PCF8553 40x4 LCD Segment Driver Demonstration Board

PCF8553 is an ultra low-power LCD segment driver with 4 backplane- and 40 segment-driver outputs, with either an I2C- or an SPI-bus interface. It comprises an internal oscillator, bias generation, instruction decoding, and display controller.

• 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 buffers
• 40 segment drives:
  • Up to 20 7-segment numeric characters
  • Up to 10 14-segment alphanumeric characters
  • Any graphics of up to 160 segments/elements
• Auto-incrementing display data and instruction loading
• Versatile blinking modes
• Independent supplies of VLCD and VDD
• Power supply ranges:
  • 1.8 V to 5.5 V for VLCD
  • 1.8 V to 5.5 V for VDD
• Ultra low-power consumption
• 400 kHz I2C-bus interface
• 5 MHz SPI-bus interface
• Internally generated or externally supplied clock signal