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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 Real Time Clock SEAM3225 T&R 3K Diodes Incorporated RT313242N3 RT313242N3 Diodes Incorporated 3,000: $1.58 Non-Stocked Lead-Time 32 Weeks New Product	Mfr. Part No. RT313242N3 Mouser Part No 621-RT313242N3 New Product	Diodes Incorporated	Real Time Clock Real Time Clock SEAM3225 T&R 3K	Datasheet	Non-Stocked Lead-Time 32 Weeks	Reel $1.58	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: $1.71 Non-Stocked Lead-Time 32 Weeks New Product	Mfr. Part No. RT313242Q3 Mouser Part No 621-RT313242Q3 New Product	Diodes Incorporated	Real Time Clock Real Time Clock SEAM3225 T&R 3K	Datasheet	Non-Stocked Lead-Time 32 Weeks	Reel $1.71	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: $1.37 Non-Stocked Lead-Time 32 Weeks New Product	Mfr. Part No. RT313243N3 Mouser Part No 621-RT313243N3 New Product	Diodes Incorporated	Real Time Clock Real Time Clock SEAM3225 T&R 3K	Datasheet	Non-Stocked Lead-Time 32 Weeks	Reel $1.37	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: $3.89 Non-Stocked Lead-Time 32 Weeks New Product	Mfr. Part No. RT313243Q1 Mouser Part No 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 $3.89 $2.93 $2.69 $2.43 $2.33 Reel $1.97	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: $1.84 Non-Stocked Lead-Time 32 Weeks New Product	Mfr. Part No. RT313243Q2 Mouser Part No 621-RT313243Q2 New Product	Diodes Incorporated	Real Time Clock Real Time Clock SEAM3225 T&R 3K	Datasheet	Non-Stocked Lead-Time 32 Weeks	Reel $1.84	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: $0.698 Non-Stocked Lead-Time 28 Weeks	Mfr. Part No. PT7C4311ZEEX Mouser Part No 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 $0.698	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: $6.76 Non-Stocked Lead-Time 48 Weeks	Mfr. Part No. PT7C4337ACSE Mouser Part No 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	$6.76 $5.18 $4.60	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: $0.555 Non-Stocked Lead-Time 48 Weeks	Mfr. Part No. PT7C4337UEX-2017 Mouser Part No 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 $0.555	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: $2.47 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. PCF8553DTT/AY Mouser Part No 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 $2.47 $1.82 $1.66 $1.48 Reel $1.27 View $1.40 $1.36 $1.31 $1.24	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: $1.65 Non-Stocked Lead-Time 33 Weeks	Mfr. Part No. 1338B-18DVGI8 Mouser Part No 972-1338B-18DVGI8	Renesas Electronics	Real Time Clock 1338B-18 REAL TIME CLOCK	Datasheet	Non-Stocked Lead-Time 33 Weeks	Reel $1.65	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: $1.56 Non-Stocked Lead-Time 33 Weeks	Mfr. Part No. 1338D-31DVGI8 Mouser Part No 972-1338D-31DVGI8	Renesas Electronics	Real Time Clock 1338D-31 REAL TIME CLOCK	Datasheet	Non-Stocked Lead-Time 33 Weeks	Reel $1.56	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: $1.54 Non-Stocked Lead-Time 33 Weeks	Mfr. Part No. 1339D-31DVGI8 Mouser Part No 972-1339D-31DVGI8	Renesas Electronics	Real Time Clock 1339D-31 REAL TIME CLOCK	Datasheet	Non-Stocked Lead-Time 33 Weeks	Reel $1.54	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: $1.78 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. RX-4571LC:B0 PURE SN Mouser Part No 732-R4571LC:B0PURESN	Epson Timing	Real Time Clock Real Time Clock	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel $1.78 $1.76	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: $1.64 