J INVERTED Timers & Real-Time Clocks 166

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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	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
DS1557P-70IND+	Analog Devices	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	Matte Tin (Sn) - annealed	DUAL				8	.032 MHz					CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e3
DS1747WP-120+	Analog Devices	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	N	2.97 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	2.3368 mm	23.495 mm		8	.032 MHz	30	260	25.019 mm	0	CMOS	SECONDS	3.3 V	Timer or RTC	1.27 mm	R-XDMA-U34	1	Not Qualified	NO	e3
DS1251WP-120IND+	Analog Devices	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	Matte Tin (Sn) - annealed	DUAL	6.858 mm	23.495 mm	USE DS9034PCX TO ORDER POWERCAP	8		30	260	24.384 mm		CMOS	1/100 SECOND	3.3 V	Timer or RTC	1.27 mm	R-XDMA-U34		Not Qualified	NO	e3
DS1248WP-120+	Analog Devices	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	N	2.97 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	6.858 mm	23.495 mm		8				24.384 mm		CMOS	1/100 SECOND	3.3 V	Timer or RTC	1.27 mm	R-XDMA-U34	1	Not Qualified	NO	e3
DS1244PP-100	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL				8					0	CMOS		5 V			R-XDMA-U34		Not Qualified		e0
DS1556P-70IND+	Analog Devices	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	Matte Tin (Sn) - annealed	DUAL				8	.032 MHz					CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e3
DS1554P-70IND+	Analog Devices	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	Matte Tin (Sn) - annealed	DUAL	2.3368 mm	23.495 mm		8	.032 MHz			25.019 mm		CMOS	SECONDS	5 V	Timer or RTC	1.27 mm	R-XDMA-U34		Not Qualified	NO	e3
DS1746P-70+	Analog Devices	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	Matte Tin (Sn) - annealed	DUAL	2.3368 mm	23.495 mm		8	.032 MHz			25.019 mm		CMOS	SECONDS	5 V	Timers or RTCs	1.27 mm	R-XDMA-U34	1	Not Qualified	NO	e3
DS1251PP-100-IND	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		MICROELECTRONIC ASSEMBLY			4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL				8	10 MHz					CMOS		5 V			R-XDMA-U34		Not Qualified		e0
DS1747P	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34	DIP	RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V	5	MICROELECTRONIC ASSEMBLY	DIP32,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL			A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz				0	CMOS	SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-U34		Not Qualified	NO	e0
DS1557P	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL			A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz					CMOS		5 V			R-XDMA-U34		Not Qualified		e0
DS1554WP-120IND+	Analog Devices	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	Y	2.97 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	2.3368 mm	23.495 mm		8	.032 MHz			25.019 mm		CMOS	SECONDS	3.3 V	Timer or RTC	1.27 mm	R-XDMA-U34		Not Qualified	NO	e3
DS1647L-15	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34	SOJ-I	RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		SMALL OUTLINE			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	6.35 mm	21.5265 mm		8				24.4475 mm	0	CMOS		5 V		1.27 mm	R-XDSO-U34		Not Qualified		e0
DS1248P-100	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL				8	10 MHz					CMOS		5 V			R-XDMA-U34		Not Qualified		e0
DS1557WP-120+	Analog Devices	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 (Sn) - annealed	DUAL				8	.032 MHz					CMOS	SECONDS	3.3 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e3
DS1647L-12	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34	SOJ-I	RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		SMALL OUTLINE			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	6.35 mm	21.5265 mm		8				24.4475 mm	0	CMOS		5 V		1.27 mm	R-XDSO-U34		Not Qualified		e0
DS1744WP-120IND+	Analog Devices	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	Matte Tin (Sn) - annealed	DUAL	2.3368 mm	23.495 mm		8	.032 MHz			25.019 mm	0	CMOS	SECONDS	3.3 V	Timer or RTC	1.27 mm	R-XDMA-U34		Not Qualified	NO	e3
DS1556WP-120IND+	Analog Devices	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	Y	2.97 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL				8	.032 MHz					CMOS	SECONDS	3.3 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e3
DS1554WP-120+	Analog Devices	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 (Sn) - annealed	DUAL	2.3368 mm	23.495 mm		8	.032 MHz			25.019 mm		CMOS	SECONDS	3.3 V	Timer or RTC	1.27 mm	R-XDMA-U34		Not Qualified	NO	e3
DS1554P	Analog Devices	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			A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz					CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e0
DS1244PP-70	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL				8					0	CMOS		5 V			R-XDMA-U34		Not Qualified		e0
