Real-Time Clock (RTC) and Calendar

NXP’s PCF8523 is a CMOS Real-Time Clock and calendar optimized for low power consumption. It provides time and calendar data based on a 32.768 kHz quartz crystal. The PCF8523 is well equipped with a backup battery switch-over circuit which detects power failures and automatically switches to battery supply during power failure.



Where Used?

  • Time keeping application
  • Battery powered devices
  • Metering

Why Used?

  • Low Power Consumption
  • Equipped with Backup Battery Switch-over circuit
  • Freely programmable timer and alarm with interrupt capability

Related Links:

Application Note – Handling bare die


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