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
DS2404S-001 IC RTC BINARY CTR 1-WIRE 16SOIC Analog Devices Inc./Maxim Integrated	3,547	-	RFQ	Datasheet	EconoRAM	16-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	Not Verified	Binary Counter	Alarm, Square Wave Output, SRAM	512B	Binary	Binary	1-Wire® and 3-Wire	2.8V ~ 5.5V	2.8V ~ 5.5V	500µA @ 5V	-40°C ~ 85°C	Surface Mount	-	-	16-SOIC
M41T56C64MY6F IC RTC CLK/CALENDAR I2C 18SOX STMicroelectronics	4,121	-	RFQ	Datasheet	-	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	EEPROM, Leap Year, NVSRAM	56B, 8KB	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.5V	100µA (Typ) @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	18-SOX
BQ4802LYDSH IC RTC CLK/CALENDAR PAR 28SOP Texas Instruments	4,963	-	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	2.7V ~ 3.6V	2.4V ~ 4V	1.5mA (Typ) @ 2.7 V ~ 3.6 V	0°C ~ 70°C	Surface Mount	-	-	28-SOP
RTC-4701NB:B3 ROHS IC RTC CLK/CALENDAR SER 22SON EPSON	3,452	-	RFQ	Datasheet	-	22-LFDFN	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	3-Wire Serial	1.6V ~ 5.5V	-	-	-40°C ~ 85°C	Surface Mount	-	-	22-SON (6.3x4.8)
RX-4574LC:B3 PURE SN IC RTC CLK/CALENDAR SER 12VSOJ EPSON	1,373	-	RFQ	Datasheet	RX-4581NB	12-TFSOJ (0.094", 2.40mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	3-Wire Serial	1.6V ~ 5.5V	-	0.7µA ~ 0.9µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	12-VSOJ
DS1685S-3+T&R IC RTC CLK/CALENDAR PAR 24SOIC Analog Devices Inc./Maxim Integrated	3,510	-	RFQ	Datasheet	-	24-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	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	0°C ~ 70°C	Surface Mount	-	-	24-SOIC
DS1685E-5+T&R IC RTC CLK/CALENDAR PAR 24TSSOP Analog Devices Inc./Maxim Integrated	4,430	-	RFQ	Datasheet	-	24-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	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	-	-	24-TSSOP
DS1685E-3+T&R IC RTC CLK/CALENDAR PAR 24TSSOP Analog Devices Inc./Maxim Integrated	2,620	-	RFQ	Datasheet	-	24-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	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	0°C ~ 70°C	Surface Mount	-	-	24-TSSOP
RA-4565SA:B3 ROHS IC RTC CLK/CALENDAR SER 14SOP EPSON	2,811	-	RFQ	Datasheet	-	14-SOIC (0.197", 5.00mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	4-Wire Serial	1.6V ~ 5.5V	-	1.6µA ~ 2µA @ 3V ~ 5V	-40°C ~ 125°C	Surface Mount	Automotive	AEC-Q200	14-SOP
DS1501WN IC RTC CLK/CALENDAR PAR 28DIP Analog Devices Inc./Maxim Integrated	1,197	-	RFQ	Datasheet	-	28-DIP (0.600", 15.24mm)	Tube	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
DS1501YN IC RTC CLK/CALENDAR PAR 28DIP Analog Devices Inc./Maxim Integrated	4,552	-	RFQ	Datasheet	-	28-DIP (0.600", 15.24mm)	Tube	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	-40°C ~ 85°C	Through Hole	-	-	28-PDIP
RX-4571LCB PURE SN RX-4571LC:B RTC {SN-AG OR SN} VS EPSON	2,169	-	RFQ	Datasheet	RX-4571LC	12-TFSOJ (0.094", 2.40mm Width)	Bulk	Active	-	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS	YY-MM-DD	3-Wire Serial	1.6V ~ 5.5V	1V ~ 5.5V	950nA ~ 1µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	12-VSOJ
RX-8571LC:B PURE SN 5+/-23PPM RTC BULK - CUT TAPE EPSON	4,188	-	RFQ	Datasheet	RX-8571LC	12-TFSOJ (0.094", 2.40mm Width)	Bulk	Active	-	Clock/Calendar	Alarm, RAM	16B	HH:MM:SS	YY-MM-DD	I2C	1.6V ~ 5.5V	1.3V ~ 5.5V	0.4µA @ 3V	-40°C ~ 85°C	Surface Mount	-	-	12-VSOJ
MAX6902ETA+T IC RTC CLK/CALENDAR SPI 8TDFN Analog Devices Inc./Maxim Integrated	1,436	-	RFQ	Datasheet	-	8-WDFN Exposed Pad	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Y2K	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	-	1.05µA ~ 4.2µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-TDFN (3x3)
RX-4803SA:UAB PURE SN IC RTC CLK/CALENDAR SPI 14SOP EPSON	1,615	-	RFQ	Datasheet	RX-4803SA	14-SOIC (0.197", 5.00mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	2.1µA ~ 3.4µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
RX-8803SA:UA PURE SN IC RTC CLK/CALENDAR I2C 14SOP EPSON	2,767	-	RFQ	Datasheet	RX-8803SA	14-SOIC (0.197", 5.00mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm	-	HH:MM:SS	YY-MM-DD	I2C	1.6V ~ 5.5V	-	2.1µA ~ 3.4µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOP
M41T00SC64MY6F IC RTC CLK/CALENDAR I2C 18SOX STMicroelectronics	3,992	-	RFQ	Datasheet	-	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	EEPROM, Leap Year	8KB	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	2.5V ~ 35V	100µA (Typ) @ 2.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	18-SOX
DS2404B IC RTC BINARY CTR 1-WIRE 16SSOP Analog Devices Inc./Maxim Integrated	2,657	-	RFQ	Datasheet	EconoRAM	16-SSOP (0.209", 5.30mm Width)	Tube	Obsolete	Not Verified	Binary Counter	Alarm, Square Wave Output, SRAM	512B	Binary	Binary	1-Wire® and 3-Wire	2.8V ~ 5.5V	2.8V ~ 5.5V	500µA @ 5V	-40°C ~ 85°C	Surface Mount	-	-	16-SSOP
DS1501WE/T&R IC RTC CLK/CALENDAR PAR 28TSOP Analog Devices Inc./Maxim Integrated	4,310	-	RFQ	Datasheet	-	28-TSSOP (0.465", 11.80mm Width)	Tape & Reel (TR)	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	Surface Mount	-	-	28-TSOP
DS1685-5IND+ IC RTC CLK/CALENDAR PAR 24DIP Analog Devices Inc./Maxim Integrated	4,580	-	RFQ	Datasheet	-	24-DIP (0.600", 15.24mm)	Tube	Obsolete	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	Through Hole	-	-	24-PDIP

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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