DS1746WP-120IND+	Analog Devices	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	Matte Tin (Sn) - annealed	DUAL	2.3368 mm	23.495 mm		8	.032 MHz			25.019 mm		CMOS	SECONDS	3.3 V	Timers or RTCs	1.27 mm	R-XDMA-U34		Not Qualified	NO	e3
DS1486P-150	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		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
DS1486P-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	MATTE TIN	DUAL				8	.032 MHz					CMOS	1/100 SECOND	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e3
DS1486P-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			A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz				1	CMOS	1/100 SECOND	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	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	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
DS1743P-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	N	4.5 V	70 Cel	0 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
DS1251YP-100-IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		MICROELECTRONIC ASSEMBLY			4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL			A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8					0	CMOS		5 V			R-XDMA-U34		Not Qualified		e0
DS1557WP-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34	SOJ	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	TIN LEAD	DUAL				8	.032 MHz				0	CMOS	SECONDS	3.3 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e0
DS1747WP-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	N	2.97 V	70 Cel	0 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
DS1646L-12	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34	SOJ-I	RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		SMALL OUTLINE			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				24.4475 mm	0	CMOS		5 V		1.27 mm	R-XDSO-U34		Not Qualified		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	0 Cel	MATTE TIN	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	e3
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	MATTE TIN	DUAL				8	.032 MHz				1	CMOS	1/100 SECOND	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e3
DS1248YP-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	0 Cel	TIN LEAD	DUAL			USE DS9034PCX TO ORDER POWERCAP	8					0	CMOS	1/100 SECOND	5 V	Timer or RTC		R-XDMA-U34	1	Not Qualified	NO	e0
DS1644P	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
DS1647P-120	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	0 Cel	TIN LEAD	DUAL				8	.032 MHz				0	CMOS		5 V			R-XDMA-U34	1	Not Qualified		e0
DS1647P-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	N	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL				8	.032 MHz					CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-U34	1	Not Qualified	NO	e3
DS1643P-100+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34	QCCJ	RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V		MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	2.3368 mm	23.495 mm		8	.032 MHz			25.019 mm	0	CMOS		5 V		1.27 mm	R-XDMA-U34		Not Qualified		e3
DS1244YP-100-IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	J INVERTED	34	DIP	RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V	5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL			A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8					0	CMOS	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-XDMA-U34		Not Qualified	NO	e0
DS1647P	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			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
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	0 Cel	MATTE TIN	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	e3
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	0 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
DS1746P-70IND+	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	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	85 Cel	-40 Cel	MATTE TIN	DUAL	2.3368 mm	23.495 mm		8	.032 MHz			25.019 mm		CMOS	SECONDS	5 V	Timers or RTCs	1.27 mm	R-XDMA-U34		Not Qualified	NO	e3
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	0 Cel	MATTE TIN	DUAL				8	.032 MHz					CMOS		5 V			R-XDMA-U34		Not Qualified		e3
DS1747WP-120IND	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	DUAL				8	.032 MHz	20	240		0	CMOS	SECONDS	3.3 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e0
DS1554WP-120IND	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	Y	2.97 V	85 Cel	-40 Cel	TIN LEAD	DUAL				8	.032 MHz					CMOS	SECONDS	3.3 V	Timer or RTC		R-XDMA-U34	1	Not Qualified	NO	e0
DS1557P-70	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34	SOJ	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				0	CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e0
DS1644P-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	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

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.