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Real-Time Clock



Provide time of day and support features such as Alarm, Periodic Interrupt, Square Wave, RESET, or watchdog timer.

DATA SHEETS
Part Number Description Key Advantages
DS1341, DS1342 Low-Current I²C RTCs for High-ESR Crystals

Compatible with High-ESR Crystals While Offering the Lowest Possible Current
DS1339, DS1339C, DS1339U I²C Serial Real-Time Clock

RTC Provides System Flexibility with Multiple Programmable Features



Key Specifications:

Timekeeping & Real-Time Clocks
Part Number Date/ Time Format Interface VSUPPLY
(V)
Time Keeping Current
(nA)
CL
(pF)
Memory Type Time of Day Alarms
hh = sec/100 typ
DS1341  YY-MM-DD/ HH:MM:SS I2C
1.8
5.5
220 6 None 2
DS1342 
1.8
5.5
250 12.5
DS1339 
2
3
3.3
5
400 6
See All Timekeeping & Real-Time Clocks (87)





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