PCA21125 Demo Board


Block Diagram

PCA21125 Demo Board

PCA21125 Block Diagram

Supported Devices

Analog and Mixed Signal

RTCs with SPI


Key Features

  • AEC Q100 compliant for automotive applications
  • Provides year, month, day, weekday, hours, minutes and seconds based on 32.768 kHz quartz crystal
  • Integrated oscillator capacitor
  • Internal Power-On Reset (POR)
  • Open-drain interrupt pin


  • 4-line SPI-bus with separate, but combinable data input and output
  • Serial interface at Vᴰᴰ = 1.6 V to 5.5 V
  • 1 second or 1-minute interrupt output

Power Management

  • Clock operating voltage: 1.3 V to 5.5 V
  • Low supply current: typical 0.8 μA at Tᵃᵐᵇ = 25 °C


  • Freely programmable timer with interrupt capability
  • Freely programmable alarm function with interrupt capability

Buy Options

  • $42.09 USD
  • For a quantity of 1
    • Availability: Pending stock
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Quick reference to our documentation types.

1 documents

Design Resources

Design Files

1 design file


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