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Home » NEWEST Products » New by Manufacturer » NXP Semiconductors » PCF8545 Universal LCD Drivers - NXP
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NXP PCF8545 Universal LCD Drivers

NXP PCF8545 Universal LCD Drivers

NXP's PCF8545 Universal LCD Drivers are a peripheral device which interfaces to almost any Liquid Crystal Display (LCD) with low multiplex rates. It generates the drive signals for any multiplexed LCD containing up to eight backplanes, and up to 320 elements. The PCF8545 is compatible with most microcontrollers and communicates via the two-line bidirectional I2C-bus (PCF8545A) or a three line unidirectional SPI-bus (PCF8545B). Communication overheads are minimized using a display RAM with auto-incremented addressing.

Features
  • Single-chip 320 elements LCD controller and driver
  • Wide range for digital power supply: from 1.8V to 5.5V
  • LCD supply range from 2.5V up to 5.5V
  • LCD and logic supplies may be separated
  • Low power consumption
  • Selectable backplane drive configuration: 4, 6, or 8 backplane multiplexing
  • Selectable display bias configuration
  • 320-bit RAM for display data storage
  • 400kHz I2C-bus interface (PCF8545A)
  • 5MHz SPI-bus interface (PCF8545B)

  • Programmable frame frequency in the range of 60Hz to 300Hz in steps of 10Hz; factory calibrated
  • 320 segments driven allowing:
    • up to 40 7-segment alphanumeric characters
    • up to 20 14-segment alphanumeric characters
    • any graphics of up to 320 elements
  • Manufactured in silicon gate CMOS process

Applications
  • Industrial and consumer products
 
  • NXP Semiconductors