Real Time Clock – Mouser Singapore

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Real-Time Clock (RTC) Modules

Micro Crystal Real-Time Clock (RTC) Modules combine a 32.768kHz tuning fork crystal resonator with a CMOS-based oscillator and an RTC IC housed in a miniature SMD ceramic package. The RTC modules offer high accuracy, temperature compensation, and low current consumption. These cost-effective Micro Crystal modules have an extended operating temperature and are AEC-Q200 qualified. Applications include the Internet of Things (IoT), smart metering, energy harvesting solutions, battery management systems, automotive, industrial, computing, embedded systems, wearables, healthcare, and more.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (SGD) Filter the results in the table by unit price based on your quantity.	Qty.	RTC Bus Interface	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 32.768kHz I2C 20ppm 2.0x1.2x0.6 AEC-Q200 RV-3028-C8-32.768kHz-1PPM-TA-QA Micro Crystal 1: $4.12 886In Stock New Product	Mfr. Part No. RV-3028-C8-32.768kHz-1PPM-TA-QA Mouser Part No 428-RV3028C81PPMTAQA New Product	Micro Crystal	Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6 AEC-Q200 Learn More about Micro Crystal rv 3028 c8 rtc modules	Datasheet	886In Stock	Cut Tape $4.12 $3.07 $2.80 $2.52 Reel $2.39 View $2.39 $2.22 $2.19 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SON-8	Backup Switching	1.1 V	5.5 V	- 40 C	+ 85 C	RV-3028-C8	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz SPI Time Acc. 25ppm RV-3149-C3 32.768kHz OPTION B TA QC Micro Crystal 1: $5.03 717In Stock	Mfr. Part No. RV-3149-C3 32.768kHz OPTION B TA QC Mouser Part No 428-203605-MG01	Micro Crystal	Real Time Clock 32.768kHz SPI Time Acc. 25ppm Learn More about Micro Crystal real time clock modules	Datasheet	717In Stock	Cut Tape $5.03 $3.78 $3.48 $3.13 Reel $2.73 View $2.95 $2.88 $2.65 $2.60 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	+ 85 C	RV-3149	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz SPI Time Acc. 6ppm RV-3149-C3 32.768kHz OPTION A TA QC Micro Crystal 1: $5.89 399In Stock	Mfr. Part No. RV-3149-C3 32.768kHz OPTION A TA QC Mouser Part No 428-203658-MG01	Micro Crystal	Real Time Clock 32.768kHz SPI Time Acc. 6ppm Learn More about Micro Crystal real time clock modules	Datasheet	399In Stock	Cut Tape $5.89 $4.43 $4.08 $3.67 Reel $3.35 View $3.50 $3.47 $3.30 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	+ 85 C	RV-3149	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768 kHz +/-20 PPM I2C -40/+85C RV-4162-C7-32.768kHz-20PPM-TA-QC Micro Crystal 1: $3.62 15,472In Stock	Mfr. Part No. RV-4162-C7-32.768kHz-20PPM-TA-QC Mouser Part No 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	15,472In Stock	Cut Tape $3.62 $2.69 $2.45 $2.20 Reel $1.93 View $2.08 $2.01 $1.89 $1.85 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	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C Time Acc. 25ppm RV-3129-C3 32.768kHz OPTION B TA QC Micro Crystal 1: $4.60 1,382In Stock	Mfr. Part No. RV-3129-C3 32.768kHz OPTION B TA QC Mouser Part No 428-203634-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 25ppm Learn More about Micro Crystal real time clock modules	Datasheet	1,382In Stock	Cut Tape $4.60 $3.45 $3.17 $2.86 Reel $2.60 View $2.71 $2.65 $2.54 $2.52 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.3 V	5.5 V	- 40 C	+ 85 C	RV-3129	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz