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STMicroelectronics Real Time Clock

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (CLP) Filter the results in the table by unit price based on your quantity.	Qty.	RTC Bus Interface	Date Format	Time Format	Memory Size	Package / Case	Battery Backup Switching	Supply Voltage - Min	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series	Mounting Style	Packaging
Real Time Clock 64K (8Kx8) 100ns M48T08-100PC1 STMicroelectronics 1: $40.998 1.484In Stock	Mfr. Part # M48T08-100PC1 Mouser Part # 511-M48T0810PC1	STMicroelectronics	Real Time Clock 64K (8Kx8) 100ns	Datasheet	1.484In Stock	$40.998 $31.753 $30.018 $28.733 View $27.482 $26.252	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	8 kB	PCDIP-28	Integrated Battery	4.75 V	5.5 V	0 C	+ 70 C	M48T08	Through Hole	Tube
Real Time Clock 16K (2Kx8) 70ns M48T12-70PC1 STMicroelectronics 1: $45.302 864In Stock	Mfr. Part # M48T12-70PC1 Mouser Part # 511-M48T1270PC1	STMicroelectronics	Real Time Clock 16K (2Kx8) 70ns	Datasheet	864In Stock	$45.302 $32.115 $31.072 $29.623 $28.986	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	8 kB	PCDIP-24	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	M48T12	Through Hole	Tube
Real Time Clock 64K (8Kx8) 150ns M48T18-150PC1 STMicroelectronics 1: $55.414 408In Stock	Mfr. Part # M48T18-150PC1 Mouser Part # 511-M48T1815PC1	STMicroelectronics	Real Time Clock 64K (8Kx8) 150ns	Datasheet	408In Stock	$55.414 $41.854 $40.020 $39.329 View $39.307 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	8 kB	PCDIP-28	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	M48T18	Through Hole	Tube
Real Time Clock 64K (8Kx8) 100ns M48T08Y-10MH1F STMicroelectronics 1: $45.159 967In Stock	Mfr. Part # M48T08Y-10MH1F Mouser Part # 511-M48T08Y-10MH1F	STMicroelectronics	Real Time Clock 64K (8Kx8) 100ns	Datasheet	967In Stock	Cut Tape $45.159 $36.562 $34.410 $32.983 View Reel $29.008 $30.918 $29.809 $29.008 Quote MouseReel Available	Min.: 1 Mult.: 1 : 936	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	64 kB	SOX-28	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	M48T08Y	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Low-Pwr serial RTC W/ battry switchover M41T01M6F STMicroelectronics 1: $4.216 2.355In Stock	Mfr. Part # M41T01M6F Mouser Part # 511-M41T01M6F	STMicroelectronics	Real Time Clock Low-Pwr serial RTC W/ battry switchover Learn More about STMicroelectronics stm standard products	Datasheet	2.355In Stock	Cut Tape $4.216 $3.239 $2.899 $2.635 View Reel $2.141 $2.503 $2.459 $2.372 $2.141 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	8 B	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	M41T01	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 160 (20x8) M41T80M6F STMicroelectronics 1: $6.258 2.400In Stock	Mfr. Part # M41T80M6F Mouser Part # 511-M41T80M6F	STMicroelectronics	Real Time Clock Serial 160 (20x8)	Datasheet	2.400In Stock	Cut Tape $6.258 $4.842 $4.480 $4.051 View Reel $3.645 $3.865 $3.744 $3.689 $3.645 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)	20 B	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 SPI bus RTC M41T93ZQA6F STMicroelectronics 1: $8.355 1.044In Stock	Mfr. Part # M41T93ZQA6F Mouser Part # 511-M41T93ZQA6F	STMicroelectronics	Real Time Clock Serial SPI bus RTC	Datasheet	1.044In Stock	Cut Tape $8.355 $6.730 $5.973 $5.446 View Reel $4.589 $5.182 $5.171 $4.589 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	32 B		Backup Switching	2.38 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T83ZMY6F STMicroelectronics 1: $8.125 765In Stock	Mfr. Part # M41T83ZMY6F Mouser Part # 511-M41T83ZMY6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	765In Stock	Cut Tape $8.125 $6.280 $5.819 $5.303 Reel $4.567 View $4.908 $4.447 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	32 B		Backup Switching	2.38 V	5.5 V	- 40 C	+ 85 C	M41T83	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial SPI bus RTC M41T93SQA6F STMicroelectronics 1: $8.904 166In Stock	Mfr. Part # M41T93SQA6F Mouser Part # 511-M41T93SQA6F	STMicroelectronics	Real Time Clock Serial SPI