GENERAL DESCRIPTION

The PCF8577C is a single chip, silicon gate CMOS circuit. It is designed to drive liquid crystal displays with up to 32 segments directly, or 64 segments in a duplex configuration.

FEATURES

• Direct/duplex drive modes with up to 32/64 LCD-segment drive capability per device

• Operating supply voltage: 2.5 to 6 V

• Low power consumption

• I2C-bus interface

• Optimized pinning for single plane wiring

• Single-pin built-in oscillator

• Auto-incremented loading across device subaddress boundaries

• Display memory switching in direct drive mode

• May be used as I2C-bus output expander

• System expansion up to 256 segments

• Power-on reset blanks display

• I2C-bus address: 0111 0100.