ST7568 is a driver & controller LSI for 4-level gray scale graphic dot-matrix liquid crystal display systems. It contains 102 segment and 68 common driver circuits. This chip is connected directly to a microprocessor, accepts. 4-line serial interface(SPI) or 8-bit parallel interface or IIC serial interface, display data can stores in an on-chip display data RAM of 68 x 102 x 2 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. 2. FEATURES Single chip LCD controller/driver for 4 GRAY SCALE STN LCD 4-level (White, Light Gray, Dark Gray, Black) Gray Scale Display with PWM and FRC Methods DDRAM data [2n: 2n+1] 00 01 10 11 Gray scale White Light gray Dark gray Dark (Accessible column address=0,1,2 …99,100,101) Driver Output Circuits 102 segment outputs / 68 common outputs On-chip Display Data ram - Capacity: 68X102X2=13,872 bits Microprocessor Interface - 8-bit parallel bi-directional interface with 6800-series or 8080-series - 4-line SPI (serial peripheral interface) available (only write operation) - IIC serial interface (only write operation) On-chip Low Power Analog Circuit - Generation of LCD supply voltage (externally Vout voltage supply is possible) - Generation of intermediate LCD bias voltages - Oscillator requires no external components (external clock also possible) - Voltage converter (x2, x3, x4, x5) - Voltage regulator - Voltage follower - On-chip electronic contrast control function (128 steps) External RESB (reset) pin Supply Voltage Range - Digital (VDD –VSS): 1.8V to 3.3V - Analog (VDD2-VSS2): 2.4 to 3.3V Temperature range: -30 to +85 degree ST7568 6800 , 8080 , 4-Line Interface (without IIC interface) ST7568i IIC interface Sitronix Technology Corp. reserves the right to change the contents in this document without prior notice. |
Numéro de pièce similaire - ST7568 |
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Description similaire - ST7568 |
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