INDUSTRIAL Timers & Real-Time Clocks 1,864

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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	Screening Level	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
M48T37V-70MH6TR	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V		8	3.3	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	N	3 V	85 Cel	-40 Cel		DUAL	3.05 mm	8.56 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	18.1 mm	0	CMOS	SECONDS	3.3 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO	e0
M41T80M6F	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V			2.5/5	SMALL OUTLINE	SOP8,.25	Y	2 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	3.9 mm			.032 MHz		260	4.9 mm	1	CMOS	1/100 SECOND	3 V	Timer or RTC	1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e4
M41T82SQA6E	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	16	HVQCCN	SQUARE	UNSPECIFIED	YES	I2C	5.5 V		8		CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			3 V	85 Cel	-40 Cel		QUAD	1 mm	4 mm		1	.4 MHz	30	260	4 mm	1	CMOS				.65 mm	S-XQCC-N16		Not Qualified
M41T00SC64MY6E	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	18	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 2-WIRE/I2C	5.5 V			3/5	SMALL OUTLINE	SOP18,.4	N	2.7 V	85 Cel	-40 Cel		DUAL	2.69 mm	7.62 mm		0	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	11.6 mm		CMOS	SECONDS	3 V	Timer or RTC	1.27 mm	R-PDSO-G18		Not Qualified
M41T93RQA6E	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	16	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 4 WIRE/SPI	5.5 V		8	3/5	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC16,.12SQ,20	Y	2.7 V	85 Cel	-40 Cel		QUAD	1 mm	4 mm			5 MHz	NOT SPECIFIED	NOT SPECIFIED	4 mm	1	CMOS	1/100 SECOND	3 V	Timers or RTCs	.65 mm	S-PQCC-N16		Not Qualified	NO
M41T83RM6E	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V		8		SMALL OUTLINE			2.7 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	3.9 mm			.4 MHz			4.9 mm	1	CMOS		3 V		1.27 mm	R-PDSO-G8	1	Not Qualified		e4
M41T0DS6	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V			2.5/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	N	2 V	85 Cel	-40 Cel		DUAL	1.1 mm	3 mm			.032 MHz			3 mm		CMOS	SECONDS	3 V	Timer or RTC	.65 mm	S-PDSO-G8		Not Qualified	YES
933728070118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	6 V				SMALL OUTLINE			2.5 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm	7.5 mm			.032 MHz			10.3 mm		CMOS		5 V		1.27 mm	R-PDSO-G16		Not Qualified		e4
PCA85063ATT	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.9 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.1 mm	3 mm				30	260	3 mm	1	CMOS		3.3 V		.65 mm	S-PDSO-G8	1			e4
935151600112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	6 V				SMALL OUTLINE			2.5 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	3.9 mm			.032 MHz			4.9 mm	0	CMOS		5 V		1.27 mm	R-PDSO-G8		Not Qualified		e4
933508000118	NXP Semiconductors	TIMER, PROGRAMMABLE	INDUSTRIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	15 V				SMALL OUTLINE				85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	3.9 mm		0				8.65 mm	1	CMOS		5 V		1.27 mm	R-PDSO-G14				e4
933508000112	NXP Semiconductors	TIMER, PROGRAMMABLE	INDUSTRIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	15 V				SMALL OUTLINE				85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	3.9 mm		0				8.65 mm	1	CMOS		5 V		1.27 mm	R-PDSO-G14				e4
933507980652	NXP Semiconductors	TIMER, PROGRAMMABLE	INDUSTRIAL	THROUGH-HOLE	14	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	15 V				IN-LINE				85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	4.2 mm	7.62 mm		0				19.025 mm	1	CMOS		5 V		2.54 mm	R-PDIP-T14				e4
