THROUGH-HOLE Timers & Real-Time Clocks 573

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Part	Manufacturer	Peripheral IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Package Body Material	Surface Mount	Information Access Method	Maximum Supply Voltage	No. of Bits	Power Supplies (V)	Package Style (Meter)	Package Equivalence Code	Interrupt Capability	Minimum Supply Voltage	Maximum Operating Temperature	Minimum Operating Temperature	Terminal Finish	Terminal Position	Maximum Seated Height	Width	Additional Features	External Data Bus Width	Maximum Clock Frequency	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length	No. of Timers	Technology	Minimum Time	Nominal Supply Voltage	Sub-Category	Terminal Pitch	JESD-30 Code	Moisture Sensitivity Level (MSL)	Qualification	Volatile	JESD-609 Code
DS1248Y-120	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP32,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e0
DS1287	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP24,.6	Y		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T24		Not Qualified	NO	e0
DS1501W+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.6 V		3.3	IN-LINE	DIP28,.6	Y	3 V	70 Cel	0 Cel	MATTE TIN	DUAL	5.08 mm	15.24 mm		8	.032 MHz	30	260	36.83 mm	1	CMOS	SECONDS	3.3 V	Timers or RTCs	2.54 mm	R-PDIP-T28	1	Not Qualified	YES	e3
DS1395	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP28,.6	Y		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	YES	e0
DS1216F-3	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL	3.3 V			IN-LINE	DIP32,.6	N	2.7 V	70 Cel	0 Cel	TIN LEAD	DUAL	11.94 mm	15.24 mm						40.635 mm	0	CMOS	1/100 SECOND	3 V	Timer or RTC	2.54 mm	R-PDIP-T32	1	Not Qualified	NO	e0
DS1511W-IND	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.6 V			IN-LINE			3 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.398 mm	15.24 mm		8	.032 MHz			38.862 mm	1	CMOS		3.3 V		2.54 mm	R-PDIP-T28		Not Qualified		e0
DS17885-5+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V		5	IN-LINE	DIP24,.6	Y	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	5.08 mm	15.24 mm		8	.032 MHz	30	260	31.75 mm	1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T24	1	Not Qualified	YES	e3
DS1386-08-12	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			IN-LINE			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL			ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P; 10 YEARS DATA RETENTION	8					0	CMOS		5 V			R-PDIP-T32		Not Qualified		e0
DS1251Y-70-IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.6 V		5	MICROELECTRONIC ASSEMBLY	DIP32,.6	N	3 V	85 Cel	-40 Cel	TIN LEAD	DUAL			ALSO OPERATES AT 5V SUPPLY	8					0	CMOS	1/100 SECOND	3.3 V	Timer or RTC	2.54 mm	R-XDMA-T32		Not Qualified	NO	e0
DS1643-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP28,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1744-70IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		5	MICROELECTRONIC ASSEMBLY	DIP32,.6	N	4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	10.42 mm	15.24 mm		8	.032 MHz			38.865 mm	0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-T28		Not Qualified	NO	e0
DS1285	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP24,.6	Y		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T24		Not Qualified	YES	e0
DS1687-3IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	3.7 V		3	IN-LINE	DIP24,.6	Y	2.7 V	85 Cel	-40 Cel	TIN LEAD	DUAL	9.398 mm	15.24 mm		8	.032 MHz			33.782 mm	1	CMOS	SECONDS	3 V	Timer or RTC	2.54 mm	R-PDIP-T24	1	Not Qualified	YES	e0
DS1678	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	5.5 V		5	IN-LINE	DIP8,.3	Y	4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	4.572 mm	7.62 mm			.032 MHz			9.375 mm	0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T8	1	Not Qualified	NO	e0
DS1642-120	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP24,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T24		Not Qualified	NO	e0
DS1244Y-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP28,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1646-12	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			IN-LINE			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL			ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 10 YEARS DATA RETENTION	8					0	CMOS		5 V			R-PDIP-T32		Not Qualified		e0
DS17487-5IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V		5	IN-LINE	DIP24,.6	Y	4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	9.398 mm	15.24 mm		8	.032 MHz			33.782 mm	1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T24		Not Qualified	NO	e0
DS1644-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP28,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1215	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL			5	IN-LINE	DIP16,.3	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T16		Not Qualified	YES	e0
DS12CR887-5	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V		5	IN-LINE	DIP24,.6	Y	4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	9.398 mm	15.24 mm		8	.032 MHz			33.782 mm	1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T24	1	Not Qualified	NO	e0
DS17887-5IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V		5	IN-LINE	DIP24,.6	Y	4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	9.398 mm	15.24 mm		8	.032 MHz			33.782 mm	1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T24		Not Qualified	NO	e0
DS1251W-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			3.3	IN-LINE	DIP32,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	1/100 SECOND	3.3 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e0
DS17885-3	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	3.7 V		3	IN-LINE	DIP24,.6	Y	2.7 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.08 mm	15.24 mm		8	.032 MHz			31.75 mm	1	CMOS	SECONDS	3 V	Timer or RTC	2.54 mm	R-PDIP-T24	1	Not Qualified	YES	e0
DS1510W	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	IN-LINE	DIP32,.6	Y	2.97 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.52 mm	15.24 mm		8	.032 MHz			42.925 mm		CMOS	SECONDS	3.3 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e0
