32 × 4 Universal LCD Driver for Low Multiplex Rates

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Product Details

Block Diagram

PCF85162 Block Diagram

PCF85162 Block Diagram


  • Single chip LCD controller and driver
  • Selectable backplane drive configuration: static, 2, 3, or 4 backplane multiplexing
  • Selectable display bias configuration: static, 1/2, or 1/3
  • Internal LCD bias generation with voltage-follower buffers
  • 32 segment drives:
    • Up to 16 7-segment numeric characters
    • Up to 8 14-segment alphanumeric characters
    • Any graphics of up to 128 elements
  • 32 × 4-bit RAM for display data storage
  • Display memory bank switching in static and duplex drive modes
  • Versatile blinking modes
  • Independent supplies possible for LCD and logic voltages
  • Wide power supply range: from 1.8 V to 5.5 V
  • Wide logic LCD supply range:
    • From 2.5 V for low-threshold LCDs
    • Up to 6.5 V for guest-host LCDs and high-threshold twisted nematic LCDs
  • Low power consumption
  • 400 kHz I²C-bus interface
  • No external components required
  • Manufactured in silicon gate CMOS process

Part numbers include: PCF85162T.


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