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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	Time Keeping Current	Packaging
Real Time Clock Extremely Accurate I C RTC with Integrat DS3232S# Analog Devices / Maxim Integrated 1: $14.96 142In Stock	Mfr. Part # DS3232S# Mouser Part # 700-DS3232S#	Analog Devices / Maxim Integrated	Real Time Clock Extremely Accurate I C RTC with Integrat	Datasheet	142In Stock	$14.96 $13.21 $12.30 $11.29 View $11.18 $10.52 $9.89 Quote	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-20	Backup Switching	2.3 V	5.5 V	0 C	+ 70 C	DS3232S	SMD/SMT	1.5 uA	Tube
Real Time Clock Extremely Accurate I C RTC with Integrat DS3232SN# Analog Devices / Maxim Integrated 1: $17.17 211In Stock	Mfr. Part # DS3232SN# Mouser Part # 700-DS3232SN#	Analog Devices / Maxim Integrated	Real Time Clock Extremely Accurate I C RTC with Integrat	Datasheet	211In Stock	$17.17 $13.60 $12.42 $11.66 View $11.25 $10.90 $10.62 Quote	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-20	Backup Switching	2.3 V	5.5 V	- 40 C	+ 85 C	DS3232SN	SMD/SMT	1.5 uA	Tube
Real Time Clock Extremely Accurate SPI Bus RTC with Inte DS3234S# Analog Devices / Maxim Integrated 1: $16.87 500In Stock	Mfr. Part # DS3234S# Mouser Part # 700-DS3234S#	Analog Devices / Maxim Integrated	Real Time Clock Extremely Accurate SPI Bus RTC with Inte	Datasheet	500In Stock	$16.87 $13.21 $12.30 $11.29 View $11.18 $10.52 $10.28 Quote	Min.: 1 Mult.: 1	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	160 uA	Tube
Real Time Clock Extremely Accurate SPI Bus RTC with Inte DS3234S#T&R Analog Devices / Maxim Integrated 1: $15.17 888In 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	888In Stock	Cut Tape $15.17 $11.88 $11.05 $10.15 View $10.06 $10.04 $8.53 MouseReel Available	Min.: 1 Mult.: 1	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	160 uA	Reel, Cut Tape, MouseReel
Real Time Clock Integrated RC17 w/ NDK Crystal MAX31329NELB+ Analog Devices / Maxim Integrated 1: $5.13 2,705In Stock	Mfr. Part # MAX31329NELB+ Mouser Part # 700-MAX31329NELB+	Analog Devices / Maxim Integrated	Real Time Clock Integrated RC17 w/ NDK Crystal Learn More about Analog Devices / Maxim Integrated maxim max31329 i2c rtc	Datasheet	2,705In Stock	$5.13 $5.03 $5.02 $2.76 Quote Quote	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	LGA-10	Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	300 nA	Tray
Real Time Clock RTC with power management MAX31341CETB+T Analog Devices / Maxim Integrated 1: $2.99 6,191In Stock	Mfr. Part # MAX31341CETB+T Mouser Part # 700-MAX31341CETB+T	Analog Devices / Maxim Integrated	Real Time Clock RTC with power management	Datasheet	6,191In Stock	Cut Tape $2.99 $2.24 $2.04 $1.83 Reel $1.57 View $1.73 $1.67 $1.64 $1.53 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	TDFN-10	Backup Switching	1.6 V	3.6 V	- 40 C	+ 85 C		SMD/SMT	220 nA	Reel, Cut Tape, MouseReel
Real Time Clock 5ppm, I2C Real-Time Clock with Integrated MEMS Oscillator MAX31343ETAY+ Analog Devices / Maxim Integrated 1: $7.20 471In Stock	Mfr. Part # MAX31343ETAY+ Mouser Part # 700-MAX31343ETAY+	Analog Devices / Maxim Integrated	Real Time Clock 5ppm, I2C Real-Time Clock with Integrated MEMS Oscillator	Datasheet	471In Stock	$7.20 $5.53 $5.12 $4.74 View $4.63 $4.12 Quote	Min.: 1 Mult.: 1	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	1.4 uA	Tray
