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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 (PEN) 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 1-Wire Time Chip With Interrupt DS2417P+T&R Analog Devices / Maxim Integrated 1: S/ 19.15 5,365In Stock	Mfr. Part # DS2417P+T&R Mouser Part # 700-DS2417PT&R	Analog Devices / Maxim Integrated	Real Time Clock 1-Wire Time Chip With Interrupt	Datasheet	5,365In Stock	Cut Tape S/ 19.15 S/ 14.60 S/ 13.47 S/ 12.18 View Reel S/ 10.94 S/ 11.60 S/ 11.25 S/ 11.09 S/ 10.98 S/ 10.94 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4,298 : 4,000	Serial 1-Wire	Binary	Binary		Backup Switching	2.5 V	5.5 V	- 40 C	+ 85 C	DS2417P	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 5ppm, I C Real-Time Clock with SRAM DS3232MZ+ Analog Devices / Maxim Integrated 1: S/ 60.76 2,531In Stock	Mfr. Part # DS3232MZ+ Mouser Part # 700-DS3232MZ+	Analog Devices / Maxim Integrated	Real Time Clock 5ppm, I C Real-Time Clock with SRAM	Datasheet	2,531In Stock	S/ 60.76 S/ 47.57 S/ 45.46 S/ 38.61 View S/ 37.87 S/ 37.02	Min.: 1 Mult.: 1 Max.: 2,025	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	2.3 V	4.5 V	- 40 C	+ 85 C	DS3232MZ	SMD/SMT	Tube
Real Time Clock Extremely Accurate SPI Bus RTC with Inte DS3234S#T&R Analog Devices / Maxim Integrated 1: S/ 59.05 1,898In Stock	Mfr. Part # DS3234S#T&R Mouser Part # 700-DS3234S#T&R-	Analog Devices / Maxim Integrated	Real Time Clock Extremely Accurate SPI Bus RTC with Inte	Datasheet	1,898In Stock	Cut Tape S/ 59.05 S/ 46.24 S/ 43.01 S/ 39.51 View Reel S/ 33.20 S/ 39.16 S/ 39.08 S/ 33.20 MouseReel Available	Min.: 1 Mult.: 1 Max.: 1,518 : 1,000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-20	Backup Switching	2 V	5.5 V	0 C	+ 70 C	DS3234S	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Low Current Real Time Clock with I2C Int MAX31341BEWC+T Analog Devices / Maxim Integrated 1: S/ 11.87 5,281In Stock	Mfr. Part # MAX31341BEWC+T Mouser Part # 700-MAX31341BEWC+T	Analog Devices / Maxim Integrated	Real Time Clock Low Current Real Time Clock with I2C Int Learn More about Analog Devices / Maxim Integrated maxim max31341b clock	Datasheet	5,281In Stock	Cut Tape S/ 11.87 S/ 8.87 S/ 8.14 S/ 7.28 View Reel S/ 6.23 S/ 6.89 S/ 6.70 S/ 6.50 S/ 6.23 MouseReel Available	Min.: 1 Mult.: 1 Max.: 4,224 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	3.6 V	- 40 C	+ 85 C	MAX31341	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 5ppm, I2C Real-Time Clock with Integrated MEMS Oscillator MAX31343ETAY+T Analog Devices / Maxim Integrated 1: S/ 28.34 3,027In Stock	Mfr. Part # MAX31343ETAY+T Mouser Part # 700-MAX31343ETAY+T	Analog Devices / Maxim Integrated	Real Time Clock 5ppm, I2C Real-Time Clock with Integrated MEMS Oscillator	Datasheet	3,027In Stock	Cut Tape S/ 28.34 S/ 21.76 S/ 20.12 S/ 18.37 S/ 17.52 Reel S/ 17.52 MouseReel Available	Min.: 1 Mult.: 1 Max.: 2,421 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	TDFN-8	Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Real-Time Clock I2C Interface Integrated Circuit, -40 to +85 C, 16-pin QFN AM0805AQ Ambiq 1: S/ 3.39 2,609In Stock	Mfr. Part # AM0805AQ Mouser Part # 222-AM0805AQ	Ambiq	Real Time Clock Real-Time Clock I2C Interface Integrated Circuit, -40 to +85 C, 16-pin QFN Learn More about Ambiq artasie am08x5 clocks	Datasheet	2,609In Stock	S/ 3.39 S/ 2.86	Min.: 1 Mult.: 1										Artasie I2C
