Analog Devices Timers & Real-Time Clocks 514

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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	On Chip Data RAM Width	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	RAM Words	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
MAX31334ETC+	Analog Devices	TIMER, REAL TIME CLOCK		NO LEAD	12	HVSON	SQUARE	UNSPECIFIED	YES	SERIAL(I2C)	5.5 V	8		SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SOLCC8,.12,20	Y	1.1 V	85 Cel	-40 Cel		DUAL	.8 mm	32	3 mm		0	.032768 MHz			3 mm	1	CMOS	SECONDS	3 V		.5 mm	S-XDSO-N12			YES
MAX31334EWC+T	Analog Devices	TIMER, REAL TIME CLOCK		BALL	12	VFBGA	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V	8		GRID ARRAY, VERY THIN PROFILE, FINE PITCH	BGA12,3X4,20	Y	1.1 V	85 Cel	-40 Cel		BOTTOM	.69 mm	32	1.468 mm		0	.032768 MHz			1.968 mm	1	CMOS	SECONDS	3 V		.5 mm	R-PBGA-B12			YES
MAX31334EWC+	Analog Devices	TIMER, REAL TIME CLOCK		BALL	12	VFBGA	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V	8		GRID ARRAY, VERY THIN PROFILE, FINE PITCH	BGA12,3X4,20	Y	1.1 V	85 Cel	-40 Cel		BOTTOM	.69 mm	32	1.468 mm		0	.032768 MHz			1.968 mm	1	CMOS	SECONDS	3 V		.5 mm	R-PBGA-B12			YES
MAX31334ETC+T	Analog Devices	TIMER, REAL TIME CLOCK		NO LEAD	12	HVSON	SQUARE	UNSPECIFIED	YES	SERIAL(I2C)	5.5 V	8		SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SOLCC8,.12,20	Y	1.1 V	85 Cel	-40 Cel		DUAL	.8 mm	32	3 mm		0	.032768 MHz			3 mm	1	CMOS	SECONDS	3 V		.5 mm	S-XDSO-N12			YES
DS2415P/T&R-W	Analog Devices	TIMER, REAL TIME CLOCK
DS2404B-C01+T	Analog Devices	TIMER, REAL TIME CLOCK
MAX31343EKA+T	Analog Devices	TIMER, REAL TIME CLOCK																		TIN SILVER COPPER NICKEL								30	260									1			e2
5962-01-338-1521	Analog Devices																											NOT SPECIFIED	NOT SPECIFIED			CMOS							Not Qualified
DS2417V	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	C BEND	6	SOC	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 1-WIRE	5.5 V			SMALL OUTLINE			2.2 V	85 Cel	-40 Cel	TIN LEAD	DUAL										0	CMOS		2.7 V			R-PDSO-C6		Not Qualified		e0
DS1495S	Analog Devices		COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL			5	SMALL OUTLINE	SOP28,.5	Y		70 Cel	0 Cel	TIN LEAD	DUAL											CMOS	SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28		Not Qualified	YES	e0
MAX31331EWC+	Analog Devices	TIMER, REAL TIME CLOCK		BALL	12	VFBGA	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V			GRID ARRAY, VERY THIN PROFILE, FINE PITCH	BGA12,3X4,16	Y	1.1 V	85 Cel	-40 Cel		BOTTOM	.69 mm		1.228 mm			.032768 MHz		260	1.628 mm	1	CMOS	SECONDS	3 V		.4 mm	R-PBGA-B12			YES
DS2413Q+U	Analog Devices	TIMER, PROGRAMMABLE	COMMERCIAL	NO LEAD	6	HVSON	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 1-WIRE	5.25 V			SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE			2.8 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	.8 mm		3 mm				30	260	3 mm		CMOS		3.3 V		.95 mm	S-PDSO-N6	1			e3
MAX31331EWC+T	Analog Devices	TIMER, REAL TIME CLOCK		BALL	12	VFBGA	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V			GRID ARRAY, VERY THIN PROFILE, FINE PITCH	BGA12,3X4,16	Y	1.1 V	85 Cel	-40 Cel		BOTTOM	.69 mm		1.228 mm			.032768 MHz		260	1.628 mm	1	CMOS	SECONDS	3 V		.4 mm	R-PBGA-B12			YES
ICM7250I/D	Analog Devices																											NOT SPECIFIED	NOT SPECIFIED			CMOS
MAX31342EWA+T	Analog Devices																			TIN SILVER COPPER NICKEL								30	260									1			e2
DS2413Q+T&R	Analog Devices	TIMER, PROGRAMMABLE	COMMERCIAL	NO LEAD	6	SON	SQUARE	UNSPECIFIED	YES	SERIAL, 1-WIRE	5.25 V			SMALL OUTLINE			2.8 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	.8 mm		3 mm				30	260	3 mm	1	CMOS		3.3 V			S-XDSO-N6	1	Not Qualified		e3
