Real Time Clocks

Browse available Real Time Clocks components by manufacturer and part number. Review stock status, datasheets and key technical parameters to compare suitable options for design, maintenance, replacement or purchasing.

If you already have a target MPN or BOM, send it to EGOO with the required quantity. Our sourcing team can check availability, lead time and quotation options, including hard-to-find and obsolete parts.

Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Package/Case	Packaging	Product Status	Programmable	Type	Features	Memory Size	Time Format	Date Format	Interface	Voltage - Supply	Voltage - Supply, Battery	Current - Timekeeping (Max)	Operating Temperature	Mounting Type	Grade	Qualification	Supplier Device Package
M48T08-100PC1 IC RTC CLK/CALENDAR PAR 28DIP STMicroelectronics	1,999	-	RFQ	Datasheet	Timekeeper®	28-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.75V ~ 5.5V	-	3mA @ 4.7V ~ 5.5V	0°C ~ 70°C	Through Hole	-	-	28-PCDIP, CAPHAT®
M48T35Y-70PC1 IC RTC CLK/CALENDAR PAR 28DIP STMicroelectronics	2,073	-	RFQ	Datasheet	Timekeeper®	28-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	2mA @ 4.75V ~ 5.5V	0°C ~ 70°C	Through Hole	-	-	28-PCDIP, CAPHAT®
DP8570AV/NOPB IC RTC TIMER PERIPH PAR 28PLCC Texas Instruments	3,369	-	RFQ	Datasheet	-	28-LCC (J-Lead)	Tube	Active	Not Verified	Timer Clock Peripheral (TCP)	Alarm, Leap Year	44B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.2V ~ 5.1V	1µA @ 5V	-40°C ~ 85°C	Surface Mount	-	-	28-PLCC (11.51x11.51)
DS1248Y-70IND+ IC RTC PHANTOM CHIP PAR 32EDIP Analog Devices Inc./Maxim Integrated	1,626	-	RFQ	Datasheet	-	32-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Phantom Time Chip	NVSRAM	128KB	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	10mA @ 5V	-40°C ~ 85°C	Through Hole	-	-	32-EDIP
R2061L01-E2 IC RTC CLK/CALENDAR SER 16QFN Nisshinbo Micro Devices Inc.	1,025	-	RFQ	Datasheet	-	16-XFQFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2.34V ~ 5.5V	-	1µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	QFN023023-16
R2223T-E2-F IC RTC CLK/CALENDAR I2C 10TSSOP Nisshinbo Micro Devices Inc.	3,247	-	RFQ	Datasheet	-	10-VFSOP, 10-MSOP (0.110", 2.80mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, RAM	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.5V ~ 5.5V	-	0.9µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	10-TSSOPG
DS1685EN-5+ IC RTC CLK/CALENDAR PAR 24TSSOP Analog Devices Inc./Maxim Integrated	4,160	-	RFQ	Datasheet	-	24-TSSOP (0.173", 4.40mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, NVSRAM, Square Wave Output, Y2K	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 5V	-40°C ~ 85°C	Surface Mount	-	-	24-TSSOP
DS1672U-3+ IC RTC BINARY COUNTER I2C 8UMAX Analog Devices Inc./Maxim Integrated	3,044	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Active	Not Verified	Binary Counter	Trickle-Charger	-	Binary	Binary	I2C, 2-Wire Serial	2.7V ~ 3.3V	1.3V ~ 3.63V	500µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-uMAX/uSOP
M48T18-150PC1 IC RTC CLK/CALENDAR PAR 28DIP STMicroelectronics	2,059	-	RFQ	Datasheet	Timekeeper®	28-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Through Hole	-	-	28-PCDIP, CAPHAT®
DS1315N-5+ IC RTC PHANTOM CHIP PAR 16DIP Analog Devices Inc./Maxim Integrated	4,818	-	RFQ	Datasheet	-	16-DIP (0.300", 7.62mm)	Tube	Active	Not Verified	Phantom Time Chip	Leap Year	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	1.3mA @ 5V	-40°C ~ 85°C	Through Hole	-	-	16-PDIP