SPI Time Acc. 25ppm AEC RV-3149-C3 32.768kHz OPTION B TB QA Micro Crystal 1: $5.21 1,442In Stock	Mfr. Part No. RV-3149-C3 32.768kHz OPTION B TB QA Mouser Part No 428-203684-MG01	Micro Crystal	Real Time Clock 32.768kHz SPI Time Acc. 25ppm AEC Learn More about Micro Crystal real time clock modules	Datasheet	1,442In Stock	Cut Tape $5.21 $3.93 $3.60 $3.25 Reel $2.99 View $3.09 $3.05 $2.92 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	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: $2.15 960In Stock	Mfr. Part No. RV-8063-C8 32.768kHz-20PPM-TA-QA Mouser Part No 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	960In Stock	Cut Tape $2.15 $1.58 $1.43 $1.26 Reel $1.13 View $1.18 $1.15 $1.08 $1.06 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	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C Time Acc. 1ppm RV-3028-C7 32.768kHz 1ppm TA QA Micro Crystal 1: $3.43 32,641On Order	Mfr. Part No. RV-3028-C7 32.768kHz 1ppm TA QA Mouser Part No 428-203603-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 1ppm Learn More about Micro Crystal rv 3028 c7	Datasheet	32,641On Order On Order Ship Dates Mfr. No: RV-3028-C7 32.768kHz 1ppm TA QA Stock: 0 On Order: 11,641 Expected 16/4/2027 21,000 Expected 14/5/2027 Factory Lead Time: 30 Weeks	Cut Tape $3.43 $2.56 $2.33 $2.09 Reel $1.89 View $1.97 $1.93 $1.85 $1.81 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.2 V	5.5 V	- 40 C	+ 85 C	RV-3028	SMD/SMT	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: $6.34 274In Stock	Mfr. Part No. RV-3149-C3 32.768kHz OPTION A TB QA Mouser Part No 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	274In Stock	Cut Tape $6.34 $4.81 $4.43 $4.01 Reel $3.73 View $3.81 $3.77 $3.62 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	Reel, Cut Tape, MouseReel
Real Time Clock 32.768 kHz +/-20 PPM SPI -40/+85C RV-8063-C7-32.768KHZ-20PPM-TA-QC Micro Crystal 1: $2.15 1,600In Stock	Mfr. Part No. RV-8063-C7-32.768KHZ-20PPM-TA-QC Mouser Part No 428-203119-MG01	Micro Crystal	Real Time Clock 32.768 kHz +/-20 PPM SPI -40/+85C Learn More about Micro Crystal real time clock modules	Datasheet	1,600In Stock	Cut Tape $2.15 $1.58 $1.43 $1.30 Reel $1.15 View $1.22 $1.19 $1.12 $1.10 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	Serial, I2C, SPI	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	RV-8063-C7	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C Time Acc. 25ppm AEC RV-3129-C3 32.768kHz OPTION B TB QA Micro Crystal 1: $5.39 490In Stock 4,000Expected 16/10/2026	Mfr. Part No. RV-3129-C3 32.768kHz OPTION B TB QA Mouser Part No 428-203639-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 25ppm AEC Learn More about Micro Crystal real time clock modules	Datasheet	490In Stock 4,000Expected 16/10/2026	Cut Tape $5.39 $4.07 $3.74 $3.37 Reel $3.10 View $3.20 $3.16 $3.03 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.3 V	5.5 V	- 40 C	+ 125 C	RV-3129	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6mm RV-3028-C8-32.768kHz-1PPM-TA-QC Micro Crystal 1: $3.94 1In Stock 3,000On Order New Product	Mfr. Part No. RV-3028-C8-32.768kHz-1PPM-TA-QC Mouser Part No 428-RV3028C81PPMTAQC New Product	Micro Crystal	Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6mm Learn More about Micro Crystal rv 3028 c8 rtc modules	Datasheet	1In Stock 3,000On Order On Order Ship Dates Mfr. No: RV-3028-C8-32.768kHz-1PPM-TA-QC Stock: 1 Can Dispatch Immediately On Order: 1,000 Expected 25/9/2026 1,000 