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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 I2C Bus 5 +/-23ppm RX-8025SA:AA0 Epson Timing 1: $4.10 1,052In Stock	Mfr. Part No. RX-8025SA:AA0 Mouser Part No 732-RX-8025SA:AA0	Epson Timing	Real Time Clock I2C Bus 5 +/-23ppm Learn More about Epson Timing epson rx 8025sa rtc modules	Datasheet	1,052In Stock	Cut Tape $4.10 $3.09 $2.84 $2.56 Reel $2.27 View $2.43 $2.41 $2.22 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOP-14	No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C	RX-8025SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250TR RX-8803SA:UB3 PURE SN Epson Timing 1: $4.71 976In Stock	Mfr. Part No. RX-8803SA:UB3 PURE SN Mouser Part No 732-RX-8803SAUB3	Epson Timing	Real Time Clock I2C-BUS RTC +/-5.0PPM-30 70C SOP-14 PIN 250TR	Datasheet	976In Stock	Cut Tape $4.71 $3.56 $3.27 $2.96 Reel $2.81 View $2.69 $2.52	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOP-14	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-8803SA	SMD/SMT	Reel, Cut Tape
Real Time Clock RX4111CE:A3 REAL TIME CLOCK SPI-BUS 3.0V 11.5PPM 250TR RX4111CE A3 Epson Timing 1: $4.74 2,235In Stock	Mfr. Part No. RX4111CE A3 Mouser Part No 732-RX4111CEA3	Epson Timing	Real Time Clock RX4111CE:A3 REAL TIME CLOCK SPI-BUS 3.0V 11.5PPM 250TR Learn More about Epson Timing epson rx4111ce rx8111ce rtc modules	Datasheet	2,235In Stock	Cut Tape $4.74 $3.57 $3.28 $2.89 Reel $2.86 MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial 4-Wire, SPI				Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX4111CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX4901CE XS C0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR RX4901CE XS C06 Epson Timing 1: $5.85 636In Stock	Mfr. Part No. RX4901CE XS C06 Mouser Part No 732-RX4901CEXSC06	Epson Timing	Real Time Clock RX4901CE XS C0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	636In Stock	Cut Tape $5.85 $4.46 $4.11 $3.73 View Reel $3.30 $3.48 $3.32 $3.31 $3.30 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 1K TR RX6110SA:B0 PURE SN Epson Timing 1: $1.63 1,333In Stock	Mfr. Part No. RX6110SA:B0 PURE SN Mouser Part No 732-RX6110SAB0PURESN	Epson Timing	Real Time Clock REAL TIME CLOCK 3.0V 5+/-23PPM 1K TR	Datasheet	1,333In Stock	Cut Tape $1.63 $1.33 $1.26 $1.19 Reel $1.17 View $1.18 $1.16 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	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 32.768kHz 5ppm I2C-Bus RX8130CE B0 Epson Timing 1: $1.42 16,409In Stock	Mfr. Part No. RX8130CE B0 Mouser Part No 732-RX8130CEB0	Epson Timing	Real Time Clock 32.768kHz 5ppm I2C-Bus	Datasheet	16,409In Stock	Cut Tape $1.42 $1.03 $0.931 $0.825 Reel $0.719 View $0.774 $0.744 $0.687 $0.676 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	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, MouseReel
Real Time Clock 32.768kHz 5ppm I2C-Bus RX8130CE B3 Epson Timing 1: $2.82 1,688In Stock	Mfr. Part No. RX8130CE B3 Mouser Part No 732-RX8130CEB3	Epson Timing	Real Time Clock 32.768kHz 5ppm I2C-Bus	Datasheet	1,688In Stock	Cut Tape $2.82 $2.10 $1.93 $1.73 Reel $1.65 View $1.57 $1.51 $1.46 $1.45 MouseReel Available	Min.: 1 Mult.: 1 : 250	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, MouseReel
Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 1K T/R RX8900CE:UB0 Epson Timing 1: $2.90 1,136In Stock	Mfr. Part No. RX8900CE:UB0 Mouser Part No 732-RX8900CE:UB0	Epson Timing	Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 1K T/R Learn More about Epson Timing epson rx8900ce rtc modules	Datasheet	1,136In Stock	Cut Tape $2.90 $2.16 $1.98 $1.78 Reel $1.57 View $1.68 $1.62 $1.43 $1.41 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 I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 2K T/R RX8900CE:UB6 Epson Timing 1: $2.84 2,002In Stock 2,000Expected 10/05/2027	Mfr. Part No. RX8900CE:UB6 Mouser Part No 732-RX8900CE:UB6	Epson Timing	Real Time Clock I2C-BUS RTC +/-5.0PPM-40 85C 10 PIN 2K T/R Learn More about Epson Timing epson rx8900ce rtc modules	Datasheet	2,002In Stock 2,000Expected 10/05/2027	Cut Tape $2.84 $2.12 $1.94 $1.74 View Reel $1.50 $1.65 $1.59 $1.58 $1.50 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	