MAX31342EWA+T IC RTC CLK/CALENDAR I2C 8WLP Analog Devices Inc./Maxim Integrated	4,911	-	RFQ	Datasheet	-	8-WFBGA, WLBGA	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C	1.6V ~ 3.6V	-	0.33µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	8-WLP (.97x1.97)
MAX31331TETB+ ULTRA-LOW POWER 12C REAL TIME CL Analog Devices Inc./Maxim Integrated	1,103	-	RFQ	Datasheet	-	10-WFDFN Exposed Pad	Tray	Active	-	Clock/Calendar	Alarm, Leap Year, RAM, Square Wave Output, Trickle Charger	32B	HH:MM:SS (12/24 hr)	YY-MM-DD	I2C	1.1V ~ 5.5V	1.1V ~ 5.5V	0.65µA ~ 0.7µA @ 1.1V ~ 5.5V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-TDFN (3x3)
MAX31329NELB+ INTEGRATED RC17 W/ NDK CRYSTAL Analog Devices Inc./Maxim Integrated	1,784	-	RFQ	Datasheet	-	10-LLGA	Tray	Active	-	Clock/Calendar	Alarm, Leap Year, RAM, Square Wave Output, Trickle Charger	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C	1.6V ~ 5.5V	1.6V ~ 5.5V	0.5µA ~ 0.7µA @ 1.6V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	10-LGA (5x5)
MAX31328NELB+T INTEGRATED DS3231SN W/ NDK CRYST Analog Devices Inc./Maxim Integrated	4,608	-	RFQ	Datasheet	-	10-LLGA	Tape & Reel (TR)	Active	-	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C	2.3V ~ 5.5V	2.3V ~ 5.5V	3µA ~ 3.5µA @ 3V ~ 5.5V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-LGA (5x5)
DS1685Q-5+ IC RTC CLK/CALENDAR PAR 28PLCC Analog Devices Inc./Maxim Integrated	4,691	-	RFQ	Datasheet	-	28-LCC (J-Lead)	Tube	Active	Not Verified	Clock/Calendar	Alarm, NVSRAM, Square Wave Output, Y2K	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 5V	0°C ~ 70°C	Surface Mount	-	-	28-PLCC (11.51x11.51)
M48T08-150PC1 IC RTC CLK/CALENDAR PAR 28DIP STMicroelectronics	4,629	-	RFQ	Datasheet	Timekeeper®	28-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.75V ~ 5.5V	-	3mA @ 4.7V ~ 5.5V	0°C ~ 70°C	Through Hole	-	-	28-PCDIP, CAPHAT®
PCF8564AU/5GB/1,01 IC RTC CLOCK/CALENDAR I2C DIE NXP USA Inc.	4,074	-	RFQ	Datasheet	-	Die	Bulk	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1V ~ 5.5V	-	0.6µA ~ 0.75µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	Die
PCF8564AU/5BB/1,01 IC RTC CLOCK/CALENDAR I2C DIE NXP USA Inc.	1,485	-	RFQ	Datasheet	-	Die	Bulk	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1V ~ 5.5V	-	0.6µA ~ 0.75µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	Die
PT7C4563BUEX IC RTC I2C SER 8MSOP T&R 2.5K Diodes Incorporated	2,201	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 5.5V	-	0.65µA ~ 0.85µA @ 3V ~ 5V	-40°C ~ 85°C (TA)	Surface Mount	-	-	8-MSOP
PCF2123U/12HA/1,00 IC RTC CLOCK/CALENDAR SPI DIE NXP USA Inc.	1,550	-	RFQ	Datasheet	-	Die	Bulk	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	0.33µA ~ 0.38µA @ 2V ~ 5V	-40°C ~ 85°C	-	-	-	Die

Real Time Clocks FAQ

What Real Time Clocks components can I source from EGOO?

You can browse available Real Time Clocks product families, manufacturers and part numbers on this page, then review stock, datasheets and technical information for suitable options.

Can EGOO help with hard-to-source or obsolete Real Time Clocks parts?

Yes. EGOO provides sourcing support for shortage, obsolete and hard-to-find electronic components. Send us the target manufacturer part number and quantity for checking.

Does EGOO support BOM and small-batch sourcing?

Yes. We support BOM sourcing, prototype requirements and small-batch supply, together with stock, lead-time and quotation assistance.

How do I request pricing and availability?

Submit the manufacturer part number, required quantity and any package, date-code or delivery requirements through the RFQ form, and our team will review available sourcing options.