产品特点 Features

• Single-chip LCD controller and driver
• 40 segment drives:
  • Up to twenty 7-segment numeric characters
  • Up to ten 14-segment alphanumeric characters
  • Any graphics of up to 160 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
• 40 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
• Wide logic LCD supply range:
  • From 2 V for low-threshold LCDs
  • Up to 6 V for guest-host LCDs and high-threshold twisted nematic LCDs
• Low power consumption
• May be cascaded for large LCD applications (up to 2560 segments possible)
• No external components
• Separate or combined LCD and logic supplies
• Optimized pinning for plane wiring in both and multiple PCF8576C applications
• Power-saving mode for extremely low power consumption in battery-operated and telephone applications

功能框图