Real Time Clock Real-Time Clock I2C interface with power management, -40 to +85 C, 16-pin QFN AM1805AQ Ambiq 1: S/ 3.81 13,527In Stock 15,000Expected 1/8/2027	Mfr. Part # AM1805AQ Mouser Part # 222-AM1805AQ	Ambiq	Real Time Clock Real-Time Clock I2C interface with power management, -40 to +85 C, 16-pin QFN Learn More about Ambiq am18x5 rtcs	Datasheet	13,527In Stock 15,000Expected 1/8/2027	S/ 3.81 S/ 3.17	Min.: 1 Mult.: 1										Artasie I2C w/ Power Management
Real Time Clock 32.768 kHz +/-3 PPM I2C -40/+85C RV-8803-C7-32.768KHZ-3PPM-TA-QC Micro Crystal 1: S/ 11.41 8,937In Stock 68,000On Order	Mfr. Part # RV-8803-C7-32.768KHZ-3PPM-TA-QC Mouser Part # 428-202677-MG01	Micro Crystal	Real Time Clock 32.768 kHz +/-3 PPM I2C -40/+85C Learn More about Micro Crystal real time clock modules	Datasheet	8,937In Stock 68,000On Order On Order Ship Dates Mfr. #: RV-8803-C7-32.768KHZ-3PPM-TA-QC Stock: 8,937 Can Ship Immediately On Order: 44,000 Expected 4/30/2027 24,000 TBD Factory Lead-Time: 39 Weeks	Cut Tape S/ 11.41 S/ 9.30 S/ 8.76 S/ 7.90 View Reel S/ 5.99 S/ 6.23 S/ 6.11 S/ 5.99 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		No Backup Switching	1.5 V	5.5 V	- 40 C	+ 85 C	RV-8803-C7	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 512 (64x8) M41ST85WMH6F STMicroelectronics 1: S/ 40.44 565In Stock	Mfr. Part # M41ST85WMH6F Mouser Part # 511-M41ST85WMH6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	565In Stock	Cut Tape S/ 40.44 S/ 31.53 S/ 29.31 S/ 26.86 Reel S/ 24.02 View S/ 25.61 S/ 24.72 S/ 23.47 Quote MouseReel Available	Min.: 1 Mult.: 1 : 936	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOH-28	Backup Switching	2.7 V	3.6 V	- 40 C	+ 85 C	M41ST85W	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 1280 (160x8) M41ST87WMX6TR STMicroelectronics 1: S/ 42.00 1,173In Stock	Mfr. Part # M41ST87WMX6TR Mouser Part # 511-M41ST87WMX6TR	STMicroelectronics	Real Time Clock Serial 1280 (160x8)	Datasheet	1,173In Stock	Cut Tape S/ 42.00 S/ 32.77 S/ 30.48 S/ 27.95 View Reel S/ 25.03 S/ 26.55 S/ 26.04 S/ 25.03 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOX-28	Backup Switching	2.7 V	3.6 V	- 40 C	+ 85 C	M41ST87W	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 2.0 to 5.5V 64 (8X8) M41T00SM6F STMicroelectronics 1: S/ 16.62 4,651In Stock 5,000Expected 11/25/2026	Mfr. Part # M41T00SM6F Mouser Part # 511-M41T00SM6F	STMicroelectronics	Real Time Clock 2.0 to 5.5V 64 (8X8)	Datasheet	4,651In Stock 5,000Expected 11/25/2026	Cut Tape S/ 16.62 S/ 12.57 S/ 11.56 S/ 10.43 View Reel S/ 8.95 S/ 9.89 S/ 9.77 S/ 9.42 S/ 8.95 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YYYY-MM-DD	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T00S	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 64 (8X8) M41T0M6F STMicroelectronics 1: S/ 18.29 2,415In Stock 12,500On Order	