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+ IC RTC CLK/CALENDAR SPI 14TDFN Analog Devices Inc./Maxim Integrated	2,123	-	RFQ	Datasheet	-	14-WFDFN Exposed Pad	Tube	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)
DS1347T+ IC RTC CLK/CALENDAR SPI 8TDFN Analog Devices Inc./Maxim Integrated	1,504	-	RFQ	Datasheet	-	8-WDFN Exposed Pad	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, SRAM	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	2V ~ 5.5V	-	0.7µA ~ 0.8µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-TDFN (3x3)
AS1801-BTDT ULTRA-LOW POWER, IC SERIAL REAL- Austria Micro	4,150	-	RFQ	Datasheet	-	8-UFDFN Exposed Pad	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 ~ 3.6V	0.9V ~ 3.6V	0.5µA @ 1.5V	-40°C ~ 85°C	Surface Mount	-	-	8-TDFN (2x2)
PCF2123U/12AA/1,00 IC RTC/CALENDAR SPI UNCASED NXP USA Inc.	3,240	-	RFQ	Datasheet	*	-	Bulk	Obsolete	Not Verified	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PCF2123U/5GA/1,015 IC RTC/CALENDAR SPI UNCASED NXP USA Inc.	2,749	-	RFQ	Datasheet	*	-	Bulk	Obsolete	Not Verified	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PCF8523U/12AA/1,00 IC RTC/CALENDAR UNCASED DIE FFC NXP USA Inc.	3,025	-	RFQ	Datasheet	*	-	Bulk	Obsolete	Not Verified	-	-	-	-	-	-	-	-	-	-	-	-	-	-
PCF8564AU/5BD/1,01 IC RTC/CALENDAR UNCASED DIE NXP USA Inc.	1,879	-	RFQ	Datasheet	*	-	Bulk	Obsolete	Not Verified	-	-	-	-	-	-	-	-	-	-	-	-	-	-
DS1339AD+T IC RTC CLOCK/CALENDAR I2C 8TDFN Analog Devices Inc./Maxim Integrated	3,320	-	RFQ	Datasheet	-	-	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	1.71V ~ 5.5V	1.3V ~ 3.7V	200µA @ 1.71V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-TDFN EP
DS1341T+ IC RTC CLK/CALENDAR I2C 8TDFN Analog Devices Inc./Maxim Integrated	1,966	-	RFQ	Datasheet	-	8-WDFN Exposed Pad	Tube	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.5µA ~ 0.6µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-TDFN (3x3)
PCA8802CX8/B/1,027 IC RTC BINARY COUNTER I2C DIE NXP USA Inc.	2,870	-	RFQ	Datasheet	-	Die	Tape & Reel (TR)	Obsolete	Not Verified	Binary Counter	Square Wave Output, Unique ID	-	Binary	Binary	I2C, 2-Wire Serial	1.6V ~ 5.5V	-	0.4µA @ 1.6V ~ 5.5V	-40°C ~ 85°C	-	-	-	Die
DP8573AVX IC RTC CLK/CALENDAR PAR 28PLCC Texas Instruments	3,451	-	RFQ	Datasheet	-	28-LCC (J-Lead)	Tape & Reel (TR)	Obsolete	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)
DS1254WB2-150 IC RTC PHANTOM CHIP PAR 80BGA Analog Devices Inc./Maxim Integrated	3,644	-	RFQ	Datasheet	-	80-BBGA	Tray	Obsolete	Not Verified	Phantom Time Chip	Leap Year, NVSRAM	2MB	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.7V	3V	7mA @ 3.3V	0°C ~ 70°C	Surface Mount	-	-	80-BGA (40x40)
DS1318 IC RTC ELAPSED CNT PAR 24TSSOP Analog Devices Inc./Maxim Integrated	2,869	-	RFQ	Datasheet	-	24-TSSOP (0.173", 4.40mm Width)	Tube	Obsolete	Not Verified	Elapsed Time Counter	Alarm, Square Wave Output	-	Binary	Binary	Parallel	3V ~ 3.6V	1.6V ~ 3.7V	150µA @ 3V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	24-TSSOP
DS1371U IC RTC BINARY COUNTER I2C 8UMAX Analog Devices Inc./Maxim Integrated	2,415	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Obsolete	Not Verified	Binary Counter	Alarm, Square Wave Output, Watchdog Timer	-	Binary	Binary	I2C, 2-Wire Serial	1.7V ~ 5.5V	-	1.3µA @ 1.7V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-uMAX/uSOP
DS1374U-33 IC RTC BINARY COUNTER I2C 10UMAX Analog Devices Inc./Maxim Integrated	2,469	-	RFQ	Datasheet	-	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Tube	Obsolete	Not Verified	Binary Counter	Alarm, Square Wave Output, Trickle-Charger, Watchdog Timer	-	Binary	Binary	I2C, 2-Wire Serial	2.97V ~ 5.5V	1.3V ~ 5.5V	175µA @ 2.97V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	10-uMAX/uSOP
DS1391U-33 IC RTC CLK/CALENDAR SPI 10UMAX Analog Devices Inc./Maxim Integrated	4,098	-	RFQ	Datasheet	-	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Trickle-Charger	-	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	2.97V ~ 5.5V	1.3V ~ 5.5V	175µA @ 2.97V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	10-uMAX/uSOP
PCA8802U/2AA/1,026 IC RTC BINARY COUNTER I2C DIE NXP USA Inc.	4,083	-	RFQ	Datasheet	-	Die	Tray	Obsolete	Not Verified	Binary Counter	Square Wave Output, Unique ID	-	Binary	Binary	I2C, 2-Wire Serial	1.6V ~ 5.5V	-	0.4µA @ 1.6V ~ 5.5V	-40°C ~ 85°C	-	-	-	Die
PCA8802UG/12KB/1,0 IC RTC BINARY COUNTER I2C 8WLCSP NXP USA Inc.	3,124	-	RFQ	Datasheet	-	8-XFBGA, WLCSP	Bulk	Obsolete	Not Verified	Binary Counter	Square Wave Output, Unique ID	-	Binary	Binary	I2C, 2-Wire Serial	1.6V ~ 5.5V	-	0.4µA @ 1.6V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	8-WLCSP
PCF8564AU/5GC/1,01 IC RTC CLOCK/CALENDAR I2C DIE NXP USA Inc.	2,372	-	RFQ	Datasheet	-	Die	Bulk	Obsolete	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
1337GDCGI8 IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	1,487	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	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, 2-Wire Serial	1.8V ~ 5.5V	-	0.6µA @ 1.3V ~ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC

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.