DIP Timers & Real-Time Clocks 677

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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	Screening Level	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	Total Dose (V)	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
DS1747-70IND+	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	N	4.5 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	5 V	Timer or RTC		2.54 mm	R-PDIP-T32		Not Qualified	NO	e3
MC14541BCP	Onsemi	TIMER, PROGRAMMABLE	MILITARY	THROUGH-HOLE	14	DIP	RECTANGULAR	PLASTIC/EPOXY	NO		18 V						IN-LINE			3 V	125 Cel	-55 Cel	Tin/Lead (Sn80Pb20)	DUAL	4.69 mm		7.62 mm			3 MHz	30	235	18.86 mm		1	CMOS			5 V			2.54 mm	R-PDIP-T14		Not Qualified		e0
MSM6242BRS	Lapis Semiconductor	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	18	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS/MUXED BUS	6 V					5	IN-LINE	DIP18,.3	N	4 V	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	5.08 mm		7.62 mm	TIMEKEEPING CURRENT = 10UA; MIN PROGRAMMABLE DELAY = 0.01562S; 30 SEC ADJUSTMENT	4	.032 MHz			22.6 mm		0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T18		Not Qualified	YES	e0
P8254-2	Rochester Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16			IN-LINE			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL				6 PROGRAMMABLE MODES	8						3	NMOS			5 V				R-PDIP-T24		Not Qualified		e0
PCF8563P	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	5.5 V					2/5	IN-LINE	DIP8,.3	Y	1.8 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	4.2 mm		7.62 mm			.032 MHz			9.5 mm		1	CMOS		SECONDS	2 V	Timer or RTC		2.54 mm	R-PDIP-T8		Not Qualified	YES	e4
DS1305N	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, 3-WIRE	5.5 V					3/5	IN-LINE	DIP16,.3	Y	2 V	85 Cel	-40 Cel	TIN LEAD	DUAL	4.572 mm		7.62 mm		0	.032 MHz			19.175 mm		0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T16	1	Not Qualified	YES	e0
DS1305N+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, 3-WIRE	5.5 V					3/5	IN-LINE	DIP16,.3	Y	2 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		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T16	1	Not Qualified	YES	e3
MM58274CN-12	National Semiconductor	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V					5	IN-LINE	DIP16,.3	N	4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	5.08 mm		7.62 mm	PRESCALED XTAL OSCILLATOR OUTPUT FOR RTC	4				21.755 mm		0	CMOS	1 mA	1/10 SECOND	5 V	Timer or RTC		2.54 mm	R-PDIP-T16		Not Qualified	YES	e0
DS1244Y-70-IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.6 V					5	MICROELECTRONIC ASSEMBLY	DIP28,.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-T28		Not Qualified	NO	e0
M41T00CAPPC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	5.5 V					3/5	IN-LINE	DIP24,.6	N	2.7 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm		15.24 mm						34.545 mm			CMOS		SECONDS		Timer or RTC		2.54 mm	R-PDIP-T24	1	Not Qualified	NO	e3
DS1286+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V					5	MICROELECTRONIC ASSEMBLY	DIP28,.6	Y	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	10.28 mm		15.24 mm	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8	.032 MHz			38.865 mm		1	CMOS		1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-XDMA-P28		Not Qualified	NO	e3
DS1286	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V					5	MICROELECTRONIC ASSEMBLY	DIP28,.6	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	10.28 mm		15.24 mm	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8	.032 MHz			38.865 mm		1	CMOS		1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-XDMA-P28		Not Qualified	NO	e0
M48T59Y-70PC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8				5	IN-LINE	DIP28,.6	Y	4.5 V	70 Cel	0 Cel		DUAL	9.65 mm	8176	15.24 mm		8	.032 MHz	NOT SPECIFIED	245	39.625 mm		0	CMOS	50 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1642-150	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
