DS1339B EVALUATION KIT AVAILABLE Low-Current, I2C, Serial Real-Time Clock for High-ESR Crystals General Description The DS1339B serial real-time clock (RTC) is a lowpower clock/date device with two programmable timeof-day alarms and a programmable square-wave output.
Address and data are transferred serially through an I2C bus.
The clock/date provides seconds, minutes, hours, day, date, month, and year information.
The date at the end of the month is automatically adjusted for months with fewer than 31 days, including corrections for leap year.
The clock operates in either the 24-hour or 12-hour format with AM/PM indicator.
The device has a built-in power-sense circuit that detects power f...

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