Universal 60 X 4 LCD Segment Driver for Multiplex Rates Up to 1-4

PCF85134HL

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Product Details

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Block Diagram

PCF85134 Block Diagram

PCF85134 Block Diagram

Features

  • Single-chip LCD controller and driver
  • Selectable backplane drive configurations: static, 2, 3, or 4 backplane multiplexing
  • 60 segment outputs allowing to drive:
    • 30 7-segment alphanumeric characters
    • 15 14-segment alphanumeric characters
    • Any graphics of up to 240 elements
  • Cascading supported for larger applications
  • 60 x 4-bit display data storage RAM
  • Wide LCD supply range: from 2.5 V for low threshold LCDs up to 6.5 V for high threshold twisted nematic LCDs
  • Internal LCD bias generation with voltage follower buffers
  • Selectable display bias configurations: static, 1⁄2, or 1⁄3
  • Wide logic power supply range: from 1.8 V to 5.5 V
  • LCD and logic supplies may be separated
  • Low power consumption
  • 400 kHz I²C-bus interface
  • No external components required
  • Display memory bank switching in static and duplex drive mode
  • Versatile blinking modes
  • Silicon gate CMOS process

Design Resources

Documentation

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