TIMER, REAL TIME CLOCK Timers & Real-Time Clocks 2,400+

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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
DS1248W-120IND+	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	PIN/PEG	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	DUAL	10.922 mm	15.24 mm		8				43.053 mm		CMOS	1/100 SECOND	3.3 V	Timer or RTC	2.54 mm	R-PDIP-P32	1	Not Qualified	NO	e3
DS1688	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	0 Cel	TIN LEAD	DUAL	5.08 mm	15.24 mm	CAN ALSO OPERATE AT 5V	8				36.83 mm	1	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	YES	e0
DS1556P-70IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	Y	4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL				8	.032 MHz					CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e0
DS1689SN+	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		Not Qualified	YES	e3
DS12885Q	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	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	1	Not Qualified	YES	e0
DS1644L-12	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34	SOJ-I	RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		5	SMALL OUTLINE	MODULE,34LEAD,1.0	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	6.35 mm	21.5265 mm	ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 10 YEARS DATA RETENTION	8				24.5745 mm	0	CMOS	SECONDS	5 V	Timer or RTC	1.27 mm	R-XDSO-U34		Not Qualified	NO	e0
DS1685E-3/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V		3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP24,.25	Y	2.7 V	70 Cel	0 Cel	TIN LEAD	DUAL	1.1 mm	4.4 mm		8	.032 MHz			7.8 mm	1	CMOS	SECONDS	3 V	Timer or RTC	.65 mm	R-PDSO-G24	1	Not Qualified	YES	e0
DS1553WP-150+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	Y	2.97 V	70 Cel	0 Cel	MATTE TIN	DUAL			A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz	30	260		0	CMOS	SECONDS	3.3 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e3
DS17285-3	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	0 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
DS1244WP-150-IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	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			A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8					0	CMOS	1/100 SECOND	3.3 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e0
DS1248W--120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	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	TIN LEAD	DUAL	10.922 mm	15.24 mm		8				43.053 mm		CMOS	1/100 SECOND	3.3 V	Timer or RTC	2.54 mm	R-PDIP-P32		Not Qualified	NO	e0
DS1386P-32-120	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	0 Cel	TIN LEAD	DUAL				8	.032 MHz				1	CMOS	1/100 SECOND	5 V	Timer or RTC		R-XDMA-U34	1	Not Qualified	NO	e0
DS1672-33	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	3.63 V		3.3	IN-LINE	DIP8,.3	N	2.97 V	85 Cel	-40 Cel	TIN LEAD	DUAL	4.572 mm	7.62 mm			.032 MHz			9.375 mm	0	CMOS	SECONDS	3.3 V	Timer or RTC	2.54 mm	R-PDIP-T8		Not Qualified	NO	e0
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	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
DS1315EN-33/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, FIXED PROTOCOL	3.6 V		3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	N	3 V	85 Cel	-40 Cel	TIN LEAD	DUAL	1.1 mm	4.4 mm		0	.032 MHz			6.5 mm	0	CMOS	1/100 SECOND	3.3 V	Timer or RTC	.65 mm	R-PDSO-G20	1	Not Qualified	YES	e0
DS1393U-18+T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	10	TSSOP	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 2-WIRE/I2C	1.89 V		1.8	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP10,.19,20	Y	1.71 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.1 mm	3 mm			.032 MHz			3 mm	1	CMOS	1/100 SECOND	1.8 V	Timers or RTCs	.5 mm	S-PDSO-G10	1	Not Qualified	NO	e3
DS1685EN-5	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	24	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V		5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP24,.25		4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	1.1 mm	4.4 mm		8	.032 MHz			7.8 mm	1	CMOS	SECONDS	5 V	Timer or RTC	.65 mm	R-PDSO-G24	1	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	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
DS17485N-5	Maxim Integrated	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	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	YES	e0
DS17885E-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	MATTE TIN	DUAL	1.2 mm	8 mm		8	.032 MHz	30	260	11.8 mm	1	CMOS	SECONDS	5 V	Timer or RTC	.55 mm	R-PDSO-G28	3	Not Qualified	YES	e3
