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	On Chip Data RAM Width	No. of Bits	Maximum Output Clock Frequency	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	RAM Words	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	Maximum Supply Current	Minimum Time	Nominal Supply Voltage	Sub-Category	Bus Compatibility	Terminal Pitch	JESD-30 Code	Moisture Sensitivity Level (MSL)	Qualification	Volatile	JESD-609 Code
DS12CR887-5+	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	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
DS1386-08-150	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
DS1386-32-12	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													1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-PDIP-T32		Not Qualified	NO	e0
DS1685N-3	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	3.7 V				3	IN-LINE	DIP24,.6		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	YES	e0
DS1215N	Analog Devices		INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL					5	IN-LINE	DIP16,.3	N		85 Cel	-40 Cel	TIN LEAD	DUAL											CMOS		1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-PDIP-T16		Not Qualified	YES	e0
DS1687-5IND+	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	YES	e3
DS12483W--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						CMOS			3.3 V				R-XDMA-T32		Not Qualified		e0
DS1687-3IND+	Analog Devices	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	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
DS1747-70+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	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	10.922 mm		15.24 mm		8	.032 MHz			43.053 mm	0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T32		Not Qualified	NO	e3
DS1554W-120IND+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V				3.3	IN-LINE	DIP32,.6	Y	2.97 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	10.922 mm		15.24 mm		8	.032 MHz			43.053 mm		CMOS		SECONDS	3.3 V	Timer or RTC		2.54 mm	R-PDIP-T32		Not Qualified	NO	e3
DS1687-32	Analog Devices	TIMER, REAL TIME CLOCK		THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS						IN-LINE						TIN LEAD	DUAL	5.72 mm		15.24 mm	ALSO OPERATES AT 5V SUPPLY	8					1	CMOS			3 V			2.54 mm	R-PDIP-T28		Not Qualified		e0
DS17487-5IND+	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	1	Not Qualified	NO	e3
DS1744W-120+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	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	10.668 mm		15.24 mm		8	.032 MHz			38.227 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
DS17487-3IND+	Analog Devices	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	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
DS1248-100	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	10 MHz					CMOS			5 V				R-XDMA-T32		Not Qualified		e0
DS1744-70IND+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	IN-LINE	DIP32,.6	N	4.5 V	85 Cel	-40 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
DS12885+	Analog Devices	TIMER, PROGRAMMABLE	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	5.08 mm		15.24 mm	DAYLIGHT SAVINGS OPTION; SELECTABLE MOTOROLA/INTEL TIMING	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
DS16440-120	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	TIN LEAD	DUAL	9.27 mm		15.24 mm		8	.032 MHz			37.595 mm		CMOS			5 V			2.54 mm	R-XDIP-T28		Not Qualified		e0
DS1746W-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		CMOS		SECONDS	3.3 V	Timers or RTCs		2.54 mm	R-PDIP-T32	1	Not Qualified	NO	e3
DS1747	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	MICROELECTRONIC ASSEMBLY	DIP32,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL					8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-T32		Not Qualified	NO	e0
DS1742-200	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V					IN-LINE			2.97 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.72 mm		7.62 mm		8					0	CMOS			3.3 V			2.54 mm	R-PDIP-T24		Not Qualified		e0
DS1747-120	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
DS17487-3+	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
DS1386-8-12	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
DS1747W-120IND+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V				3.3	IN-LINE	DIP32,.6	N	2.97 V	85 Cel	-40 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
DS17887-3IND+	Analog Devices	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	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
DS1243Y-170	Analog Devices		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL						IN-LINE	DIP28,.6	N		70 Cel	0 Cel	TIN LEAD	DUAL											CMOS		1/100 SECOND		Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1306+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, 3-WIRE	5.5 V				3/5	IN-LINE	DIP16,.3	Y	2 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		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T16	1	Not Qualified	YES	e3
DS1678+	Analog Devices	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	Matte Tin (Sn) - annealed	DUAL	4.572 mm		7.62 mm			.032 MHz	30	260	9.375 mm	0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T8	1	Not Qualified	NO	e3
DS17887N-3	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	3.3 V				3	IN-LINE	DIP24,.6	N	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
