Wafer and Die Form Factor of PCF8583

Block Diagram

Block diagram: PCF8564ACX9, PCF8564AU


  • Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
  • Wide clock operating voltage: 1.0 V to 5.5 V
  • Low back-up current typical 250 nA at 3.0 V and 25 ℃
  • 400 kHz two-wire I²C interface (1.8 V to 5.5 V)
  • Low-voltage detector
  • Alarm and timer functions
  • Two integrated oscillator capacitors
  • Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz)
  • Internal Power-On Reset (POR)
  • I²C target address: read A3h, write A2h

Part numbers include: PCF8564AU, PCF8564AUG.


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