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ST7548T Datasheet(PDF) 1 Page - Sitronix Technology Co., Ltd. |
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ST7548T Datasheet(HTML) 1 Page - Sitronix Technology Co., Ltd. |
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1 / 50 page  ST Sitronix ST7548T 66 x 102 Dot Matrix LCD Controller/Driver Ver 1.2 1/50 2006/03/16 1. INTRODUCTION The ST7548T is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 102 segment and 65 common with 1 ICON driver circuits. This chip is connected directly to a microprocessor, accepts 8-bit parallel interface、3-line or 4-line serial peripheral interface (SPI)、I 2C interface, display data can stores in an on-chip display data RAM of 66 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. 2. FEATURES Single-chip LCD controller & driver Driver Output Circuits 102 segment / 65 common + 1 ICON On-chip Display Data ram - Capacity: 66X102=6,732 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) - 3-line SPI (serial peripheral interface) available - I 2C (Inter-Integrated Circuit) Interface 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 (x4, x5) - Voltage regulator(temperature gradient -0.11%/ °C) - Voltage follower - On-chip electronic contrast control function (128 steps) External RESB (reset) pin Supply voltage range: - VDD1 - VSS : 1.7 to 3.3V - VDD2 - VSS : 2.4 to 3.3V - VOUTIN - VSS : 13.5V (max) Temperature range: -40 to +85 degree ST7548T-G2 6800 , 8080 , 4-Line , 3-Line interface (without I2C interface) ST7548Ti-G2 I2C interface |
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