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ST7549T 数据表(PDF) 1 Page - Sitronix Technology Co., Ltd. |
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ST7549T 数据表(HTML) 1 Page - Sitronix Technology Co., Ltd. |
1 / 52 page ST Sitronix ST7549T 68 x 102 Dot Matrix LCD Controller/Driver Ver 1.3 1/52 2005/12/06 1. INTRODUCTION The ST7549T is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 102 segment and 67 common with 1 ICON driver circuits. This chip is connected directly to a microprocessor, accepts 3-line or 4-line serial peripheral interface (SPI), I2C interface or 8-bit parallel interface, display data can stores in an on-chip display data RAM 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. 2. 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 n Capacity: 68X102=6,936 bits Microprocessor Interface n 8-bit parallel bi-directional interface with 6800-series or 8080-series n 4-line SPI (serial peripheral interface) available (only write operation) n 3-line SPI (serial peripheral interface) available n I2C (Inter-Integrated Circuit) Interface On-chip Low Power Analog Circuit n Generation of LCD supply voltage (externally VOUT voltage supply is possible) n Generation of intermediate LCD bias voltages n Oscillator without external components (external clock also possible) n Voltage Booster (X2,X3,X4,X5) n Voltage Regulator (temperature gradient -0.11%/°C) n Voltage Follower n On-chip electronic contrast control function (255 steps) External RESB (reset) pin Supply voltage range n VDD1 -VSS : 1.7 to 3.3V n VDD2 -VSS : 2.4 to 3.3V n VOUT -VSS : 13.5V (Max.) Temperature range: -30 to +85 degree Package Type: COG ST7549T-G2 6800, 8080, 4-Line, 3-Line interface (without I2C interface) ST7549Ti-G2 I2C interface |
类似零件编号 - ST7549T |
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类似说明 - ST7549T |
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