935151750112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	6 V				IN-LINE			2.5 V	85 Cel	-40 Cel		DUAL	4.2 mm	7.62 mm			.032 MHz	NOT SPECIFIED	NOT SPECIFIED	9.5 mm	0	CMOS		5 V		2.54 mm	R-PDIP-T8		Not Qualified
933728070112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	6 V				SMALL OUTLINE			2.5 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm	7.5 mm			.032 MHz			10.3 mm		CMOS		5 V		1.27 mm	R-PDSO-G16		Not Qualified		e4
933508000652	NXP Semiconductors	TIMER, PROGRAMMABLE	INDUSTRIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	15 V				SMALL OUTLINE				85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	3.9 mm		0				8.65 mm	1	CMOS		5 V		1.27 mm	R-PDSO-G14				e4
933508000512	NXP Semiconductors	TIMER, PROGRAMMABLE	INDUSTRIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	15 V				SMALL OUTLINE				85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	3.9 mm		0				8.65 mm	1	CMOS		5 V		1.27 mm	R-PDSO-G14				e4
935151600118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	6 V				SMALL OUTLINE			2.5 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	3.9 mm			.032 MHz			4.9 mm	0	CMOS		5 V		1.27 mm	R-PDSO-G8		Not Qualified		e4
933508000518	NXP Semiconductors	TIMER, PROGRAMMABLE	INDUSTRIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	15 V				SMALL OUTLINE				85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	3.9 mm		0				8.65 mm	1	CMOS		5 V		1.27 mm	R-PDSO-G14				e4
PCA85063ATT/A	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V	AEC-Q100			SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.9 V	105 Cel	-40 Cel		DUAL	1.1 mm	3 mm						3 mm	1	CMOS		3.3 V		.65 mm	S-PDSO-G8
933508000653	NXP Semiconductors	TIMER, PROGRAMMABLE	INDUSTRIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	15 V				SMALL OUTLINE				85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	3.9 mm		0				8.65 mm	1	CMOS		5 V		1.27 mm	R-PDSO-G14				e4
935192230015	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD		DIE	UNSPECIFIED	UNSPECIFIED	YES	I2C	6 V				UNCASED CHIP			2.5 V	85 Cel	-40 Cel		UPPER					.032 MHz	NOT SPECIFIED	NOT SPECIFIED			CMOS		5 V			X-XUUC-N		Not Qualified
933728090112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	6 V				IN-LINE			2.5 V	85 Cel	-40 Cel		DUAL	4.2 mm	7.62 mm			.032 MHz	40	245	19.025 mm		CMOS		5 V		2.54 mm	R-PDIP-T16		Not Qualified
935040580112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	6 V				IN-LINE			2.5 V	85 Cel	-40 Cel		DUAL	4.2 mm	7.62 mm	TIMEKEEPING CURRENT = 10UA; AUTO WORD INCREMENTING	0	1 MHz			9.5 mm	0	CMOS		5 V		2.54 mm	R-PDIP-T8
935282253118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	20	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	I2C	6 V				CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			2.5 V	85 Cel	-40 Cel		QUAD	1 mm	5 mm		0	1 MHz			5 mm		CMOS		5 V		.65 mm	S-PQCC-N20
935286382118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	16	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			1.1 V	85 Cel	-40 Cel		QUAD	1 mm	3 mm			.032 MHz			3 mm	1	CMOS		1.6 V		.5 mm	S-PQCC-N16
935291196112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	14	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			1.2 V	85 Cel	-40 Cel		DUAL	1.1 mm	4.4 mm			.032 MHz			5 mm	1	CMOS		3 V		.65 mm	R-PDSO-G14
935297464518	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	4.2 V				SMALL OUTLINE			1.8 V	85 Cel	-40 Cel		DUAL	2.65 mm	7.5 mm						10.3 mm	1	CMOS		2 V		1.27 mm	R-PDSO-G16
935262217118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE			1.8 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	3.9 mm			.032 MHz			4.9 mm	1	CMOS		2 V		1.27 mm	R-PDSO-G8	1	Not Qualified		e4
