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.