Automotive Tiny Real-Time Clock/Calendar with Alarm Function and I2C-bus

  • Not Recommended for New Designs
  • This page contains information on a product that is not recommended for new designs.

Roll over image to zoom in

Product Details

Select a section:


System Features

  • AEC-Q100 grade 2 compliant for automotive applications
  • Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
  • Low current; typical 0.25 µA at VDD = 3.0 V and Tamb = 25 °C
  • Programmable clock output for peripheral devices (32.768 kHz, 16.384 kHz, 8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz)
  • Alarm function
  • Minute and half minute interrupt
  • Internal Power-On Reset (POR)
  • High-temperature operation range: 40 °C to +105 °C
  • Clock operating voltage: 0.9 V to 5.5 V
  • 400 kHz two-line I2C-bus interface (at VDD = 1.8 V to 5.5 V)
  • Selectable integrated oscillator load capacitors for CL = 7 pF or CL = 12.5 pF
  • Countdown timer
  • Oscillator stop detection function
  • Programmable offset register for frequency adjustment

Part numbers include: PCA85063ATT.


Quick reference to our documentation types.

3 documents

Design Resources

Select a section:


1 hardware offering


1 software file

Note: For better experience, software downloads are recommended on desktop.


What do you need help with?