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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 (JPY) 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 Micro Crystal RV-3129-C3-32.768k-OPTION-A-TB-QA RV-3129-C3-32.768k-OPTION-A-TB-QA Micro Crystal 1,000: ¥431.9 Non-Stocked	Mfr. Part # RV-3129-C3-32.768k-OPTION-A-TB-QA Mouser Part # 428-203618-MG1	Micro Crystal	Real Time Clock	Datasheet	Non-Stocked	¥431.9	Min.: 1,000 Mult.: 1,000
Real Time Clock Micro Crystal RV-3129-C3-32.768k-OPTION-B-TB-QA RV-3129-C3-32.768k-OPTION-B-TB-QA Micro Crystal 1,000: ¥360.4 Non-Stocked	Mfr. Part # RV-3129-C3-32.768k-OPTION-B-TB-QA Mouser Part # 428-203639-MG1	Micro Crystal	Real Time Clock	Datasheet	Non-Stocked	¥360.4	Min.: 1,000 Mult.: 1,000
Real Time Clock Micro Crystal RV-3149-C3-32.768k-OPTION-A-TB-QA RV-3149-C3-32.768k-OPTION-A-TB-QA Micro Crystal 1,000: ¥431.9 Non-Stocked	Mfr. Part # RV-3149-C3-32.768k-OPTION-A-TB-QA Mouser Part # 428-203641-MG1	Micro Crystal	Real Time Clock	Datasheet	Non-Stocked	¥431.9	Min.: 1,000 Mult.: 1,000
Real Time Clock Micro Crystal RV-3149-C3-32.768k-OPTION-B-TB-QA RV-3149-C3-32.768k-OPTION-B-TB-QA Micro Crystal 1,000: ¥360.4 Non-Stocked	Mfr. Part # RV-3149-C3-32.768k-OPTION-B-TB-QA Mouser Part # 428-203684-MG1	Micro Crystal	Real Time Clock	Datasheet	Non-Stocked	¥360.4	Min.: 1,000 Mult.: 1,000
Real Time Clock Real Time Clock SEAM3225 T&R 3K Diodes Incorporated RT313242N3 RT313242N3 Diodes Incorporated 3,000: ¥262.4 Non-Stocked Lead-Time 32 Weeks New Product	Mfr. Part # RT313242N3 Mouser Part # 621-RT313242N3 New Product	Diodes Incorporated	Real Time Clock Real Time Clock SEAM3225 T&R 3K	Datasheet	Non-Stocked Lead-Time 32 Weeks	Reel ¥262.4	Min.: 3,000 Mult.: 3,000 : 3,000	I2C	YYYY-MM-DD	HH:MM:SS (24 hr)	SMD-10		1.3 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel
Real Time Clock Real Time Clock SEAM3225 T&R 3K Diodes Incorporated RT313242Q3 RT313242Q3 Diodes Incorporated 3,000: ¥284 Non-Stocked Lead-Time 32 Weeks New Product	Mfr. Part # RT313242Q3 Mouser Part # 621-RT313242Q3 New Product	Diodes Incorporated	Real Time Clock Real Time Clock SEAM3225 T&R 3K	Datasheet	Non-Stocked Lead-Time 32 Weeks	Reel ¥284	Min.: 3,000 Mult.: 3,000 : 3,000	I2C	YYYY-MM-DD	HH:MM:SS (24 hr)	SMD-10		1.3 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel
Real Time Clock Real Time Clock SEAM3225 T&R 3K Diodes Incorporated RT313243N3 RT313243N3 Diodes Incorporated 3,000: ¥227.6 Non-Stocked Lead-Time 32 Weeks New Product	Mfr. Part # RT313243N3 Mouser Part # 621-RT313243N3 New Product	Diodes Incorporated	Real Time Clock Real Time Clock SEAM3225 T&R 3K	Datasheet	Non-Stocked Lead-Time 32 Weeks	Reel ¥227.6	Min.: 3,000 Mult.: 3,000 : 3,000	I2C	YYYY-MM-DD	HH:MM:SS (24 hr)	SMD-10		1.3 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel
Real Time Clock Real Time Clock SEAM3225 T&R 3K Diodes Incorporated RT313243Q1 RT313243Q1 Diodes Incorporated 1: ¥646.1 Non-Stocked Lead-Time 32 Weeks New Product	Mfr. Part # RT313243Q1 Mouser Part # 621-RT313243Q1 New Product	Diodes Incorporated	Real Time Clock Real Time Clock SEAM3225 T&R 3K	Datasheet	Non-Stocked Lead-Time 32 Weeks	Cut Tape ¥646.1 ¥486.7 ¥446.8 ¥403.6 ¥387 Reel ¥327.2	Min.: 1 Mult.: 1 : 3,000	I2C	YYYY-MM-DD	HH:MM:SS (24 hr)	SMD-10		1.3 V	5.5 V	- 40 C	+ 125 C		SMD/SMT	Reel, Cut Tape
Real Time Clock Real Time Clock SEAM3225 T&R 3K Diodes Incorporated RT313243Q2 RT313243Q2 Diodes Incorporated 3,000: ¥305.6 Non-Stocked Lead-Time 32 Weeks New Product	Mfr. Part # RT313243Q2 Mouser Part # 621-RT313243Q2 New Product	Diodes Incorporated	Real Time Clock Real Time Clock SEAM3225 T&R 3K	Datasheet	Non-Stocked Lead-Time 32 Weeks	Reel ¥305.6	Min.: 3,000 Mult.: 3,000 : 3,000	I2C	YYYY-MM-DD	HH:MM:SS (24 hr)	SMD-10		1.3 V	5.5 V	- 40 C	+ 105 C		SMD/SMT	Reel
Real Time Clock I2C Bus RTC w/56byte NVRAM RTC Diodes Incorporated PT7C4311ZEEX PT7C4311ZEEX Diodes Incorporated 3,000: ¥115.9 Non-Stocked Lead-Time 28 Weeks	Mfr. Part # PT7C4311ZEEX Mouser Part # 729-PT7C4311ZEEX	Diodes Incorporated	Real Time Clock I2C Bus RTC w/56byte NVRAM RTC Learn More about Diodes Incorporated diodes timing solutions	Datasheet	Non-Stocked Lead-Time 28 Weeks	Reel ¥115.9	Min.: 3,000 Mult.: 3,000 : 3,000	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)		Backup Switching	1.2 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel
Real Time Clock 32.768k crystal RTC Module Integrated Diodes Incorporated PT7C4337ACSE PT7C4337ACSE Diodes Incorporated 1: ¥1,122.8 Non-Stocked Lead-Time 48 Weeks	Mfr. Part # PT7C4337ACSE Mouser Part # 729-PT7C4337ACSE	Diodes Incorporated	Real Time Clock 32.768k crystal RTC Module Integrated Learn More about Diodes Incorporated diodes timing solutions	Datasheet	Non-Stocked Lead-Time 48 Weeks	¥1,122.8 ¥860.4 ¥764.1	Min.: 1 Mult.: 1	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		No Backup Switching	1.2 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Tube
Real Time Clock Real Time Clock MSOP-8 T&R 2.5K Diodes Incorporated PT7C4337UEX-2017 PT7C4337UEX-2017 Diodes Incorporated 2,500: ¥91.2 Non-Stocked Lead-Time 48 Weeks	Mfr. Part # PT7C4337UEX-2017 Mouser Part # 729-PT7C4337UEX-2017	Diodes Incorporated	Real Time Clock Real Time Clock MSOP-8 T&R 2.5K	Datasheet	Non-Stocked Lead-Time 48 Weeks	Reel ¥91.2	Min.: 2,500 Mult.: 2,500 : 2,500	Serial 2-Wire, I2C	YY-MM-DD-dd	HH:MM:SS:hh (12 hr, 24 hr)		No Backup Switching	1.2 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel
Real Time Clock 4 x 40 I C-bus LCD Segment Driver in TSSOP56 Package NXP Semiconductors PCF8553DTT/AY PCF8553DTT/AY NXP Semiconductors 1: ¥410.3 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # PCF8553DTT/AY Mouser Part # 771-PCF8553DTT/AY	NXP Semiconductors	Real Time Clock 4 x 40 I C-bus LCD Segment Driver in TSSOP56 Package Learn More about NXP Semiconductors nxplogic	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape ¥410.3 ¥302.3 ¥275.7 ¥245.8 Reel ¥210.9 View ¥232.5 ¥225.9 ¥217.6 ¥206	Min.: 1 Mult.: 1 : 2,000										PCF8553DTT		Reel, Cut Tape
Real Time Clock 1338B-18 REAL TIME CLOCK Renesas Electronics 1338B-18DVGI8 1338B-18DVGI8 Renesas Electronics 2,500: ¥274.1 Non-Stocked Lead-Time 33 Weeks	Mfr. Part # 1338B-18DVGI8 Mouser Part # 972-1338B-18DVGI8	Renesas Electronics	Real Time Clock 1338B-18 REAL TIME CLOCK	Datasheet	Non-Stocked Lead-Time 33 Weeks	Reel ¥274.1	Min.: 2,500 Mult.: 2,500 : 2,500										1338		Reel
Real Time Clock 1338D-31 REAL TIME CLOCK Renesas Electronics 1338D-31DVGI8 1338D-31DVGI8 Renesas Electronics 2,500: ¥259.1 Non-Stocked Lead-Time 33 Weeks	Mfr. Part # 1338D-31DVGI8 Mouser Part # 972-1338D-31DVGI8	Renesas Electronics	Real Time Clock 1338D-31 REAL TIME CLOCK	Datasheet	Non-Stocked Lead-Time 33 Weeks	Reel ¥259.1	Min.: 2,500 Mult.: 2,500 : 2,500										1338		Reel
Real Time Clock 1339D-31 REAL TIME CLOCK Renesas Electronics 1339D-31DVGI8 1339D-31DVGI8 Renesas Electronics 2,500: ¥255.8 Non-Stocked Lead-Time 33 Weeks	Mfr. Part # 1339D-31DVGI8 Mouser Part # 972-1339D-31DVGI8	Renesas Electronics	Real Time Clock 1339D-31 REAL TIME CLOCK	Datasheet	Non-Stocked Lead-Time 33 Weeks	Reel ¥255.8	Min.: 2,500 Mult.: 2,500 : 2,500										1339		Reel
Real Time Clock Real Time Clock RX-4571LC:B0 PURE SN Epson Timing 1,000: ¥295.7 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # RX-4571LC:B0 PURE SN Mouser Part # 732-R4571LC:B0PURESN	Epson Timing	Real Time Clock Real Time Clock	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel ¥295.7 ¥292.3	Min.: 1,000 Mult.: 1,000 : 1,000	I2C				No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel
Real Time Clock Real Time Clock RX-4571SA:B0 PURE SN Epson Timing 1,000: ¥272.4 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # RX-4571SA:B0 PURE SN Mouser Part # 732-R4571SA:B0PURESN	Epson Timing	Real Time Clock Real Time Clock	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel ¥272.4 ¥269.1	Min.: 1,000 Mult.: 1,000 : 1,000	Serial 3-Wire				No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel
Real Time Clock Real Time Clock RX-8803SA:UB0 PURE SN Epson Timing 1,000: ¥355.5 Non-Stocked	Mfr. Part # RX-8803SA:UB0 PURE SN Mouser Part # 732-R8803SAUB0PURESN	Epson Timing	Real Time Clock Real Time Clock	Datasheet	Non-Stocked	Reel ¥355.5 ¥348.8	Min.: 1,000 Mult.: 1,000 : 1,000	I2C				No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel
Real Time Clock RTC 4 WIRE SPI-BUS +/-5.0PPM -40-85C NO RST PIN 1K TR RA4000CE:YBD00 Epson Timing 1,000: ¥480 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # RA4000CE:YBD00 Mouser Part # 732-RA4000CEYBD00	Epson Timing	Real Time Clock RTC 4 WIRE SPI-BUS +/-5.0PPM -40-85C NO RST PIN 1K TR	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel ¥480	Min.: 1,000 Mult.: 1,000 : 1,000	Serial 4-Wire, SPI	YY-MM-DD	HH:MM:SS (24 hr)	3.2 mm x 2.5 mm x 1 mm	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel
Real Time Clock REAL TIME CLOCK +/-3.4PPM DTCXO 1K TR RA8804CE:XA0 Epson Timing 1,000: ¥529.9 Non-Stocked Lead-Time 20 Weeks	Mfr. Part # RA8804CE:XA0 Mouser Part # 732-RA8804CEXA0	Epson Timing	Real Time Clock REAL TIME CLOCK +/-3.4PPM DTCXO 1K TR	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel ¥529.9	Min.: 1,000 Mult.: 1,000 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	3.2 mm x 2.5 mm x 1 mm	No Backup Switching	1.6 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel
Real Time Clock I2C-BUS RTC +/-3.4PPM -40-85C 1K TR RA8900CE:UA0 Epson Timing 1,000: ¥536.5 Non-Stocked Lead-Time 30 Weeks	Mfr. Part # RA8900CE:UA0 Mouser Part # 732-RA8900CEUA0	Epson Timing	Real Time Clock I2C-BUS RTC +/-3.4PPM -40-85C 1K TR	Datasheet	Non-Stocked Lead-Time 30 Weeks	Reel ¥536.5	Min.: 1,000 Mult.: 1,000 : 1,000	I2C	YY-MM-DD-dd	HH:MM:SS (24 hr)	3.2 mm x 2.5 mm x 1 mm	Backup Switching	2.5 V	5.5 V	- 40 C	+ 85 C		SMD/SMT	Reel
Real Time Clock RTC I2C-BUS 5+23PPM SON-22 PIN 250TR RTC-8564NB:B3 ROHS Epson Timing 1: ¥1,754 Non-Stocked Lead-Time 16 Weeks New At Mouser	Mfr. Part # RTC-8564NB:B3 ROHS Mouser Part # 732-RTC8564NBB3ROHS New At Mouser	Epson Timing	Real Time Clock RTC I2C-BUS 5+23PPM SON-22 PIN 250TR	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape ¥1,754 ¥1,365.3 ¥1,267.3 ¥1,161 Reel ¥1,111.2 View ¥1,073 ¥1,053.1 Quote MouseReel Available	Min.: 1 Mult.: 1 : 250										MG7050HAN		Reel, Cut Tape, MouseReel
Real Time Clock RX-4571SA:B0 PURE SN RTC SON 14PIN 5+/-23PPM 1K TR RX-4571SAB0 PURE SN Epson Timing 1,000: ¥304 Non-Stocked Lead-Time 16 Weeks	Mfr. Part # RX-4571SAB0 PURE SN Mouser Part # 732-RX-4571SABPURESN	Epson Timing	Real Time Clock RX-4571SA:B0 PURE SN RTC SON 14PIN 5+/-23PPM 1K TR	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel ¥304 ¥299 ¥295.7	Min.: 1,000 Mult.: 1,000 : 1,000	I2C	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
Real Time Clock RX-4803SA:UA0 PURE SN RTC +/-3.4PPM-40 85C 1K T/R RX-4803SAUA0 PURE SN Epson Timing 1,000: ¥566.4 Non-Stocked Lead-Time 17 Weeks	Mfr. Part # RX-4803SAUA0 PURE SN Mouser Part # 732-RX-483SAUAPURESN	Epson Timing	Real Time Clock RX-4803SA:UA0 PURE SN RTC +/-3.4PPM-40 85C 1K T/R	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel ¥566.4	Min.: 1,000 Mult.: 1,000 : 1,000	SPI	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-4803SA	SMD/SMT	Reel