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
DS1286I+ IC RTC CLK/CALENDAR PAR 28EDIP Analog Devices Inc./Maxim Integrated	3,547	-	RFQ	Datasheet	-	28-DIP Module (0.61", 15.49mm), 23 Leads	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Square Wave Output, SRAM, Watchdog Timer	50B	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.4V ~ 3.5V	7mA @ 5V	-40°C ~ 85°C	Through Hole	-	-	28-EDIP
DS1386P-32-120 IC RTC CLK/CALENDAR PAR 34PCM Analog Devices Inc./Maxim Integrated	4,871	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer	32KB	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	3V	4mA @ 5V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module
DS1386P-32-120+ IC RTC CLK/CALENDAR PAR 34PCM Analog Devices Inc./Maxim Integrated	4,714	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer	32KB	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	3V	4mA @ 5V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module
M48T37V-10MH6F IC RTC CLK/CALENDAR PAR 44SOH STMicroelectronics	3,960	-	RFQ	Datasheet	Timekeeper®	44-BSOP (0.337", 8.56mm Width) requires SNAPHAT	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	3V ~ 3.6V	-	2mA @ 3V ~ 3.6V	-40°C ~ 85°C	Surface Mount	-	-	44-SOH
M48T37Y-70MH6F IC RTC CLK/CALENDAR PAR 44SOH STMicroelectronics	4,655	-	RFQ	Datasheet	Timekeeper®	44-BSOP (0.337", 8.56mm Width) requires SNAPHAT	Tape & Reel (TR)	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, Watchdog Timer	-	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 4.5V ~ 5.5V	-40°C ~ 85°C	Surface Mount	-	-	44-SOH
DS1646P-120 IC RTC CLK/CALENDAR PAR 34PCM Analog Devices Inc./Maxim Integrated	2,398	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM	128KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	3V	4mA @ 4.5 V ~ 5.5 V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module
DS1746P-70 IC RTC CLK/CALENDAR PAR 34PCM Analog Devices Inc./Maxim Integrated	1,026	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Y2K	128KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	3V	4mA @ 5V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module
DS1744WP-120 IC RTC CLK/CALENDAR PAR 34PCM Analog Devices Inc./Maxim Integrated	4,935	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Y2K	32KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	2.97V ~ 3.63V	3V	2mA @ 3.3V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module
DS1244WP-120 IC RTC PHANTOM CHIP PAR 34PCM Analog Devices Inc./Maxim Integrated	4,596	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tube	Obsolete	Not Verified	Phantom Time Chip	Leap Year, NVSRAM	32KB	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	2.97V ~ 3.63V	3V	7mA @ 3.3V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module
DS1244YP-70 IC RTC PHANTOM CHIP PAR 34PCM Analog Devices Inc./Maxim Integrated	3,177	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tube	Obsolete	Not Verified	Phantom Time Chip	Leap Year, NVSRAM	32KB	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	3V	10mA @ 5V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module
DS1744-70IND IC RTC CLK/CALENDAR PAR 28EDIP Analog Devices Inc./Maxim Integrated	1,099	-	RFQ	Datasheet	-	28-DIP Module (0.600", 15.24mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Y2K	32KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	4mA @ 5V	-40°C ~ 85°C	Through Hole	-	-	28-EDIP
DP8570AVX/NOPB IC RTC TIMER PERIPH PAR 28PLCC Texas Instruments	2,962	-	RFQ	Datasheet	-	28-LCC (J-Lead)	Tape & Reel (TR)	Active	Not Verified	Timer Clock Peripheral (TCP)	Alarm, Leap Year	44B	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)
DS1554-70 IC RTC CLK/CALENDAR PAR 32EDIP Analog Devices Inc./Maxim Integrated	2,516	-	RFQ	Datasheet	-	32-DIP Module (0.600", 15.24mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K	32KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	6mA @ 5V	0°C ~ 70°C	Through Hole	-	-	32-EDIP
DS1554W-120 IC RTC CLK/CALENDAR PAR 32EDIP Analog Devices Inc./Maxim Integrated	2,695	-	RFQ	Datasheet	-	32-DIP Module (0.600", 15.24mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K	32KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	2.97V ~ 3.63V	-	4mA @ 3.3V	0°C ~ 70°C	Through Hole	-	-	32-EDIP
DS1486P-120 IC RTC CLK/CALENDAR PAR 34PCM Analog Devices Inc./Maxim Integrated	4,927	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer	128KB	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	3.3V	4mA @ 5V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module
DS1486P-120+ IC RTC CLK/CALENDAR PAR 34PCM Analog Devices Inc./Maxim Integrated	3,548	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer	128KB	HH:MM:SS:hh (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	3.3V	4mA @ 5V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module
DS17885S-5/T&R+ IC RTC CLK/CALENDAR PAR 24SOIC Analog Devices Inc./Maxim Integrated	1,962	-	RFQ	Datasheet	-	24-SOIC (0.295", 7.50mm Width)	Tape & Reel (TR)	Active	Not Verified	Clock/Calendar	Alarm, Daylight Savings, Leap Year, NVSRAM, Square Wave Output	8KB	HH:MM:SS (12/24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	2.5V ~ 3.7V	3mA @ 4.5V ~ 5.5V	0°C ~ 70°C	Surface Mount	-	-	24-SOIC
DS1743-100 IND IC RTC CLK/CALENDAR PAR 28EDIP Analog Devices Inc./Maxim Integrated	2,166	-	RFQ	Datasheet	-	28-DIP Module (0.600", 15.24mm)	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Y2K	8KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	-	3mA @ 5V	-40°C ~ 85°C	Through Hole	-	-	28-EDIP
DS1743P-70+ IC RTC CLK/CALENDAR PAR 34PCM Analog Devices Inc./Maxim Integrated	3,944	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tube	Obsolete	Not Verified	Clock/Calendar	Leap Year, NVSRAM, Y2K	8KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	4.5V ~ 5.5V	3V	3mA @ 5V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module
DS1556WP-120 IC RTC CLK/CALENDAR PAR 34PCM Analog Devices Inc./Maxim Integrated	4,223	-	RFQ	Datasheet	-	34-PowerCap™ Module	Tube	Obsolete	Not Verified	Clock/Calendar	Alarm, Leap Year, NVSRAM, Watchdog Timer, Y2K	128KB	HH:MM:SS (24 hr)	YY-MM-DD-dd	Parallel	2.97V ~ 3.63V	3V	4mA @ 3.3V	0°C ~ 70°C	Surface Mount	-	-	34-PowerCap Module

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Real Time Clocks FAQ

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Yes. Our sourcing team can review shortage and obsolete-part requirements and help check available supply channels or possible alternatives when appropriate.

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