935293916118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			1.8 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.1 mm	3 mm			.032 MHz	30	260	3 mm	1	CMOS		2 V		.65 mm	S-PDSO-G8	1			e4
935262217112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE			1.8 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	3.9 mm			.032 MHz			4.9 mm	1	CMOS		2 V		1.27 mm	R-PDSO-G8	1	Not Qualified		e4
935293573118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	8	VSON	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, VERY THIN PROFILE			1.2 V	85 Cel	-40 Cel		DUAL	1 mm	4 mm			.032 MHz			4 mm	1	CMOS		3 V		.8 mm	S-PDSO-N8
935279522118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			1.8 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.1 mm	3 mm			.032 MHz	30	260	3 mm	1	CMOS		2 V		.65 mm	S-PDSO-G8	1			e4
935288601512	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	4.2 V				SMALL OUTLINE			1.8 V	85 Cel	-40 Cel		DUAL	2.65 mm	7.5 mm						10.3 mm	1	CMOS		2 V		1.27 mm	R-PDSO-G16
935286382112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	16	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			1.1 V	85 Cel	-40 Cel		QUAD	1 mm	3 mm			.032 MHz			3 mm	1	CMOS		1.6 V		.5 mm	S-PQCC-N16
935297365147	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	8	VSON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, VERY THIN PROFILE			.9 V	85 Cel	-40 Cel		DUAL	.8 mm	2 mm						3 mm	1	CMOS		3.3 V		.5 mm	R-PDSO-N8
935304461118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	10	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.9 V	85 Cel	-40 Cel		DUAL	1.1 mm	3 mm						3 mm	1	CMOS		3.3 V		.5 mm	S-PDSO-G10
935293915518	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE			1.8 V	85 Cel	-40 Cel		DUAL	1.75 mm	3.9 mm			.032 MHz			4.9 mm	1	CMOS		2 V		1.27 mm	R-PDSO-G8
935304752118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	10	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.9 V	85 Cel	-40 Cel		DUAL	1.1 mm	3 mm						3 mm	1	CMOS		3.3 V		.5 mm	S-PDSO-G10
935286382512	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	16	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			1.1 V	85 Cel	-40 Cel		QUAD	1 mm	3 mm			.032 MHz			3 mm	1	CMOS		1.6 V		.5 mm	S-PQCC-N16
935286382518	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	16	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE			1.1 V	85 Cel	-40 Cel		QUAD	1 mm	3 mm			.032 MHz			3 mm	1	CMOS		1.6 V		.5 mm	S-PQCC-N16
935288599518	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	4.2 V				SMALL OUTLINE			1.8 V	85 Cel	-40 Cel		DUAL	2.65 mm	7.5 mm						12.8 mm	1	CMOS		2 V		1.27 mm	R-PDSO-G20
935303639518	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE			.9 V	85 Cel	-40 Cel		DUAL	1.75 mm	3.9 mm						4.9 mm	1	CMOS		3.3 V		1.27 mm	R-PDSO-G8
935290953512	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	4.2 V				SMALL OUTLINE			1.8 V	85 Cel	-40 Cel		DUAL	2.65 mm	7.5 mm						12.8 mm	1	CMOS		2 V		1.27 mm	R-PDSO-G20
935288599512	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	4.2 V				SMALL OUTLINE			1.8 V	85 Cel	-40 Cel		DUAL	2.65 mm	7.5 mm						12.8 mm	1	CMOS		2 V		1.27 mm	R-PDSO-G20
935288598518	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	4.2 V				SMALL OUTLINE			1.8 V	85 Cel	-40 Cel		DUAL	2.65 mm	7.5 mm						10.3 mm	1	CMOS		3.3 V		1.27 mm	R-PDSO-G16
935305541118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V	AEC-Q100			SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.9 V	105 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.1 mm	3 mm				30	260	3 mm	1	CMOS		3.3 V		.65 mm	S-PDSO-G8	1			e4
935288601518	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	4.2 V				SMALL OUTLINE			1.8 V	85 Cel	-40 Cel		DUAL	2.65 mm	7.5 mm						10.3 mm	1	CMOS		2 V		1.27 mm	R-PDSO-G16

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.