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
HC8825K compatible with 8025T Built-in c Suzhou Hangjing Elec&Tech Co.,Ltd	79,123	-	RFQ	Datasheet	*	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.7V ~ 5.5V	-	1.2µA ~ 1.8µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
STK17TA8-RF35 REAL TIME CLOCK, CMOS, PDSO48 Simtek	280	-	RFQ	Datasheet	*	-	Bulk	Active	Not Verified	-	-	-	-	-	-	-	-	-	-	-	-	-	-
DP8573AVX/NOPB IC RTC CLK/CALENDAR PAR 28PLCC National Semiconductor	450	-	RFQ	Datasheet	-	28-LCC (J-Lead)	Bulk	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	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)
ICM7170AIDG ICM7170 - REAL TIME CLOCK, CMOS Rochester Electronics, LLC	278	-	RFQ	Datasheet	-	-	Bulk	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	-	1.9V, 2.6V ~ 5.5V	2.8V ~ 3.5V	20µA @ 5V	-40°C ~ 85°C (TA)	-	-	-	-
MCP79400-I/MS IC RTC CLK/CALENDAR I2C 8MSOP Microchip Technology	628	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2µA (Typ) @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-MSOP
S-35390A-J8T1G IC RTC CLOCK/CALENDAR I2C 8SOP ABLIC Inc.	1,296	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.3V ~ 5.5V	-	0.93µA ~ 1.1µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOP-J
DP8573AV/NOPB IC RTC CLK/CALENDAR PAR 28PLCC Texas Instruments	4,678	-	RFQ	Datasheet	-	28-LCC (J-Lead)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	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)
DS1687-3IND+ IC RTC CLK/CALENDAR PAR 24EDIP Analog Devices Inc./Maxim Integrated	1,139	-	RFQ	Datasheet	-	24-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Alarm, NVSRAM, Square Wave Output, Y2K	242B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.7V	2.5V ~ 3.7V	2mA @ 3V	-40°C ~ 85°C	Through Hole	-	-	24-EDIP
DS1511Y+ IC RTC CLK/CALENDAR PAR 28EDIP Analog Devices Inc./Maxim Integrated	2,172	-	RFQ	Datasheet	-	28-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K	256B	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	5mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Through Hole	-	-	28-EDIP
DS1744-70IND+ IC RTC CLK/CALENDAR PAR 28EDIP Analog Devices Inc./Maxim Integrated	4,431	-	RFQ	Datasheet	-	28-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Y2K	32KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	4mA @ 5V	-40°C ~ 85°C	Through Hole	-	-	28-EDIP
MCP7940M-I/MS IC RTC CLK/CALENDAR I2C 8MSOP Microchip Technology	879	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	-	1µA @ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-MSOP
MCP7940M-I/P IC RTC CLOCK/CALENDAR I2C 8DIP Microchip Technology	303	-	RFQ	Datasheet	-	8-DIP (0.300", 7.62mm)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	-	1µA @ 5.5V	-40°C ~ 85°C	Through Hole	-	-	8-PDIP
MCP7940N-E/MS IC RTC CLK/CALENDAR I2C 8MSOP Microchip Technology	603	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2µA @ 3.3V	-40°C ~ 125°C	Surface Mount	Automotive	AEC-Q100	8-MSOP
RX8111CE B0 IC RTC CLK/CALENDAR I2C 10SMD EPSON	1,055	-	RFQ	Datasheet	RX8111CE	10-SMD, No Lead	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	I2C	1.6V ~ 5.5V	-	3µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-SMD
DS17887-3+ IC RTC CLK/CALENDAR PAR 24EDIP Analog Devices Inc./Maxim Integrated	1,679	-	RFQ	Datasheet	-	24-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	8KB	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.7V	2.5V ~ 3.7V	2mA @ 2.7V ~ 3.7V	0°C ~ 70°C	Through Hole	-	-	24-EDIP
DS1554WP-120+ IC RTC CLK/CALENDAR PAR 34PCM Analog Devices Inc./Maxim Integrated	1,233	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tray	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K	32KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	2.97V ~ 3.63V	3V	4mA @ 3.3V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module
DS17887-3IND+ IC RTC CLK/CALENDAR PAR 24EDIP Analog Devices Inc./Maxim Integrated	2,372	-	RFQ	Datasheet	-	24-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	8KB	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.7V	2.5V ~ 3.7V	2mA @ 2.7V ~ 3.7V	-40°C ~ 85°C	Through Hole	-	-	24-EDIP
DS1746P-70+ IC RTC CLK/CALENDAR PAR 34PCM Analog Devices Inc./Maxim Integrated	3,392	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tray	Active	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Y2K	128KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	3V	4mA @ 5V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module
DS1556-70IND+ IC RTC CLK/CALENDAR PAR 32EDIP Analog Devices Inc./Maxim Integrated	3,454	-	RFQ	Datasheet	-	32-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K	128KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	6mA @ 5V	-40°C ~ 85°C	Through Hole	-	-	32-EDIP
MCP79400-I/ST IC RTC CLK/CALENDAR I2C 8TSSOP Microchip Technology	400	-	RFQ	Datasheet	-	8-TSSOP (0.173", 4.40mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 5.5V	1.2µA (Typ) @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP

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.