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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 (SEK) 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	Time Keeping Current	Packaging
Real Time Clock RTCs 3725 10-SMD I2C HH:MM:SS (12/24 hr) YY-MM-DD-dd AB-RTCMC-32.768KHZ-EOZ9-S3-HAT ABRACON 1: 92,48 kr 2 000Expected 2027-05-11	Mfr. Part No. AB-RTCMC-32.768KHZ-EOZ9-S3-HAT Mouser Part No 815-2768KHZEOZ9S3HAT	ABRACON	Real Time Clock RTCs 3725 10-SMD I2C HH:MM:SS (12/24 hr) YY-MM-DD-dd	Datasheet	2 000Expected 2027-05-11	Cut Tape 92,48 kr 72,00 kr 66,83 kr 61,20 kr Reel 52,88 kr View 59,63 kr 55,24 kr 51,75 kr Quote MouseReel Available	Min.: 1 Mult.: 1 : 1 000	Serial 4-Wire, SPI	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.1 V	5.5 V	- 40 C	+ 85 C	AB-RTCMC	SMD/SMT	2.5 uA	Reel, Cut Tape, MouseReel
Real Time Clock 2-Wire Real Time Clock IC RS5C372B-E2-F Nisshinbo 1: 15,86 kr 1 984Expected 2026-11-20	Mfr. Part No. RS5C372B-E2-F Mouser Part No 848-RS5C372B-E2-F	Nisshinbo	Real Time Clock 2-Wire Real Time Clock IC	Datasheet	1 984Expected 2026-11-20	Cut Tape 15,86 kr 11,59 kr 10,54 kr 9,29 kr Reel 7,64 kr View 8,74 kr 8,39 kr 7,67 kr 7,58 kr MouseReel Available	Min.: 1 Mult.: 1 : 2 000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SSOP-8	Backup Switching	2 V	6 V	- 40 C	+ 85 C	RS5C372	SMD/SMT	800 nA	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.7 AEC-Q200 RV-8263-C8 32.768kHz-20PPM-TA-QA Micro Crystal 1: 19,24 kr 4 000On Order	Mfr. Part No. RV-8263-C8 32.768kHz-20PPM-TA-QA Mouser Part No 428-204291-MC01	Micro Crystal	Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.7 AEC-Q200 Learn More about Micro Crystal rv 8263 c8 rtc modules	Datasheet	4 000On Order	Cut Tape 19,24 kr 14,06 kr 12,71 kr 11,23 kr Reel 10,13 kr View 10,54 kr 10,14 kr 9,77 kr 9,66 kr 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	190 nA	Reel, Cut Tape, MouseReel
Real Time Clock RV-8263-C7-32.768KHZ-20PPM-TA-QA Micro Crystal 1: 20,70 kr 2 000Expected 2026-11-20	Mfr. Part No. RV-8263-C7-32.768KHZ-20PPM-TA-QA Mouser Part No 428-8263C7328K20PTQA	Micro Crystal	Real Time Clock Learn More about Micro Crystal rv8263c7 realtime clock modules	Datasheet	2 000Expected 2026-11-20	20,70 kr 15,19 kr 13,73 kr 12,26 kr View 11,48 kr 11,07 kr 10,91 kr 10,40 kr 10,19 kr	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		No Backup Switching	900 mV	5.5 V	- 40 C	+ 85 C		SMD/SMT	190 nA
Real Time Clock RV-8803-C7, Real-Time Clock, I C-bus, 3ppm @ -40 to +85C (SMD 3.2 x 1.5 x 0.8) RV-8803-C7-TA-QC Micro Crystal 1: 39,83 kr 4 510On Order	Mfr. Part No. RV-8803-C7-TA-QC Mouser Part No 428-RV-8803-C7-TA-QC	Micro Crystal	Real Time Clock RV-8803-C7, Real-Time Clock, I C-bus, 3ppm @ -40 to +85C (SMD 3.2 x 1.5 x 0.8)	Datasheet	4 510On Order On Order Ship Dates Mfr. No: RV-8803-C7-TA-QC Stock: 0 On Order: 1 510 Expected 2027-04-02 1 000 Expected 2027-04-16 2 000 Expected 2027-09-27 Factory Lead Time: 45 Weeks	Cut Tape 39,83 kr 29,70 kr 27,11 kr 24,30 kr 23,74 kr Reel 20,03 kr	Min.: 1 Mult.: 1 : 1 000										RV-8803-C7	SMD/SMT	240 nA	Reel, Cut Tape
Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6mm RV-3028-C8-32.768kHz-1PPM-TA-QC Micro Crystal 1: 35,21 kr 5 985On Order New Product	Mfr. Part No. RV-3028-C8-32.768kHz-1PPM-TA-QC Mouser Part No 428-RV3028C81PPMTAQC New Product	Micro Crystal	Real Time Clock 32.768kHz I2C 20ppm 2.0x1.2x0.6mm Learn More about Micro Crystal rv 3028 c8 rtc modules	Datasheet	5 985On Order On Order Ship Dates Mfr. No: RV-3028-C8-32.768kHz-1PPM-TA-QC Stock: 0 On Order: 2 985 Expected 2027-02-09 1 000 Expected 2027-02-12 2 000 Expected 2027-02-26 Factory Lead Time: 15 Weeks	Cut Tape 35,21 kr 26,21 kr 24,08 kr 21,60 kr Reel 19,24 kr View 20,36 kr 19,80 kr 18,79 kr 18,68 kr MouseReel Available	Min.: 1 Mult.: 1 : 1 000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SON-8	Backup Switching	1.1 V	5.5 V	- 40 C	+ 85 C	RV-3028-C8	SMD/SMT	70 nA	Reel, Cut Tape, MouseReel
Real Time Clock Serial Access Real Time Clock M41T81SMY6F STMicroelectronics 1: 97,54 kr 2 000Expected 2027-06-14	Mfr. Part No. M41T81SMY6F Mouser Part No 511-M41T81SMY6F	STMicroelectronics	Real Time Clock Serial Access Real Time Clock	Datasheet	2 000Expected 2027-06-14	Cut Tape 97,54 kr 76,05 kr 70,65 kr 64,69 kr 62,44 kr Reel 58,84 kr MouseReel Available	Min.: 1 Mult.: 1 : 1 000	I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOX-18	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	M41T81S	SMD/SMT	100 uA	Reel, Cut Tape, MouseReel
Real Time Clock RTC IC with 400 kHz I2C interface featuring 128 byte SRAM in HVSON12 package. PCF85053ATKJ NXP Semiconductors 1: 18,23 kr 11 985Expected 2027-01-04	Mfr. Part No. PCF85053ATKJ Mouser Part No 771-PCF85053ATKJ	NXP Semiconductors	Real Time Clock RTC IC with 400 kHz I2C interface featuring 128 byte SRAM in HVSON12 package. Learn More about NXP Semiconductors nxp pcf85053a rtc	Datasheet	11 985Expected 2027-01-04	Cut Tape 18,23 kr 13,39 kr 12,15 kr 10,83 kr View Reel 8,88 kr 10,16 kr 9,78 kr 9,62 kr 9,05 kr 8,88 kr MouseReel Available	Min.: 1 Mult.: 1 : 6 000										PCF85053A	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock LW PWR RTC W/RESEAL 8LD ISL12008IB8Z-T Renesas / Intersil 1: 31,28 kr 2 499Expected 2026-11-23	Mfr. Part No. ISL12008IB8Z-T Mouser Part No 968-ISL12008IB8Z-T	Renesas / Intersil	Real Time Clock LW PWR RTC W/RESEAL 8LD	Datasheet	2 499Expected 2026-11-23	Cut Tape 31,28 kr 23,29 kr 21,26 kr 19,13 kr Reel 16,20 kr View 18,11 kr 17,66 kr 16,76 kr 15,86 kr MouseReel Available	Min.: 1 Mult.: 1 : 2 500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	