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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 AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 AB-RTC-XPA-32.768KHZ-2-T3 ABRACON 3,000: $1.51 Non-Stocked Lead-Time 10 Weeks New Product	Mfr. Part No. AB-RTC-XPA-32.768KHZ-2-T3 Mouser Part No 815-ABRTCXPA327682T3 New Product	ABRACON	Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $1.51 $1.48	Min.: 3,000 Mult.: 3,000 : 3,000	I2C			DFN-8	Integrated Battery	900 mV	5.5 V	- 40 C	+ 85 C	AB-RTC-XPA-32.768kHz-2	SMD/SMT	Reel
Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215 AB-RTC-XL-32.768KHZ-2-T3 ABRACON 3,000: $1.48 Non-Stocked Lead-Time 10 Weeks New Product	Mfr. Part No. AB-RTC-XL-32.768KHZ-2-T3 Mouser Part No 815-RTCXL32768KHZ2T3 New Product	ABRACON	Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215 Learn More about ABRACON ab rtc xl low power rtcs	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $1.48 $1.45	Min.: 3,000 Mult.: 3,000 : 3,000	I2C		HH:MM:SS (24 hr)	SON-8	No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	AB-RTC-XL	SMD/SMT	Reel
Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215 AB-RTC-XLA-32.768KHZ-2-T3 ABRACON 3,000: $1.50 Non-Stocked Lead-Time 10 Weeks New Product	Mfr. Part No. AB-RTC-XLA-32.768KHZ-2-T3 Mouser Part No 815-TCXLA32768KHZ2T3 New Product	ABRACON	Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215 Learn More about ABRACON ab rtc xl low power rtcs	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $1.50 $1.47	Min.: 3,000 Mult.: 3,000 : 3,000	I2C		HH:MM:SS (24 hr)	SON-8	No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	AB-RTC-XLA	SMD/SMT	Reel
Real Time Clock 4-Wire Real Time Clock IC R2043L-E2 Nisshinbo 3,000: $0.706 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. R2043L-E2 Mouser Part No 848-R2043L-E2	Nisshinbo	Real Time Clock 4-Wire Real Time Clock IC	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.706	Min.: 3,000 Mult.: 3,000 : 3,000	Serial 4-Wire, SPI	BCD	BCD	QFN023023-16	No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C	R2043L	SMD/SMT	Reel
Real Time Clock 2-Wire Real Time Clock IC R2051L01-E2 Nisshinbo 3,000: $0.776 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. R2051L01-E2 Mouser Part No 848-R2051L01-E2	Nisshinbo	Real Time Clock 2-Wire Real Time Clock IC	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.776 $0.77	Min.: 3,000 Mult.: 3,000 : 3,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	QFN023023-16	Backup Switching	750 mV	5.5 V	- 40 C	+ 85 C	R2051L	SMD/SMT	Reel
Real Time Clock High precision I2C-Bus Real-Time Clock Module R2051S03-E2-F Nisshinbo 2,000: $0.831 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. R2051S03-E2-F Mouser Part No 848-R2051S03-E2-F	Nisshinbo	Real Time Clock High precision I2C-Bus Real-Time Clock Module	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.831 $0.827	Min.: 2,000 Mult.: 2,000 : 2,000				SSOP-16						R2051S		Reel
Real Time Clock 2-Wire Real Time Clock IC R2051T01-E2-F Nisshinbo 2,000: $0.776 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. R2051T01-E2-F Mouser Part No 848-R2051T01E2F	Nisshinbo	Real Time Clock 2-Wire Real Time Clock IC	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.776 $0.77	Min.: 2,000 Mult.: 2,000 : 2,000	Serial 2-Wire, I2C	BCD	BCD	TSSOP-10	Backup Switching	750 mV	5.5 V	- 40 C	+ 85 C	R2051T	SMD/SMT	Reel
Real Time Clock 3-Wire Real Time Clock IC R2061L01-E2 Nisshinbo 3,000: $0.759 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. R2061L01-E2 Mouser Part No 848-R2061L01-E2	Nisshinbo	Real Time Clock 3-Wire Real Time Clock IC Learn More about Nisshinbo ricoh rtcs	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.759 $0.744	Min.: 3,000 Mult.: 3,000 : 3,000	Serial 3-Wire	BCD	BCD	QFN023023-16	Backup Switching	750 mV	5.5 V	- 40 C	+ 85 C	R2061L	SMD/SMT	Reel
