Real Time Clock – Mouser Hong Kong

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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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Image	Part #	Mfr.	Description	Datasheet	Qty.	RTC Bus Interface	Date Format	Time Format	RTC Memory Size	Package/Case	Battery Backup Switching	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series	Mounting Style	Packaging
Real Time Clock Trickle-Charge Timekeeping Chip DS1302ZN+T&R Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1302ZN+T&R Mouser Part No 700-DS1302ZNT&R	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	Restricted Availability	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	31 B	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1302ZN	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C RTC with 56-Byte NV RAM DS1338Z-33+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1338Z-33+ Mouser Part No 700-DS1338Z-33	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with 56-Byte NV RAM	Datasheet	Restricted Availability	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	56 B	SOIC-8	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	DS1338Z	SMD/SMT	Tube
Real Time Clock 64 x 8, Serial, I C Real-Time Clock DS1307Z+T&R Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1307Z+T&R Mouser Part No 700-DS1307ZT&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	Restricted Availability	I2C	YY-MM-DD	HH:MM:SS:hh (12 hr, 24 hr)	56 B	SOIC-8	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	DS1307Z	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C RTC with Trickle Charger DS1340Z-18+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1340Z-18+ Mouser Part No 700-DS1340Z-18	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with Trickle Charger Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	Restricted Availability	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		SO-8	Backup Switching	1.71 V	1.89 V	- 40 C	+ 85 C	DS1340Z	SMD/SMT	Tube
Real Time Clock Serial Alarm Real-Time Clock DS1305EN+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1305EN+ Mouser Part No 700-DS1305EN	Analog Devices / Maxim Integrated	Real Time Clock Serial Alarm Real-Time Clock	Datasheet	Restricted Availability	Serial 3-Wire, SPI	YY-MM-DD	HH:MM:SS (24 hr)	96 B	TSSOP-20	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1305EN	SMD/SMT	Tube
Real Time Clock I C RTC with 56-Byte NV RAM DS1338Z-3+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1338Z-3+ Mouser Part No 700-DS1338Z-3	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with 56-Byte NV RAM	Datasheet	Restricted Availability	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	56 B	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	DS1338Z	SMD/SMT	Tube
Real Time Clock I C Serial Real-Time Clock DS1339U-3+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1339U-3+ Mouser Part No 700-DS1339U-3	Analog Devices / Maxim Integrated	Real Time Clock I C Serial Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	Restricted Availability	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	DS1339U	SMD/SMT	Tube
Real Time Clock I C, 32-Bit Binary Counter Watchdog Clock DS1371U+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1371U+ Mouser Part No 700-DS1371U	Analog Devices / Maxim Integrated	Real Time Clock I C, 32-Bit Binary Counter Watchdog Clock	Datasheet	Restricted Availability	I2C	Binary	Binary	3 B	uSOP-8	No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C	DS1371U	SMD/SMT	Tube
Real Time Clock Trickle-Charge Timekeeping Chip DS1302S+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1302S+ Mouser Part No 700-DS1302S	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	Restricted Availability	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	31 B	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 70 C	DS1302S	SMD/SMT	Tube
Real Time Clock Serial Alarm Real-Time Clock DS1306N+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1306N+ Mouser Part No 700-DS1306N	Analog Devices / Maxim Integrated	Real Time Clock Serial Alarm Real-Time Clock	Datasheet	Restricted Availability	Serial 3-Wire, SPI	YY-MM-DD	HH:MM:SS (24 hr)	96 B	DIP-16	Backup Switching	2 V	5.5 V	0 C	+ 70 C	DS1306N	Through Hole	Tube
Real Time Clock I C Serial Real-Time Clock DS1337+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1337+ Mouser Part No 700-DS1337	Analog Devices / Maxim Integrated	Real Time Clock I C Serial Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim ds1337 rtc	Datasheet	Restricted Availability	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		DIP-8	No Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	DS1337	Through Hole	Tube
Real Time Clock 64 x 8, Serial, I C Real-Time Clock DS1307N+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1307N+ Mouser Part No 700-DS1307N	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	Restricted Availability	I2C	YY-MM-DD	HH:MM:SS:hh (12 hr, 24 hr)	56 B	PDIP-8	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DS1307N	Through Hole	Tube