Real Time Clock Real-Time Clock SPI interface with power management, -40 to +85 C, 16-pin QFN AM1815AQ Ambiq 1: $1.75 106In Stock 3,000Expected 1/8/2027	Mfr. Part # AM1815AQ Mouser Part # 222-AM1815AQ	Ambiq	Real Time Clock Real-Time Clock SPI interface with power management, -40 to +85 C, 16-pin QFN	Datasheet	106In Stock 3,000Expected 1/8/2027	$1.75 $1.29 $1.17 $1.04 View $0.976 $0.939 $0.934 $0.875 $0.856	Min.: 1 Mult.: 1										Artasie SPI w/ Power Management
Real Time Clock 32.768 kHz +/-20 PPM I2C -40/+85C RV-4162-C7-32.768kHz-20PPM-TA-QC Micro Crystal 1: $2.61 207In Stock 33,000Expected 11/13/2026	Mfr. Part # RV-4162-C7-32.768kHz-20PPM-TA-QC Mouser Part # 428-200007-MG01	Micro Crystal	Real Time Clock 32.768 kHz +/-20 PPM I2C -40/+85C Learn More about Micro Crystal real time clock modules	Datasheet	207In Stock 33,000Expected 11/13/2026	Cut Tape $2.61 $1.94 $1.77 $1.59 Reel $1.39 View $1.50 $1.46 $1.36 $1.35 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 V	4.4 V	- 40 C	+ 85 C	RV-4162-C7	SMD/SMT	350 nA	Reel, Cut Tape, MouseReel
Real Time Clock 32.768 kHz +/-3 PPM I2C -40/+85C RV-8803-C7-32.768KHZ-3PPM-TA-QC Micro Crystal 1: $2.93 100In Stock 92,000On 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	100In Stock 92,000On Order On Order Ship Dates Mfr. #: RV-8803-C7-32.768KHZ-3PPM-TA-QC Stock: 100 Can Ship Immediately On Order: 12,000 Expected 11/19/2026 36,000 Expected 3/5/2027 44,000 Expected 4/30/2027 Factory Lead-Time: 29 Weeks	Cut Tape $2.93 $2.39 $2.25 $2.03 View Reel $1.54 $1.60 $1.57 $1.54 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	240 nA	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz SPI Time Acc. 6ppm AEC RV-3149-C3 32.768kHz OPTION A TB QA Micro Crystal 1: $4.66 52In Stock 1,000Expected 6/18/2027	Mfr. Part # RV-3149-C3 32.768kHz OPTION A TB QA Mouser Part # 428-203641-MG01	Micro Crystal	Real Time Clock 32.768kHz SPI Time Acc. 6ppm AEC Learn More about Micro Crystal real time clock modules	Datasheet	52In Stock 1,000Expected 6/18/2027	Cut Tape $4.66 $3.54 $3.26 $2.95 View Reel $2.69 $2.80 $2.77 $2.69 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	SPI	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.3 V	5.5 V	- 40 C	+ 125 C	RV-3149	SMD/SMT	800 nA	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C 2.5ppm 3.2x1.5x0.8mm Temperature Sensor & Real Time Clock RV-3032-C7 32.768kHz-2.5PPM-TA-QC Micro Crystal 1: $3.31 48In Stock 35,000Expected 12/18/2026	Mfr. Part # RV-3032-C7 32.768kHz-2.5PPM-TA-QC Mouser Part # 428-203803-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C 2.5ppm 3.2x1.5x0.8mm Temperature Sensor & Real Time Clock Learn More about Micro Crystal rv 3032 c7 rtc module	Datasheet	48In Stock 35,000Expected 12/18/2026	Cut Tape $3.31 $2.48 $2.28 $2.05 Reel $1.87 View $1.94 $1.90 $1.84 $1.67 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		Backup Switching	1.3 V	5.5 V	- 40 C	+ 105 C	RV-3032-C7	SMD/SMT	160 nA	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz SPI 20ppm 