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PCF1179C - 4-digit duplex LCD car clock

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.

Key Features

  • Internal voltage regulator is electrically programmable for various LCD voltages.
  • Time calibration is electrically programmable (no trimming capacitor required).
  • LCD voltage adjusts with temperature for a good contrast.
  • 4.19 MHz oscillator.
  • 12-hour or 24-hour mode.
  • Operating ambient temperature: 40 C to +85 C.
  • 28-lead plastic SMD (SO28).
  • 4 Hz set mode. 3. Ordering information Table 1. Ordering information Type number Package Name PCF1179CT SO28.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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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.