28 Timers & Real-Time Clocks 609

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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
DS1501WSN/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V		3.3	SMALL OUTLINE	SOP28,.45	Y	3 V	85 Cel	-40 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
DS1244P-100	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			IN-LINE			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.398 mm	15.24 mm		8				38.862 mm	0	CMOS		5 V		2.54 mm	R-PDIP-P28		Not Qualified		e0
DS1543-70	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	9.02 mm	15.24 mm		8	.032 MHz			37.595 mm	0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1244W-120IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	PIN/PEG	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3/5	IN-LINE	DIP28,.6	N	2.97 V	85 Cel	-40 Cel	TIN LEAD	DUAL	9.398 mm	15.24 mm		8				38.862 mm	0	CMOS	1/100 SECOND	3.3 V	Timer or RTC	2.54 mm	R-PDIP-P28	1	Not Qualified	NO	e0
DS1501YEN+	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	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	85 Cel	-40 Cel	Matte Tin (Sn)	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
DS1689SN+T&R-W	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	4 V			SMALL OUTLINE			2.7 V	85 Cel	-40 Cel		DUAL	3.05 mm	8.565 mm	ALSO OPERATES AT 5 V TYP SUPPLY	8		NOT SPECIFIED	NOT SPECIFIED	18.1 mm	1	CMOS		3 V		1.27 mm	R-PDSO-G28
DS1501WSN+	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V		3.3	SMALL OUTLINE	SOP28,.45	Y	3 V	85 Cel	-40 Cel	MATTE TIN	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		Not Qualified	YES	e3
DS1685Q-3/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V		3	CHIP CARRIER	LDCC28,.5SQ	Y	2.7 V	70 Cel	0 Cel	TIN LEAD	QUAD	4.57 mm	11.505 mm		8	.032 MHz			11.505 mm	1	CMOS	SECONDS	3 V	Timer or RTC	1.27 mm	S-PQCC-J28		Not Qualified	YES	e0
DS1743W-120IND+	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	PIN/PEG	28	QIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	2.97 V	85 Cel	-40 Cel	MATTE TIN	DUAL	10.67 mm	15.24 mm		8	.032 MHz			38.225 mm	0	CMOS	SECONDS	3.3 V	Timers or RTCs	2.54 mm	R-XDMA-P28	1	Not Qualified	NO	e3
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	0 Cel	MATTE TIN	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	e3
DS1216EK	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
DS1644-12	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	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
DS1744-70	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	70 Cel	0 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
DS1397	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	NO	e0
DS1689S+T&R-W	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	4 V			SMALL OUTLINE			2.7 V	70 Cel	0 Cel		DUAL	3.05 mm	8.565 mm	ALSO OPERATES AT 5 V TYP SUPPLY	8		NOT SPECIFIED	NOT SPECIFIED	18.1 mm	1	CMOS		3 V		1.27 mm	R-PDSO-G28
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	0 Cel	MATTE TIN	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	e3
DS1743W-120IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	PIN/PEG	28	QIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	2.97 V	85 Cel	-40 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		Not Qualified	NO	e0
DS1501YSN	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		5	SMALL OUTLINE	SOP28,.45	Y	4.5 V	85 Cel	-40 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
DS1244Y	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL	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		8					0	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1284N	Maxim Integrated	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	TIN LEAD	DUAL	5.08 mm	15.24 mm	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8	.032 MHz			36.83 mm	1	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	YES	e0
DS1283S+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			SMALL OUTLINE			4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL			ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8					1	CMOS		5 V			R-PDSO-G28	1	Not Qualified		e3
DS17285E-5	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V		5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.53,22	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	1.2 mm	8 mm		8	.032 MHz			11.8 mm	1	CMOS	SECONDS	5 V	Timer or RTC	.55 mm	R-PDSO-G28	3	Not Qualified	YES	e0
DS1743-100+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	QIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	10.67 mm	15.24 mm		8	.032 MHz			38.225 mm	0	CMOS	SECONDS	5 V	Timers or RTCs	2.54 mm	R-XDMA-P28	1	Not Qualified	NO	e3
DS1685Q-3+T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V		3	CHIP CARRIER	LDCC28,.5SQ	Y	2.7 V	70 Cel	0 Cel	MATTE TIN	QUAD	4.57 mm	11.505 mm		8	.032 MHz			11.505 mm	1	CMOS	SECONDS	3 V	Timer or RTC	1.27 mm	S-PQCC-J28	1	Not Qualified	YES	e3
DS1553-100+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	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	9.398 mm	15.24 mm		8	.032 MHz			38.862 mm	0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-P28		Not Qualified	NO	e3