ISL12008	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L ISL12022IBZ-T Renesas / Intersil 1: 50,51 kr 2 467Expected 2027-01-12	Mfr. Part No. ISL12022IBZ-T Mouser Part No 968-ISL12022IBZ-T	Renesas / Intersil	Real Time Clock REAL TIME CLK/CLNDR W/TEMP COMP 8 L	Datasheet	2 467Expected 2027-01-12	Cut Tape 50,51 kr 38,36 kr 35,44 kr 32,18 kr 31,84 kr Reel 31,84 kr MouseReel Available	Min.: 1 Mult.: 1 : 2 500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-8	Backup Switching	2.7 V	5.5 V	- 40 C	+ 85 C	ISL12022	SMD/SMT		Reel, Cut Tape, MouseReel
Real Time Clock RTC I2c Serial IC 1.8 to 5.5V 32kHz 1337AGDCGI8 Renesas Electronics 1: 33,86 kr 2 700Expected 2028-03-13	Mfr. Part No. 1337AGDCGI8 Mouser Part No 972-1337AGDCGI8	Renesas Electronics	Real Time Clock RTC I2c Serial IC 1.8 to 5.5V 32kHz	Datasheet	2 700Expected 2028-03-13	Cut Tape 33,86 kr 25,20 kr 23,18 kr 20,70 kr View Reel 18,23 kr 19,58 kr 19,13 kr 18,34 kr 18,23 kr MouseReel Available	Min.: 1 Mult.: 1 : 3 000				SOIC-8						1337AGD	SMD/SMT	725 nA	Reel, Cut Tape, MouseReel
Real Time Clock .9RTC BASE 1338-31DCGI Renesas Electronics 1: 37,69 kr 1 305Expected 2028-04-19	Mfr. Part No. 1338-31DCGI Mouser Part No 972-1338-31DCGI	Renesas Electronics	Real Time Clock .9RTC BASE	Datasheet	1 305Expected 2028-04-19	37,69 kr 28,24 kr 24,75 kr 22,84 kr View 21,83 kr 21,71 kr	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	Backup Switching	1.3 V	3.7 V	- 40 C	+ 85 C	1338	SMD/SMT	2 uA	Tube
Real Time Clock Real Time Clock 1339-31DVGI8 Renesas Electronics 1: 32,18 kr 2 500Expected 2028-01-17	Mfr. Part No. 1339-31DVGI8 Mouser Part No 972-1339-31DVGI8	Renesas Electronics	Real Time Clock Real Time Clock	Datasheet	2 500Expected 2028-01-17	Cut Tape 32,18 kr 23,96 kr 22,73 kr Reel 17,78 kr	Min.: 1 Mult.: 1 : 2 500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	Backup Switching	1.3 V	3.7 V	- 40 C	+ 85 C	1339	SMD/SMT	80 uA	Reel, Cut Tape
Real Time Clock 256K (32Kx8) 70ns M48T37Y-70MH1F STMicroelectronics 1: 198,45 kr 26In Stock	Mfr. Part No. M48T37Y-70MH1F Mouser Part No 511-M48T37Y-70MH1F	STMicroelectronics	Real Time Clock 256K (32Kx8) 70ns	Datasheet	26In Stock	Cut Tape 198,45 kr 170,55 kr 159,41 kr 141,19 kr View Reel 130,39 kr 137,70 kr 130,61 kr 130,39 kr Quote MouseReel Available	Min.: 1 Mult.: 1 : 936	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	SOIC-44	Backup Switching	4.5 V	5.5 V	0 C	+ 70 C	M48T37Y	SMD/SMT	3 mA	Reel, Cut Tape, MouseReel