DS1746W-120IND+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V				3.3	IN-LINE	DIP32,.6	N	2.97 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	10.922 mm		15.24 mm		8	.032 MHz			43.053 mm		CMOS		SECONDS	3.3 V	Timers or RTCs		2.54 mm	R-PDIP-T32		Not Qualified	NO	e3
DS1501YN+	Analog Devices	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	4.5 V	85 Cel	-40 Cel	MATTE TIN	DUAL	5.08 mm		15.24 mm		8	.032 MHz	30	260	36.83 mm	1	CMOS		SECONDS	5 V	Timers or RTCs		2.54 mm	R-PDIP-T28	1	Not Qualified	YES	e3
MCCS146818BP	Onsemi	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS/MUXED BUS	5.25 V					IN-LINE			4.75 V	70 Cel	0 Cel		DUAL	5.08 mm		15.24 mm		8	.032 MHz			31.75 mm	1	CMOS			5 V			2.54 mm	R-PDIP-T24
MC14536BCP	Onsemi	TIMER, PROGRAMMABLE	MILITARY	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO							IN-LINE						TIN LEAD	DUAL	4.44 mm		7.62 mm					235	19.175 mm		CMOS						2.54 mm	R-PDIP-T16		Not Qualified		e0
Z8430AB1	STMicroelectronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.25 V		8			IN-LINE			4.75 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.08 mm		15.24 mm	DAISY CHAIN INTERRUPT STRUCTURE; PRESCALED /16, /256 TIMER I/P'S	8	4 MHz			37.085 mm	4	NMOS	100 mA		5 V		Z80	2.54 mm	R-PDIP-T28		Not Qualified		e0
HCC4536BF	STMicroelectronics	TIMER, PROGRAMMABLE	MILITARY	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO							IN-LINE				125 Cel	-55 Cel	TIN LEAD	DUAL	5.08 mm		7.62 mm			2.5 MHz				1	CMOS			5 V			2.54 mm	R-GDIP-T16		Not Qualified		e0
Z84C30BD2	STMicroelectronics	TIMER, PROGRAMMABLE		THROUGH-HOLE	28	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		8			IN-LINE			4.5 V	125 Cel	-55 Cel	TIN LEAD	DUAL				DAISY CHAIN INTERRUPT STRUCTURE; PRESCALED /16, /256 TIMER I/P'S	8	6 MHz				4	CMOS	7 mA		5 V		Z80C		R-CDIP-T28		Not Qualified		e0
MK48T02B25	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8			5	MICROELECTRONIC ASSEMBLY	DIP24,.6	N	4.75 V	70 Cel	0 Cel	TIN LEAD	DUAL		2040		WRITE PROTECT VOLTAGE = 4.5V; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 11 YEARS DATA RETENTION @ 70 DEG C	8					0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-T24		Not Qualified	NO	e0
MK48T08B10	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8				MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.75 V	70 Cel	0 Cel	TIN LEAD	DUAL		8184		10 YEARS DATA RETENTION; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; SOFTWARE CLOCK CALIBRATION	8					0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-T28		Not Qualified	NO	e0
Z8430BD1	STMicroelectronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	PARALLEL, DIRECT ADDRESS	5.25 V		8			IN-LINE			4.75 V	70 Cel	0 Cel	TIN LEAD	DUAL				DAISY CHAIN INTERRUPT STRUCTURE; PRESCALED /16, /256 TIMER I/P'S	8	6 MHz				4	NMOS	100 mA		5 V		Z80		R-CDIP-T28		Not Qualified		e0
MK48T12B20	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8			5	MICROELECTRONIC ASSEMBLY	DIP24,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL		2040		WRITE PROTECT VOLTAGE = 4.2V; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 11 YEARS DATA RETENTION @ 70 DEG C	8					0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-T24		Not Qualified	NO	e0
Z8430B1	STMicroelectronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.25 V		8			IN-LINE			4.75 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.08 mm		15.24 mm	DAISY CHAIN INTERRUPT STRUCTURE; PRESCALED /16, /256 TIMER I/P'S	8	2.5 MHz			37.085 mm	4	NMOS	100 mA		5 V		Z80	2.54 mm	R-PDIP-T28		Not Qualified		e0
Z84C30AB6	STMicroelectronics	TIMER, PROGRAMMABLE		THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V		8			IN-LINE			4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	5.08 mm		15.24 mm	DAISY CHAIN INTERRUPT STRUCTURE; PRESCALED /16, /256 TIMER I/P'S	8	4 MHz			37.085 mm	4	CMOS	5 mA		5 V		Z80C	2.54 mm	R-PDIP-T28		Not Qualified		e0
MK48T87B	STMicroelectronics		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
MK48T87B24	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, MUXED BUS	5.5 V	8		.008192 MHz	5	MICROELECTRONIC ASSEMBLY	DIP24,.6	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL		50		SELECTABLE INTEL/MOTOROLA TIMING; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 10 YEARS DATA RETENTION	8					1	CMOS	15 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-T24		Not Qualified	NO	e0
MK48T08B15	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8				MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.75 V	70 Cel	0 Cel	TIN LEAD	DUAL		8184		10 YEARS DATA RETENTION; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; SOFTWARE CLOCK CALIBRATION	8					0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-T28		Not Qualified	NO	e0
Z8430AD2	STMicroelectronics	TIMER, PROGRAMMABLE	MILITARY	THROUGH-HOLE	28	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		8			IN-LINE			4.75 V	125 Cel	-55 Cel	TIN LEAD	DUAL				DAISY CHAIN INTERRUPT STRUCTURE; PRESCALED /16, /256 TIMER I/P'S	8	4 MHz				4	NMOS	100 mA		5 V		Z80		R-CDIP-T28		Not Qualified		e0
MK48T18B10	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8				MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL		8184		10 YEARS DATA RETENTION; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; SOFTWARE CLOCK CALIBRATION	8					0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-T28		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.