DS1283S+T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			SMALL OUTLINE			4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL			ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8					1	CMOS		5 V			R-PDSO-G28	1	Not Qualified		e3
DS1685QN-5	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V		5	CHIP CARRIER	LDCC28,.5SQ		4.5 V	85 Cel	-40 Cel	TIN LEAD	QUAD	4.57 mm	11.505 mm		8	.032 MHz			11.505 mm	1	CMOS	SECONDS	5 V	Timer or RTC	1.27 mm	S-PQCC-J28		Not Qualified	YES	e0
DS1244W-150-IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	PIN/PEG	28		RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	2.97 V	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL				8					0	CMOS	1/100 SECOND	3.3 V	Timer or RTC		R-XDMA-P28		Not Qualified	NO	e0
DS1685QN-5/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V		5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	85 Cel	-40 Cel	TIN LEAD	QUAD	4.57 mm	11.505 mm		8	.032 MHz			11.505 mm	1	CMOS	SECONDS	5 V	Timer or RTC	1.27 mm	S-PQCC-J28		Not Qualified	YES	e0
DS1689S+T&R	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	0 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	3	Not Qualified	YES	e3
DS1501WEN+T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	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	85 Cel	-40 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
DS1689SN+T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	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	85 Cel	-40 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	3	Not Qualified	YES	e3
DS1685Q-5/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	0 Cel	TIN LEAD	QUAD	4.57 mm	11.505 mm		8	.032 MHz			11.505 mm	1	CMOS	SECONDS	5 V	Timer or RTC	1.27 mm	S-PQCC-J28	1	Not Qualified	YES	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	TIN LEAD	DUAL	5.08 mm	15.24 mm	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8	.032 MHz		245	36.83 mm	1	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T28	1	Not Qualified	YES	e0
DS1244Y-100-IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	PIN/PEG	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL				8					0	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-XDMA-P28		Not Qualified	NO	e0
DS1553W-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	IN-LINE	DIP28,.6	Y	2.97 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.398 mm	15.24 mm		8	.032 MHz			38.862 mm	0	CMOS	SECONDS	3.3 V	Timer or RTC	2.54 mm	R-PDIP-P28		Not Qualified	NO	e0
DS1501YS	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	0 Cel	TIN LEAD	DUAL	3.05 mm	8.565 mm		8	.032 MHz		245	18.1 mm	1	CMOS	SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28	3	Not Qualified	YES	e0
DS1744W-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL			3.3	IN-LINE	DIP28,.6	N		70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL											SECONDS	3.3 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
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	0 Cel	MATTE TIN	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	e3
DS1743W-150IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	PIN/PEG	28	QIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	2.97 V	85 Cel	-40 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		Not Qualified	NO	e0
DS1743-70+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	QIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	10.67 mm	15.24 mm		8	.032 MHz			38.225 mm	0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-P28	1	Not Qualified	NO	e3
DS1501WEN/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	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	85 Cel	-40 Cel	TIN LEAD	DUAL	1.2 mm	8 mm		8	.032 MHz			11.8 mm	1	CMOS	SECONDS	3.3 V	Timer or RTC	.55 mm	R-PDSO-G28	3	Not Qualified	YES	e0
DS1743-100	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	QIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	10.67 mm	15.24 mm		8	.032 MHz			38.225 mm	0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-P28	1	Not Qualified	NO	e0
DS1685Q-3+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V		3	CHIP CARRIER	LDCC28,.5SQ	Y	2.7 V	70 Cel	0 Cel	MATTE TIN	QUAD	4.57 mm	11.505 mm		8	.032 MHz		245	11.505 mm	1	CMOS	SECONDS	3 V	Timer or RTC	1.27 mm	S-PQCC-J28	1	Not Qualified	YES	e3
DS1688S	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS/MUXED BUS	5.5 V	16	3/5	SMALL OUTLINE	SOP28,.45	Y	2.7 V	70 Cel	0 Cel	TIN LEAD	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	1	Not Qualified	YES	e0
DS1743W-200	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	2.97 V	70 Cel	0 Cel	TIN LEAD	DUAL				8					0	CMOS	SECONDS	3.3 V	Timer or RTC	2.54 mm	R-XDMA-T28		Not Qualified	NO	e0
DS1553W-150	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	IN-LINE	DIP28,.6	Y	2.97 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.398 mm	15.24 mm		8	.032 MHz			38.862 mm	0	CMOS	SECONDS	3.3 V	Timer or RTC	2.54 mm	R-PDIP-P28		Not Qualified	NO	e0
DS1501YN	Maxim Integrated	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	TIN LEAD	DUAL	5.08 mm	15.24 mm		8	.032 MHz			36.83 mm	1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	YES	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.