Real Time Clock 3-Wire Real Time Clock IC R2061S02-E2-F Nisshinbo 2,000: $0.873 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. R2061S02-E2-F Mouser Part No 848-R2061S02E2F	Nisshinbo	Real Time Clock 3-Wire Real Time Clock IC	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.873 $0.827	Min.: 2,000 Mult.: 2,000 : 2,000	Serial 3-Wire	BCD	BCD	SSOP-16	Backup Switching	750 mV	5.5 V	- 40 C	+ 85 C	R2061S	SMD/SMT	Reel
Real Time Clock 3-Wire Real Time Clock IC R2062L01-E2 Nisshinbo 3,000: $0.733 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. R2062L01-E2 Mouser Part No 848-R2062L01-E2	Nisshinbo	Real Time Clock 3-Wire Real Time Clock IC		Non-Stocked Lead-Time 12 Weeks	Reel $0.733	Min.: 3,000 Mult.: 3,000 : 3,000	Serial 3-Wire	BCD	BCD	QFN023023-16	Backup Switching	750 mV	5.5 V	- 40 C	+ 85 C	R2062L	SMD/SMT	Reel
Real Time Clock 3 wire interface Real-Time Clock ICs with Battery Backup switch-over Function R2062L02-E2 Nisshinbo 3,000: $0.733 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. R2062L02-E2 Mouser Part No 848-R2062L02-E2	Nisshinbo	Real Time Clock 3 wire interface Real-Time Clock ICs with Battery Backup switch-over Function		Non-Stocked Lead-Time 12 Weeks	Reel $0.733	Min.: 3,000 Mult.: 3,000 : 3,000				QFN023023-16						R2062L		Reel
Real Time Clock 2-Wire Real Time Clock IC R2221L-E2 Nisshinbo 3,000: $0.79 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. R2221L-E2 Mouser Part No 848-R2221L-E2	Nisshinbo	Real Time Clock 2-Wire Real Time Clock IC	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.79 $0.784	Min.: 3,000 Mult.: 3,000 : 3,000	Serial 2-Wire, I2C	BCD	BCD	QFN1818-12	No Backup Switching	1.5 V	5.5 V	- 40 C	+ 85 C	R2221L	SMD/SMT	Reel
Real Time Clock 2-Wire Real Time Clock IC R2262L01-E2 Nisshinbo 3,000: $0.749 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. R2262L01-E2 Mouser Part No 848-R2262L01-E2	Nisshinbo	Real Time Clock 2-Wire Real Time Clock IC	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.749 $0.734	Min.: 3,000 Mult.: 3,000 : 3,000	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	QFN0202-18	Backup Switching	600 mV	5.5 V	- 40 C	+ 85 C	R2262L	SMD/SMT	Reel
Real Time Clock 2-Wire Real Time Clock IC RV5C386A-E2-F Nisshinbo 2,000: $0.79 Non-Stocked Lead-Time 12 Weeks	Mfr. Part No. RV5C386A-E2-F Mouser Part No 848-RV5C386AE2F	Nisshinbo	Real Time Clock 2-Wire Real Time Clock IC	Datasheet	Non-Stocked Lead-Time 12 Weeks	Reel $0.79 $0.784	Min.: 2,000 Mult.: 2,000 : 2,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SSOP-10	No Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	RV5C386	SMD/SMT	Reel
Real Time Clock 32.768 kHz OPTION B TEMP COMP I2C RV-3029-C3-32.768KHZ-OPTION-B-TA-QC Micro Crystal 1,000: $2.03 Non-Stocked Lead-Time 2 Weeks NRND	Mfr. Part No. RV-3029-C3-32.768KHZ-OPTION-B-TA-QC Mouser Part No 428-201732-MG01 NRND	Micro Crystal	Real Time Clock 32.768 kHz OPTION B TEMP COMP I2C	Datasheet	Non-Stocked Lead-Time 2 Weeks	$2.03	Min.: 1,000 Mult.: 1,000								- 40 C	+ 85 C	RV-3029-C3	SMD/SMT
Real Time Clock 32.768 kHz OPTION A TEMP COMP -40/+125C RV-3029-C3-32.768kHz-OPTION-A-TB-QC Micro Crystal 1,000: $2.69 Non-Stocked Lead-Time 10 Weeks NRND	Mfr. Part No. RV-3029-C3-32.768kHz-OPTION-A-TB-QC Mouser Part No 428-202678-MG01 NRND	Micro Crystal	Real Time Clock 32.768 kHz OPTION A TEMP COMP -40/+125C	Datasheet	Non-Stocked Lead-Time 10 Weeks	Reel $2.69	Min.: 1,000 Mult.: 1,000 : 1,000								- 40 C	+ 125 C	RV-3029-C3	SMD/SMT	Reel
