深圳市中立信电子科技有限公司

PCF8545ATT/AJ

LCD 驱动器 Universal LCD driver for multiplex rates up to 1:8

General description

The PCF8545ATT/AJ PCF8545 is a peripheral device which interfaces to almost any Liquid Crystal Display (LCD)1 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 and benefits PCF8545ATT/AJ

 Single-chip 320 elements LCD controller and driver

 Wide range for digital power supply: from 1.8 V to 5.5 V

 LCD supply range from 2.5 V up to 5.5 V

 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

 400 kHz I2C-bus interface (PCF8545A)

 5 MHz SPI-bus interface (PCF8545B)

Applications PCF8545ATT/AJ

 Industrial and consumer products