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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 1.6-5.5V RX8804CE:XA3 Epson Timing 1: $13.73 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 $13.73 $10.69 $9.52 $9.39 Reel $7.97 View 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: $12.62 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 $12.62 $9.83 $9.13 $8.36 Reel $7.92 View $7.75 $7.57 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 3.4ppm I2C-Bus RX8900SA UA0 PURE SN Epson Timing 1: $6.36 921In 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	921In Stock	Cut Tape $6.36 $4.80 $4.41 $3.98 Reel $3.51 View $3.77 $3.74 $3.43 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 5+/-23PPM RTC 250TR RX-8571LC:B3 PURE SN Epson Timing 1: $9.45 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 $9.45 $7.29 $6.55 $6.07 Reel $5.59 View $5.53 $5.51 $5.27 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 RX8804CE:XA3 REAL TIME CLOCK +/-3.4PPM DTCXO 250TR RX8804CE XA3 Epson Timing 1: $13.73 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 $13.73 $10.69 $9.92 $9.09 Reel $8.58 View $8.57 $8.49 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 RX8804CE:XB0 REAL TIME CLOCK +/-5.0PPM DTCXO 1K TR RX8804CE XB0 Epson Timing 1: $4.91 990In Stock	Mfr. Part # RX8804CE XB0 Mouser Part # 732-RX8804CEXB0	Epson Timing	Real Time Clock RX8804CE:XB0 REAL TIME CLOCK +/-5.0PPM DTCXO 1K TR Learn More about Epson Timing epson rx8804ce clock modules	Datasheet	990In Stock	Cut Tape $4.91 $3.71 $3.41 $3.07 Reel $2.61 View $2.89 $2.81 $2.52 $2.48	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	+ 105 C		SMD/SMT	Reel, Cut Tape
Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus RX8900SA UC3 PURE SN Epson Timing 1: $7.79 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 $7.79 $5.97 $5.51 $5.02 Reel $4.77 View $4.63 $4.58 $4.51 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: $3.78 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 $3.78 $2.82 $2.57 $2.31 Reel $2.03 View $2.18 $2.13 $1.96 $1.92 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: $3.80 852In 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	852In Stock	Cut Tape $3.80 $2.83 $2.59 $2.33 Reel $2.07 View $2.20 $2.15 $1.99 $1.96 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 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 AB-RTC-XP-32.768KHZ-2-T1 ABRACON 1: $3.64 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 $3.64 $2.72 $2.48 $2.22 Reel $1.95 View $2.11 $2.05 $1.89 $1.86 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 32.768kHz-DTCXO 3.4ppm I2C-Bus RX8900SA UA3 PURE SN Epson Timing 1: $12.92 14In Stock	Mfr. Part # RX8900SA UA3 PURE SN Mouser Part # 732-RX8900SAUA3SN	Epson Timing	Real Time Clock 32.768kHz-DTCXO 3.4ppm I2C-Bus Learn More about Epson Timing epson rx8900sa rtc modules	Datasheet	14In Stock	Cut Tape $12.92 $10.05 $9.33 $8.54 Reel $8.10 View $7.94 $7.75 Quote 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 32.768kHz-DTCXO 5ppm I2C-Bus RX8900SA UB0 PURE SN Epson Timing 1: $3.97 539In Stock	Mfr. Part # RX8900SA UB0 PURE SN Mouser Part # 732-RX8900SAUB0SN	Epson Timing	Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus Learn More about Epson Timing epson rx8900sa rtc modules	Datasheet	539In Stock	Cut Tape $3.97 $2.96 $2.70 $2.43 Reel $2.08 View $2.30 $2.29 $2.03 $1.98 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	RX8900SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 3.8ppm 1.6-5.5V RX8804CE:XB3 Epson Timing 1: $10.02 277In Stock 250Expected 2/15/2027	Mfr. Part # RX8804CE:XB3 Mouser Part # 732-RX8804CE:XB3	Epson Timing	Real Time Clock 3.8ppm 1.6-5.5V Learn More about Epson Timing epson rx8804ce clock modules	Datasheet	277In Stock 250Expected 2/15/2027	Cut Tape $10.02 $7.72 $6.86 $6.41 Reel $5.92 MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial 2-Wire, 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 RX4901CE XS B0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS B06 Epson Timing 1: $7.61 