GENERAL DESCRIPTION

The PCF8801 is a peripheral device which interfaces a multiplexed Liquid Crystal Display (LCD) having two backplanes and up to 140 segments. It generates drive signals at a multiplex rate of 1 : 2 allowing seven 40-segment (5 x 8) characters to be driven.

FEATURES

• Single-chip LCD controller/driver

• Fixed backplane multiplexing at a rate of 1 : 2

• Internal LCD bias generation (0.5VDD)

• 140 segment outputs configured to drive seven 40-segment characters

• On-chip oscillator with one external resistor

• Wide power supply range (2.7 V up to 5.5 V)

• Low power consumption

• Compatible with most microprocessors/microcontrollers

• 1 MHz serial bus interface (280-bit shift register)

• Easily cascaded for large LCD applications (two cascade directions possible)

• Compatible with chip-on-glass technology

• Manufactured by silicon gate CMOS process.