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	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
BQ4845P-A4	Texas Instruments	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	4.75 V	70 Cel	0 Cel	MATTE TIN	DUAL	4.826 mm	15.24 mm		8	.032 MHz			37.084 mm	1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
BQ4845PN	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	5	IN-LINE	DIP28,.6	Y	4.75 V	85 Cel	-40 Cel		DUAL				8	.032 MHz				0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	YES
BQ4830YMA-85	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	70 Cel	0 Cel		DUAL				8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED		0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDMA-T28		Not Qualified	NO
BQ4845YP-A4	Texas Instruments	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		DUAL	4.826 mm	15.24 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	37.084 mm	1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO
BQ4852YMC-85	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	36	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	5	MICROELECTRONIC ASSEMBLY	DIP36,.6	Y	4.5 V	70 Cel	0 Cel		DUAL				8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED		0	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDMA-T36		Not Qualified	NO
BQ4802MA	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28		RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS			MICROELECTRONIC ASSEMBLY				70 Cel	0 Cel		DUAL				8					0	CMOS		3.3 V			R-XDMA-T28		Not Qualified
BQ3287AMT-I	Texas Instruments	TIMER, REAL TIME CLOCK	OTHER	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, MUXED BUS	5.5 V	5	MICROELECTRONIC ASSEMBLY	DIP24,.6	Y	4.5 V	70 Cel	-20 Cel		DUAL				8		NOT SPECIFIED	NOT SPECIFIED		1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-T24		Not Qualified	NO
BQ3285P-SB2E3	Texas Instruments	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			31.75 mm	1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T24		Not Qualified	NO	e3
BQ4802P	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS			IN-LINE				70 Cel	0 Cel		DUAL				8					0	CMOS		3.3 V			R-PDIP-T28		Not Qualified
BQ4847Y-MT	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V	5	MICROELECTRONIC ASSEMBLY	DIP28,.6	Y	4.5 V	70 Cel	0 Cel		DUAL				8		NOT SPECIFIED	NOT SPECIFIED		0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-T28		Not Qualified	NO
BQ3287EMT	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, MUXED BUS	5.5 V	5	MICROELECTRONIC ASSEMBLY	DIP24,.6	Y	4.5 V	70 Cel	0 Cel		DUAL				8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED		1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-T24		Not Qualified	NO
BQ3287MT-I	Texas Instruments	TIMER, REAL TIME CLOCK	OTHER	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, MUXED BUS	5.5 V	5	MICROELECTRONIC ASSEMBLY	DIP24,.6	Y	4.5 V	70 Cel	-20 Cel		DUAL				8		NOT SPECIFIED	NOT SPECIFIED		1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-T24		Not Qualified	NO
BQ4847-MT	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.25 V	5	MICROELECTRONIC ASSEMBLY	DIP28,.6	Y	4.75 V	70 Cel	0 Cel		DUAL				8		NOT SPECIFIED	NOT SPECIFIED		0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-T28		Not Qualified	NO
BQ3287A-I	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V		IN-LINE			4.5 V	70 Cel	-20 Cel		DUAL				8					1	CMOS		5 V			R-PDIP-T24		Not Qualified
BQ3287AMT	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, MUXED BUS	5.5 V	5	MICROELECTRONIC ASSEMBLY	DIP24,.6	Y	4.5 V	70 Cel	0 Cel		DUAL				8		NOT SPECIFIED	NOT SPECIFIED		1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-T24		Not Qualified	NO
BQ4822YMA-70	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	5	MICROELECTRONIC ASSEMBLY	DIP28,.6	Y	4.5 V	70 Cel	0 Cel		DUAL				8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED		0	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDMA-T28		Not Qualified	NO
DS1497	Analog Devices		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL		5	IN-LINE	DIP28,.6	Y		70 Cel	0 Cel	TIN LEAD	DUAL										CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1315-3V	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL	3.3 V	3	IN-LINE	DIP16,.3	N	2.7 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.72 mm	7.62 mm							0	CMOS	1/100 SECOND	3 V	Timer or RTC	2.54 mm	R-PDIP-T16		Not Qualified	YES	e0
DS1315N-3V	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL		3	IN-LINE	DIP16,.3	N		85 Cel	-45 Cel	TIN LEAD	DUAL	5.72 mm	7.62 mm							0	CMOS	1/100 SECOND	3 V	Timer or RTC	2.54 mm	R-PDIP-T16		Not Qualified	YES	e0
DS16440120+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		IN-LINE			4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	9.27 mm	15.24 mm		8	.032 MHz			37.595 mm		CMOS		5 V		2.54 mm	R-XDIP-T28		Not Qualified		e3
DS1647-15	Analog Devices	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
DS17887-5+	Analog Devices	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 (Sn) - annealed	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	e3
DS1386-8-15	Analog Devices		COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL		5	IN-LINE	DIP32,.6	Y		70 Cel	0 Cel	TIN LEAD	DUAL										CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e0
