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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. GENERAL DESCRIPTION The PCA16xx series devices are CMOS integrated circuits specially suited for battery-operated, quartz-crystal-contr.
• 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 PCA1607U PCA1608U PCA1611U PCA1621U/7 PCA1621U/10 PCA1622U PCA1623U/7 PCA1624.
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