General description

The PCF21xxC family are single-chip, silicon gate CMOS LCD driver circuits. A 3-line bus

(C-bus) structure enables serial data transfer with microcontrollers.

Features and benefits

- Supply voltage 2.25 V to 6.0 V

- Low current consumption

- Serial data input

- C-bus control

- One-point built-in oscillator

- Stand-alone or expanded system

- Power-on reset clear

- LCD segments: 40 (PCF2100C), 64 (PCF2111C) and 32 (PCF2112C)

- Multiplex rate: 1:2 (PCF2100C and PCF2111C) and 1:1 (PCF2112C)

- Word length: 22 bits (PCF2100C) and 34 bits (PCF2111C and PCF2112C)