DS1338C-18	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	1.89 V			SMALL OUTLINE			1.71 V	85 Cel	-40 Cel	TIN LEAD	DUAL	2.65 mm	7.5 mm			.032 MHz			10.3 mm	1	CMOS		1.8 V		1.27 mm	R-PDSO-G16	1	Not Qualified		e0
DS1216C-3.3V	Maxim Integrated	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
DS16460-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32		RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL				8	.032 MHz				0	CMOS		5 V			R-XDMA-P32		Not Qualified		e0
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
DS1687-5	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	0 Cel	TIN LEAD	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	e0
DS1646P	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	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL				8	.032 MHz				0	CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e0
DS1251W-120+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	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	DUAL	10.922 mm	15.24 mm		8				43.053 mm		CMOS	1/100 SECOND	3.3 V	Timer or RTC	2.54 mm	R-PDIP-P32		Not Qualified	NO	e3
DS1685EN-3/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	24	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V		3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP24,.25	Y	2.7 V	85 Cel	-40 Cel	TIN LEAD	DUAL	1.1 mm	4.4 mm		8	.032 MHz			7.8 mm	1	CMOS	SECONDS	3 V	Timer or RTC	.65 mm	R-PDSO-G24	1	Not Qualified	YES	e0
DS17485-3	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	0 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
DS17885SN-5	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V		5	SMALL OUTLINE	SOP24,.4	Y	4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	2.67 mm	7.5 mm		8	.032 MHz			17.9 mm	1	CMOS	SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G24	1	Not Qualified	NO	e0
DS1338C-3	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.3 V			SMALL OUTLINE			2.7 V	85 Cel	-40 Cel	TIN LEAD	DUAL	2.65 mm	7.5 mm			.032 MHz			10.3 mm	1	CMOS		3 V		1.27 mm	R-PDSO-G16	1	Not Qualified		e0
DS1254YB2-100	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	0 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
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
DS17885N-5	Maxim Integrated	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	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
DS1543P-70	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	0 Cel		DUAL				8	14.285 MHz				0	CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-N34	1	Not Qualified	NO
DS1685S-5+C01	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V		5	SMALL OUTLINE	SOP24,.4	Y	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	2.67 mm	7.5 mm		8	.032 MHz	30	260	17.9 mm	1	CMOS	SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G24	1	Not Qualified	YES	e3
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
DS1315SN+33	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, FIXED PROTOCOL	3.6 V			SMALL OUTLINE			3 V	85 Cel	-40 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
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
DS1558W-TRL	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	48	TFQFP	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.63 V		3.3	FLATPACK, THIN PROFILE, FINE PITCH	TQFP48,.35SQ	Y	2.97 V	85 Cel	-40 Cel	TIN LEAD	QUAD	1.2 mm	7 mm		8	.032 MHz			7 mm		CMOS	SECONDS	3.3 V	Timer or RTC	.5 mm	S-PQFP-G48		Not Qualified	NO	e0
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
DS1602+	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, 3-WIRE	5.5 V			IN-LINE			4.5 V	85 Cel	-40 Cel	MATTE TIN	DUAL	4.572 mm	7.62 mm	TWO 32-BIT COUNTERS TO TRACK REAL & ELAPSED TIME; ONE BYTE PROTOCOL; TIMEKEEPING CURRENT = 400NA		2 MHz	30	260	9.375 mm	0	CMOS		5 V		2.54 mm	R-PDIP-T8	1	Not Qualified		e3
DS1500WEN+	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	32	LSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V		3.3	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	TSSOP32,.8,20	Y	3 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.24 mm	8 mm		8	.032 MHz			18.4 mm	1	CMOS	SECONDS	3.3 V	Timer or RTC	.5 mm	R-PDSO-G32	3	Not Qualified	NO	e3
DS1554W-120+	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	0 Cel	MATTE TIN	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
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

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.