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
DS1254YB-100 IC RTC PHANTOM CHIP PAR 168BGA Analog Devices Inc./Maxim Integrated	2,130	-	RFQ	Datasheet	-	168-BBGA Module	Bag	Obsolete	Not Verified	Phantom Time Chip	Leap Year, NVSRAM	2MB	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	3V	7mA @ 3.3V	0°C ~ 70°C	Surface Mount	-	-	168-BGA (40x40)
PCF2123BS/1,518 IC RTC CLK/CALENDAR SPI 16HVQFN NXP USA Inc.	4,733	-	RFQ	Datasheet	-	16-VFQFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	SPI	1.6V ~ 5.5V	-	0.33µA ~ 0.38µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	16-HVQFN (3x3)
RS5C372A-E2-F IC RTC CLK/CALENDAR I2C 8SSOP Nisshinbo Micro Devices Inc.	4,383	-	RFQ	Datasheet	-	8-LSSOP (0.173", 4.40mm 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 ~ 6V	-	0.9µA ~ 2µA @ 3V ~ 6V	-40°C ~ 85°C	Surface Mount	-	-	8-SSOP
MAX31341CETB+T IC RTC CLK/CALENDAR I2C 10TDFN Analog Devices Inc./Maxim Integrated	4,277	-	RFQ	Datasheet	-	10-WFDFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, RAM, Square Wave Output, Trickle Charger	64B	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C	1.6V ~ 3.6V	1.6V ~ 3.6V	0.33µA ~ 0.39µA @ 1.6V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	10-TDFN (3x3)
DS1371U+ IC RTC BINARY COUNTER I2C 8UMAX Analog Devices Inc./Maxim Integrated	2,187	-	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Active	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
RX-8564LC:B0 PURE SN IC RTC CLK/CALENDAR I2C 12VSOJ EPSON	1,946	-	RFQ	Datasheet	RX-8564LC	12-TFSOJ (0.094", 2.40mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.65µA ~ 0.8µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	12-VSOJ
DS1344E-3+T&R IC RTC CLK/CALENDAR SPI 20TSSOP Analog Devices Inc./Maxim Integrated	1,102	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Active	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	2.7V ~ 5.5V	1.3V ~ 5.5V	-	-40°C ~ 85°C	Surface Mount	-	-	20-TSSOP
AB-RTCMC-32.768KHZ-B5ZE-S3-T IC RTC CLK/CALENDAR I2C MODULE Abracon LLC	1,949	-	RFQ	Datasheet	-	10-SMD Module	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	1.2V ~ 5.5V	1.8V ~ 5.5V	0.5µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	Module
DS1305EN+ IC RTC CLK/CALENDAR SPI 20TSSOP Analog Devices Inc./Maxim Integrated	1,442	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tube	Active	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
DS3231SN#T&R IC RTC CLK/CALENDAR I2C 16SOIC Analog Devices Inc./Maxim Integrated	4,364	-	RFQ	Datasheet	-	16-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, TCXO/Crystal	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	110µA ~ 170µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	16-SOIC
M48T35-70PC1 IC RTC CLK/CALENDAR PAR 28DIP STMicroelectronics	4,493	-	RFQ	Datasheet	Timekeeper®	28-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.75V ~ 5.5V	-	2mA @ 4.75V ~ 5.5V	0°C ~ 70°C	Through Hole	-	-	28-PCDIP, CAPHAT®
MCP795W20-I/SL IC RTC CLK/CALENDAR SPI 14SOIC Microchip Technology	4,373	-	RFQ	Datasheet	-	14-SOIC (0.154", 3.90mm Width)	Tube	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Watchdog Timer	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	14-SOIC
MAX31341BEWC+T IC RTC CLK/CALENDAR I2C 12WLP Analog Devices Inc./Maxim Integrated	3,861	-	RFQ	Datasheet	-	12-WFBGA, WLBGA	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	64B	HH:MM:SS (24 hr)	YY-MM-DD-dd	I2C	1.6V ~ 3.6V	1.6V ~ 3.6V	0.33µA ~ 0.39µA @ 1.6V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	12-WLP (2.14x1.56)
DS3231MZ/V+T IC RTC CLK/CALENDAR I2C 8SOIC Analog Devices Inc./Maxim Integrated	3,386	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Not For New Designs	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.3V ~ 5.5V	2.3V ~ 5.5V	130µA ~ 200µA @ 3.63V ~ 5.5V	-40°C ~ 85°C	Surface Mount	Automotive	AEC-Q100	8-SOIC
M48T58Y-70PC1 IC RTC CLK/CALENDAR PAR 28-DIP STMicroelectronics	2,811	-	RFQ	Datasheet	Timekeeper®	28-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Through Hole	-	-	28-PCDIP, CAPHAT®
M48T12-150PC1 IC RTC CLK/CALENDAR PAR 24DIP STMicroelectronics	2,900	-	RFQ	Datasheet	Timekeeper®	24-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Through Hole	-	-	24-PCDIP, CAPHAT®
M48T58-70PC1 IC RTC CLK/CALENDAR PAR 28DIP STMicroelectronics	1,068	-	RFQ	Datasheet	Timekeeper®	28-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Leap Year	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.75V ~ 5.5V	-	3mA @ 4.75V ~ 5.5V	0°C ~ 70°C	Through Hole	-	-	28-PCDIP, CAPHAT®
MCP7940M-I/ST IC RTC CLK/CALENDAR I2C 8TSSOP Microchip Technology	1,392	-	RFQ	Datasheet	-	8-TSSOP (0.173", 4.40mm 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-TSSOP
EM3028V3TP14B IC RTC CLK/CALENDAR I2C 14TSSOP EM Microelectronic	0	1+：$1.58000 10+：$1.10000 25+：$0.98560 100+：$0.86330 250+：$0.80592 500+：$0.77164 1000+：$0.74359	RFQ	Datasheet	-	14-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Trickle-Charger	43B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.1V ~ 5.5V	1.1V ~ 5.5V	0.4µA @ 5V	-40°C ~ 85°C	Surface Mount	-	-	14-TSSOP
M48T18-100PC1 IC RTC CLK/CALENDAR PAR 28DIP STMicroelectronics	3,641	-	RFQ	Datasheet	Timekeeper®	28-DIP Module (0.600", 15.24mm)	Tube	Active	Not Verified	Clock/Calendar	Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Through Hole	-	-	28-PCDIP, CAPHAT®

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.

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