bus RTC	Datasheet	166In Stock	Cut Tape $8.904 $6.862 $6.357 $5.797 $5.369 Reel $5.358 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	32 B	QFN-16	Backup Switching	3 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 256K (32Kx8) 100ns M48T37V-10MH1F STMicroelectronics 1: $25.308 360In Stock	Mfr. Part # M48T37V-10MH1F Mouser Part # 511-M48T37V-10MH1F	STMicroelectronics	Real Time Clock 256K (32Kx8) 100ns	Datasheet	360In Stock	Cut Tape $25.308 $22.091 $19.752 $18.599 View Reel $16.843 $18.138 $17.436 $16.843 Quote MouseReel Available	Min.: 1 Mult.: 1 : 936	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	256 kB	SOIC-44	Backup Switching	3 V	3.6 V	0 C	+ 70 C	M48T37V	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T82ZM6F STMicroelectronics 1: $3.898 7.928In Stock	Mfr. Part # M41T82ZM6F Mouser Part # 511-M41T82ZM6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	7.928In Stock	Cut Tape $3.898 $2.932 $2.690 $2.415 Reel $2.130 View $2.284 $2.229 $2.163 $2.097 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	32 B	SOIC-8	Backup Switching	2.38 V	5.5 V	- 40 C	+ 85 C	M41T82	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial SPI bus RTC M41T93RMY6F STMicroelectronics 1: $11.715 2.229In Stock 4.000Expected 10/13/2026	Mfr. Part # M41T93RMY6F Mouser Part # 511-M41T93RMY6F	STMicroelectronics	Real Time Clock Serial SPI bus RTC	Datasheet	2.229In Stock 4.000Expected 10/13/2026	Cut Tape $11.715 $9.146 $8.509 $7.806 View Reel $7.082 $7.466 $7.389 $7.082 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1.000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	32 B	SOX-18	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T93	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 64K (8Kx8) 100ns M48T18-100PC1 STMicroelectronics 1: $51.560 907In Stock 480Expected 10/8/2026	Mfr. Part # M48T18-100PC1 Mouser Part # 511-M48T1810PC1	STMicroelectronics	Real Time Clock 64K (8Kx8) 100ns	Datasheet	907In Stock 480Expected 10/8/2026	$51.560 $41.678 $39.120 $38.330	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	8 kB	PCDIP-28	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	M48T18	Through Hole	Tube
Real Time Clock 64K (8Kx8) 70ns M48T58Y-70MH1F STMicroelectronics 1: $25.692 1.040In Stock	Mfr. Part # M48T58Y-70MH1F Mouser Part # 511-M48T58Y-70MH1F	STMicroelectronics	Real Time Clock 64K (8Kx8) 70ns	Datasheet	1.040In Stock	Cut Tape $25.692 $20.543 $19.258 $17.842 View Reel $16.601 $17.282 $16.601 $16.601 Quote MouseReel Available	Min.: 1 Mult.: 1 : 936	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	64 kB	SOX-28	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	M48T58Y	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 512 (64x8) M41ST85WMH6F STMicroelectronics 1: $11.408 565In Stock	Mfr. Part # M41ST85WMH6F Mouser Part # 511-M41ST85WMH6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	565In Stock	Cut Tape $11.408 $8.893 $8.268 $7.576 Reel $6.774 View $7.225 $6.972 $6.621 Quote MouseReel Available	Min.: 1 Mult.: 1 : 936	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	64 B	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: $11.847 1.273In Stock	Mfr. Part # M41ST87WMX6TR Mouser Part # 511-M41ST87WMX6TR	STMicroelectronics	Real Time Clock Serial 1280 (160x8)	Datasheet	1.273In Stock	Cut Tape $11.847 $9.245 $8.597 $7.883 View Reel $7.060 $7.488 $7.345 $7.060 Quote MouseReel Available	Min.: 1 Mult.: 1 : 1.000	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	160 B	SOX-28	Backup Switching	2.7 V	3.6 V	- 40 C	+ 85 C	M41ST87W	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 128 NVRAM Serial RTC 3.0 to 3.6 Vcc M41ST87WSS6F STMicroelectronics 1: $8.531 361In 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	361In Stock 1.350On Order	Cut Tape $8.531 $6.588 $6.094 $5.567 Reel $4.776 View $5.226 $5.215 $4.535 MouseReel Available	Min.: 1 Mult.: 1 : 1.350	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	160 B	SSOP-20	Backup Switching	2.7 V	3.6 V	- 40 C	+ 85 C	M41ST87W	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 64 (8X8) M41T00M6F STMicroelectronics 1: $4.622 2.168In Stock 10.000On Order	