2.0x1.2x0.7 AEC-Q200 RV-8063-C8 32.768kHz-20PPM-TA-QA Micro Crystal 1: $1.58 26In Stock 1,000Expected 2/5/2027	Mfr. Part # RV-8063-C8 32.768kHz-20PPM-TA-QA Mouser Part # 428-204290-MC01	Micro Crystal	Real Time Clock 32.768kHz SPI 20ppm 2.0x1.2x0.7 AEC-Q200 Learn More about Micro Crystal rv 8063 c8 rtc modules	Datasheet	26In Stock 1,000Expected 2/5/2027	Cut Tape $1.58 $1.16 $1.05 $0.924 Reel $0.833 View $0.868 $0.845 $0.793 $0.778 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial 3-Wire, SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SON-8		900 mV	5.5 V	- 40 C	+ 85 C	RV-8063-C8	SMD/SMT	190 nA	Reel, Cut Tape, MouseReel
Real Time Clock 128 NVRAM Serial RTC 3.0 to 3.6 Vcc M41ST87WSS6F STMicroelectronics 1: $7.82 32In Stock 1,350On Order	Mfr. Part # M41ST87WSS6F Mouser Part # 511-M41ST87WSS6F	STMicroelectronics	Real Time Clock 128 NVRAM Serial RTC 3.0 to 3.6 Vcc	Datasheet	32In Stock 1,350On Order	Cut Tape $7.82 $6.05 $5.60 $5.07 View Reel $4.58 $4.76 $4.75 $4.58 MouseReel Available	Min.: 1 Mult.: 1 : 1,350	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SSOP-20	Backup Switching	2.7 V	3.6 V	- 40 C	+ 85 C	M41ST87W	SMD/SMT	500 uA	Reel, Cut Tape, MouseReel
Real Time Clock 2.0 to 5.5V 64 (8X8) M41T00SM6F STMicroelectronics 1: $4.27 545In Stock 12,500On Order	Mfr. Part # M41T00SM6F Mouser Part # 511-M41T00SM6F	STMicroelectronics	Real Time Clock 2.0 to 5.5V 64 (8X8)	Datasheet	545In Stock 12,500On Order On Order Ship Dates Mfr. #: M41T00SM6F Stock: 545 Can Ship Immediately On Order: 5,000 Expected 11/25/2026 7,500 Expected 11/15/2027 Factory Lead-Time: 30 Weeks	Cut Tape $4.27 $3.23 $2.97 $2.68 View Reel $2.30 $2.54 $2.51 $2.42 $2.30 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	70 uA	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T82ZM6F STMicroelectronics 1: $3.55 76In Stock 25,000On Order	Mfr. Part # M41T82ZM6F Mouser Part # 511-M41T82ZM6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	76In Stock 25,000On Order On Order Ship Dates Mfr. #: M41T82ZM6F Stock: 76 Can Ship Immediately On Order: 12,500 Expected 10/25/2027 12,500 Expected 11/15/2027 Factory Lead-Time: 30 Weeks	Cut Tape $3.55 $2.67 $2.45 $2.20 Reel $1.94 View $2.08 $2.03 $1.97 $1.91 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	8 uA	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T83RMY6F STMicroelectronics 1: $5.46 334In Stock	Mfr. Part # M41T83RMY6F Mouser Part # 511-M41T83RMY6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	334In Stock	Cut Tape $5.46 $4.22 $3.90 $3.55 Reel $3.19 View $3.39 $3.32 $3.13 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOX-18	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T83	SMD/SMT	8 uA	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T83SMY6F STMicroelectronics 1: $5.21 58In Stock 1,000Expected 2/19/2027	Mfr. Part # M41T83SMY6F Mouser Part # 511-M41T83SMY6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	58In Stock 1,000Expected 2/19/2027	Cut Tape $5.21 $3.96 $3.65 $3.25 View Reel $2.91 $3.09 $3.04 $2.91 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOX-18	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	M41T83	SMD/SMT	8 uA	