Real Time Clock Real-Time Clock SPI interface, -40 to +85 C, 16-pin QFN AM0815AQ Ambiq 3,000: $0.671 Non-Stocked Lead-Time 24 Weeks	Mfr. Part No. AM0815AQ Mouser Part No 222-AM0815AQ	Ambiq	Real Time Clock Real-Time Clock SPI interface, -40 to +85 C, 16-pin QFN	Datasheet	Non-Stocked Lead-Time 24 Weeks	$0.671	Min.: 3,000 Mult.: 3,000										Artasie SPI
Real Time Clock 32.768 kHz +/-10 PPM I2C -40/+85C RV-4162-C7-32.768KHZ-10PPM-TA-QC Micro Crystal 1: $3.04 Non-Stocked	Mfr. Part No. RV-4162-C7-32.768KHZ-10PPM-TA-QC Mouser Part No 428-201516-MG01	Micro Crystal	Real Time Clock 32.768 kHz +/-10 PPM I2C -40/+85C	Datasheet	Non-Stocked	Cut Tape $3.04 $2.27 $2.07 $1.87 Reel $1.58 MouseReel Available	Min.: 1 Mult.: 1 : 1,000								- 40 C	+ 85 C	RV-4162-C7	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Real Time Clock RTC 3.7 x 2.5 x 0.9mm 6ppm @ -40C to +85C commercial grade RV-3129-C3-32.768kHz-OPTION-A-TA-QC-T3 Micro Crystal 1,000: $2.46 Non-Stocked Lead-Time 15 Weeks	Mfr. Part No. RV-3129-C3-32.768kHz-OPTION-A-TA-QC-T3 Mouser Part No 428-3129C3OPTATAQCT3	Micro Crystal	Real Time Clock Real Time Clock RTC 3.7 x 2.5 x 0.9mm 6ppm @ -40C to +85C commercial grade	Datasheet	Non-Stocked Lead-Time 15 Weeks	Reel $2.46 $2.43	Min.: 1,000 Mult.: 1,000 : 1,000												Reel
Real Time Clock RV-3129-C3-32.768kHz-OPTION-A-TB-QC Micro Crystal 1: $4.76 Non-Stocked	Mfr. Part No. RV-3129-C3-32.768kHz-OPTION-A-TB-QC Mouser Part No 428-RV3129C3OPTATBQC	Micro Crystal	Real Time Clock	Datasheet	Non-Stocked	$4.76 $3.59 $3.30 $2.97 View $2.82 $2.80 $2.71 $2.67	Min.: 1 Mult.: 1
Real Time Clock SERIAL RTC W/AUDIO M41T00AUDD1F STMicroelectronics 3,000: $7.14 Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. M41T00AUDD1F Mouser Part No 511-M41T00AUDD1F	STMicroelectronics	Real Time Clock SERIAL RTC W/AUDIO	Datasheet	Non-Stocked Lead-Time 30 Weeks	Reel $7.14	Min.: 3,000 Mult.: 3,000 : 3,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	DFN-16	Backup Switching	3 V	3.6 V	0 C	+ 70 C	M41T00AUD	SMD/SMT	Reel
Real Time Clock Serial I2C bus RTC M41T83ZQA6F STMicroelectronics 1: $6.87 Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. M41T83ZQA6F Mouser Part No 511-M41T83ZQA6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	Non-Stocked Lead-Time 30 Weeks	Cut Tape $6.87 $5.28 $4.88 $4.44 View Reel $4.01 $4.23 $4.15 $4.01 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial		HH:MM:SS:hh (12 hr, 24 hr)		Backup Switching	2.38 V	5.5 V	- 40 C	+ 85 C	M41T83	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial I/O Real Time Clock NJU6350R-TE1 Nisshinbo 2,000: $0.831 Non-Stocked	Mfr. Part No. NJU6350R-TE1 Mouser Part No 513-NJU6350R-TE1	Nisshinbo	Real Time Clock Serial I/O Real Time Clock	Datasheet	Non-Stocked	Reel $0.831 $0.816	Min.: 2,000 Mult.: 2,000 : 2,000				VSP-8				- 30 C	+ 80 C	NJU6350	SMD/SMT	Reel
Real Time Clock I2C GP RTCC 64B SRAM EUI-48 MCP79401T-I/MNY Microchip Technology 3,300: $1.03 Non-Stocked Lead-Time 13 Weeks	Mfr. Part No. MCP79401T-I/MNY Mouser Part No 579-MCP79401TIMNY	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	Non-Stocked Lead-Time 13 Weeks	Reel $1.03	Min.: 3,300 Mult.: 3,300 : 3,300												Reel
Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 MCP79411T-I/ST Microchip Technology 1: $1.26 Non-Stocked Lead-Time 18 Weeks	Mfr. Part No. MCP79411T-I/ST Mouser Part No 579-MCP79411TIST	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape $1.26 Reel $1.06 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	TSSOP-8	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape, MouseReel