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. RX-4571SA:B0 PURE SN Mouser Part No 732-R4571SA:B0PURESN	Epson Timing	Real Time Clock Real Time Clock	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel $1.64 $1.62	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: $2.14 Non-Stocked	Mfr. Part No. RX-8803SA:UB0 PURE SN Mouser Part No 732-R8803SAUB0PURESN	Epson Timing	Real Time Clock Real Time Clock	Datasheet	Non-Stocked	Reel $2.14 $2.10	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: $2.89 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. RA4000CE:YBD00 Mouser Part No 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 $2.89	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: $3.19 Non-Stocked Lead-Time 20 Weeks	Mfr. Part No. RA8804CE:XA0 Mouser Part No 732-RA8804CEXA0	Epson Timing	Real Time Clock REAL TIME CLOCK +/-3.4PPM DTCXO 1K TR	Datasheet	Non-Stocked Lead-Time 20 Weeks	Reel $3.19	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: $3.23 Non-Stocked Lead-Time 30 Weeks	Mfr. Part No. RA8900CE:UA0 Mouser Part No 732-RA8900CEUA0	Epson Timing	Real Time Clock I2C-BUS RTC +/-3.4PPM -40-85C 1K TR	Datasheet	Non-Stocked Lead-Time 30 Weeks	Reel $3.23	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: $10.56 Non-Stocked Lead-Time 16 Weeks New At Mouser	Mfr. Part No. RTC-8564NB:B3 ROHS Mouser Part No 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 $10.56 $8.22 $7.63 $6.99 Reel $6.69 View $6.46 $6.34 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: $1.83 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. RX-4571SAB0 PURE SN Mouser Part No 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 $1.83 $1.80 $1.78	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: $3.41 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. RX-4803SAUA0 PURE SN Mouser Part No 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 $3.41	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
Real Time Clock 32.768KHz 2.5V-5.5V 8 Bit x 256 RX-5412SF:B3 Epson Timing 250: $5.63 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. RX-5412SF:B3 Mouser Part No 732-RX-5412SF:B3	Epson Timing	Real Time Clock 32.768KHz 2.5V-5.5V 8 Bit x 256	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel $5.63 $5.62 Quote Quote	Min.: 250 Mult.: 250 : 250	Serial 4-Wire					2.5 V	5.5 V	- 40 C	+ 85 C	RX-5412SF	SMD/SMT	Reel
Real Time Clock 3.0Volt -40 to 85C I2C BUS RX-8035LC:AA0 Epson Timing 1,000: $2.56 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. RX-8035LC:AA0 Mouser Part No 732-RX-8035LC:AA0	Epson Timing	Real Time Clock 3.0Volt -40 to 85C I2C BUS	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel $2.56	Min.: 1,000 Mult.: 1,000 : 1,000	I2C			VSOJ-12		2.4 V	5.5 V	- 40 C	+ 85 C	RX-8035LC	SMD/SMT	Reel
Real Time Clock 3.0Volt -40 to 85C I2C BUS RX-8035LC:AA3 Epson Timing 1: $4.89 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. RX-8035LC:AA3 Mouser Part No 732-RX-8035LC:AA3	Epson Timing	Real Time Clock 3.0Volt -40 to 85C I2C BUS	Datasheet	Non-Stocked Lead-Time 17 Weeks	Cut Tape $4.89 $3.69 $3.39 $3.26 Reel $2.76 View $2.70 $2.64 MouseReel Available	Min.: 1 Mult.: 1 : 250	I2C			VSOJ-12		2.4 V	5.5 V	- 40 C	+ 85 C	RX-8035LC	SMD/SMT	Reel, Cut Tape, MouseReel
Real Time Clock 3.0Volt -40 to 85C I2C BUS RX-8035LC:B0 Epson Timing 1,000: $2.49 Non-Stocked Lead-Time 17 Weeks	Mfr. Part No. RX-8035LC:B0 Mouser Part No 732-RX-8035LC:B0	Epson Timing	Real Time Clock 3.0Volt -40 to 85C I2C BUS	Datasheet	Non-Stocked Lead-Time 17 Weeks	Reel $2.49	Min.: 1,000 Mult.: 1,000 : 1,000	I2C			VSOJ-12		2.4 V	5.5 V	- 40 C	+ 85 C	RX-8035LC	SMD/SMT	Reel