Real Time Clock I C RTC with 56-Byte NV RAM DS1338Z-3+T&R Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1338Z-3+T&R Mouser Part No 700-DS1338Z-3T&R	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with 56-Byte NV RAM	Datasheet	Restricted Availability	Serial 2-Wire, I2C		HH:MM:SS (24 hr)	56 B	SOIC-8		2.7 V	3.3 V	- 40 C	+ 85 C	DS1338Z	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Trickle-Charge Timekeeping Chip DS1302S+T&R Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1302S+T&R Mouser Part No 700-DS1302ST&R	Analog Devices / Maxim Integrated	Real Time Clock Trickle-Charge Timekeeping Chip Learn More about Analog Devices / Maxim Integrated maxim ds1302 timekeeping chip	Datasheet	Restricted Availability	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS (24 hr)	31 B	SOIC-8	Backup Switching	2 V	5.5 V	0 C	+ 70 C	DS1302S	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Low-Current I C RTC with 56-Byte NV RAM DS1308U-33+T Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1308U-33+T Mouser Part No 700-DS1308U-33+T	Analog Devices / Maxim Integrated	Real Time Clock Low-Current I C RTC with 56-Byte NV RAM Learn More about Analog Devices / Maxim Integrated maxim ds1308	Datasheet	Restricted Availability	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	56 B	uSOP-8	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	DS1308U	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C RTC/Supervisor with Trickle Charger DS1388Z-3+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1388Z-3+ Mouser Part No 700-DS1388Z-3	Analog Devices / Maxim Integrated	Real Time Clock I C RTC/Supervisor with Trickle Charger	Datasheet	Restricted Availability	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	512 B	SOIC-8	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1388Z	SMD/SMT	Tube
Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle DS1390U-3+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1390U-3+ Mouser Part No 700-DS1390U-3	Analog Devices / Maxim Integrated	Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle	Datasheet	Restricted Availability	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		uSOP-10	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1390U	SMD/SMT	Tube
Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle DS1394U-33+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1394U-33+ Mouser Part No 700-DS1394U-33	Analog Devices / Maxim Integrated	Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle	Datasheet	Restricted Availability	Serial 3-Wire, SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		uSOP-10	Backup Switching	2.97 V	5.5 V	- 40 C	+ 85 C	DS1394U	SMD/SMT	Tube
Real Time Clock I C 32-Bit Binary Counter RTC DS1672S-2+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1672S-2+ Mouser Part No 700-DS1672S-2	Analog Devices / Maxim Integrated	Real Time Clock I C 32-Bit Binary Counter RTC	Datasheet	Restricted Availability	Serial 2-Wire, I2C	Binary	Binary		SOIC-8	Backup Switching	1.8 V	2.2 V	- 40 C	+ 85 C	DS1672S	SMD/SMT	Tube
Real Time Clock Real-Time Event Recorder DS1678+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1678+ Mouser Part No 700-DS1678	Analog Devices / Maxim Integrated	Real Time Clock Real-Time Event Recorder	Datasheet	Restricted Availability	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	32 B	PDIP-8	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DS1678	Through Hole	Tube
Real Time Clock I C 32-Bit Binary Counter RTC DS1672U-33+T&R Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1672U-33+T&R Mouser Part No 700-DS1672U-33T&R	Analog Devices / Maxim Integrated	Real Time Clock I C 32-Bit Binary Counter RTC	Datasheet	Restricted Availability	Serial 2-Wire, I2C	Binary	Binary			Backup Switching	2.97 V	3.63 V	- 40 C	+ 85 C	DS1672U	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C Serial Real-Time Clock DS1339U-3+T&R Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1339U-3+T&R Mouser Part No 700-DS1339U-3T&R	Analog Devices / Maxim Integrated	Real Time Clock I C Serial Real-Time Clock Learn More about Analog Devices / Maxim Integrated maxim hvac solutions	Datasheet	Restricted Availability	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	DS1339U	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C 32-Bit Binary Counter RTC DS1672S-3+T&R Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1672S-3+T&R Mouser Part No 700-DS1672S-3T&R	Analog Devices / Maxim Integrated	Real Time Clock I C 32-Bit Binary Counter RTC	Datasheet	Restricted Availability	Serial 2-Wire, I2C	Binary	Binary		SOIC-8	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1672S	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C RTC with Trickle Charger DS1340U-3+ Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1340U-3+ Mouser Part No 700-DS1340U-3	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with Trickle Charger Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	Restricted Availability	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		uSOP-8	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1340U	SMD/SMT	Tube
Real Time Clock I C RTC with Trickle Charger DS1340U-3+T&R Analog Devices / Maxim Integrated Restricted Availability	Mfr. Part No. DS1340U-3+T&R Mouser Part No 700-DS1340U-3T&R	Analog Devices / Maxim Integrated	Real Time Clock I C RTC with Trickle Charger Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	Restricted Availability	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		uSOP-8	Backup Switching	2.7 V	3.3 V	- 40 C	+ 85 C	DS1340U	SMD/SMT	Reel, Cut Tape, MouseReel