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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 (CLP) 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 3V/5V Real-Time Clocks DS17287-3+ Analog Devices / Maxim Integrated 1: $36.573 54In Stock	Mfr. Part # DS17287-3+ Mouser Part # 700-DS17287-3	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	54In Stock	$36.573 $29.239 $27.394 $25.385 View $24.429 $23.848	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-24	Backup Switching	2.7 V	3.7 V	0 C	+ 70 C	DS17287	Through Hole	Tube
Real Time Clock 256k Nonvolatile, Y2K-Compliant Timekeep DS1554P-70+ Analog Devices / Maxim Integrated 1: $54.942 37In Stock	Mfr. Part # DS1554P-70+ Mouser Part # 700-DS1554P-70	Analog Devices / Maxim Integrated	Real Time Clock 256k Nonvolatile, Y2K-Compliant Timekeep	Datasheet	37In Stock	$54.942 $44.895 $42.381 $41.195 View $38.308 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	PowerCap Module-34	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	DS1554P	SMD/SMT	Tray
Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi DS1556W-120IND+ Analog Devices / Maxim Integrated 1: $85.717 14In Stock	Mfr. Part # DS1556W-120IND+ Mouser Part # 700-DS1556W-120IND	Analog Devices / Maxim Integrated	Real Time Clock 1M, Nonvolatile, Y2K-Compliant Timekeepi	Datasheet	14In Stock	$85.717 $65.548 $65.537 $63.418 View Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	EDIP-32	Integrated Battery	2.97 V	3.63 V	- 40 C	+ 85 C	DS1556W	Through Hole	Tube
Real Time Clock Watchdog Clocks with NV RAM Control DS1558W+ Analog Devices / Maxim Integrated 1: $23.913 57In Stock	Mfr. Part # DS1558W+ Mouser Part # 700-DS1558W	Analog Devices / Maxim Integrated	Real Time Clock Watchdog Clocks with NV RAM Control	Datasheet	57In Stock	$23.913 $18.951 $17.710 $16.349 View $14.339 Quote	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	TQFP-48	Backup Switching	2.97 V	3.63 V	- 40 C	+ 85 C	DS1558W	SMD/SMT	Tray
Real Time Clock 3V/5V Real-Time Clocks DS17487-5+ Analog Devices / Maxim Integrated 1: $40.009 49In Stock	Mfr. Part # DS17487-5+ Mouser Part # 700-DS17487-5	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	49In Stock	$40.009 $32.071 $30.479 $28.701 View $27.394 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	EDIP-24	Integrated Battery	4.5 V	5.5 V	0 C	+ 70 C	DS17487	Through Hole	Tube
Real Time Clock 3V/5V Real-Time Clocks DS17885S-5+ Analog Devices / Maxim Integrated 1: $41.217 28In Stock	Mfr. Part # DS17885S-5+ Mouser Part # 700-DS17885S-5	Analog Devices / Maxim Integrated	Real Time Clock 3V/5V Real-Time Clocks	Datasheet	28In Stock	$41.217 $33.444 $31.336 $29.370 View $28.294 Quote	Min.: 1 Mult.: 1	Multiplexed	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SO-24	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	DS17885S	SMD/SMT	Tube
Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus RX8900SA UA0 PURE SN Epson Timing 1: $5.369 919In Stock	Mfr. Part # RX8900SA UA0 PURE SN Mouser Part # 732-RX8900SAUA0SN	Epson Timing	Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus Learn More about Epson Timing epson rx8900ce rtc modules	Datasheet	919In Stock	Cut Tape $5.369 $4.051 $3.722 $3.360 Reel $2.964 View $3.184 $3.162 $2.899 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	2.5 V	5.5 V	- 40 C	+ 85 C	RX8900CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX8804CE:XA3 REAL TIME CLOCK +/-3.4PPM DTCXO 250TR RX8804CE XA3 Epson Timing 1: $12.154 250In Stock	Mfr. Part # RX8804CE XA3 Mouser Part # 732-RX8804CEXA3	Epson Timing	Real Time Clock RX8804CE:XA3 REAL TIME CLOCK +/-3.4PPM DTCXO 250TR	Datasheet	250In Stock	Cut Tape $12.154 $9.475 $8.806 $8.070 Reel $7.697 View $7.422 $7.290 Quote	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX8804CE	SMD/SMT	Reel, Cut Tape
Real Time Clock 5+/-23PPM RTC 250TR RX-8571LC:B3 PURE SN Epson Timing 1: $7.982 844In Stock	Mfr. Part # RX-8571LC:B3 PURE SN Mouser Part # 732-RX-8571LCB3	Epson Timing	Real Time Clock 5+/-23PPM RTC 250TR Learn More about Epson Timing epson rx 8571salc rtc modules	Datasheet	844In Stock	Cut Tape $7.982 $6.160 $5.457 $5.095 Reel $4.688 View $4.622 $4.611 $4.447 Quote	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	VSOJ-12	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8571LC	SMD/SMT	Reel, Cut Tape
Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C VSOJ-12 PIN 250TR RX-8803LC:UB3 PURE SN Epson Timing 1: $12.824 469In Stock	Mfr. Part # RX-8803LC:UB3 PURE SN Mouser Part # 732-RX-8803LCUB3	Epson Timing	Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C VSOJ-12 PIN 250TR Learn More about Epson Timing epson rx 8803lc trc module	Datasheet	469In Stock	Cut Tape $12.824 $10.046 $9.355 $7.894 Reel $7.806 View $7.795 Quote	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	VSOJ-12	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8803LC	SMD/SMT	Reel, Cut Tape
Real Time Clock RX8130CE:BX REAL TIME CLOCK +/-23PPM ANY TR RX8130CE BX Epson Timing 1: $3.096 1.627In Stock	Mfr. Part # RX8130CE BX Mouser Part # 732-RX8130CEBX	Epson Timing	Real Time Clock RX8130CE:BX REAL TIME CLOCK +/-23PPM ANY TR	Datasheet	1.627In Stock	Cut Tape $3.096 $2.306 $2.130 Reel $1.867 $1.779 View $1.746 $1.658 $1.603 $1.570	Min.: 1 Mult.: 1 : 100	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.25 V	5.5 V	- 40 C	+ 85 C	RX8130CE	SMD/SMT	Reel, Cut Tape
Real Time Clock 1.6-5.5V RX8804CE:XA3 Epson Timing 1: $11.594 257In Stock	Mfr. Part # RX8804CE:XA3 Mouser Part # 732-RX8804CE:XA3	Epson Timing	Real Time Clock 1.6-5.5V Learn More about Epson Timing epson rx8804ce clock modules	Datasheet	257In Stock	Cut Tape $11.594 $9.025 $8.070 $7.949 Reel $6.752 Quote Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX8804CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus RX8900CE UA3 Epson Timing 1: $10.738 1.019In Stock	Mfr. Part # RX8900CE UA3 Mouser Part # 732-RX8900CEUA3	Epson Timing	Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus Learn More about Epson Timing epson rx8900ce rtc modules	Datasheet	1.019In Stock	Cut Tape $10.738 $8.366 $7.763 $7.532 Reel $6.401 View $6.390 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	2.5 V	5.5 V	- 40 C	+ 85 C	RX8900CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus RX8900SA UC3 PURE SN Epson Timing 1: $6.577 766In Stock	Mfr. Part # RX8900SA UC3 PURE SN Mouser Part # 732-RX8900SAUC3SN	Epson Timing	Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus Learn More about Epson Timing epson rx8900sa rtc modules	Datasheet	766In Stock	Cut Tape $6.577 $5.040 $4.655 $4.238 Reel $4.029 View $3.909 $3.865 $3.810 MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	2.5 V	5.5 V	- 40 C	+ 85 C	RX8900SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 AB-RTC-XPA-32.768KHZ-2-T1 ABRACON 1: $3.195 800In Stock New Product	Mfr. Part # AB-RTC-XPA-32.768KHZ-2-T1 Mouser Part # 815-AB-XPA-32768K2T1 New Product	ABRACON	Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 Learn More about ABRACON ultra low power rtc modules	Datasheet	800In Stock	Cut Tape $3.195 $2.383 $2.174 $1.954 Reel $1.713 View $1.845 $1.801 $1.658 $1.625 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	I2C			DFN-8	Integrated Battery	900 mV	5.5 V	- 40 C	+ 85 C	AB-RTC-XPA-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215 AB-RTC-XL-32.768KHZ-2-T1 ABRACON 1: $3.206 797In Stock New Product	Mfr. Part # AB-RTC-XL-32.768KHZ-2-T1 Mouser Part # 815-RTCXL32768KHZ2T1 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	797In Stock	Cut Tape $3.206 $2.394 $2.185 $1.965 Reel $1.746 View $1.856 $1.812 $1.680 $1.658 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	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, Cut Tape, MouseReel
Real Time Clock AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 3215 AB-RTC-XLA-32.768KHZ-2-T1 ABRACON 1: $3.371 800In Stock New Product	Mfr. Part # AB-RTC-XLA-32.768KHZ-2-T1 Mouser Part # 815-TCXLA32768KHZ2T1 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	800In Stock	Cut Tape $3.371 $2.525 $2.306 $2.075 Reel $1.812 View $1.965 $1.899 $1.779 $1.746 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	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, Cut Tape, MouseReel
Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 AB-RTC-XP-32.768KHZ-2-T1 ABRACON 1: $3.074 800In Stock New Product	Mfr. Part # AB-RTC-XP-32.768KHZ-2-T1 Mouser Part # 815-XP32762T1 New Product	ABRACON	Real Time Clock IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 Learn More about ABRACON ultra low power rtc modules	Datasheet	800In Stock	Cut Tape $3.074 $2.295 $2.097 $1.878 Reel $1.647 View $1.779 $1.735 $1.592 $1.570 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	I2C			DFN-8	Integrated Battery	900 mV	5.5 V	- 40 C	+ 85 C	AB-RTC-XP-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX4901CE XS D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS D06 Epson Timing 1: $6.511 1.922In Stock	Mfr. Part # RX4901CE XS D06 Mouser Part # 732-RX4901CEXSD06	Epson Timing	Real Time Clock RX4901CE XS D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	1.922In Stock	Cut Tape $6.511 $4.974 $4.589 $4.172 View Reel $3.513 $3.964 $3.876 $3.667 $3.513 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2.000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX4901CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK RX-8571LCB0 PURE SN Epson Timing 1: $3.964 524In Stock	Mfr. Part # RX-8571LCB0 PURE SN Mouser Part # 732-RX8571LCB0PURESN	Epson Timing	Real Time Clock RX-8571LC:B0 PURE SN 5+/-23PPM REAL TIME CLOCK Learn More about Epson Timing epson rx 8571salc rtc modules	Datasheet	524In Stock	Cut Tape $3.964 $2.975 $2.723 $2.437 Reel $1.987 View $2.306 $1.998 $1.965 $1.954 MouseReel Available	Min.: 1 Mult.: 1 : 1.000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8571LC	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX4901CEXS A0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS A06 Epson Timing 1: $6.423 1.988In Stock	Mfr. Part # RX4901CE XS A06 Mouser Part # 732-RX4901CEXSA06	Epson Timing	Real Time Clock RX4901CEXS A0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	1.988In Stock	Cut Tape $6.423 $4.897 $4.513 $4.095 View Reel $3.535 $3.887 $3.766 $3.645 $3.535 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2.000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX4901CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 250TR RX6110SA:B3 PURE SN Epson Timing 1: $5.435 413In Stock	Mfr. Part # RX6110SA:B3 PURE SN Mouser Part # 732-RX6110SAB3PURESN	Epson Timing	Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 250TR	Datasheet	413In Stock	Cut Tape $5.435 $4.139 $3.810 $3.459 Reel $3.228 View $3.151 $3.096 $3.008 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial, I2C, SPI	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX6110SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX4901CE XS B0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS B06 Epson Timing 1: $6.423 1.800In Stock	Mfr. Part # RX4901CE XS B06 Mouser Part # 732-RX4901CEXSB06	Epson Timing	Real Time Clock RX4901CE XS B0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	1.800In Stock	Cut Tape $6.423 $4.897 $4.513 $4.095 View Reel $3.513 $3.887 $3.766 $3.645 $3.513 Quote MouseReel Available	Min.: 1 Mult.: 1 : 2.000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX4901CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus AB-RTC-TH-32.768kHz-2-T3 ABRACON 1: $3.557 2.960In Stock New Product	Mfr. Part # AB-RTC-TH-32.768kHz-2-T3 Mouser Part # 815-ABRTCTH32768K2T3 New Product	ABRACON	Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus Learn More about ABRACON ab rtc tx 32 modules	Datasheet	2.960In Stock	Cut Tape $3.557 $2.657 $2.426 $2.174 Reel $1.899 View $2.064 $2.009 $1.910 $1.834 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	I2C				Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	AB-RTC-TH-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus AB-RTC-TA-32.768kHz-2-T3 ABRACON 1: $2.086 2.348In Stock New Product	Mfr. Part # AB-RTC-TA-32.768kHz-2-T3 Mouser Part # 815-ABRTCTA32768K2T3 New Product	ABRACON	Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus Learn More about ABRACON ab rtc tx 32 modules	Datasheet	2.348In Stock	Cut Tape $2.086 $1.526 $1.383 $1.230 Reel $1.091 View $1.208 $953 MouseReel Available	Min.: 1 Mult.: 1 : 3.000	I2C			SOP-8	Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	AB-RTC-TA-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel