8 Timers & Real-Time Clocks 770

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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	Screening Level	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	Maximum Supply Current	Minimum Time	Nominal Supply Voltage	Sub-Category	Terminal Pitch	JESD-30 Code	Moisture Sensitivity Level (MSL)	Qualification	Volatile	JESD-609 Code
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
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
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
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
935293581118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE			1.2 V	85 Cel	-40 Cel		DUAL	1.75 mm		3.9 mm			.032 MHz			4.9 mm	1	CMOS			3 V		1.27 mm	R-PDSO-G8
935262218112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	5.5 V				IN-LINE			1.8 V	85 Cel	-40 Cel		DUAL	4.2 mm		7.62 mm			.032 MHz	40	250	9.5 mm	1	CMOS			2 V		2.54 mm	R-PDIP-T8		Not Qualified
935304639118	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
935275723118	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		DUAL	1.75 mm		3.9 mm			.1 MHz			4.9 mm	0	CMOS			5 V		1.27 mm	R-PDSO-G8
935272132118	NXP Semiconductors	TIMER, REAL TIME CLOCK	AUTOMOTIVE	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			1.8 V	125 Cel	-40 Cel		DUAL	1.1 mm		3 mm			.032 MHz			3 mm	1	CMOS			2 V		.65 mm	S-PDSO-G8
935276539512	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	2.65 mm		7.5 mm			.032 MHz			7.55 mm	0	CMOS			5 V		1.27 mm	R-PDSO-G8	2			e4
935303639515	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
935304751118	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		DUAL	1.1 mm		3 mm						3 mm	1	CMOS			3.3 V		.65 mm	S-PDSO-G8
935261345112	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
935278729518	NXP Semiconductors	TIMER, REAL TIME CLOCK	AUTOMOTIVE	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			1.8 V	125 Cel	-40 Cel		DUAL	1.1 mm		3 mm			.032 MHz			3 mm	1	CMOS			2 V		.65 mm	S-PDSO-G8
935262403118	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		DUAL	1.1 mm		3 mm			.032 MHz	NOT SPECIFIED	NOT SPECIFIED	3 mm	1	CMOS			2 V		.65 mm	S-PDSO-G8		Not Qualified
935275723112	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		DUAL	1.75 mm		3.9 mm			.1 MHz			4.9 mm	0	CMOS			5 V		1.27 mm	R-PDSO-G8
935276539518	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	2.65 mm		7.5 mm			.032 MHz			7.55 mm	0	CMOS			5 V		1.27 mm	R-PDSO-G8	2			e4
935273247518	NXP Semiconductors	TIMER, REAL TIME CLOCK	AUTOMOTIVE	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			1.8 V	125 Cel	-40 Cel		DUAL	1.1 mm		3 mm			.032 MHz			3 mm	1	CMOS			2 V		.65 mm	S-PDSO-G8
935304459118	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		DUAL	1.1 mm		3 mm						3 mm	1	CMOS			3.3 V		.65 mm	S-PDSO-G8
935278731518	NXP Semiconductors	TIMER, REAL TIME CLOCK	AUTOMOTIVE	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			1.8 V	125 Cel	-40 Cel		DUAL	1.1 mm		3 mm			.032 MHz			3 mm	1	CMOS			2 V		.65 mm	S-PDSO-G8
935302207118	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
PCF85063ATT	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		DUAL	1.1 mm		3 mm						3 mm	1	CMOS			3.3 V		.65 mm	S-PDSO-G8
PCF8563TS-T	NXP Semiconductors		INDUSTRIAL	GULL WING	8	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 2 WIRE/I2C				2/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	Y		85 Cel	-40 Cel		DUAL											CMOS		SECONDS		Timer or RTC	.635 mm	R-PDSO-G8		Not Qualified	YES
PCF8563TS/F4	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			3 mm	0	CMOS			2 V		.65 mm	R-PDSO-G8		Not Qualified		e4
PCF8563P/F4	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	5.5 V			2/5	IN-LINE	DIP8,.3	Y	1.8 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	4.2 mm		7.62 mm		0	.032 MHz			9.5 mm	1	CMOS		SECONDS	2 V	Timer or RTC	2.54 mm	R-PDIP-T8		Not Qualified	YES	e4
PCF8593N	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	40	250	9.5 mm		CMOS			5 V		2.54 mm	R-PDIP-T8		Not Qualified
PCF85163TS	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V			2/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	Y	1.8 V	85 Cel	-40 Cel		DUAL	1.1 mm		3 mm	ALSO OPERATES WITH 5 V NOMINAL	4	.032 MHz			3 mm		CMOS		SECONDS	2 V	Timer or RTC	.65 mm	R-PDSO-G8		Not Qualified	YES