DS1744-100	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP28,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL											SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1216C	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	SERIAL, FIXED PROTOCOL	5.5 V		5	IN-LINE	DIP28,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	11.94 mm	15.24 mm	10 YEARS DATA RETENTION; SERIAL 64-BIT PROTOCOL; ACCURACY 1 MIN/MONTH @ 25 DEGREE C			20	240	35.69 mm	0	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-XDIP-T28	1	Not Qualified	NO	e0
DS1248W-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			3.3	IN-LINE	DIP32,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	1/100 SECOND	3.3 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e0
DS1685-3+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	3.7 V		3	IN-LINE	DIP24,.6	Y	2.7 V	70 Cel	0 Cel	MATTE TIN	DUAL	5.08 mm	15.24 mm		8	.032 MHz	30	260	31.75 mm	1	CMOS	SECONDS	3 V	Timer or RTC	2.54 mm	R-PDIP-T24	1	Not Qualified	YES	e3
DS1248Y-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP32,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e0
DS1284+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V		5	IN-LINE	DIP28,.6	Y	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	5.08 mm	15.24 mm	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8	.032 MHz	30	260	36.83 mm	1	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T28	1	Not Qualified	YES	e3
DS1742-85	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V		5	IN-LINE	DIP24,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.08 mm	15.24 mm		8				31.75 mm	0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T24		Not Qualified	NO	e0
DS17487-3IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	3.7 V		3	IN-LINE	DIP24,.6	Y	2.7 V	85 Cel	-40 Cel	TIN LEAD	DUAL	9.398 mm	15.24 mm		8	.032 MHz			33.782 mm	1	CMOS	SECONDS	3 V	Timer or RTC	2.54 mm	R-PDIP-T24		Not Qualified	NO	e0
DS1500W	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	IN-LINE	DIP32,.6	Y	2.97 V	70 Cel	0 Cel	TIN LEAD	DUAL				8	.032 MHz					CMOS	SECONDS	3.3 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e0
DS1556W-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			3.3	IN-LINE	DIP32,.6	Y		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL											SECONDS	3.3 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e0
DS1216D	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	UNSPECIFIED	NO	SERIAL, FIXED PROTOCOL	5.5 V			IN-LINE	DIP32,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	11.94 mm	15.24 mm	10 YEARS DATA RETENTION; SERIAL 64-BIT PROTOCOL; ACCURACY 1 MIN/MONTH @ 25 DEGREE C					40.635 mm	0	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-XDIP-T32		Not Qualified	NO	e0
DS1689	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V	16	3/5	IN-LINE	DIP28,.6	Y	2.7 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.08 mm	15.24 mm	AUXILIARY BATTERY I/P; POWER ON INTRPT WITH KICK START; RAM CLEAR I/P; 64-BIT SILICON SERIAL NUMBER	8				36.83 mm	1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	YES	e0
DS1585	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP28,.6	Y		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	YES	e0
DS1248Y-200	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP32,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e0
DS1315N-5V	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL			5	IN-LINE	DIP16,.3	N		85 Cel	-45 Cel	TIN LEAD	DUAL	5.72 mm	7.62 mm							0	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T16		Not Qualified	YES	e0
DS1244W-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP28,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1251Y-100-IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	32		RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			MICROELECTRONIC ASSEMBLY			4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL				8					0	CMOS		5 V			R-XDMA-T32		Not Qualified		e0
DS1510Y	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V		5	IN-LINE	DIP32,.6	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.52 mm	15.24 mm		8	.032 MHz			42.925 mm		CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e0
DS17285-5	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V		5	IN-LINE	DIP24,.6	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.08 mm	15.24 mm		8	.032 MHz			31.75 mm	1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T24	1	Not Qualified	YES	e0
DS17487N-3	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	3.3 V		3	IN-LINE	DIP24,.6	Y	2.7 V	85 Cel	-40 Cel	TIN LEAD	DUAL	5.08 mm	15.24 mm		8	.032 MHz			31.75 mm	1	CMOS	SECONDS	3 V	Timer or RTC	2.54 mm	R-PDIP-T24		Not Qualified	NO	e0
DS1672-33+	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	3.63 V		3.3	IN-LINE	DIP8,.3	N	2.97 V	85 Cel	-40 Cel	MATTE TIN	DUAL	4.572 mm	7.62 mm			.032 MHz	30	260	9.375 mm	0	CMOS	SECONDS	3.3 V	Timers or RTCs	2.54 mm	R-PDIP-T8	1	Not Qualified	NO	e3
DS1251W-150-IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	32		RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.3 V			MICROELECTRONIC ASSEMBLY			2.7 V	85 Cel	-40 Cel	TIN LEAD	DUAL				8					0	CMOS		3 V			R-XDMA-T32		Not Qualified		e0
DS1672-3	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	3.3 V		3	IN-LINE	DIP8,.3	N	2.7 V	85 Cel	-40 Cel	TIN LEAD	DUAL	4.572 mm	7.62 mm			.032 MHz			9.375 mm	0	CMOS	SECONDS	3 V	Timer or RTC	2.54 mm	R-PDIP-T8		Not Qualified	NO	e0

Timers & Real-Time Clocks

Timers and real-time clocks (RTCs) are electronic devices that are used to measure and track time intervals in electronic systems. They are crucial components in many applications, such as control systems, automation systems, and consumer electronics.

A timer is an electronic device that is used to measure the duration of time intervals. Timers can be either digital or analog and can be used to measure time intervals ranging from microseconds to hours or even days. They can be used for a variety of applications, such as controlling the duration of a signal or triggering an event after a specified time interval.

A real-time clock (RTC) is a clock that keeps track of the current time and date. Unlike a timer, an RTC is capable of keeping track of time even when the system is powered off. RTCs are commonly used in consumer electronics such as watches, clocks, and digital cameras, as well as in control systems, data loggers, and other applications that require accurate timekeeping.