DS1693	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS/MUXED BUS	4 V			16		3/5	IN-LINE	DIP28,.6	Y	2.7 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.398 mm		15.24 mm	CAN ALSO OPERATE WITH 5V SUPPLY	8	.032 MHz			38.862 mm		1	CMOS		SECONDS	3 V	Timer or RTC		2.54 mm	R-PDIP-T28	1	Not Qualified	NO	e0
DS1693+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS/MUXED BUS	4 V			16			IN-LINE			2.7 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.398 mm		15.24 mm	CAN ALSO OPERATE WITH 5V SUPPLY	8	.032 MHz			38.862 mm		1	CMOS			3 V			2.54 mm	R-PDIP-T28		Not Qualified		e3
DS1746-70	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V					5	IN-LINE	DIP32,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.27 mm		15.24 mm		8	.032 MHz			38.675 mm		0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-XDIP-P32	1	Not Qualified	NO	e0
DS1746-70+	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			CMOS		SECONDS	5 V	Timers or RTCs		2.54 mm	R-PDIP-T32	1	Not Qualified	NO	e3
HS1-82C54RH-8	Renesas Electronics	TIMER, PROGRAMMABLE	MILITARY	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		MIL-PRF-38535 Class Q	16			IN-LINE			4.5 V	125 Cel	-55 Cel	GOLD	DUAL	5.72 mm		15.24 mm		8					100k Rad(Si)	3	CMOS			5 V			2.54 mm	R-CDIP-T24		Not Qualified		e4
MC68B40P	Motorola	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.25 V			16			IN-LINE	DIP28,.6	Y	4.75 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.08 mm		15.24 mm		8	2 MHz			36.83 mm		3				5 V		6800	2.54 mm	R-PDIP-T28		Not Qualified		e0
CDP68HC68T1E	Renesas Electronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, 3-WIRE	6 V	8			.002048 MHz	3.3/5	IN-LINE	DIP16,.3	Y	3 V	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL		32				2.1 MHz					1	CMOS	1.2 mA	SECONDS	5 V	Timer or RTC	CDP6805D2	2.54 mm	R-PDIP-T16		Not Qualified	YES	e0
D8254	Intel	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16			IN-LINE			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL				6 PROGRAMMABLE MODES	8						3	NMOS	170 mA		5 V				R-GDIP-T24		Not Qualified		e0
D8254-2	Rochester Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16			IN-LINE			4.5 V	70 Cel	0 Cel		DUAL				6 PROGRAMMABLE MODES	8		NOT SPECIFIED	NOT SPECIFIED			3	NMOS			5 V				R-GDIP-T24		Not Qualified
MC146818P	NXP Semiconductors	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V	8			.032768 MHz		IN-LINE			3 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.08 mm	50	15.24 mm		8	4.2 MHz			31.75 mm		1	CMOS	3 mA		5 V		8085; 8048; 8049; MC3870; MC6805; MC146805; S2000; 8021	2.54 mm	R-PDIP-T24		Not Qualified		e0
MD82C54	Renesas Electronics	TIMER, PROGRAMMABLE	MILITARY	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16			IN-LINE		N	4.5 V	125 Cel	-55 Cel		DUAL					8	8 MHz					3	CMOS	10 mA		5 V				R-CDIP-T24			NO
MD82C54/B	Renesas Electronics	TIMER, PROGRAMMABLE	MILITARY	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16			IN-LINE			4.5 V	125 Cel	-55 Cel	TIN LEAD	DUAL	5.72 mm		15.24 mm		8	8 MHz					3	CMOS			5 V			2.54 mm	R-CDIP-T24		Not Qualified		e0
MM58274CJ	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	PARALLEL, DIRECT ADDRESS	5.5 V						IN-LINE			4.5 V	85 Cel	-40 Cel		DUAL	5.08 mm		7.62 mm	LG-MAX	4				19.94 mm		0	CMOS			5 V			2.54 mm	R-GDIP-T16
TMP82C54P-2	Toshiba	TIMER, PROGRAMMABLE	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16			IN-LINE			4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	4.8 mm		15.24 mm	6 PROGRAMMABLE MODES	8				32 mm		3	CMOS	30 mA		5 V			2.54 mm	R-PDIP-T24		Not Qualified		e0
AM9513APC	Rochester Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.25 V			16			IN-LINE			4.75 V	70 Cel	0 Cel		DUAL	5.715 mm		15.24 mm		16		NOT SPECIFIED	NOT SPECIFIED	52.324 mm		5	MOS			5 V			2.54 mm	R-PDIP-T40
CP82C54	Renesas Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16			IN-LINE			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	6.35 mm		15.24 mm		8	8 MHz			31 mm		3	CMOS			5 V			2.54 mm	R-PDIP-T24		Not Qualified		e0
DS1511Y	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	TIN LEAD	DUAL	9.398 mm		15.24 mm		8	.032 MHz			38.862 mm		1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1511Y+	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	Y	4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	9.398 mm		15.24 mm		8	.032 MHz			38.862 mm		1	CMOS		SECONDS	5 V	Timers or RTCs		2.54 mm	R-PDIP-T28		Not Qualified	YES	e3
