COMMERCIAL Timers & Real-Time Clocks 1,183

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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	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
DS1315S-5V	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, FIXED PROTOCOL	5.5 V		5	SMALL OUTLINE	SOP16,.4	N	4.5 V	70 Cel	TIN LEAD	DUAL									0	CMOS	1/100 SECOND	5 V	Timer or RTC	1.27 mm	R-PDSO-G16	1	Not Qualified	YES	e0
DS1644-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP28,.6	N		70 Cel	Tin/Lead (Sn/Pb)	DUAL										CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1501WS/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V		3.3	SMALL OUTLINE	SOP28,.45	Y	3 V	70 Cel	TIN LEAD	DUAL	3.05 mm	8.565 mm		8	.032 MHz			18.1 mm	1	CMOS	SECONDS	3.3 V	Timer or RTC	1.27 mm	R-PDSO-G28	1	Not Qualified	YES	e0
DS1501YE/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			4.5 V	70 Cel	TIN LEAD	DUAL	1.2 mm	8 mm		8	.032 MHz			11.8 mm	1	CMOS		5 V		.55 mm	R-PDSO-G28	3	Not Qualified		e0
DS1302S-16/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V		3/5	SMALL OUTLINE	SOP16,.4	N	2 V	70 Cel	TIN LEAD	DUAL	2.67 mm	7.495 mm	BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA		.032 MHz			10.285 mm	0	CMOS	SECONDS	3.3 V	Timer or RTC	1.27 mm	R-PDSO-G16	1	Not Qualified	NO	e0
DS1553P-100	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	Y	4.5 V	70 Cel	TIN LEAD	DUAL			A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz				0	CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e0
DS1315S+33	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, FIXED PROTOCOL	3.6 V			SMALL OUTLINE			3 V	70 Cel	MATTE TIN	DUAL	2.68 mm	7.51 mm			.032 MHz			10.335 mm		CMOS		3.3 V		1.27 mm	R-PDSO-G16		Not Qualified		e3
DS1215	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL			5	IN-LINE	DIP16,.3	N		70 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
DS1670	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	3.63 V			SMALL OUTLINE			2.97 V	70 Cel	TIN LEAD	DUAL					1 MHz				0	CMOS		3.3 V			R-PDSO-G20	1	Not Qualified		e0
DS1643-70	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	N	4.5 V	70 Cel	TIN LEAD	DUAL	9.02 mm	15.24 mm		8	.032 MHz			37.595 mm	1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-P28	1	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	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
DS1501YE+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.53,22	Y	4.5 V	70 Cel	MATTE TIN	DUAL	1.2 mm	8 mm		8	.032 MHz	30	260	11.8 mm	1	CMOS	SECONDS	5 V	Timers or RTCs	.55 mm	R-PDSO-G28	3	Not Qualified	YES	e3
DS12885Q/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V		5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	70 Cel	TIN LEAD	QUAD	4.57 mm	11.505 mm	DAYLIGHT SAVINGS OPTION; SELECTABLE MOTOROLA/INTEL TIMING	8	.032 MHz			11.505 mm	1	CMOS	SECONDS	5 V	Timer or RTC	1.27 mm	S-PQCC-J28		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	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
DS1501WE+T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V		3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.53,22	Y	3 V	70 Cel	MATTE TIN	DUAL	1.2 mm	8 mm		8	.032 MHz			11.8 mm	1	CMOS	SECONDS	3.3 V	Timers or RTCs	.55 mm	R-PDSO-G28	3	Not Qualified	YES	e3
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	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
DS1743-85+	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	N	4.5 V	70 Cel	MATTE TIN	DUAL				8	.032 MHz				0	CMOS	SECONDS	5 V	Timers or RTCs	2.54 mm	R-XDMA-P28		Not Qualified	NO	e3
DS1744-100	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP28,.6	N		70 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	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
DS1556W-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	MICROELECTRONIC ASSEMBLY	DIP32,.6	Y	2.97 V	70 Cel	TIN LEAD	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-PDMA-P32		Not Qualified	NO	e0
DS1543P-100	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	NO LEAD	34		RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	Y	4.5 V	70 Cel		DUAL				8	10 MHz				0	CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-N34	1	Not Qualified	NO
DS1742W-150+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	IN-LINE	DIP24,.6	N	2.97 V	70 Cel	MATTE TIN	DUAL	8.51 mm	15.24 mm		8	.032 MHz			37.595 mm	0	CMOS	SECONDS	3.3 V	Timer or RTC	2.54 mm	R-PDIP-P24		Not Qualified	NO	e3
