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PCF1178C - 4-digit duplex LCD car clock

General Description

The PCF1178C is a single chip, 4.19 MHz CMOS car clock circuit providing hours, minutes and seconds functions.

It is designed to drive a 4-digit duplex liquid crystal display (LCD).

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 good contrast.
  • 4.19 MHz oscillator.
  • 12-hour or 24-hour mode.
  • Operating ambient temperature:.
  • 40 to +85 °C.
  • 28-lead plastic SMD (SO28).
  • 1 Hz set mode.

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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.

View original datasheet text
INTEGRATED CIRCUITS DATA SHEET PCF1178C 4-digit duplex LCD car clock Product specification Supersedes data of September 1993 File under Integrated Circuits, IC16 1997 Apr 16 Philips Semiconductors Product specification 4-digit duplex LCD car clock 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 good contrast • 4.19 MHz oscillator • 12-hour or 24-hour mode • Operating ambient temperature: −40 to +85 °C • 28-lead plastic SMD (SO28) • 1 Hz set mode. ORDERING INFORMATION PACKAGE TYPE NUMBER NAME PCF1178CT PCF1178CU PCF1178CU/10 PCF1178CU/5 Notes 1. See Fig.1 and Chapter “Package outline” for pin layout and package details. 2.