Real Time Clock 32.768kHz, 20PPM, Real-Time Clock Module with SPI-Bus RV-8063-C8 32.768kHz-20PPM-TA-QC Micro Crystal 1: 18,34 kr 1 000Expected 2027-02-05	Mfr. Part No. RV-8063-C8 32.768kHz-20PPM-TA-QC Mouser Part No 428-204233-MC01	Micro Crystal	Real Time Clock 32.768kHz, 20PPM, Real-Time Clock Module with SPI-Bus Learn More about Micro Crystal rv 8063 c8 rtc modules	Datasheet	1 000Expected 2027-02-05	Cut Tape 18,34 kr 13,50 kr 12,04 kr 10,68 kr Reel 9,65 kr View 10,04 kr 9,93 kr 9,17 kr 8,98 kr MouseReel Available	Min.: 1 Mult.: 1 : 1 000	SPI	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SON-8		900 mV	5.5 V	- 40 C	+ 85 C	RV-8063-C8	SMD/SMT	190 nA	Reel, Cut Tape, MouseReel
Real Time Clock RTC I2c Serial IC 1.8 to 5.5V 32kHz 1337AGDCGI Renesas Electronics 1: 33,86 kr 291Expected 2028-04-19	Mfr. Part No. 1337AGDCGI Mouser Part No 972-1337AGDCGI	Renesas Electronics	Real Time Clock RTC I2c Serial IC 1.8 to 5.5V 32kHz	Datasheet	291Expected 2028-04-19	33,86 kr 25,20 kr 23,18 kr 20,59 kr 19,69 kr	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	SOIC-8	No Backup Switching	1.8 V	5.5 V	- 40 C	+ 85 C	1337AGD	SMD/SMT	725 nA	Tube
Real Time Clock 1338D-31 REAL TIME CLOCK 1338D-31DVGI Renesas Electronics 1: 28,01 kr 384Expected 2028-04-19	Mfr. Part No. 1338D-31DVGI Mouser Part No 972-1338D-31DVGI	Renesas Electronics	Real Time Clock 1338D-31 REAL TIME CLOCK	Datasheet	384Expected 2028-04-19	28,01 kr 21,04 kr 19,13 kr 17,10 kr 15,98 kr	Min.: 1 Mult.: 1										1338		2 uA	Tube
Real Time Clock Real Time Clock 1339-31DVGI Renesas Electronics 1: 32,63 kr 57On Order	Mfr. Part No. 1339-31DVGI Mouser Part No 972-1339-31DVGI	Renesas Electronics	Real Time Clock Real Time Clock	Datasheet	57On Order	32,63 kr 24,41 kr 23,85 kr 22,95 kr View 22,50 kr 22,28 kr 17,66 kr	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)	TSSOP-8	Backup Switching	1.3 V	3.7 V	- 40 C	+ 85 C	1339	SMD/SMT	80 uA	Tube
Real Time Clock Parallel RTC A 595-B Q4802LYPWR A 595-BQ A 595-BQ4802LYPWR BQ4802LYPW Texas Instruments 1: 111,04 kr 199Expected 2026-12-03 End of Life	Mfr. Part No. BQ4802LYPW Mouser Part No 595-BQ4802LYPW End of Life	Texas Instruments	Real Time Clock Parallel RTC A 595-B Q4802LYPWR A 595-BQ A 595-BQ4802LYPWR	Datasheet	199Expected 2026-12-03	111,04 kr 86,74 kr 80,55 kr 73,80 kr 64,80 kr	Min.: 1 Mult.: 1	Parallel	YY-MM-DD-dd	HH:MM:SS (24 hr)	TSSOP-28	Backup Switching	2.7 V	3.6 V	0 C	+ 70 C	BQ4802LY	SMD/SMT	3 mA	Tube
Real Time Clock 3.0Volt -40 to 85C I2C BUS RX-8035LC:B3 PURE SN Epson Timing 1: 96,75 kr 500Expected 2027-03-01	Mfr. Part No. RX-8035LC:B3 PURE SN Mouser Part No 732-RX-8035LC:B3	Epson Timing	Real Time Clock 3.0Volt -40 to 85C I2C BUS	Datasheet	500Expected 2027-03-01	Cut Tape 96,75 kr 75,26 kr 69,98 kr 64,01 kr Reel 60,86 kr View 59,06 kr 57,83 kr Quote MouseReel Available	Min.: 1 Mult.: 1 : 250	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	VSOJ-12	Backup Switching	2.4 V	5.5 V	- 40 C	+ 85 C	RX-8035LC	SMD/SMT	400 nA	Reel, Cut Tape, MouseReel