Mfr. Part # M41T0M6F Mouser Part # 511-M41T0M6F	STMicroelectronics	Real Time Clock Serial 64 (8X8)	Datasheet	2,415In Stock 12,500On Order On Order Ship Dates Mfr. #: M41T0M6F Stock: 2,415 Can Ship Immediately On Order: 5,000 Expected 12/14/2026 7,500 Expected 5/17/2027 Factory Lead-Time: 30 Weeks	Cut Tape S/ 18.29 S/ 13.82 S/ 12.69 S/ 11.48 View Reel S/ 9.89 S/ 10.90 S/ 10.82 S/ 10.16 S/ 9.89 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	No Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	M41T0	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 512 (64x8) M41T11M6F STMicroelectronics 1: S/ 14.05 2,067In Stock	Mfr. Part # M41T11M6F Mouser Part # 511-M41T11M6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	2,067In Stock	Cut Tape S/ 14.05 S/ 10.59 S/ 9.69 S/ 8.72 Reel S/ 7.36 View S/ 8.21 S/ 8.06 S/ 7.63 S/ 7.05 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	M41T11	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 512 (64x8) M41T11MH6F STMicroelectronics 1: S/ 39.66 1,385In Stock	Mfr. Part # M41T11MH6F Mouser Part # 511-M41T11MH6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	1,385In Stock	Cut Tape S/ 39.66 S/ 30.87 S/ 28.69 S/ 26.24 Reel S/ 23.43 View S/ 24.91 S/ 23.47 S/ 21.95 Quote MouseReel Available	Min.: 1 Mult.: 1 : 936	Serial	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOX-28	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	M41T11	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 160 (20x8) M41T80M6F STMicroelectronics 1: S/ 22.38 1,840In Stock	Mfr. Part # M41T80M6F Mouser Part # 511-M41T80M6F	STMicroelectronics	Real Time Clock Serial 160 (20x8)	Datasheet	1,840In Stock	Cut Tape S/ 22.38 S/ 17.32 S/ 15.88 S/ 14.48 View Reel S/ 12.96 S/ 13.70 S/ 13.27 S/ 13.08 S/ 12.96 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	No Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	M41T80	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T82RM6F STMicroelectronics 1: S/ 16.85 2,402In Stock 2,500Expected 12/28/2026	Mfr. Part # M41T82RM6F Mouser Part # 511-M41T82RM6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	2,402In Stock 2,500Expected 12/28/2026	Cut Tape S/ 16.85 S/ 12.69 S/ 11.68 S/ 10.55 Reel S/ 9.03 View S/ 10.00 S/ 9.93 S/ 9.34 S/ 8.99 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T82	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T82SM6F STMicroelectronics 1: S/ 12.69 4,048In Stock	Mfr. Part # M41T82SM6F Mouser Part # 511-M41T82SM6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	4,048In Stock	Cut Tape S/ 12.69 S/ 9.50 S/ 8.72 S/ 7.82 Reel S/ 6.54 View S/ 7.40 S/ 7.20 S/ 7.01 S/ 6.46 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	M41T82	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T82ZM6F STMicroelectronics 1: S/ 13.82 5,176In Stock 12,500Expected 10/25/2027	Mfr. Part # M41T82ZM6F Mouser Part # 511-M41T82ZM6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	5,176In Stock 12,500Expected 10/25/2027	Cut Tape S/ 13.82 S/ 10.39 S/ 9.54 S/ 8.56 Reel S/ 7.55 View S/ 8.10 S/ 7.90 S/ 7.67 S/ 7.43 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	2.38 