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Real Time Clock

Real Time Clocks are in stock with same-day shipping at Mouser from industry leading manufacturers. Mouser is an authorized distributor for many real time clock manufacturers including Analog Devices, Epson, Microchip, Micro Crystal, NXP, Renesas Electronics, STMicroelectronics & more.
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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Interface Type	Date Format	Time Format	Package / Case	Battery Backup Switching	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series	Mounting Style	Packaging
Real Time Clock Low-Current SPI/3-Wire RTCs DS1344D-33+T&R Analog Devices / Maxim Integrated 1: $4.54 917In Stock	Mfr. Part # DS1344D-33+T&R Mouser Part # 700-DS1344D-33+T&R	Analog Devices / Maxim Integrated	Real Time Clock Low-Current SPI/3-Wire RTCs Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	917In Stock	Cut Tape $4.54 $4.44 $4.34 $4.25 View $4.19 $4.13 $4.06 $4.00 MouseReel Available	Min.: 1 Mult.: 1	Serial 3-Wire, SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TDFN-EP-14	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	DS1344D	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Low-Current SPI/3-Wire RTCs DS1344E-3+ Analog Devices / Maxim Integrated 1: $4.54 53In Stock	Mfr. Part # DS1344E-3+ Mouser Part # 700-DS1344E-3+	Analog Devices / Maxim Integrated	Real Time Clock Low-Current SPI/3-Wire RTCs Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	53In Stock	$4.54 $4.44 $4.34 $4.25 View $4.19 $4.13 $4.06 $4.00	Min.: 1 Mult.: 1	Serial 3-Wire, SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-20	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	DS1344E	SMD/SMT	Tube
Real Time Clock Low-Current, SPI-Compatible Real-Time Cl DS1347T+T&R Analog Devices / Maxim Integrated 1: $5.73 1,182In Stock	Mfr. Part # DS1347T+T&R Mouser Part # 700-DS1347T+T&R	Analog Devices / Maxim Integrated	Real Time Clock Low-Current, SPI-Compatible Real-Time Cl Learn More about Analog Devices / Maxim Integrated maximds1343	Datasheet	1,182In Stock	Cut Tape $5.73 $4.37 $4.02 $3.65 $3.58 $3.03 MouseReel Available	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TDFN-EP-8	No Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	DS1347T	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C, 32-Bit Binary Counter Watchdog Clock DS1371U+T&R Analog Devices / Maxim Integrated 1: $5.50 604In Stock	Mfr. Part # DS1371U+T&R Mouser Part # 700-DS1371UT&R	Analog Devices / Maxim Integrated	Real Time Clock I C, 32-Bit Binary Counter Watchdog Clock	Datasheet	604In Stock	Cut Tape $5.50 $4.19 $3.87 $3.51 View $3.34 $3.26 $3.24 $3.10 Quote MouseReel Available	Min.: 1 Mult.: 1	I2C	Binary	Binary	uSOP-8	No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C	DS1371U	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C, 32-Bit, Binary Counter Clock with 64-Bit ID DS1372U+T&R Analog Devices / Maxim Integrated 1: $5.12 597In Stock	Mfr. Part # DS1372U+T&R Mouser Part # 700-DS1372UT&R	Analog Devices / Maxim Integrated	Real Time Clock I C, 32-Bit, Binary Counter Clock with 64-Bit ID	Datasheet	597In Stock	Cut Tape $5.12 $3.90 $3.59 $3.26 $3.20 $2.71 MouseReel Available	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	Binary	Binary	uSOP-8	No Backup Switching	2.4 V	5.5 V	- 40 C	+ 85 C	DS1372U+	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output DS1374C-33# Analog Devices / Maxim Integrated 1: $13.16 240In Stock	Mfr. Part # DS1374C-33# Mouser Part # 700-DS1374C-33#	Analog Devices / Maxim Integrated	Real Time Clock I C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output	Datasheet	240In Stock	$13.16 $10.30 $9.34 $8.79 View $8.52 $8.20 $8.02 Quote	Min.: 1 Mult.: 1	I2C	Binary	Binary	SO-16	Backup Switching	2.97 V	5.5 V	- 40 C	+ 85 C	DS1374C	SMD/SMT	Tube
