Universal LCD Driver for Low Multiplex Rates

  • Not Recommended for New Designs
  • This page contains information on a product that is not recommended for new designs.

Product Details

Block Diagram


PCF8566 Block Diagram


Key Features

  • Single-chip LCD controller/driver
  • 24 segment drives
  • Up to twelve 7-segment numeric characters including decimal pointer
  • Up to six 14-segment alphanumeric characters
  • Any graphics of up to 96 elements
  • Versatile blinking modes
  • No external components required (even in multiple device applications)
  • Selectable backplane drive configuration: static or 2, 3, 4 backplane multiplexing
  • Selectable display bias configuration: static, 1/2 or 1/3
  • Internal LCD bias generation with voltage-follower buffers
  • 24 x 4-bit RAM for display data storage
  • Auto-incremented display data loading across device subaddress boundaries
  • Display memory bank switching in static and duplex drive modes
  • LCD and logic supplies may be separated
  • 2.5 V to 6 V power supply range
  • Low power consumption
  • Power-saving mode for extremely low power consumption in battery-operated and telephone applications
  • I2C-bus interface
  • TTL and CMOS compatible
  • Compatible with any 4, 8 or 16-bit microprocessor or microcontroller
  • May be cascaded for large LCD applications (up to 1536 segments possible)
  • Cascadable with 40-segment LCD driver PCF8576C
  • Optimized pinning for plane wiring in both and multiple PCF8566 applications
  • Space-saving 40-lead plastic very small outline package (VSO40; SOT158-1)
  • Manufactured in silicon gate CMOS process

Part numbers include: PCF8566T.


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