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
RTC-8564NBB0 ROHS IC RTC CLK/CALENDAR I2C 22SON EPSON	1,947	-	RFQ	Datasheet	RTC-8564NB	22-SMD, 20 Leads, Flat Leads	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Y2K	-	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.7µA ~ 0.8µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	22-SON
RX8804CE XA0 IC RTC CLK/CALENDAR I2C 10SMD EPSON	2,081	-	RFQ	Datasheet	RX8804CE	10-SMD, No Lead	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Watchdog Timer	-	HH:MM:SS	YY-MM-DD	I2C	1.6V ~ 5.5V	1.5V ~ 5.5V	1.5µA ~ 1.6µA @ 3V ~ 5V	-40°C ~ 105°C (TA)	Surface Mount	-	-	10-SMD
M41T93SMY6E IC RTC CLK/CALENDAR SPI 18SOX STMicroelectronics	3,566	-	RFQ	Datasheet	-	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	SPI	3V ~ 5.5V	1.8V ~ 5.5V	10µA @ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	18-SOX
M41T93ZMY6E IC RTC CLK/CALENDAR SPI 18SOX STMicroelectronics	2,588	-	RFQ	Datasheet	-	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	7B	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	SPI	2.38V ~ 5.5V	1.8V ~ 5.5V	10µA @ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	18-SOX
RX-4803LCUB0 PURE SN IC RTC CLK/CALENDAR SPI 12VSOJ EPSON	1,240	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
ISL12022IBZ-T IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	1,437	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Daylight Savings, Leap Year, SRAM	128B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	14µA ~ 15µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
DS1685-5 IC RTC CLK/CALENDAR PAR 24DIP Analog Devices Inc./Maxim Integrated	2,468	-	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	0°C ~ 70°C	Through Hole	-	-	24-PDIP
DS1685-3 IC RTC CLK/CALENDAR PAR 24DIP Analog Devices Inc./Maxim Integrated	3,027	-	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	2.7V ~ 3.7V	2.5V ~ 3.7V	2mA @ 3V	0°C ~ 70°C	Through Hole	-	-	24-PDIP
BQ3285S-SB2TRG4 IC RTC CLK/CALENDAR PAR 24SOIC Texas Instruments	2,732	-	RFQ	Datasheet	-	24-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	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	-	0°C ~ 70°C	Surface Mount	-	-	24-SOIC
ISL12024IBZ IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	3,579	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	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
DS1305EN IC RTC CLK/CALENDAR SPI 20TSSOP Analog Devices Inc./Maxim Integrated	4,701	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Trickle-Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 5.5V	25.3µA ~ 81µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	20-TSSOP
DS1305N IC RTC CLK/CALENDAR SPI 16DIP Analog Devices Inc./Maxim Integrated	3,768	-	RFQ	Datasheet	-	16-DIP (0.300", 7.62mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Trickle-Charger	96B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	2V ~ 5.5V	25.3µA ~ 81µA @ 2V ~ 5V	-40°C ~ 85°C	Through Hole	-	-	16-PDIP
M48T86MH1E IC RTC CLK/CALENDAR PAR 28SOH STMicroelectronics	3,739	-	RFQ	Datasheet	-	28-SOP (0.350", 8.89mm Width) with SNAPHAT Sockets	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output	114B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	15mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	-	-	28-SOH
RX-8803LCUC0 PURE SN IC RTC CLK/CALENDAR I2C 12VSOJ EPSON	2,390	-	RFQ	Datasheet	-	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
DS1339U-2+T&R IC RTC CLOCK/CALENDAR I2C 8UMAX Analog Devices Inc./Maxim Integrated	3,733	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	1.3V ~ 3.7V	100µA @ 2.2V	-40°C ~ 85°C	Surface Mount	-	-	8-uMAX/uSOP
RX4111CE BB IC RTC CLK/CALENDAR SPI 10SMD EPSON	2,495	-	RFQ	Datasheet	RX4111CE	10-SMD, No Lead	Bulk	Active	Not Verified	Clock/Calendar	Alarm, RAM	-	HH:MM:SS	YY-MM-DD	SPI, 4-Wire Serial	1.6V ~ 5.5V	-	3µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-SMD
M41T56C64MY6E IC RTC CLK/CALENDAR I2C 18SOX STMicroelectronics	4,276	-	RFQ	Datasheet	-	18-SOX, 18-SOIC with Crystal (7.5mm Width)	Tube	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
RX-8731LC:B3 IC RTC CLK/CALENDAR I2C 12VSOJ EPSON	4,898	-	RFQ	Datasheet	RX-8731LC	12-TFSOJ (0.094", 2.40mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Unique ID	80b	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C	1.7V ~ 5.5V	-	1.4µA ~ 1.5µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	12-VSOJ
DS1685S-3 IC RTC CLK/CALENDAR PAR 24SOIC Analog Devices Inc./Maxim Integrated	2,659	-	RFQ	Datasheet	-	24-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	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
RX8111CE AB IC RTC CLK/CALENDAR I2C 10SMD EPSON	1,604	-	RFQ	Datasheet	RX8111CE	10-SMD, No Lead	Bulk	Active	Not Verified	Clock/Calendar	Alarm, RAM	-	HH:MM:SS	YY-MM-DD	I2C	1.6V ~ 5.5V	-	3µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-SMD

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?

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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.

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