The low-voltage serial-peripheral interface (SPI™)DS1390/DS1391/DS1394 and the low-voltage 3-wireDS1392/DS1393 real-time clocks (RTCs) are clocks/calendarsthat provide hundredths of a second, seconds,minutes, hours, day, date, month, and year information.The date at the end of the month is automaticallyadjusted for months with fewer than 31 days, includingcorrections for leap year.
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