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T83SQA6F STMicroelectronics 1: $4.52 60In Stock 5,000Expected 3/29/2027	Mfr. Part # M41T83SQA6F Mouser Part # 511-M41T83SQA6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	60In Stock 5,000Expected 3/29/2027	Cut Tape $4.52 $3.43 $3.16 $2.78 Reel $2.35 View $2.64 $2.60 $2.30 $2.29 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	QFN-16	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	M41T83	SMD/SMT	8 uA	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T83ZMY6F STMicroelectronics 1: $7.54 159In Stock 1,000Expected 5/10/2027	Mfr. Part # M41T83ZMY6F Mouser Part # 511-M41T83ZMY6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	159In Stock 1,000Expected 5/10/2027	Cut Tape $7.54 $5.82 $5.39 $4.92 $4.57 Reel $4.34 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		Backup Switching	2.38 V	5.5 V	- 40 C	+ 85 C	M41T83	SMD/SMT	8 uA	Reel, Cut Tape, MouseReel
Real Time Clock Serial SPI bus RTC M41T93SMY6F STMicroelectronics 1: $10.29 20In Stock 1,000Expected 12/3/2026	Mfr. Part # M41T93SMY6F Mouser Part # 511-M41T93SMY6F	STMicroelectronics	Real Time Clock Serial SPI bus RTC	Datasheet	20In Stock 1,000Expected 12/3/2026	Cut Tape $10.29 $8.01 $7.44 $6.57 View Reel $6.17 $6.31 $6.18 $6.17 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	3 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT	8 uA	Reel, Cut Tape, MouseReel
Real Time Clock Serial SPI bus RTC M41T93SQA6F STMicroelectronics 1: $8.31 165In Stock	Mfr. Part # M41T93SQA6F Mouser Part # 511-M41T93SQA6F	STMicroelectronics	Real Time Clock Serial SPI bus RTC	Datasheet	165In Stock	Cut Tape $8.31 $6.84 $6.15 $5.67 Reel $4.73 View $5.18 $5.08 $4.60 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	3 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT	8 uA	Reel, Cut Tape, MouseReel
Real Time Clock 256K (32Kx8) 100ns M48T37V-10MH1F STMicroelectronics 1: $25.10 56In Stock 936Expected 12/1/2026	Mfr. Part # M48T37V-10MH1F Mouser Part # 511-M48T37V-10MH1F	STMicroelectronics	Real Time Clock 256K (32Kx8) 100ns	Datasheet	56In Stock 936Expected 12/1/2026	Cut Tape $25.10 $20.06 $18.81 $17.43 View Reel $16.37 $16.77 $16.37 $16.37 MouseReel Available	Min.: 1 Mult.: 1 : 936	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-44	Backup Switching	3 V	3.6 V	0 C	+ 70 C	M48T37V	SMD/SMT	2 mA	Reel, Cut Tape, MouseReel
Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 MCP79411-I/ST Microchip Technology 1: $1.18 498In Stock	Mfr. Part # MCP79411-I/ST Mouser Part # 579-MCP79411IST	Microchip Technology	Real Time Clock I2C GP RTCC 1Kb EE 64B SRAM EUI-48 Learn More about Microchip Technology microchip mcp794xx calendars	Datasheet	498In Stock	$1.18 $1.08 $1.06	Min.: 1 Mult.: 1	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	1.2 uA	Tube
Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM ID MCP79520T-I/MN Microchip Technology 1: $1.49 2,905In Stock	Mfr. Part # MCP79520T-I/MN Mouser Part # 579-MCP79520T-I/MN	Microchip Technology	Real Time Clock SPI GP RTCC 2Kb EE 64B SRAM ID Learn More about Microchip Technology microchip mcp795xx	Datasheet	2,905In Stock	Cut Tape $1.49 Reel $1.25	Min.: 1 Mult.: 1 : 3,300												1.2 uA	Reel, Cut Tape