Real Time Clock RX4111CE:B6 REAL TIME CLOCK SPI-BUS 3.0V 23PPM 2K TR RX4111CE B6 Epson Timing 1: 18,68 kr 6 745On Order	Mfr. Part No. RX4111CE B6 Mouser Part No 732-RX4111CEB6	Epson Timing	Real Time Clock RX4111CE:B6 REAL TIME CLOCK SPI-BUS 3.0V 23PPM 2K TR Learn More about Epson Timing epson rx4111ce rx8111ce rtc modules	Datasheet	6 745On Order On Order Ship Dates Mfr. No: RX4111CE B6 Stock: 0 On Order: 2 745 Expected 2026-11-16 4 000 Expected 2027-03-16 Factory Lead Time: 16 Weeks	Cut Tape 18,68 kr 13,73 kr 12,49 kr 11,13 kr Reel 9,41 kr View 10,45 kr 10,06 kr 9,97 kr 9,19 kr MouseReel Available	Min.: 1 Mult.: 1 : 2 000	Serial 4-Wire, SPI				Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C	RTC	SMD/SMT	2 uA	Reel, Cut Tape, MouseReel
Real Time Clock RX4901CE XB C0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-5ppm 2k TR RX4901CE XB C06 Epson Timing 1: 44,78 kr 1 023Expected 2026-12-28	Mfr. Part No. RX4901CE XB C06 Mouser Part No 732-RX4901CEXBC06	Epson Timing	Real Time Clock RX4901CE XB C0 REAL TIME CLOCK MODULE SPI-Bus 3.0V +/-5ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	1 023Expected 2026-12-28	Cut Tape 44,78 kr 33,86 kr 31,16 kr 28,13 kr View Reel 23,96 kr 26,66 kr 26,33 kr 24,98 kr 23,96 kr 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	1 uA	Reel, Cut Tape, MouseReel
Real Time Clock RX8901CE XS A0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-3ppm 2k TR RX8901CE XS A06 Epson Timing 1: 58,39 kr 2 000Expected 2026-12-07	Mfr. Part No. RX8901CE XS A06 Mouser Part No 732-RX8901CEXSA06	Epson Timing	Real Time Clock RX8901CE XS A0 REAL TIME CLOCK MODULE I2C-Bus 3.0V +/-3ppm 2k TR Learn More about Epson Timing epson rx8901ce rx4901ce real time clock modules	Datasheet	2 000Expected 2026-12-07	Cut Tape 58,39 kr 44,66 kr 41,29 kr 37,58 kr View Reel 33,08 kr 35,78 kr 35,44 kr 33,08 kr 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	1 uA	Reel, Cut Tape, MouseReel
Real Time Clock Real Time Clock TSSOP-8 T&R 2.5K PT7C4563CLEX Diodes Incorporated 2 500: 4,51 kr 17 500Factory Stock Available New Product	Mfr. Part No. PT7C4563CLEX Mouser Part No 621-PT7C4563CLEX New Product	Diodes Incorporated	Real Time Clock Real Time Clock TSSOP-8 T&R 2.5K	Datasheet	17 500Factory Stock Available More Info Available	Reel 4,51 kr	Min.: 2 500 Mult.: 2 500 : 2 500	I2C	BCD	BCD	TSSOP-8		1.3 V	5.5 V	- 40 C	+ 85 C	PT7C4563C	SMD/SMT		Reel
Real Time Clock RX4111CE:B3 REAL TIME CLOCK SPI-BUS 3.0V 23PPM 250TR RX4111CE B3 Epson Timing 1: 37,69 kr 250Expected 2027-02-03	Mfr. Part No. RX4111CE B3 Mouser Part No 732-RX4111CEB3	Epson Timing	Real Time Clock RX4111CE:B3 REAL TIME CLOCK SPI-BUS 3.0V 23PPM 250TR Learn More about Epson Timing epson rx4111ce rx8111ce rtc modules	Datasheet	250Expected 2027-02-03	Cut Tape 37,69 kr 28,46 kr 26,10 kr 23,63 kr Reel 21,94 kr View 21,71 kr 20,70 kr 20,36 kr 20,25 kr 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	2 uA	Reel, Cut Tape, MouseReel