The PCF21xxC family are single-chip, silicon gate CMOS LCD driver circuits. A 3-line bus (CBUS) structure enables serial data transfer with microcontrollers.
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## Features
* Supply voltage 2.25 to 6.0 V
* Low current consumption
* Serial data input
* CBUS 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)
