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AB1813

Part Number	AB1813
Manufacturer	Abracon
Description	Real-Time Clock
Published	Jan 7, 2015
Detailed Description	AB08XX Real-Time Clock Family Date of Issue: November 7, 2013 3.0 x 3.0 mm Page 1 of 34 Abracon Drawing #453567 Rev...
Datasheet	AB1813 PDF File

Overview

AB08XX Real-Time Clock Family Date of Issue: November 7, 2013 3.
0 x 3.
0 mm Page 1 of 34 Abracon Drawing #453567 Revision : A Features • Ultra-low supply current (all at 3V): - 14 nA with RC oscillator - 22 nA with RC oscillator and Autocalibration - 55 nA with crystal oscillator • Baseline timekeeping features: - 32.
768 kHz crystal oscillator with integrated load capacitor/resistor - Counters for hundredths, seconds, minutes, hours, date, month, year, century, and weekday - Alarm capability on all counters - Programmable output clock generation (32.
768 kHz to 1 year) - Countdown timer with repeat function - Automatic leap year calculation • Advanced timekeeping features: - Integrated power optimized RC oscillator - Advanced crystal calibration to ± 2 ppm - Advanced RC calibration to ± 16 ppm - Automatic calibration of RC oscillator to crystal oscillator - Watchdog timer with hardware reset - Up to 256 bytes of general purpose RAM • Power management features: - Automatic switchov...

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