PCF85163T	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V			2/5	SMALL OUTLINE	SOP8,.25	Y	1.8 V	85 Cel	-40 Cel		DUAL	1.75 mm		3.9 mm	ALSO OPERATES WITH 5 V NOMINAL	4	.032 MHz			4.9 mm		CMOS		SECONDS	2 V	Timer or RTC	1.27 mm	R-PDSO-G8		Not Qualified	YES
PCF8563T-T	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		Not Qualified
PCF85063TP	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	8	HVSON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, HEAT SINK/SLUG, 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
PCF8593P	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	6 V	8		3/5	IN-LINE	DIP8,.3	Y	2.5 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	4.2 mm	8	7.62 mm			.1 MHz			9.5 mm	0	CMOS	.2 mA	1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T8		Not Qualified	YES	e4
PCF8593T-T	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	6 V	8			SMALL OUTLINE			2.5 V	85 Cel	-40 Cel		DUAL	1.75 mm	8	3.9 mm			.1 MHz			4.9 mm	0	CMOS	.2 mA		5 V		1.27 mm	R-PDSO-G8		Not Qualified
PCF8593P,112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	6 V			3/5	IN-LINE	DIP8,.3	Y	2.5 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	4.2 mm		7.62 mm			.032 MHz			9.5 mm		CMOS		1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T8		Not Qualified	YES	e4
PCF8523T	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE			1.2 V	85 Cel	-40 Cel		DUAL	1.75 mm		3.9 mm						4.9 mm	1	CMOS			3 V		1.27 mm	R-PDSO-G8
PCF8802AUG/AB	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	BUTT	8	VBCC	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V				CHIP CARRIER, VERY THIN PROFILE			1.6 V	85 Cel	-40 Cel		BOTTOM	.215 mm		1.14 mm	SEATED HGT-NOM					1.19 mm	1	CMOS			3 V			R-XBCC-B8
PCF85063AT	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
PCF85363ATT/A	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		DUAL	1.1 mm		3 mm						3 mm	1	CMOS			3.3 V		.65 mm	S-PDSO-G8
PCF85263ATT/A	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V	8			SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	Y	.9 V	85 Cel	-40 Cel		DUAL	1.1 mm	1	3 mm		0	.032768 MHz			3 mm	1	CMOS	.000885 mA	SECONDS	3.3 V		.65 mm	S-PDSO-G8			NO
PCF85263AT/A	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V	8			SMALL OUTLINE	SOP8,.25	Y	.9 V	85 Cel	-40 Cel		DUAL	1.75 mm	1	3.9 mm		0	.032768 MHz			4.9 mm	1	CMOS	.000885 mA	SECONDS	3.3 V		1.27 mm	R-PDSO-G8			NO
PCF8802AUG/ABZ	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	BUTT	8	VBCC	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V				CHIP CARRIER, VERY THIN PROFILE			1.6 V	85 Cel	-40 Cel		BOTTOM	.215 mm		1.14 mm	SEATED HGT-NOM					1.19 mm	1	CMOS			3 V			R-XBCC-B8
PCF8583T/F4	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		DUAL	2.65 mm		7.5 mm			.032 MHz			7.55 mm	0	CMOS			5 V		1.27 mm	R-PDSO-G8		Not Qualified
PCF8563PN	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	5.5 V			2/5	IN-LINE	DIP8,.3	Y	1.8 V	85 Cel	-40 Cel		DUAL	4.2 mm		7.62 mm			.032 MHz	40	250	9.5 mm	0	CMOS		SECONDS	2 V	Timer or RTC	2.54 mm	R-PDIP-T8		Not Qualified	YES
PCF85263ATT	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		DUAL	1.1 mm		3 mm						3 mm	1	CMOS			3.3 V		.65 mm	S-PDSO-G8
PCF85063AT/A	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
PCF85363ATT	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		DUAL	1.1 mm		3 mm						3 mm	1	CMOS			3.3 V		.65 mm	S-PDSO-G8
PCF8583P/F5	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	NICKEL PALLADIUM GOLD	DUAL	4.2 mm		7.62 mm			.032 MHz			9.5 mm	0	CMOS			5 V		2.54 mm	R-PDIP-T8		Not Qualified		e4
PT7C43390WE	Diodes Incorporated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V			3/5	SMALL OUTLINE	SOP8,.25	Y	1.3 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.75 mm		3.9 mm						4.9 mm	1	CMOS		SECONDS	3 V	Timer or RTC	1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e3
PT7C4363ZEE	Diodes Incorporated	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	8	HVSON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE			1.3 V	85 Cel	-40 Cel		DUAL	.8 mm		2 mm						2.995 mm	1				3 V		.5 mm	R-PDSO-N8

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.