MAX31331TETB+T	Analog Devices	TIMER, REAL TIME CLOCK		NO LEAD	10	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V			CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	SOLCC10,.12SQ,20	Y	1.1 V	85 Cel	-40 Cel		DUAL	.8 mm		3 mm			.032768 MHz		260	3 mm	1	CMOS	SECONDS	3 V		.5 mm	S-PDSO-N10			YES
MAX31331TETB+	Analog Devices	TIMER, REAL TIME CLOCK		NO LEAD	10	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V			CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	SOLCC10,.12SQ,20	Y	1.1 V	85 Cel	-40 Cel		DUAL	.8 mm		3 mm			.032768 MHz		260	3 mm	1	CMOS	SECONDS	3 V		.5 mm	S-PDSO-N10			YES
ICM7240I/D	Analog Devices																											NOT SPECIFIED	NOT SPECIFIED			CMOS
ICM7250IPE-2	Analog Devices																			TIN LEAD												CMOS									e0
DS1315E-5+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, FIXED PROTOCOL	5.5 V		5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	N	4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		4.4 mm		0	.032 MHz	30	260	6.5 mm	0	CMOS	1/100 SECOND	5 V	Timer or RTC	.65 mm	R-PDSO-G20	1	Not Qualified	YES	e3
DS17885SN-3+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V		3	SMALL OUTLINE	SOP24,.4	Y	2.7 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	2.65 mm		7.5 mm		8		30	260	15.4 mm	1	CMOS	SECONDS	3 V	Timer or RTC	1.27 mm	R-PDSO-G24	1	Not Qualified	NO	e3
DS1340U-18+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	1.89 V		1.8	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	N	1.71 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		3 mm			.032 MHz	30	260	3 mm		CMOS	SECONDS	1.8 V	Timer or RTC	.65 mm	S-PDSO-G8	1	Not Qualified	NO	e3
DS1339C-2#	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	2.2 V			SMALL OUTLINE			1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	2.65 mm		7.5 mm			.032 MHz	30	260	10.3 mm	1	CMOS		2 V		1.27 mm	R-PDSO-G16		Not Qualified		e3
DS1556WP	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	TIN LEAD	DUAL				A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz					CMOS	SECONDS	3.3 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e0
DS1315-3V	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL	3.3 V		3	IN-LINE	DIP16,.3	N	2.7 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.72 mm		7.62 mm							0	CMOS	1/100 SECOND	3 V	Timer or RTC	2.54 mm	R-PDIP-T16		Not Qualified	YES	e0
DS1390U-3+T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	10	TSSOP	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	3.3 V		3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP10,.19,20	Y	2.7 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		3 mm			.032 MHz	30	260	3 mm	1	CMOS	1/100 SECOND	3 V	Timers or RTCs	.5 mm	S-PDSO-G10	1	Not Qualified	NO	e3
DS1685E-5+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V		5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP24,.25	Y	4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		4.4 mm		8	.032 MHz	30	260	7.8 mm	1	CMOS	SECONDS	5 V	Timer or RTC	.65 mm	R-PDSO-G24	1	Not Qualified	YES	e3
DS1315N-3V	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, FIXED PROTOCOL			3	IN-LINE	DIP16,.3	N		85 Cel	-45 Cel	TIN LEAD	DUAL	5.72 mm		7.62 mm							0	CMOS	1/100 SECOND	3 V	Timer or RTC	2.54 mm	R-PDIP-T16		Not Qualified	YES	e0
DS1248YP-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	6.858 mm		23.495 mm		8				24.384 mm		CMOS	1/100 SECOND	5 V	Timer or RTC	1.27 mm	R-XDMA-U34	1	Not Qualified	NO	e3
DS1554WP	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	TIN LEAD	DUAL				A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz					CMOS	SECONDS	3.3 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e0
DS1501YE+T&R	Analog Devices	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	0 Cel	Matte Tin (Sn) - annealed	DUAL	1.2 mm		8 mm		8	.032 MHz			11.8 mm	1	CMOS	SECONDS	5 V	Timers or RTCs	.55 mm	R-PDSO-G28	3	Not Qualified	YES	e3