Real Time Clock I C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output DS1374C-33#T&R Analog Devices / Maxim Integrated 1: $11.14 894In Stock	Mfr. Part # DS1374C-33#T&R Mouser Part # 700-DS1374C-33#T&R-	Analog Devices / Maxim Integrated	Real Time Clock I C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output	Datasheet	894In Stock	Cut Tape $11.14 $8.68 $8.07 $7.39 View $7.08 $6.99 $6.71 Quote MouseReel Available	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	Binary	Binary	SO-16	Backup Switching	2.97 V	5.5 V	- 40 C	+ 85 C	DS1374C	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I C RTC/Supervisor with Trickle Charger DS1388Z-33+ Analog Devices / Maxim Integrated 1: $8.83 572In Stock	Mfr. Part # DS1388Z-33+ Mouser Part # 700-DS1388Z-33	Analog Devices / Maxim Integrated	Real Time Clock I C RTC/Supervisor with Trickle Charger	Datasheet	572In Stock	$8.83 $6.84 $6.35 $5.39 View $5.37 $5.23 Quote	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	2.97 V	3.63 V	- 40 C	+ 85 C	DS1388Z	SMD/SMT	Tube
Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle DS1390U-18+ Analog Devices / Maxim Integrated 1: $6.01 82In Stock	Mfr. Part # DS1390U-18+ Mouser Part # 700-DS1390U-18	Analog Devices / Maxim Integrated	Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle	Datasheet	82In Stock	$6.01 $4.61 $3.91 $3.87 View $3.68 $3.57 $3.53 $3.49 Quote	Min.: 1 Mult.: 1	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	uSOP-10	Backup Switching	1.71 V	1.89 V	- 40 C	+ 85 C	DS1390U	SMD/SMT	Tube
Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle DS1391U-33+T&R Analog Devices / Maxim Integrated 1: $6.48 2,105In Stock	Mfr. Part # DS1391U-33+T&R Mouser Part # 700-DS1391U-33T&R	Analog Devices / Maxim Integrated	Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle	Datasheet	2,105In Stock	Cut Tape $6.48 $4.96 $4.59 $4.17 View $3.97 $3.90 $3.88 $3.70 Quote MouseReel Available	Min.: 1 Mult.: 1	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	DS1391U	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle DS1392U-33+ Analog Devices / Maxim Integrated 1: $7.68 124In Stock	Mfr. Part # DS1392U-33+ Mouser Part # 700-DS1392U-33	Analog Devices / Maxim Integrated	Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle	Datasheet	124In Stock	$7.68 $5.92 $5.30 $4.99 View $4.62 $4.61 $4.48 $4.26	Min.: 1 Mult.: 1	Serial 3-Wire	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	DS1392U	SMD/SMT	Tube
Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle DS1393U-33+ Analog Devices / Maxim Integrated 1: $7.68 43In Stock	Mfr. Part # DS1393U-33+ Mouser Part # 700-DS1393U-33	Analog Devices / Maxim Integrated	Real Time Clock Low-Voltage SPI/3-Wire RTCs with Trickle	Datasheet	43In Stock	$7.68 $5.92 $5.03 $4.99 View $4.62 $4.48 $4.26	Min.: 1 Mult.: 1	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		Backup Switching	2.97 V	5.5 V	- 40 C	+ 85 C	DS1393U	SMD/SMT	Tube
Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks DS1501WZ+ Analog Devices / Maxim Integrated 1: $18.81 36In Stock	Mfr. Part # DS1501WZ+ Mouser Part # 700-DS1501WZ	Analog Devices / Maxim Integrated	Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks	Datasheet	36In Stock	$18.81 $15.25 $12.95 $12.77 View $12.26 $12.04 Quote	Min.: 1 Mult.: 1	Parallel	YYYY-MM-DD	HH:MM:SS (24 hr)	SO-28		3 V	3.6 V	0 C	+ 70 C	DS1501WZ+	SMD/SMT	Tube
Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks DS1501YZN+ Analog Devices / Maxim Integrated 1: $22.84 360In Stock	Mfr. Part # DS1501YZN+ Mouser Part # 700-DS1501YZN	Analog Devices / Maxim Integrated	Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks	Datasheet	360In Stock	$22.84 $18.76 $15.94 $15.85 View $15.25 $14.73 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	SO-28	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DS1501YZN+	SMD/SMT	Tube
Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks DS1511W+ Analog Devices / Maxim Integrated 1: $39.62 49In Stock	Mfr. Part # DS1511W+ Mouser Part # 700-DS1511W	Analog Devices / Maxim Integrated	Real Time Clock Y2K-Compliant Watchdog Real-Time Clocks	Datasheet	49In Stock	$39.62 $32.08 $30.18 $28.94 View $27.13 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-28	Backup Switching	3 V	3.6 V	0 C	+ 70 C	DS1511W	Through Hole	Tube