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	RX8900CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX8901CE:XB A0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-5ppm 2k TR RX8901CE XB A06 Epson Timing 1: $4.51 3,163In Stock	Mfr. Part No. RX8901CE XB A06 Mouser Part No 732-RX8901CEXBA06	Epson Timing	Real Time Clock RX8901CE:XB A0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-5ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	3,163In Stock	Cut Tape $4.51 $3.41 $3.13 $2.83 Reel $2.54 View $2.76 $2.70 $2.37 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	RX8901CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX8901CE XB B0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-5ppm 2k TR RX8901CE XB B06 Epson Timing 1: $4.51 832In Stock	Mfr. Part No. RX8901CE XB B06 Mouser Part No 732-RX8901CEXBB06	Epson Timing	Real Time Clock RX8901CE XB B0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-5ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	832In Stock	Cut Tape $4.51 $3.41 $3.13 $2.83 Reel $2.40 View $2.69 $2.65 $2.56 $2.37 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX8901CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface in HWSON8 package. PCF85063TP/1Z NXP Semiconductors 1: $1.01 1In Stock 76,000Expected 19/04/2027	Mfr. Part No. PCF85063TP/1Z Mouser Part No 771-PCF85063TP/1Z	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface in HWSON8 package.	Datasheet	1In Stock 76,000Expected 19/04/2027	Cut Tape $1.01 $0.704 $0.633 $0.555 View Reel $0.445 $0.517 $0.495 $0.476 $0.465 $0.445 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	HWSON-8	No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C	PCF85063TP	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock Clock VCXO PT7C433833AZEEX Diodes Incorporated 1: $1.47 1,477In Stock Factory Special Order	Mfr. Part No. PT7C433833AZEEX Mouser Part No 729-PT7C433833AZEEX Factory Special Order	Diodes Incorporated	Real Time Clock Clock VCXO Learn More about Diodes Incorporated diodes timing solutions	Datasheet	1,477In Stock	Cut Tape $1.47 $1.06 $0.958 $0.846 Reel View $0.793 $0.761 $0.727 $0.706 $0.696	Min.: 1 Mult.: 1 : 3,000	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TDFN-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape
Real Time Clock Real Time Clock PT7C4363BWEX Diodes Incorporated 1: $1.23 1,752In Stock Factory Special Order	Mfr. Part No. PT7C4363BWEX Mouser Part No 729-PT7C4363BWEX Factory Special Order	Diodes Incorporated	Real Time Clock Real Time Clock Learn More about Diodes Incorporated diodes timing solutions	Datasheet	1,752In Stock	Cut Tape $1.23 $0.885 $0.801 $0.707 Reel View $0.663 $0.636 $0.608 $0.59 $0.576 MouseReel Available	Min.: 1 Mult.: 1 : 2,500	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	No Backup Switching	1.3 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RTC SON 14PIN 5+/-23PPM 250TR RX-4571SA:B3 PURE SN Epson Timing 1: $3.82 15In Stock 500Expected 25/11/2026	Mfr. Part No. RX-4571SA:B3 PURE SN Mouser Part No 732-RX-4571SAB3	Epson Timing	Real Time Clock RTC SON 14PIN 5+/-23PPM 250TR	Datasheet	15In Stock 500Expected 25/11/2026	Cut Tape $3.82 $2.86 $2.62 $2.36 Reel $2.22 View $2.10 $2.00 $1.98	Min.: 1 Mult.: 1 : 250	Serial 3-Wire	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOP-14	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX-4571SA	SMD/SMT	Reel, Cut Tape
Real Time Clock 32.768KHz 3.0Volts 5+/-5ppm -40C +85C RX-8025SA:AA3 Epson Timing 1: $9.12 453In Stock 500Expected 17/05/2027	Mfr. Part No. RX-8025SA:AA3 Mouser Part No 732-RX-8025SA:AA3	Epson Timing	Real Time Clock 32.768KHz 3.0Volts 5+/-5ppm -40C +85C Learn More about Epson Timing epson rx 8025sa rtc modules	Datasheet	453In Stock 500Expected 17/05/2027	Cut Tape $9.12 $7.07 $6.56 $5.28 Reel $5.18 MouseReel Available	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOP-14	No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C	RX-8025SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLOCK 0+/-5PPM (SOP 14 PIN) 1K TR RX-8025SA:AC0 Epson Timing 1: $4.14 333In Stock	Mfr. Part No. RX-8025SA:AC0 Mouser Part No 732-RX-8025SA:AC0	