RTC Module Draws A Mere 40 nA

Micro Crystal’s RV-3028-C7 real-time clock module sets a benchmark for lowest power consumption: 40 nA at a supply voltage of 3V. Accuracy is ±1 ppm at room temperature, eliminating the need for calibration during manufacturing. The module measures 3.5 mm x 1.5 mm x 0.8 mm and combines the quartz crystal with the RTC circuit. It also integrates a battery-back-up switch. Features include:

  • Industries lowest current consumption of only 40 nA at 3 V supply
  • Factory calibrated time reference ±1.0 ppm at 25°C
  • Integrated 32.768 kHz Quartz Crystal
  • Battery back-up switch with trickle charge ideal also for MLCC and Supercap
  • Wide voltage range 1.2 to 5.5V
  • Ultra-miniature ceramic SMD package: 3.2 x 1.5 x 0.8 mm
  • Provides year, month, date, weekday, hours, minutes and seconds
  • 32-bit Unix time counter e.g. for security code calculations
  • I²C interface 400 kHz  

For more insights, checkout the RV-3028-C7datasheet collection

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