Real Time Clock 256k Nonvolatile, Y2K-Compliant Timekeep DS1554-70+ Analog Devices / Maxim Integrated 1: $55.05 17In Stock	Mfr. Part # DS1554-70+ Mouser Part # 700-DS1554-70	Analog Devices / Maxim Integrated	Real Time Clock 256k Nonvolatile, Y2K-Compliant Timekeep	Datasheet	17In Stock	$55.05 $45.00 $42.46 $41.29 View $37.52 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-32	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	DS1554	Through Hole	Tube
Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi DS1556-70IND+ Analog Devices / Maxim Integrated 1: $86.84 22In Stock	Mfr. Part # DS1556-70IND+ Mouser Part # 700-DS1556-70IND	Analog Devices / Maxim Integrated	Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi	Datasheet	22In Stock	$86.84 $72.32 $68.08 $64.30 Quote Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-32	Integrated Battery	4.5 V	5.5 V	- 40 C	+ 85 C	DS1556	Through Hole	Tube
Real Time Clock I C 32-Bit Binary Counter RTC DS1672S-2+ Analog Devices / Maxim Integrated 1: $6.13 99In Stock	Mfr. Part # DS1672S-2+ Mouser Part # 700-DS1672S-2	Analog Devices / Maxim Integrated	Real Time Clock I C 32-Bit Binary Counter RTC	Datasheet	99In Stock	$6.13 $4.70 $4.35 $3.68 View $3.64 $3.60 $3.56 Quote	Min.: 1 Mult.: 1	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 I C 32-Bit Binary Counter RTC DS1672S-3+ Analog Devices / Maxim Integrated 1: $3.18 130In Stock	Mfr. Part # DS1672S-3+ Mouser Part # 700-DS1672S-3	Analog Devices / Maxim Integrated	Real Time Clock I C 32-Bit Binary Counter RTC	Datasheet	130In Stock	$3.18 $3.11 $3.04 $2.98 View $2.93 $2.89 $2.85 $2.80	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	Binary	Binary	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	DS1672S	SMD/SMT	Tube
Real Time Clock I C 32-Bit Binary Counter RTC DS1672U-33+ Analog Devices / Maxim Integrated 1: $5.89 177In Stock	Mfr. Part # DS1672U-33+ Mouser Part # 700-DS1672U-33	Analog Devices / Maxim Integrated	Real Time Clock I C 32-Bit Binary Counter RTC	Datasheet	177In Stock	$5.89 $4.49 $4.13 $3.75 View $3.56 $3.45 $3.41 $3.37	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	Binary	Binary	uSOP-8	Backup Switching	2.97 V	3.63 V	- 40 C	+ 85 C	DS1672U	SMD/SMT	Tube
Real Time Clock Real-Time Event Recorder DS1678+ Analog Devices / Maxim Integrated 1: $8.36 48In Stock	Mfr. Part # DS1678+ Mouser Part # 700-DS1678	Analog Devices / Maxim Integrated	Real Time Clock Real-Time Event Recorder	Datasheet	48In Stock	$8.36 $8.18 $8.00 $7.84 View $7.72 $7.60 $7.49 Quote	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	PDIP-8	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DS1678	Through Hole	Tube
Real Time Clock 3V/5V Real-Time Clock DS1685-5+ Analog Devices / Maxim Integrated 1: $16.00 33In Stock	Mfr. Part # DS1685-5+ Mouser Part # 700-DS1685-5	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clock	Datasheet	33In Stock	$16.00 $12.17 $11.59 $9.80 View $9.62 $9.22 $9.03 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	PDIP-24	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	DS1685	Through Hole	Tube
Real Time Clock 3V/5V Real-Time Clock DS1685E-5+ Analog Devices / Maxim Integrated 1: $12.39 467In Stock	Mfr. Part # DS1685E-5+ Mouser Part # 700-DS1685E-5	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clock	Datasheet	467In Stock	$12.39 $10.63 $9.34 $9.00 View $8.65 $7.67 $7.50 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-24	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	DS1685E	SMD/SMT	Tube
Real Time Clock 3V/5V Real-Time Clock DS1685EN-5+ Analog Devices / Maxim Integrated 1: $13.93 132In Stock	Mfr. Part # DS1685EN-5+ Mouser Part # 700-DS1685EN-5	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clock	Datasheet	132In Stock	$13.93 $10.88 $10.62 $10.24 View $9.02 $8.55 $8.34 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-24	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	DS1685EN	SMD/SMT	Tube
Real Time Clock 3V/5V Real-Time Clock DS1685S-3+ Analog Devices / Maxim Integrated 1: $12.42 80In Stock	Mfr. Part # DS1685S-3+ Mouser Part # 700-DS1685S-3	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clock	Datasheet	80In Stock	$12.42 $9.73 $9.05 $8.31 View $8.23 $7.74 $7.57 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-24	Backup Switching	2.7 V	3.7 V	0 C	+ 70 C	DS1685S	SMD/SMT	Tube