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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 (CAD) 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 RX8130CE:BX REAL TIME CLOCK +/-23PPM ANY TR RX8130CE BX Epson Timing 1: $4.06 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 $4.06 $3.02 $2.79 Reel $2.45 $2.33 View $2.29 $2.17 $2.10 $2.06	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: $15.21 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 $15.21 $11.84 $10.54 $10.40 Reel $8.83 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: $13.98 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 $13.98 $10.89 $10.11 $9.26 Reel $8.77 View $8.58 $8.38 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: $7.04 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 $7.04 $5.31 $4.88 $4.41 Reel $3.89 View $4.18 $4.15 $3.80 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 32.768kHz-DTCXO 5ppm I2C-Bus RX8900SA UC3 PURE SN Epson Timing 1: $8.63 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 $8.63 $6.61 $6.11 $5.56 Reel $5.28 View $5.13 $5.07 $5.00 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 RX8804CE:XA3 REAL TIME CLOCK +/-3.4PPM DTCXO 250TR RX8804CE XA3 Epson Timing 1: $15.21 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 $15.21 $11.84 $10.99 $10.07 Reel $9.50 View $9.49 $9.40 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 32.768kHz-DTCXO 3.4ppm I2C-Bus RX8900SA UA3 PURE SN Epson Timing 1: $14.31 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 $14.31 $11.13 $10.34 $9.46 Reel $8.97 View $8.80 $8.58 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 AECQ-200 IC RTC Ultra small Low Power CLK/CALENDAR I2C MODULE 2012 AB-RTC-XPA-32.768KHZ-2-T1 ABRACON 1: $4.19 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 $4.19 $3.12 $2.85 $2.56 Reel $2.25 View $2.42 $2.36 $2.17 $2.13 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: $4.20 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 $4.20 $3.14 $2.87 $2.58 Reel $2.29 View $2.43 $2.38 $2.20 $2.17 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: $4.03 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 $4.03 $3.01 $2.75 $2.46 Reel $2.16 View $2.33 $2.28 $2.09 $2.06 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 RX4901CEXS A0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS A06 Epson Timing 1: $8.42 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 $8.42 $6.42 $5.92 $5.37 View Reel $4.68 $5.10 $4.94 $4.81 $4.68 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: $7.13 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 $7.13 $5.43 $5.00 $4.54 Reel $4.23 View $4.13 $4.06 $3.95 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: $8.42 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 $8.42 $6.42 $5.92 $5.37 View Reel $4.67 $5.10 $4.94 $4.81 $4.67 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: $8.54 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 $8.54 $6.52 $6.02 $5.47 View Reel $4.61 $5.20 $5.08 $4.78 $4.61 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: $5.20 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 $5.20 $3.90 $3.57 $3.20 Reel $2.61 View $3.02 $2.62 $2.58 $2.56 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 32.768kHz-DTCXO 5ppm I2C-Bus RX8900SA UB0 PURE SN Epson Timing 1: $4.39 543In 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	543In Stock	Cut Tape $4.39 $3.28 $3.00 $2.69 Reel $2.30 View $2.55 $2.53 $2.25 $2.19 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: $11.10 277In Stock	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	Cut Tape $11.10 $8.55 $7.60 $7.10 Reel $6.55 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 Built-In TXCO Real Time Clock Module with I2C Bus AB-RTC-TH-32.768kHz-2-T3 ABRACON 1: $4.75 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 $4.75 $3.56 $3.25 $2.94 Reel $2.66 View $2.78 $2.71 $2.68 $2.56 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: $7.52 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 $7.52 $5.73 $5.28 $4.80 Reel $4.39 View $4.56 $4.45 $4.25 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: $7.83 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 $7.83 $5.98 $5.50 $5.00 Reel $4.58 View $4.75 $4.64 $4.44 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: $2.74 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 $2.74 $2.00 $1.81 $1.61 Reel $1.43 View $1.58 $1.25 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: $5.28 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 $5.28 $3.99 $3.66 $3.31 Reel $2.92 View $3.14 $3.04 $2.81 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: $3.82 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 $3.82 $2.84 $2.59 $2.32 Reel $2.10 View $2.20 $2.12 $2.09 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: $2.17 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 $2.17 $1.60 $1.43 $1.27 Reel $1.14 View $1.19 $1.14 $1.08 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
Real Time Clock I2C GP RTCC 64B SRAM MCP7940NT-I/SN Microchip Technology 1: $1.32 41,826In Stock	Mfr. Part # MCP7940NT-I/SN Mouser Part # 579-MCP7940NT-I/SN	Microchip Technology	Real Time Clock I2C GP RTCC 64B SRAM Learn More about Microchip Technology microchip mcp7940n calendar	Datasheet	41,826In Stock	Cut Tape $1.32 Reel $1.11 MouseReel Available	Min.: 1 Mult.: 1 : 3,300	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape, MouseReel