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
DS1646	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		5	MICROELECTRONIC ASSEMBLY	DIP32,.6	N	4.5 V	70 Cel	TIN LEAD	DUAL				8	.032 MHz				0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-P32		Not Qualified	NO	e0
DS1543-100	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	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
DS1691	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS/MUXED BUS	5.5 V	16	3/5	IN-LINE	DIP28,.6	Y	2.7 V	70 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		Not Qualified	NO	e0
DS17885S-5/T&R	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	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	YES	e0
DS1743P-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	N	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	1	Not Qualified	NO	e0
DS1642-70	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V		5	MICROELECTRONIC ASSEMBLY	DIP24,.6	N	4.5 V	70 Cel	TIN LEAD	DUAL	10.668 mm	15.24 mm		8	.032 MHz			33.02 mm		CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-PDMA-P24	1	Not Qualified	NO	e0
DS1254Y	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	BALL	168	BGA	SQUARE	PLASTIC/EPOXY	YES	SERIAL, FIXED PROTOCOL	5.5 V			GRID ARRAY			4.5 V	70 Cel	TIN LEAD	BOTTOM		40 mm		0				40 mm	0	CMOS		5 V		1.27 mm	S-PBGA-B168		Not Qualified		e0
DS12885T	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	32	TQFP	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V		5	FLATPACK, THIN PROFILE	TQFP32,.35SQ,32	Y	4.5 V	70 Cel	TIN LEAD	QUAD	1.2 mm	7 mm	DAYLIGHT SAVINGS OPTION; SELECTABLE MOTOROLA/INTEL TIMING	8	.032 MHz			7 mm	1	CMOS	SECONDS	5 V	Timer or RTC	.8 mm	S-PQFP-G32	1	Not Qualified	YES	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		2.7 V	70 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
DS1553P-85+	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	Matte Tin (Sn)	DUAL			A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz	30	260		0	CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e3
DS1556WP-150	Maxim Integrated		COMMERCIAL		34			PLASTIC/EPOXY		PARALLEL			3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	Y		70 Cel													SECONDS	3.3 V	Timer or RTC				Not Qualified	NO
DS1386P08-120	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		DUAL			A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz				1	CMOS	1/100 SECOND	5 V	Timer or RTC		R-XDMA-U34	1	Not Qualified	NO
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	TIN LEAD	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	e0
DS1315-33	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL	3.6 V		3.3	IN-LINE	DIP16,.3	N	3 V	70 Cel	TIN LEAD	DUAL	4.572 mm	7.62 mm		0	.032 MHz			19.175 mm	0	CMOS	1/100 SECOND	3.3 V	Timer or RTC	2.54 mm	R-PDIP-T16	1	Not Qualified	YES	e0
DS1587	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	NO	e0
DS1252Y-120	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
DS1743P-70	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	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	1	Not Qualified	NO	e0
DS1553WP-120	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	TIN LEAD	DUAL			A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz				0	CMOS	SECONDS	3.3 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e0
DS17487-3	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	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	e0
DS1743P-C01+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		3.3/5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	4.5 V	70 Cel	MATTE TIN	DUAL				8	.032 MHz				0	CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e3
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	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
DS1746WP-150	Maxim Integrated		COMMERCIAL		34			PLASTIC/EPOXY		PARALLEL			3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N		70 Cel													SECONDS	3.3 V	Timer or RTC				Not Qualified	NO
DS1384FP-120	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	TIN LEAD	QUAD				8					1	CMOS	1/100 SECOND	5 V	Timer or RTC	.8 mm	S-PQFP-G44		Not Qualified	YES	e0
DS1216E-3	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL	3.3 V		3	IN-LINE	DIP28,.6	N	2.7 V	70 Cel	TIN LEAD	DUAL	11.94 mm	15.24 mm						35.69 mm	0	CMOS	1/100 SECOND	3 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1244WP-150	Maxim Integrated		COMMERCIAL		34			PLASTIC/EPOXY		PARALLEL			5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N		70 Cel												CMOS	1/100 SECOND	5 V	Timer or RTC				Not Qualified	NO
DS1384FP	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	QFP	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			FLATPACK			4.5 V	70 Cel	TIN LEAD	QUAD	2.45 mm	9.95 mm		8				9.95 mm	1	CMOS		5 V		.8 mm	S-PQFP-G44		Not Qualified		e0
DS1744W-120	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	TIN LEAD	DUAL	10.42 mm	15.24 mm		8	.032 MHz			38.865 mm	0	CMOS	SECONDS	3.3 V	Timer or RTC	2.54 mm	R-XDMA-T28		Not Qualified	NO	e0
DS1643L-120	Maxim Integrated		COMMERCIAL		26			PLASTIC/EPOXY		PARALLEL			5	MICROELECTRONIC ASSEMBLY	MODULE,26LEAD,.80	N		70 Cel												CMOS	SECONDS	5 V	Timer or RTC				Not Qualified	NO
DS1643P-85+	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				0	CMOS		5 V			R-XDMA-U34		Not Qualified		e3
DS1511Y-5VIND	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			IN-LINE			4.5 V	70 Cel	TIN LEAD	DUAL	9.398 mm	15.24 mm		8	.032 MHz			38.862 mm	1	CMOS		5 V		2.54 mm	R-PDIP-T28		Not Qualified		e0
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	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
DS1557P-100	Maxim Integrated		COMMERCIAL		34			PLASTIC/EPOXY		PARALLEL			5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	Y		70 Cel												CMOS	SECONDS	5 V	Timer or RTC				Not Qualified	NO
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	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	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	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	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	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
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	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
DS1244Y-200	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
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	TIN LEAD	DUAL				8	.032 MHz				1	CMOS	1/100 SECOND	5 V	Timer or RTC		R-XDMA-U34	1	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	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
DS1556P-100	Maxim Integrated		COMMERCIAL		34			PLASTIC/EPOXY		PARALLEL			5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	Y		70 Cel													SECONDS	5 V	Timer or RTC				Not Qualified	NO
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	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
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	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
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	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	TIN LEAD	DUAL				8	.032 MHz				0	CMOS		5 V			R-XDMA-P32		Not Qualified		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	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	TIN LEAD	DUAL				8	.032 MHz				0	CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-U34		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.