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 $7.61 $5.80 $5.34 $4.85 View Reel $4.21 $4.60 $4.46 $4.34 $4.21 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 RX4901CE XS D0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS D06 Epson Timing 1: $7.71 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 $7.71 $5.89 $5.43 $4.94 View Reel $4.16 $4.69 $4.59 $4.32 $4.16 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: $4.69 459In 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	459In Stock	Cut Tape $4.69 $3.52 $3.22 $2.89 Reel $2.35 View $2.73 $2.37 $2.33 $2.31 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: $7.61 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 $7.61 $5.80 $5.34 $4.85 View Reel $4.23 $4.60 $4.46 $4.34 $4.23 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: $6.44 411In 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	411In Stock	Cut Tape $6.44 $4.90 $4.51 $4.10 Reel $3.82 View $3.73 $3.67 $3.56 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 Built-In TXCO Real Time Clock Module with I2C Bus AB-RTC-TH-32.768kHz-2-T3 ABRACON 1: $4.29 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 $4.29 $3.21 $2.94 $2.65 Reel $2.41 View $2.51 $2.44 $2.42 $2.31 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 RTC TCXO I2C 3ppm 3215 AB-RTC-TN-32.768kHz-2-T1 ABRACON 1: $6.79 826In Stock New Product	Mfr. Part # AB-RTC-TN-32.768kHz-2-T1 Mouser Part # 815-ABRTCTN32768K2T1 New Product	ABRACON	Real Time Clock RTC TCXO I2C 3ppm 3215 Learn More about ABRACON ab rtc tn real time clocks	Datasheet	826In Stock	Cut Tape $6.79 $5.17 $4.77 $4.33 Reel $3.97 View $4.12 $4.02 $3.84 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C			DFN-8	Backup Switching	1.5 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RTC TCXO I2C 3ppm 3215 AEC-Q200 AB-RTC-TNA-32.768kHz-2-T1 ABRACON 1: $7.07 990In Stock New Product	Mfr. Part # AB-RTC-TNA-32.768kHz-2-T1 Mouser Part # 815-BRTCTNA32768K2T1 New Product	ABRACON	Real Time Clock RTC TCXO I2C 3ppm 3215 AEC-Q200 Learn More about ABRACON ab rtc tn real time clocks	Datasheet	990In Stock	Cut Tape $7.07 $5.40 $4.97 $4.51 Reel $4.13 View $4.29 $4.19 $4.00 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C			DFN-8	Backup Switching	1.5 V	5.5 V	- 40 C	+ 85 C		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: $2.47 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 $2.47 $1.81 $1.64 $1.46 Reel $1.29 View $1.43 $1.13 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
Real Time Clock Built-In TXCO Real Time Clock Module with I2C Bus AB-RTC-TC-32.768kHz-2-T ABRACON 1: $4.77 2,049In Stock New Product	Mfr. Part # AB-RTC-TC-32.768kHz-2-T Mouser Part # 815-ABRTCTC32768K2T3 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	2,049In Stock	Cut Tape $4.77 $3.60 $3.30 $2.99 Reel $2.64 View $2.83 $2.74 $2.54 MouseReel Available	Min.: 1 Mult.: 1 : 1,300	I2C				Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	AB-RTC-TC-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Built-In XO Real Time Clock Module with I2C Bus AB-RTC-XB-32.768kHz-2-T3 ABRACON 1: $3.45 1,968In Stock New Product	Mfr. Part # AB-RTC-XB-32.768kHz-2-T3 Mouser Part # 815-ABRTCXB32768K2T3 New Product	ABRACON	Real Time Clock Built-In XO Real Time Clock Module with I2C Bus Learn More about ABRACON ab rtc xb 32 module	Datasheet	1,968In Stock	Cut Tape $3.45 $2.56 $2.34 $2.09 Reel $1.90 View $1.99 $1.91 $1.89 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	I2C				Backup Switching	1.2 V	5.5 V	- 40 C	+ 85 C	AB-RTC-XB-32.768kHz-2	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.7mm RV-8263-C8 32.768kHz-20PPM-TA-QC Micro Crystal 1: $1.96 4,320In Stock	Mfr. Part # RV-8263-C8 32.768kHz-20PPM-TA-QC Mouser Part # 428-204208-MC01	Micro Crystal	Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.7mm Learn More about Micro Crystal rv 8263 c8 rtc modules	Datasheet	4,320In Stock	Cut Tape $1.96 $1.44 $1.29 $1.14 Reel $1.03 View $1.07 $1.03 $0.974 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SON-8		900 mV	5.5 V	- 40 C	+ 85 C	RV-8263-C8	SMD/SMT	Reel, Cut Tape, MouseReel