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ST7549T - 68 x 102 Dot Matrix LCD Controller/Driver

Key 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-l.

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Datasheet Details

Part number ST7549T
Manufacturer Sitronix Technology
File Size 1.03 MB
Description 68 x 102 Dot Matrix LCD Controller/Driver
Datasheet download datasheet ST7549T Datasheet

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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ST Sitronix ST7549T 68 x 102 Dot Matrix LCD Controller/Driver 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.