Mfr. Part # M41T00M6F Mouser Part # 511-M41T00M6F	STMicroelectronics	Real Time Clock Serial 64 (8X8)	Datasheet	2.168In Stock 10.000On Order On Order Ship Dates Mfr. #: M41T00M6F Stock: 2.168 Can Ship Immediately On Order: 5.000 Expected 5/3/2027 5.000 TBD Factory Lead-Time: 30 Weeks	Cut Tape $4.622 $3.491 $3.217 $2.910 View Reel $2.383 $2.756 $2.690 $2.383 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Serial 2-Wire, I2C	YYYY-MM-DD	HH:MM:SS (24 hr)	8 B	SOIC-8	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	M41T00	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 2.0 to 5.5V 64 (8X8) M41T00SM6F STMicroelectronics 1: $4.688 4.754In 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	4.754In Stock 5.000Expected 11/25/2026	Cut Tape $4.688 $3.546 $3.261 $2.943 View Reel $2.525 $2.789 $2.756 $2.657 $2.525 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Serial	YYYY-MM-DD	HH:MM:SS (24 hr)	8 B	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: $5.160 4.949In Stock 12.500On Order	Mfr. Part # M41T0M6F Mouser Part # 511-M41T0M6F	STMicroelectronics	Real Time Clock Serial 64 (8X8)	Datasheet	4.949In Stock 12.500On Order On Order Ship Dates Mfr. #: M41T0M6F Stock: 4.949 Can Ship Immediately On Order: 5.000 Expected 10/19/2026 7.500 Expected 5/17/2027 Factory Lead-Time: 30 Weeks	Cut Tape $5.160 $3.898 $3.579 $3.239 View Reel $2.789 $3.074 $3.052 $2.866 $2.789 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	8 B	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: $3.964 2.817In Stock	Mfr. Part # M41T11M6F Mouser Part # 511-M41T11M6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	2.817In Stock	Cut Tape $3.964 $2.986 $2.734 $2.459 Reel $2.075 View $2.317 $2.273 $2.152 $1.987 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Serial	YY-MM-DD-dd	HH:MM:SS (24 hr)	64 B	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: $11.188 1.385In Stock	Mfr. Part # M41T11MH6F Mouser Part # 511-M41T11MH6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	1.385In Stock	Cut Tape $11.188 $8.707 $8.092 $7.400 Reel $6.610 View $7.027 $6.621 $6.192 Quote MouseReel Available	Min.: 1 Mult.: 1 : 936	Serial	YY-MM-DD-dd	HH:MM:SS (24 hr)	64 B	SOX-28	Backup Switching	2 V	5.5 V	- 40 C	+ 85 C	M41T11	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial 512 (64x8) M41T56M6F STMicroelectronics 1: $3.437 2.492In Stock 7.500On Order	Mfr. Part # M41T56M6F Mouser Part # 511-M41T56M6F	STMicroelectronics	Real Time Clock Serial 512 (64x8)	Datasheet	2.492In Stock 7.500On Order On Order Ship Dates Mfr. #: M41T56M6F Stock: 2.492 Can Ship Immediately On Order: 2.500 Expected 9/13/2027 5.000 Expected 10/4/2027 Factory Lead-Time: 30 Weeks	Cut Tape $3.437 $2.613 $2.372 $2.163 Reel $1.735 View $2.064 $2.009 $1.954 $1.713 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	64 B	SOIC-8	Backup Switching	4.5 V	5.5 V	- 40 C	+ 85 C	M41T56	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 2.0-5.5V 512 (64x8) M41T81SM6F STMicroelectronics 1: $3.173 3.436In Stock 15.000On Order	Mfr. Part # M41T81SM6F Mouser Part # 511-M41T81SM6F	STMicroelectronics	Real Time Clock 2.0-5.5V 512 (64x8)	Datasheet	3.436In Stock 15.000On Order On Order Ship Dates Mfr. #: M41T81SM6F Stock: 3.436 Can Ship Immediately On Order: 7.500 Expected 11/4/2026 7.500 Expected 7/19/2027 Factory Lead-Time: 30 Weeks	Cut Tape $3.173 $2.361 $2.152 $1.932 Reel $1.647 View $1.823 $1.790 $1.691 $1.614 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	20 B	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T81S	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Serial I2C bus RTC M41T82RM6F STMicroelectronics 1: $4.754 3.325In Stock 2.500Expected 12/28/2026	Mfr. Part # M41T82RM6F Mouser Part # 511-M41T82RM6F	STMicroelectronics	Real Time Clock Serial I2C bus RTC	Datasheet	3.325In Stock 2.500Expected 12/28/2026	Cut Tape $4.754 $3.579 $3.294 $2.975 Reel $2.547 View $2.822 $2.800 $2.635 $2.536 MouseReel Available	Min.: 1 Mult.: 1 : 2.500	Serial	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	32 B	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T82	SMD/SMT	Reel, Cut Tape, MouseReel