DS1315-33+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL	3.6 V	3.3	IN-LINE	DIP16,.3	N	3 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	4.572 mm	7.62 mm		0	.032 MHz	30	260	19.175 mm	0	CMOS	1/100 SECOND	3.3 V	Timer or RTC	2.54 mm	R-PDIP-T16	1	Not Qualified	YES	e3
DS1216B-3.3V	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28		RECTANGULAR	UNSPECIFIED	NO	SERIAL, FIXED PROTOCOL	3.6 V		MICROELECTRONIC ASSEMBLY			3 V	70 Cel	0 Cel	TIN LEAD	DUAL									0	CMOS		3.3 V			R-XDMA-T28		Not Qualified		e0
DS1315N-5+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL	5.5 V	5	IN-LINE	DIP16,.3	N	4.5 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	4.572 mm	7.62 mm		0	.032 MHz	30	260	19.175 mm	0	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T16	1	Not Qualified	YES	e3
DS1251P-70-IND	Analog Devices	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	14.285 MHz					CMOS		5 V			R-XDMA-T32		Not Qualified		e0
DS1687-5+	Analog Devices	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 (Sn) - annealed	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	YES	e3
DS1248-70	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32		RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL				8	14.285 MHz					CMOS		5 V			R-XDMA-T32		Not Qualified		e0
DS1553W-150+	Analog Devices		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL		3.3	IN-LINE	DIP28,.6	Y		70 Cel	0 Cel		DUAL						30	260			CMOS	SECONDS	3.3 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO
DS1642-12	Analog Devices	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	5.72 mm	7.62 mm	ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 10 YEARS DATA RETENTION	8					0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T24		Not Qualified	NO	e0
DS1593	Analog Devices		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL		5	IN-LINE	DIP28,.6	Y		70 Cel	0 Cel	TIN LEAD	DUAL										CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1251P-100-IND	Analog Devices	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	10 MHz					CMOS		5 V			R-XDMA-T32		Not Qualified		e0
DS1747W	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32		RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.63 V	3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	2.97 V	70 Cel	0 Cel	TIN LEAD	DUAL				8	.032 MHz				0	CMOS	SECONDS	3.3 V	Timer or RTC		R-XDMA-T32		Not Qualified	NO	e0
DS1747-150	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32		RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.63 V		MICROELECTRONIC ASSEMBLY			2.97 V	70 Cel	0 Cel	TIN LEAD	DUAL				8					0	CMOS		3.3 V			R-XDMA-T32		Not Qualified		e0
DS1744-70+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	5	IN-LINE	DIP32,.6	N	4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	10.668 mm	15.24 mm		8	.032 MHz			38.227 mm	0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
DS1643-12	Analog Devices		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL		5	IN-LINE	DIP28,.6	N		70 Cel	0 Cel	TIN LEAD	DUAL										CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS17887N-5	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V	5	IN-LINE	DIP24,.6	N	4.5 V	85 Cel	-40 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		Not Qualified	NO	e0
DS1747W-120+	Analog Devices	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	N	2.97 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	10.922 mm	15.24 mm		8	.032 MHz			43.053 mm	0	CMOS	SECONDS	3.3 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e3
DS1216-IND	Analog Devices		INDUSTRIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL		5	IN-LINE	DIP28,.6	N		85 Cel	-40 Cel	TIN LEAD	DUAL										CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1554-70IND+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	5	IN-LINE	DIP32,.6	Y	4.5 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	10.922 mm	15.24 mm		8	.032 MHz			43.053 mm		CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e3
DS1644-15	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	5	IN-LINE	DIP28,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.72 mm	15.24 mm	ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 10 YEARS DATA RETENTION	8					0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS17287-3+	Analog Devices	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 (Sn) - annealed	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	YES	e3
DS1643-15	Analog Devices		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL		5	IN-LINE	DIP28,.6	N		70 Cel	0 Cel	TIN LEAD	DUAL										CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1642-15	Analog Devices	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	5.72 mm	7.62 mm	ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 10 YEARS DATA RETENTION	8					0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T24		Not Qualified	NO	e0
DS17887-3+	Analog Devices	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 (Sn) - annealed	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	e3
DS17887-5IND+	Analog Devices	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	Matte Tin (Sn) - annealed	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	e3
DS12885N+	Analog Devices	TIMER, PROGRAMMABLE	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	Matte Tin (Sn) - annealed	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	NO	e3

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.