Epson Timing	Real Time Clock REAL TIME CLOCK 0+/-5PPM (SOP 14 PIN) 1K TR Learn More about Epson Timing epson rx 8025sa rtc modules	Datasheet	333In Stock	Cut Tape $4.14 $3.12 $2.87 $2.59 Reel $2.29 View $2.46 $2.42 $2.23 $2.15 MouseReel Available	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.7 V	5.5 V	- 40 C	+ 85 C	RX-8025SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 3.0Volt -40 to 85C I2C BUS RX-8035SA:B3 PURE SN Epson Timing 1: $7.26 206In Stock 250Expected 01/03/2027	Mfr. Part No. RX-8035SA:B3 PURE SN Mouser Part No 732-RX-8035SA:B3	Epson Timing	Real Time Clock 3.0Volt -40 to 85C I2C BUS	Datasheet	206In Stock 250Expected 01/03/2027	Cut Tape $7.26 $5.58 $5.16 $4.61 Reel $4.46 View $4.41 $4.31 $4.30 MouseReel Available	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOP-14	Backup Switching	2.4 V	5.5 V	- 40 C	+ 85 C	RX-8035SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX8111CE:A3 REAL TIME CLOCK I2C-BUS 3.0V 11.5PPM 250TR RX8111CE A3 Epson Timing 1: $4.04 90In Stock 500Expected 04/05/2027	Mfr. Part No. RX8111CE A3 Mouser Part No 732-RX8111CEA3	Epson Timing	Real Time Clock RX8111CE:A3 REAL TIME CLOCK I2C-BUS 3.0V 11.5PPM 250TR Learn More about Epson Timing epson rx4111ce rx8111ce rtc modules	Datasheet	90In Stock 500Expected 04/05/2027	Cut Tape $4.04 $3.05 $2.80 $2.53 Reel $2.39 View $2.29 $2.17 $2.12 $2.11 MouseReel Available	Min.: 1 Mult.: 1 : 250	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RX8111CE	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: $3.61 459In Stock	Mfr. Part No. RX-8571LCB0 PURE SN Mouser Part No 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 $3.61 $2.71 $2.48 $2.22 Reel $1.81 View $2.10 $1.82 $1.79 $1.78 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 5+/-23PPM REAL TIME CLOCK 1K TR RX-8571SA:B0 PURE SN Epson Timing 1: $3.12 179In Stock	Mfr. Part No. RX-8571SA:B0 PURE SN Mouser Part No 732-RX8571SAB0PURESN	Epson Timing	Real Time Clock 5+/-23PPM REAL TIME CLOCK 1K TR Learn More about Epson Timing epson rx 8571salc rtc modules	Datasheet	179In Stock	Cut Tape $3.12 $2.40 $2.21 $2.01 Reel $1.75 View $1.91 $1.84 $1.70 $1.68 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-8571SA	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz +/-5ppm -40C +85C RX8900CE:UB3 Epson Timing 1: $5.83 27In Stock	Mfr. Part No. RX8900CE:UB3 Mouser Part No 732-RX8900CE:UB3	Epson Timing	Real Time Clock 32.768kHz +/-5ppm -40C +85C Learn More about Epson Timing epson rx8900ce rtc modules	Datasheet	27In Stock	Cut Tape $5.83 $4.46 $4.20 $3.74 Reel $3.56 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	RX8900CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus RX8900SA UB3 PURE SN Epson Timing 1: $6.12 117In Stock	Mfr. Part No. RX8900SA UB3 PURE SN Mouser Part No 732-RX8900SAUB3SN	Epson Timing	Real Time Clock 32.768kHz-DTCXO 5ppm I2C-Bus Learn More about Epson Timing epson rx8900sa rtc modules	Datasheet	117In Stock	Cut Tape $6.12 $4.69 $4.34 $3.95 Reel $3.75 View $3.54 $3.48 $3.40 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 RX8901CE XS B0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-3ppm 2k TR RX8901CE XS B06 Epson Timing 1: $6.40 3In Stock 2,000On Order	Mfr. Part No. RX8901CE XS B06 Mouser Part No 732-RX8901CEXSB06	Epson Timing	Real Time Clock RX8901CE XS B0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	3In Stock 2,000On Order	Cut Tape $6.40 $4.90 $4.53 $3.90 View Reel $3.42 $3.88 $3.66 $3.42 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	1.6 V	5.5 V	- 40 C	+ 105 C	RX8901CE	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock RX8111CE:A0 REAL TIME CLOCK I2C-BUS 3.0V 11.5PPM 1K TR Epson Timing RX8111CE A0 RX8111CE A0 Epson Timing 1: $2.04 372In Stock 1,000Expected 14/12/2026	Mfr. Part No. RX8111CE A0 Mouser Part No 732-RX8111CEA0	Epson Timing	Real Time Clock RX8111CE:A0 REAL TIME CLOCK I2C-BUS 3.0V 11.5PPM 1K TR Learn More about Epson Timing epson rx4111ce rx8111ce rtc modules	Datasheet	372In Stock 1,000Expected 14/12/2026	Cut Tape $2.04 $1.50 $1.36 $1.22 Reel $1.07 View $1.14 $1.10 $1.02 $1.00	Min.: 1 Mult.: 1 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RTC	SMD/SMT	Reel, Cut Tape