Real Time Clocks

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
MCP79511T-I/MN IC RTC CLK/CALENDAR SPI 10TDFN Microchip Technology	3,588	1.38	RFQ	-	-	10-WFDFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	10-TDFN (3x3)
MCP79512T-I/MN IC RTC CLK/CALENDAR SPI 10TDFN Microchip Technology	3,078	1.38	RFQ	-	-	10-WFDFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	10-TDFN (3x3)
MCP79512T-I/MS IC RTC CLK/CALENDAR SPI 10MSOP Microchip Technology	3,626	1.38	RFQ	-	-	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	10-MSOP
MCP79520T-I/MN IC RTC CLK/CALENDAR SPI 10TDFN Microchip Technology	3,897	1.38	RFQ	-	-	10-WFDFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	10-TDFN (3x3)
M41T0DS6F IC RTC CLK/CALENDAR I2C 8-TSSOP STMicroelectronics	3,606	0.00	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	-	-	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	2V ~ 5.5V	-	1.2µA ~ 31µA @ 3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	-
EM3027IDSSO8A+ LINEAR IC EM Microelectronic	1,338	0.00	RFQ	-	-	8-SOIC (0.154", 3.90mm Width)	Tube	Last Time Buy	-	Clock/Calendar	Alarm, EEPROM, Leap Year, RAM, Trickle-Charger	8B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C	1.4V ~ 5.5V	1.4V ~ 5.5V	4.6µA ~ 5.5µA @ 1.4V ~ 5V	-40°C ~ 85°C (TA)	Surface Mount	-	-	8-SOIC
DS1337S IC RTC CLK/CALENDAR I2C 8SOIC Analog Devices Inc./Maxim Integrated	2,876	1.00	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tube	Obsolete	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
M41T0DS6E IC RTC CLOCK/CALENDAR I2C STMicroelectronics	1,364	0.00	RFQ	Datasheet	-	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	-	-	HH:MM:SS	YY-MM-DD-dd	I2C, 2-Wire Serial	2V ~ 5.5V	-	1.2µA ~ 31µA @ 3V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	-
ISL1208IB8Z-TKR5291 IC RTC CLK/CALENDAR I2C 8SOIC Renesas Electronics Corporation	1,194	0.00	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, SRAM	2B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	2.7V ~ 5.5V	1.8V ~ 5.5V	4µA ~ 6µA @ 3V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
DS2417P IC RTC BINARY CNTR 1-WIRE 6TSOC Analog Devices Inc./Maxim Integrated	4,877	1.49	RFQ	Datasheet	-	6-SMD, J-Lead	Tube	Obsolete	Not Verified	Binary Counter	Unique ID	-	Binary	Binary	1-Wire® Serial	2.5V ~ 5.5V	-	0.45µA @ 2.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	6-TSOC
MCP79521T-I/MN IC RTC CLK/CALENDAR SPI 10TDFN Microchip Technology	3,805	1.49	RFQ	-	-	10-WFDFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	10-TDFN (3x3)
MCP79522T-I/MN IC RTC CLK/CALENDAR SPI 10TDFN Microchip Technology	3,396	1.49	RFQ	-	-	10-WFDFN Exposed Pad	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	10-TDFN (3x3)
MCP79522T-I/MS IC RTC CLK/CALENDAR SPI 10MSOP Microchip Technology	4,563	1.49	RFQ	-	-	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, EEPROM, Leap Year, Square Wave Output, SRAM, Unique ID	64B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	SPI	1.8V ~ 3.6V	1.3V ~ 3.6V	1µA @ 1.8V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	10-MSOP
DS2415P/T&R IC RTC REAL TIME CLK 1WIRE 6TSOC Analog Devices Inc./Maxim Integrated	3,629	0.00	RFQ	Datasheet	-	6-SMD, J-Lead	Tape & Reel (TR)	Obsolete	Not Verified	Real Time Clock (RTC)	-	-	Binary	Binary	1-Wire® Serial	3V, 3.3V, 5V	-	-	-40°C ~ 85°C	Surface Mount	-	-	6-TSOC
PCF8583T/5,512 IC RTC CLOCK/CALENDAR I2C 8SO NXP USA Inc.	3,456	0.00	RFQ	Datasheet	-	8-SOIC (0.295", 7.50mm Width)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, NVSRAM, Square Wave Output	240B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD	I2C, 2-Wire Serial	2.5V ~ 6V	-	10µA ~ 50µA @ 1V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SO
DS1672S-3/T&R IC RTC BINARY COUNTER I2C 8SOIC Analog Devices Inc./Maxim Integrated	1,394	0.00	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Binary Counter	Trickle-Charger	-	Binary	Binary	I2C, 2-Wire Serial	2.7V ~ 3.3V	1.3V ~ 3.63V	500µA @ 3.3V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
RV-4162-C7-32.768KHZ-20PPM-TA-QA IC RTC CLK/CALENDAR I2C 8SON Micro Crystal AG	3,602	1.42	RFQ	Datasheet	C7	8-WCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Programmable Clock Output, Watchdog Timer	-	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1V ~ 4.4V	-	0.5µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	Automotive	AEC-Q200	8-SON (3.2x1.5)
MAX31331TETB+T ULTRA-LOW POWER 12C REAL TIME CL Analog Devices Inc./Maxim Integrated	4,830	0.00	RFQ	Datasheet	-	10-WFDFN Exposed Pad	Tape & Reel (TR)	Active	-	Clock/Calendar	Alarm, Leap Year, RAM, Square Wave Output, Trickle Charger	32B	HH:MM:SS (12/24 hr)	YY-MM-DD	I2C	1.1V ~ 5.5V	1.1V ~ 5.5V	0.65µA ~ 0.7µA @ 1.1V ~ 5.5V	-40°C ~ 85°C (TA)	Surface Mount	-	-	10-TDFN (3x3)
1337AGDVGI8 IC RTC CLK/CALENDAR I2C 8TSSOP Renesas Electronics Corporation	4,343	1.65	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	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1.8V ~ 5.5V	-	0.3µA @ 1.3V ~ 1.8V	-40°C ~ 85°C	Surface Mount	-	-	8-TSSOP
RV-4162-C7-32.768KHZ-10PPM-TA-QC IC RTC CLK/CALENDAR I2C 8SON Micro Crystal AG	2,227	1.48	RFQ	Datasheet	C7	8-WCDFN	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Leap Year, Programmable Clock Output, Watchdog Timer	-	HH:MM:SS:hh (24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	1V ~ 4.4V	-	0.5µA @ 3V	-40°C ~ 85°C (TA)	Surface Mount	-	-	8-SON (3.2x1.5)

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