V	5.5 V	- 40 C	+ 85 C	M41T82	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock SPI RTC 32.768 kHz 365nA 2.0V to 5.5V M41T93RQA6F STMicroelectronics 1: S/ 32.62 1,083In Stock	Mfr. Part # M41T93RQA6F Mouser Part # 511-M41T93RQA6F	STMicroelectronics	Real Time Clock SPI RTC 32.768 kHz 365nA 2.0V to 5.5V	Datasheet	1,083In Stock	Cut Tape S/ 32.62 S/ 25.15 S/ 23.28 S/ 21.25 Reel S/ 19.03 View S/ 19.66 S/ 18.76 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	QFN-16	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial SPI bus RTC M41T93ZMY6F STMicroelectronics 1: S/ 41.53 757In Stock	Mfr. Part # M41T93ZMY6F Mouser Part # 511-M41T93ZMY6F	STMicroelectronics	Real Time Clock Serial SPI bus RTC	Datasheet	757In Stock	Cut Tape S/ 41.53 S/ 32.42 S/ 30.17 S/ 27.68 View Reel S/ 25.11 S/ 26.47 S/ 26.20 S/ 25.11 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOX-18	Backup Switching	2.38 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 512 (64x8) M41T94MQ6F STMicroelectronics 1: S/ 21.33 2,559In Stock 5,000Expected 4/28/2027	Mfr. Part # M41T94MQ6F Mouser Part # 511-M41T94MQ6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	2,559In Stock 5,000Expected 4/28/2027	Cut Tape S/ 21.33 S/ 16.27 S/ 15.03 S/ 13.62 View Reel S/ 11.72 S/ 12.96 S/ 12.69 S/ 12.57 S/ 11.72 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-16	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T94	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 16K (2Kx8) 150ns M48T02-150PC1 STMicroelectronics 1: S/ 121.84 646In Stock	Mfr. Part # M48T02-150PC1 Mouser Part # 511-M48T0215PC1	STMicroelectronics	Real Time Clock 16K (2Kx8) 150ns	Datasheet	646In Stock	S/ 121.84 S/ 96.85 S/ 88.55 S/ 83.88 S/ 80.69	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PCDIP-24	Integrated Battery	4.75 V	5.5 V	0 C	+ 70 C	M48T02	Through Hole	Tube
Real Time Clock 16K (2Kx8) 70ns M48T02-70PC1 STMicroelectronics 1: S/ 116.66 430In Stock	Mfr. Part # M48T02-70PC1 Mouser Part # 511-M48T0270PC1	STMicroelectronics	Real Time Clock 16K (2Kx8) 70ns	Datasheet	430In Stock	S/ 116.66 S/ 92.64 S/ 87.43 S/ 81.16 View S/ 78.32 S/ 75.55 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PCDIP-24	Integrated Battery	4.75 V	5.5 V	0 C	+ 70 C	M48T02	Through Hole	Tube
Real Time Clock 64K (8Kx8) 150ns M48T08-150PC1 STMicroelectronics 1: S/ 152.20 218In Stock 480Expected 10/29/2026	Mfr. Part # M48T08-150PC1 Mouser Part # 511-M48T0815PC1	STMicroelectronics	Real Time Clock 64K (8Kx8) 150ns	Datasheet	218In Stock 480Expected 10/29/2026	S/ 152.20 S/ 122.65 S/ 115.14 S/ 111.09 View S/ 103.38 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PCDIP-28	Integrated Battery	4.75 V	5.5 V	0 C	+ 70 C	M48T08	Through Hole	Tube
Real Time Clock 256K (32Kx8) 70ns M48T35-70PC1 STMicroelectronics 1: S/ 212.65 236In Stock	Mfr. Part # M48T35-70PC1 Mouser Part # 511-M48T3570PC1	STMicroelectronics	Real Time Clock 256K (32Kx8) 70ns	Datasheet	236In Stock	S/ 212.65 S/ 173.02 S/ 162.47 S/ 153.29 View S/ 153.21 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PCDIP-28	Integrated Battery	4.75 V	5.5 V	0 C	+ 70 C	M48T35	Through Hole	Tube