DS1554-70	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	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	9.27 mm		15.24 mm	IT CAN ALSO OPERATE WITH 5V	8	.032 MHz			38.675 mm		0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-P32	1	Not Qualified	NO	e0
DS1554-70+	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	Y	4.5 V	70 Cel	0 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
DS1556-70	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V					5	MICROELECTRONIC ASSEMBLY	DIP32,.6	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	10.922 mm		15.24 mm		8	.032 MHz			43.053 mm			CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDMA-P32		Not Qualified	NO	e0
DS1556-70+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V					5	MICROELECTRONIC ASSEMBLY	DIP32,.6	Y	4.5 V	70 Cel	0 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-PDMA-P32		Not Qualified	NO	e3
HD6340P	Hitachi	TIMER, PROGRAMMABLE	COMMERCIAL EXTENDED	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16			IN-LINE			4.5 V	75 Cel	-20 Cel	TIN LEAD	DUAL	5.7 mm		15.24 mm	PRESCALED /8 TIMER 3 I/P	8	1 MHz			35.6 mm		3	CMOS	5 mA		5 V		HMCS6800	2.54 mm	R-PDIP-T28		Not Qualified		e0
M48T18-100PC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8					IN-LINE	DIP28,.6	N	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm	8184	15.24 mm	10 YEARS DATA RETENTION; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; WRITE PROTECT VOLTAGE = 4.5V	8	.032 MHz			39.625 mm		0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
MK48T02B15	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
P8253-5	Rochester Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16			IN-LINE			4.5 V	70 Cel	0 Cel		DUAL				PROGRAMMABLE MODES	8		NOT SPECIFIED	NOT SPECIFIED			3	NMOS			5 V				R-PDIP-T24
P82C54	Rochester Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			16			IN-LINE			4.5 V	70 Cel	0 Cel		DUAL				6 PROGRAMMABLE MODES	8	8 MHz	NOT SPECIFIED	NOT SPECIFIED			3	CMOS	20 mA		5 V		10MHZ 8086/88; 10MHZ 80186/188		R-PDIP-T24
RTC-72421B	Seiko Epson	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	18	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS/MUXED BUS	5.5 V					5	IN-LINE	DIP18,.3	N	4.5 V	70 Cel	-10 Cel		DUAL	4.2 mm		7.62 mm		4	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	22.606 mm		0	CMOS	.01 mA	SECONDS	5 V	Timer or RTC	8048; 8051; 8085	2.54 mm	R-PDIP-T18		Not Qualified	YES
RTC72421B	Fox Electronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	18	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL	5.5 V					5	IN-LINE	DIP18,.3	N	4.5 V	70 Cel	-10 Cel	TIN LEAD	DUAL			7.62 mm						23.1 mm			CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T18		Not Qualified	YES	e0
DP8570AN	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL						3,5	IN-LINE	DIP28,.6	Y		85 Cel	-40 Cel		DUAL							NOT SPECIFIED	NOT SPECIFIED			2	CMOS		1/100 SECOND		Timers or RTCs		2.54 mm	R-PDIP-T28		Not Qualified	YES
BQ4285LP	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	3.6 V					3.15	IN-LINE	DIP24,.6	Y	2.7 V	70 Cel	0 Cel		DUAL	5.08 mm		15.24 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	31.75 mm		1	CMOS		SECONDS	3.15 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	YES
BQ4285EPN	Texas Instruments	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		DUAL					8	.032 MHz					1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	YES
DP8573AN	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL						3/5	IN-LINE	DIP24,.3	Y		85 Cel	-40 Cel		DUAL							NOT SPECIFIED	NOT SPECIFIED				CMOS		1/100 SECOND		Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	YES
BQ4287EMT	Texas Instruments		COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL						5	IN-LINE	DIP24,.6	Y		70 Cel	0 Cel		DUAL												CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	NO

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.