Real Time Clocks

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	Mfr Part #	Quantity Available	Price	Series	Package	Product Status	DigiKey Programmable	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Grade	Qualification	Package / Case	Supplier Device Package
	PCA85073ADP/Q900Z IC RTC CLK/CALENDAR I2C 8TSSOP NXP USA Inc.	4,989 In Stock	1 : £1.03000 Cut Tape (CT) 2,500 : £0.50325 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C	1.8V ~ 5.5V	-	-	-40°C ~ 105°C (TA)	Surface Mount	Automotive	AEC-Q100	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	8-TSSOP
	MAX31341CETB+T IC RTC CLK/CALENDAR I2C 10TDFN Analog Devices Inc./Maxim Integrated	11,461 In Stock 15,000 Factory	1 : £1.70000 Cut Tape (CT) 2,500 : £0.87780 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, RAM, Square Wave Output, Trickle Charger	64B	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C	1.6V ~ 3.6V	1.6V ~ 3.6V	0.33µA ~ 0.39µA @ 1.6V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	10-WFDFN Exposed Pad	10-TDFN (3x3)

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Real Time Clocks (RTCs) provide time and/or date information in almost any electronic device which needs to keep accurate time. The clock types are binary counter, clock/calendar/supervisor, elapsed time counter, phantom time chip, portable system controller, temperature recorder, time event recorder, and timer clock peripheral. They contain memory sizes ranging from 2 B to 2 MB and have interface options of I2C, Parallel, Serial, SPI, 1-Wire, 2-Wire, 3-Wire, and 4-Wire.