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Real Time Clocks (RTC)

Analog Devices Inc. Real-time Clocks (RTCs) are offered in a wide range of low-power, highly accurate, small packages, and MEMs-based ICs. RTC ICs measure time, even when the power of the main device is off, so an auxiliary battery or supercapacitor are required. Power consumption is a key factor in most RTC designs, but accuracy and small package size are also important. The latest RTC ICs reduce package pin count by supporting a serial interface.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CAD) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	RTC Bus Interface	Date Format	Time Format	Package / Case	Battery Backup Switching	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series	Mounting Style	Time Keeping Current	Packaging
	Real Time Clock 64 x 8, Serial, I C Real-Time Clock DS1307ZN+T&R Analog Devices / Maxim Integrated 1: $8.99 2,753In Stock	Mfr. Part # DS1307ZN+T&R Mouser Part # 700-DS1307ZNT&R	Analog Devices / Maxim Integrated	Real Time Clock 64 x 8, Serial, I C Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim ds1307	Datasheet	2,753In Stock	Cut Tape $8.99 $6.84 $6.31 $5.72 View Reel $5.13 $5.44 $5.28 $5.21 $5.13 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,866 : 2,500			I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DS1307ZN	SMD/SMT		Reel, Cut Tape, MouseReel
	Real Time Clock I C Serial Real-Time Clock DS1337S+ Analog Devices / Maxim Integrated 1: $6.71 976In Stock	Mfr. Part # DS1337S+ Mouser Part # 700-DS1337S	Analog Devices / Maxim Integrated	Real Time Clock I C Serial Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim ds1337 rtc	Datasheet	976In Stock	$6.71 $5.44 $5.01 $4.51 $4.28	Min.: 1 Mult.: 1 Max.: 796			I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-8	No Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	DS1337S	SMD/SMT		Tube
	Real Time Clock 5ppm, I2C Real-Time Clock DS3231M+ Analog Devices / Maxim Integrated 1: $22.29 974In Stock	Mfr. Part # DS3231M+ Mouser Part # 700-DS3231M+	Analog Devices / Maxim Integrated	Real Time Clock 5ppm, I2C Real-Time Clock Learn More about Analog Devices / Maxim Integrated maximds3231m	Datasheet	974In Stock	$22.29 $17.45 $16.21 $14.90 View $14.76 $13.90	Min.: 1 Mult.: 1 Max.: 779			I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SO-16	Backup Switching	2.3 V	5.5 V	- 40 C	+ 85 C	DS3231M	SMD/SMT		Tube
	Real Time Clock SERIAL RTC 1.8-3.3V HESR USOP TRL DS1339BU+ Analog Devices / Maxim Integrated 1: $10.64 25In Stock	Mfr. Part # DS1339BU+ Mouser Part # 700-DS1339BU+	Analog Devices / Maxim Integrated	Real Time Clock SERIAL RTC 1.8-3.3V HESR USOP TRL Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	25In Stock	$10.64 $8.21 $6.97 $6.91 View $6.41 $6.12 $5.92 $5.70	Min.: 1 Mult.: 1			Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	uSOP-8	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1339BU	SMD/SMT		Tube