DS16440120+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			IN-LINE			4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	9.27 mm		15.24 mm		8	.032 MHz			37.595 mm		CMOS		5 V		2.54 mm	R-XDIP-T28		Not Qualified		e3
DS1643P-150	Analog Devices		COMMERCIAL		34			PLASTIC/EPOXY		PARALLEL			5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N		70 Cel	0 Cel													CMOS	SECONDS	5 V	Timer or RTC				Not Qualified	NO
DS1557P-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	Y	4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL					8	.032 MHz					CMOS	SECONDS	5 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e3
DS17285S-3+	Analog Devices	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	0 Cel	Matte Tin (Sn) - annealed	DUAL	2.67 mm		7.5 mm		8	.032 MHz	30	260	17.9 mm	1	CMOS	SECONDS	3 V	Timer or RTC	1.27 mm	R-PDSO-G24	1	Not Qualified	YES	e3
DS1315E-5V	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, FIXED PROTOCOL	5.5 V		5	SMALL OUTLINE	TSSOP20,.25	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL										0	CMOS	1/100 SECOND	5 V	Timer or RTC	.635 mm	R-PDSO-G20	1	Not Qualified	YES	e0
DS1746WP	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	TIN LEAD	DUAL				A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz					CMOS	SECONDS	3.3 V	Timer or RTC		R-XDMA-U34		Not Qualified	NO	e0
DS1644L-15	Analog Devices	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
DS1647-15	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			IN-LINE			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL				ACCURACY 1 MIN/MONTH @ 25 DEGREE C; 10 YEARS DATA RETENTION	8					0	CMOS		5 V			R-PDIP-T32		Not Qualified		e0
DS1315S-5+	Analog Devices	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	0 Cel	Matte Tin (Sn) - annealed	DUAL	2.65 mm		7.5 mm		0	.032 MHz	30	260	10.3 mm	0	CMOS	1/100 SECOND	5 V	Timer or RTC	1.27 mm	R-PDSO-G16	1	Not Qualified	YES	e3
DS1391U-3+T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	10	TSSOP	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	3.3 V		3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP10,.19,20	Y	2.7 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		3 mm			.032 MHz	30	260	3 mm	1	CMOS	1/100 SECOND	3 V	Timers or RTCs	.5 mm	S-PDSO-G10	1	Not Qualified	YES	e3
DS1343E-3+T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V			SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			2.7 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		4.4 mm				30	260	6.5 mm	1	CMOS		3 V		.65 mm	R-PDSO-G20	1			e3
DS1344E-33+T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V			SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			3 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		4.4 mm				30	260	6.5 mm	1	CMOS		3.3 V		.65 mm	R-PDSO-G20	1			e3
DS1685E-3+T&R	Analog Devices	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	Matte Tin (Sn) - annealed	DUAL	1.1 mm		4.4 mm		8	.032 MHz	30	260	7.8 mm	1	CMOS	SECONDS	3 V	Timer or RTC	.65 mm	R-PDSO-G24	1	Not Qualified	YES	e3
DS1393U-33+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	10	TSSOP	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 2-WIRE/I2C	5.5 V		3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP10,.19,20	Y	2.97 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		3 mm			.032 MHz	30	260	3 mm	1	CMOS	1/100 SECOND	3.3 V	Timers or RTCs	.5 mm	S-PDSO-G10	1	Not Qualified	NO	e3
DS17887-5+	Analog Devices	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	Matte Tin (Sn) - annealed	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		Not Qualified	NO	e3
DS1673S-5+T&R	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V			SMALL OUTLINE			4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	2.65 mm		7.5 mm				30	260	12.8 mm		CMOS		5 V		1.27 mm	R-PDSO-G20	1			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.