Real Time Clocks

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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
DS1501YSN IC RTC CLK/CALENDAR PAR 28SOIC Analog Devices Inc./Maxim Integrated	3,866	-	RFQ	Datasheet	-	28-SOIC (0.295", 7.50mm Width)	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	Surface Mount	-	-	28-SOIC
DS14285QN IC RTC CLK/CALENDAR PAR 28PLCC Analog Devices Inc./Maxim Integrated	1,238	-	RFQ	Datasheet	-	28-LCC (J-Lead)	Tube	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 ~ 3.6V	0.5µA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	28-PLCC (11.51x11.51)
DS1501YS IC RTC CLK/CALENDAR PAR 28SOIC Analog Devices Inc./Maxim Integrated	1,591	-	RFQ	Datasheet	-	28-SOIC (0.295", 7.50mm Width)	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	0°C ~ 70°C	Surface Mount	-	-	28-SOIC
DS14285SN IC RTC CLK/CALENDAR PAR 24SOIC Analog Devices Inc./Maxim Integrated	3,243	-	RFQ	Datasheet	-	24-SOIC (0.295", 7.50mm Width)	Tube	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 ~ 3.6V	0.5µA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	24-SOIC
DS1501WS IC RTC CLK/CALENDAR PAR 28SOIC Analog Devices Inc./Maxim Integrated	2,440	-	RFQ	Datasheet	-	28-SOIC (0.295", 7.50mm Width)	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	0°C ~ 70°C	Surface Mount	-	-	28-SOIC
DS14285S IC RTC CLK/CALENDAR PAR 24SOIC Analog Devices Inc./Maxim Integrated	1,473	-	RFQ	Datasheet	-	24-SOIC (0.295", 7.50mm Width)	Tube	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 ~ 3.6V	0.5µA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	-	-	24-SOIC
DS14285 IC RTC CLK/CALENDAR PAR 24DIP Analog Devices Inc./Maxim Integrated	3,047	-	RFQ	Datasheet	-	24-DIP (0.600", 15.24mm)	Tube	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 ~ 3.6V	0.5µA @ 4.5V ~ 5.5V	0°C ~ 70°C	Through Hole	-	-	24-PDIP
DS1685SN-5 IC RTC CLK/CALENDAR PAR 24SOIC Analog Devices Inc./Maxim Integrated	1,816	-	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	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 5V	-40°C ~ 85°C	Surface Mount	-	-	24-SOIC
DS1678 IC RTC TIME EVENT REC I2C 8DIP Analog Devices Inc./Maxim Integrated	2,941	-	RFQ	Datasheet	-	8-DIP (0.300", 7.62mm)	Tube	Obsolete	Not Verified	Time Event Recorder	Alarm, Leap Year, NVSRAM, Y2K	32B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	I2C, 2-Wire Serial	4.5V ~ 5.5V	2.6V ~ 3.5V	-	-40°C ~ 85°C	Through Hole	-	-	8-PDIP
DS1306N IC RTC CLK/CALENDAR SPI 16DIP Analog Devices Inc./Maxim Integrated	4,257	-	RFQ	Datasheet	-	16-DIP (0.300", 7.62mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, 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
DS1306 IC RTC CLK/CALENDAR SPI 16DIP Analog Devices Inc./Maxim Integrated	3,461	-	RFQ	Datasheet	-	16-DIP (0.300", 7.62mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, 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	0°C ~ 70°C	Through Hole	-	-	16-PDIP
DS1685Q-5/T&R IC RTC CLK/CALENDAR PAR 28PLCC Analog Devices Inc./Maxim Integrated	3,533	-	RFQ	Datasheet	-	28-LCC (J-Lead)	Tape & Reel (TR)	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	Surface Mount	-	-	28-PLCC (11.51x11.51)
DS1302S/T&R IC RTC CLK/CALENDAR SER 8SOIC Analog Devices Inc./Maxim Integrated	2,286	-	RFQ	Datasheet	-	8-SOIC (0.209", 5.30mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Trickle-Charger	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2V ~ 5.5V	2V ~ 5.5V	0.3µA ~ 1µA @ 2V ~ 5V	0°C ~ 70°C	Surface Mount	-	-	8-SOIC
DS1302Z/T&R IC RTC CLK/CALENDAR SER 8SOIC Analog Devices Inc./Maxim Integrated	3,830	-	RFQ	Datasheet	-	8-SOIC (0.154", 3.90mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Trickle-Charger	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2V ~ 5.5V	2V ~ 5.5V	0.3µA ~ 1µA @ 2V ~ 5V	0°C ~ 70°C	Surface Mount	-	-	8-SOIC
DS1302SN/T&R IC RTC CLK/CALENDAR SER 8SOIC Analog Devices Inc./Maxim Integrated	3,293	-	RFQ	Datasheet	-	8-SOIC (0.209", 5.30mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Trickle-Charger	31B	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	2V ~ 5.5V	2V ~ 5.5V	0.3µA ~ 1µA @ 2V ~ 5V	-40°C ~ 85°C	Surface Mount	-	-	8-SOIC
DS14285S/T&R IC RTC CLK/CALENDAR PAR 24SOIC Analog Devices Inc./Maxim Integrated	3,975	-	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 ~ 3.6V	0.5µA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	-	-	24-SOIC
DS14285SN/T&R IC RTC CLK/CALENDAR PAR 24SOIC Analog Devices Inc./Maxim Integrated	4,995	-	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 ~ 3.6V	0.5µA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	24-SOIC
DS1685E-3/T&R IC RTC CLK/CALENDAR PAR 24TSSOP Analog Devices Inc./Maxim Integrated	4,053	-	RFQ	Datasheet	-	24-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	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-TSSOP
DS1673E-5/T&R IC RTC SYST CTRLR SER 20TSSOP Analog Devices Inc./Maxim Integrated	4,280	-	RFQ	Datasheet	-	20-TSSOP (0.173", 4.40mm Width)	Tape & Reel (TR)	Obsolete	Not Verified	Portable System Controller	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	3-Wire Serial	4.5V ~ 5.5V	2.5V ~ 3.7V	300µA @ 5V	0°C ~ 70°C	Surface Mount	-	-	20-TSSOP
DS1501WS/T&R IC RTC CLK/CALENDAR PAR 28SOIC Analog Devices Inc./Maxim Integrated	4,240	-	RFQ	Datasheet	-	28-SOIC (0.295", 7.50mm 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-SOIC

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Real Time Clocks FAQ

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