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DS1337 RTC I2C

Low power clock/calendar

The DS1337 serial real-time clock is a low-power clock/calendar with two programmable time-of-day alarms and a programmable square-wave output. Address and data are transferred serially through an I2C-bus.


  • Operation supply voltage: 1.8 to 5.5 V
  • I2C interface
  • Two Time-of-Day Alarms
  • Oscillator Stop Flag
  • Leap-Year Compensation Valid Up to 2100
  • Timekeeping current 32 kHz time base, @VCC = 1,8 V): typ. 425 nA
  • Load capacitance crystal: 6pF
    This product was added to our catalog on Friday 27 November, 2009.
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