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PCA1628 - CMOS

General Description

PCA16xx series Stop function for accurate timing Power-on reset for fast testing

Various test modes for testing the mechanical parts of the watch and the IC.

Key Features

  • 32 kHz oscillator, amplitude regulated with excellent frequency stability.
  • High immunity of the oscillator to leakage currents.
  • Time calibration electrically programmable and reprogrammable (via EEPROM).
  • A quartz crystal is the only external component required.
  • Very low current consumption; typically 170 nA.
  • Detector for silver-oxide or lithium battery voltage levels.
  • Indication for battery end-of-life.

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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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INTEGRATED CIRCUITS DATA SHEET PCA16xx series 32 kHz watch circuits with EEPROM Product specification Supersedes data of 1997 Apr 21 File under Integrated Circuits, IC16 1997 Dec 12 Philips Semiconductors Product specification 32 kHz watch circuits with EEPROM FEATURES • 32 kHz oscillator, amplitude regulated with excellent frequency stability • High immunity of the oscillator to leakage currents • Time calibration electrically programmable and reprogrammable (via EEPROM) • A quartz crystal is the only external component required • Very low current consumption; typically 170 nA • Detector for silver-oxide or lithium battery voltage levels • Indication for battery end-of-life ORDERING INFORMATION TYPE NUMBER PCA1601U/10 PCA1602T PCA1603U/7 PCA1604U PCA1604U/10 PCA1605U/7 PCA1606U/10 PCA1