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
DS1343D-18+T&R IC RTC CLK/CALENDAR SPI 14TDFN Analog Devices Inc./Maxim Integrated	2,200	-	RFQ	Datasheet	-	14-WFDFN Exposed Pad	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.71V ~ 5.5V	1.3V ~ 5.5V	-	-40°C ~ 85°C	Surface Mount	-	-	14-TDFN (3x3)
DS1673E-3 IC RTC SYST CTRLR SER 20TSSOP Analog Devices Inc./Maxim Integrated	2,418	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tube	Obsolete	Not Verified	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2.7V ~ 3.3V	2.5V ~ 3.7V	100µA @ 3V	0°C ~ 70°C	Surface Mount	-	-	20-TSSOP
DS1673E-5 IC RTC SYST CTRLR SER 20TSSOP Analog Devices Inc./Maxim Integrated	3,900	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tube	Obsolete	Not Verified	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.7V	300µA @ 5V	0°C ~ 70°C	Surface Mount	-	-	20-TSSOP
DS1677E IC RTC SYST CTRLR SER 20TSSOP Analog Devices Inc./Maxim Integrated	3,245	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tube	Obsolete	Not Verified	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.7V	300µA @ 5V	0°C ~ 70°C	Surface Mount	-	-	20-TSSOP
DS1673S-3 IC RTC SYST CTRLR SER 20SOIC Analog Devices Inc./Maxim Integrated	3,528	-	RFQ	Datasheet	-	20-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	Not Verified	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2.7V ~ 3.3V	2.5V ~ 3.7V	100µA @ 3V	0°C ~ 70°C	Surface Mount	-	-	20-SOIC
DS1501W+ IC RTC CLK/CALENDAR PAR 28DIP Analog Devices Inc./Maxim Integrated	2,905	-	RFQ	Datasheet	-	28-DIP (0.600", 15.24mm)	Bulk	Obsolete	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	3V ~ 3.6V	2.5V ~ 3.7V	4mA @ 3V ~ 3.6V	0°C ~ 70°C	Through Hole	-	-	28-PDIP
DS1343E-18+T&R IC RTC CLK/CALENDAR SPI 20TSSOP Analog Devices Inc./Maxim Integrated	2,336	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.71V ~ 5.5V	1.3V ~ 5.5V	-	-40°C ~ 85°C	Surface Mount	-	-	20-TSSOP
BQ4802YDSH IC RTC CLK/CALENDAR PAR 28SOP Texas Instruments	2,940	-	RFQ	Datasheet	-	28-SOIC (0.345", 8.77mm Width) with SNAPHAT Sockets	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Daylight Savings, Leap Year, Supervisor, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.4V ~ 4V	1.5mA (Typ) @ 4.5 V ~ 5.5 V	0°C ~ 70°C	Surface Mount	-	-	28-SOP
UPD4991AGS-A RTC, VOLATILE, 1 TIMER(S) PDSO Renesas Electronics Corporation	9,671	-	RFQ	Datasheet	*	-	Bulk	Active	Not Verified	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ISL12024IBZ-T IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	1,455	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Unique ID	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	10µA ~ 20µA @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
DS1501WN+ IC RTC CLK/CALENDAR PAR 28DIP Analog Devices Inc./Maxim Integrated	4,987	-	RFQ	Datasheet	-	28-DIP (0.600", 15.24mm)	Bulk	Obsolete	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	3V ~ 3.6V	2.5V ~ 3.7V	4mA @ 3V ~ 3.6V	-40°C ~ 85°C	Through Hole	-	-	28-PDIP
DS12885T IC RTC CLK/CALENDAR PAR 32TQFP Analog Devices Inc./Maxim Integrated	3,116	-	RFQ	Datasheet	-	32-TQFP	Tray	Obsolete	Not Verified	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 4V	15mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	-	-	32-TQFP (7x7)
DS17485S-5/T&R/C01 DS17485 REAL-TIME CLOCK Analog Devices Inc./Maxim Integrated	12,000	-	RFQ	Datasheet	-	24-SOIC (0.295", 7.50mm Width)	Bulk	Active	-	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	4KB	HH:MM:SS (12/24 hr)	YY-MM-DD	Parallel	2.7V ~ 3.7V, 4.5V ~ 5.5V	2.5V ~ 3.7V	2mA @ 2.7V ~ 3.7V	0°C ~ 70°C (TA)	Surface Mount	-	-	24-SOIC
DS1344D-18+T&R IC RTC CLK/CALENDAR SPI 14TDFN Analog Devices Inc./Maxim Integrated	608	-	RFQ	Datasheet	-	14-WFDFN Exposed Pad	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVRAM, Square Wave Output, Trickle Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.71V ~ 5.5V	1.3V ~ 5.5V	-	-40°C ~ 85°C	Surface Mount	-	-	14-TDFN (3x3)
DS1501YE IC RTC CLK/CALENDAR PAR 28TSOP Analog Devices Inc./Maxim Integrated	3,620	-	RFQ	Datasheet	-	28-TSSOP (0.465", 11.80mm Width)	Bag	Obsolete	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	Surface Mount	-	-	28-TSOP
M41T315V-85MH6F IC RTC PHANTOM CHIP SER 28SOH STMicroelectronics	175	-	RFQ	Datasheet	-	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	Tape & Reel (TR)	Obsolete	Not Verified	Phantom Time Chip	Leap Year, Supervisor	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Serial	3V ~ 3.6V	2.5V ~ 3.7V	2mA @ 2.7V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	28-SOH
DS1501YE+ IC RTC CLK/CALENDAR PAR 28TSOP Analog Devices Inc./Maxim Integrated	3,751	-	RFQ	Datasheet	-	28-TSSOP (0.465", 11.80mm Width)	Bulk	Obsolete	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	Surface Mount	-	-	28-TSOP
DS1688 IC RTC CLK/CALENDAR PAR 28DIP Analog Devices Inc./Maxim Integrated	2,896	-	RFQ	Datasheet	-	28-DIP (0.600", 15.24mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Unique ID	114B	HH:MM:SS (12/24 hr)	YY-MM-DD	Parallel	2.7V ~ 3.3V, 4.5V ~ 5.5V	-	-	0°C ~ 70°C	Through Hole	-	-	28-PDIP
DS1689 IC RTC CLK/CALENDAR PAR 28DIP Analog Devices Inc./Maxim Integrated	2,227	-	RFQ	Datasheet	-	28-DIP (0.600", 15.24mm)	Tube	Obsolete	Not Verified	Clock/Calendar	NVSRAM	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	2.7V ~ 3.3V, 4.5V ~ 5.5V	2.5V ~ 3.7V	2mA @ 3V, 3mA @ 5V	0°C ~ 70°C	Through Hole	-	-	28-PDIP
DS17285E-5 IC RTC CLK/CALENDAR PAR 28TSOP Analog Devices Inc./Maxim Integrated	1,447	-	RFQ	Datasheet	-	28-TSSOP (0.465", 11.80mm Width)	Bag	Obsolete	Not Verified	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	2KB	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	-	-	28-TSOP

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?

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