PCF1179C
4-digit duplex LCD car clock
Rev.
3 — 12 February 2015
Product data sheet
1.
General description
The PCF1179C is a single chip, 4.
19 MHz car clock circuit providing hours, minutes, and seconds functions.
It is designed to drive a 4-digit duplex liquid crystal display (LCD).
Two external single-pole, single-throw push buttons accomplish all time setting functions.
Time calibration and voltage
regulator are electrically programmable via an on-chip EEPROM.
The circuit is battery-operated via an internal voltage
regulator and an external resistor.
2.
Features and benefits
Internal voltage
regulator is electrically programmable for various LCD voltages Time calibration is electri...