DS17485S-3/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V		3	SMALL OUTLINE	SOP24,.4	Y	2.7 V	70 Cel	TIN LEAD	DUAL	2.67 mm	7.5 mm		8	.032 MHz			17.9 mm	1	CMOS	SECONDS	3 V	Timer or RTC	1.27 mm	R-PDSO-G24		Not Qualified	NO	e0
DS1501YS/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		5	SMALL OUTLINE	SOP28,.45	Y	4.5 V	70 Cel	TIN LEAD	DUAL	3.05 mm	8.565 mm		8	.032 MHz			18.1 mm	1	CMOS	SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28	1	Not Qualified	YES	e0
DS1248W-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			3.3	IN-LINE	DIP32,.6	N		70 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
DS1557WP-150	Maxim Integrated		COMMERCIAL		34			PLASTIC/EPOXY		PARALLEL			3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	Y		70 Cel												CMOS	SECONDS	3.3 V	Timer or RTC				Not Qualified	NO
DS1254YB-100	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	BALL	41	BGA	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		3.3/5	GRID ARRAY	BGA168,19X23,50	N	4.5 V	70 Cel	TIN LEAD	BOTTOM	5.92 mm	40 mm		8				40 mm		CMOS	1/100 SECOND	5 V	Timer or RTC	1.27 mm	S-PBGA-B41		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	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
DS1689S+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS/MUXED BUS	4 V	16	3/5	SMALL OUTLINE	SOP28,.45	Y	2.7 V	70 Cel	MATTE TIN	DUAL	3.05 mm	8.565 mm	CAN ALSO OPERATE WITH 5V SUPPLY	8	.032 MHz			18.1 mm	1	CMOS	SECONDS	3 V	Timer or RTC	1.27 mm	R-PDSO-G28		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	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	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	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
DS1553P-70+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V			MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	MATTE TIN	DUAL				8	.032 MHz					CMOS		5 V			R-XDMA-U34		Not Qualified		e3
DS17885E-3	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V		3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.53,22	Y	2.7 V	70 Cel	TIN LEAD	DUAL	1.2 mm	8 mm		8	.032 MHz			11.8 mm	1	CMOS	SECONDS	3 V	Timer or RTC	.55 mm	R-PDSO-G28	3	Not Qualified	YES	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	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	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	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	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	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	Tin/Lead (Sn/Pb)	DUAL										CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T32		Not Qualified	NO	e0
DS1244W-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			5	IN-LINE	DIP28,.6	N		70 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
DS1386-8-120	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	TIN LEAD	DUAL	10.922 mm	15.24 mm		8	.032 MHz			43.053 mm	1	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-P32	1	Not Qualified	NO	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	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
DS1384T-150	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	QFP	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		5	FLATPACK	TQFP44,.47SQ,32	Y	4.5 V	70 Cel	TIN LEAD	QUAD				8					1	CMOS	1/100 SECOND	5 V	Timer or RTC	.8 mm	S-PQFP-G44		Not Qualified	YES	e0
DS1743W-150	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	QIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	2.97 V	70 Cel	TIN LEAD	DUAL	10.67 mm	15.24 mm		8	.032 MHz			38.225 mm	0	CMOS	SECONDS	3.3 V	Timer or RTC	2.54 mm	R-XDMA-P28	1	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	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
DS1384FP-12+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	QFP	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		5	FLATPACK	QFP44,.57SQ,32	Y	4.5 V	70 Cel	MATTE TIN	QUAD	2.45 mm	10 mm		8	.032 MHz			10 mm	1	CMOS	1/100 SECOND	5 V	Timer or RTC	.8 mm	S-PQFP-G44	3	Not Qualified	YES	e3
DS1744P-100	Maxim Integrated		COMMERCIAL		34			PLASTIC/EPOXY		PARALLEL			5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N		70 Cel													SECONDS	5 V	Timer or RTC				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.