Expected 9/10/2026 1,000 Expected 8/1/2027 Factory Lead Time: 11 Weeks	Cut Tape $3.94 $2.94 $2.69 $2.42 Reel $2.15 View $2.28 $2.22 $2.11 $2.09 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SON-8	Backup Switching	1.1 V	5.5 V	- 40 C	+ 85 C	RV-3028-C8	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C Time Acc. 6ppm AEC RV-3129-C3 32.768kHz OPTION A TB QA Micro Crystal 1: $6.13 23,509On Order	Mfr. Part No. RV-3129-C3 32.768kHz OPTION A TB QA Mouser Part No 428-203618-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 6ppm AEC Learn More about Micro Crystal real time clock modules	Datasheet	23,509On Order On Order Ship Dates Mfr. No: RV-3129-C3 32.768kHz OPTION A TB QA Stock: 0 On Order: 8,509 Pending 15,000 Expected 17/11/2026 Factory Lead Time: 9 Weeks	Cut Tape $6.13 $4.65 $4.28 $3.88 Reel $3.59 View $3.67 $3.63 $3.50 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.3 V	5.5 V	- 40 C	+ 125 C	RV-3129	SMD/SMT	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: $4.03 15,058In Stock 78,000On Order	Mfr. Part No. RV-8803-C7-32.768KHZ-3PPM-TA-QC Mouser Part No 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	15,058In Stock 78,000On Order On Order Ship Dates Mfr. No: RV-8803-C7-32.768KHZ-3PPM-TA-QC Stock: 15,058 Can Dispatch Immediately On Order: 44,000 Expected 30/4/2027 34,000 TBD Factory Lead Time: 39 Weeks	Cut Tape $4.03 $3.09 $2.86 $2.56 View Reel $2.26 $2.42 $2.38 $2.26 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 32.768kHz I2C Time Acc. 1ppm RV-3028-C7 32.768kHz 1ppm TA QC Micro Crystal 1: $3.47 197,988On Order	Mfr. Part No. RV-3028-C7 32.768kHz 1ppm TA QC Mouser Part No 428-203591-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 1ppm Learn More about Micro Crystal rv 3028 c7	Datasheet	197,988On Order On Order Ship Dates Mfr. No: RV-3028-C7 32.768kHz 1ppm TA QC Stock: 0 On Order: 93,988 Expected 23/4/2027 104,000 Expected 21/5/2027 Factory Lead Time: 34 Weeks	Cut Tape $3.47 $2.58 $2.37 $2.11 View Reel $1.93 $2.00 $1.96 $1.93 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.2 V	5.5 V	- 40 C	+ 85 C	RV-3028	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C Time Acc. 6ppm RV-3129-C3 32.768kHz OPTION A TA QC Micro Crystal 1: $5.89 8,778On Order	Mfr. Part No. RV-3129-C3 32.768kHz OPTION A TA QC Mouser Part No 428-203688-MG01	Micro Crystal	Real Time Clock 32.768kHz I2C Time Acc. 6ppm Learn More about Micro Crystal real time clock modules	Datasheet	8,778On Order On Order Ship Dates Mfr. No: RV-3129-C3 32.768kHz OPTION A TA QC Stock: 0 On Order: 3,778 Pending 5,000 Expected 30/4/2027 Factory Lead Time: 26 Weeks	Cut Tape $5.89 $4.43 $4.08 $3.67 Reel $3.35 View $3.50 $3.47 $3.30 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.3 V	5.5 V	- 40 C	+ 85 C	RV-3129	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz, 20PPM, Real-Time Clock Module with SPI-Bus RV-8063-C8 32.768kHz-20PPM-TA-QC Micro Crystal 1: $2.05 Non-Stocked	Mfr. Part No. RV-8063-C8 32.768kHz-20PPM-TA-QC Mouser Part No 428-204233-MC01	Micro Crystal	Real Time Clock 32.768kHz, 20PPM, Real-Time Clock Module with SPI-Bus Learn More about Micro Crystal rv 8063 c8 rtc modules	Datasheet	Non-Stocked	Cut Tape $2.05 $1.51 $1.35 $1.20 Reel $1.08 View $1.12 $1.11 $1.03 $1.01 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	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	Reel, Cut Tape, MouseReel

Real-Time Clock (RTC) Modules

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