NO LEAD Timers & Real-Time Clocks 260

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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	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	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
M41T82ZQA6F	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
M41T82RQA6E	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
M41T00AUDD1F	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	NO LEAD	16	VSON	RECTANGULAR	UNSPECIFIED	YES	I2C	3.6 V				3.3	SMALL OUTLINE, VERY THIN PROFILE	SOLCC16,.16,20	N	3 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	1 mm		4 mm			.032 MHz			5 mm		CMOS		SECONDS	3.3 V	Timer or RTC	.5 mm	R-XDSO-N16	1	Not Qualified	YES	e4
M41T93SQA6E	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	16	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 4 WIRE/SPI	5.5 V			8	3.3/5	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC16,.12SQ,20	Y	3 V	85 Cel	-40 Cel		QUAD	1 mm		4 mm			5 MHz	NOT SPECIFIED	NOT SPECIFIED	4 mm	1	CMOS		1/100 SECOND		Timers or RTCs	.65 mm	S-PQCC-N16		Not Qualified	NO
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
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
PCA8565AU/5BB/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	AUTOMOTIVE	NO LEAD	9	DIE	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V		AEC-Q100		2/5	UNCASED CHIP	DIE OR CHIP	Y	1.8 V	125 Cel	-40 Cel		UPPER					0	.032 MHz					CMOS		SECONDS	2 V	Timer or RTC		R-XUUC-N9		Not Qualified	NO
PCA8565BS/1,118	NXP Semiconductors	TIMER, REAL TIME CLOCK	AUTOMOTIVE	NO LEAD	10	HVSON	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE			1.8 V	125 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1 mm		3 mm			.032 MHz			3 mm	1	CMOS			2 V		.5 mm	S-PDSO-N10	1	Not Qualified		e4
PCA8565AU/5BB/1,01	NXP Semiconductors	TIMER, REAL TIME CLOCK	AUTOMOTIVE	NO LEAD	9	DIE	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V		AEC-Q100			UNCASED CHIP			1.8 V	125 Cel	-40 Cel		UPPER							NOT SPECIFIED	NOT SPECIFIED		1	CMOS			2 V			R-XUUC-N9
PCA8565AU/5BA/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	AUTOMOTIVE	NO LEAD	9	DIE	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V		AEC-Q100		2/5	UNCASED CHIP	DIE OR CHIP	Y	1.8 V	125 Cel	-40 Cel		UPPER					0	.032 MHz					CMOS		SECONDS	2 V	Timer or RTC		R-XUUC-N9		Not Qualified	NO
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
PCA8565BS	NXP Semiconductors	TIMER, REAL TIME CLOCK	AUTOMOTIVE	NO LEAD	10	HVSON	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE			1.8 V	125 Cel	-40 Cel		DUAL	1 mm		3 mm			.032 MHz			3 mm	1	CMOS			2 V		.5 mm	S-PDSO-N10		Not Qualified
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
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
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
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
935282253518	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
935299022118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	10	VSON	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE, VERY THIN PROFILE			.9 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	.5 mm		2.6 mm				30	260	2.6 mm	1	CMOS			3.3 V		.5 mm	S-PDSO-N10	1			e4
935302602115	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	10	VSON	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE, VERY THIN PROFILE			.9 V	85 Cel	-40 Cel		DUAL	.5 mm		2.6 mm						2.6 mm	1	CMOS			3.3 V		.5 mm	S-PDSO-N10
935299023118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	10	VSON	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V					SMALL OUTLINE, VERY THIN PROFILE			.9 V	85 Cel	-40 Cel		DUAL	.5 mm		2.6 mm						2.6 mm	1	CMOS			3.3 V		.5 mm	S-PDSO-N10
935293887005	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	12	DIE	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V					UNCASED CHIP			1.2 V	85 Cel	-40 Cel		UPPER						.032 MHz				1	CMOS			3 V			R-XUUC-N12
935304648115	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	10	VSON	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE, VERY THIN PROFILE			.9 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	.5 mm		2.6 mm				30	260	2.6 mm	1	CMOS			3.3 V		.5 mm	S-PDSO-N10	1			e4
935282254118	NXP Semiconductors	TIMER, REAL TIME CLOCK	AUTOMOTIVE	NO LEAD	10	HVSON	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE			1.8 V	125 Cel	-40 Cel		DUAL	1 mm		3 mm			.032 MHz			3 mm	1	CMOS			2 V		.5 mm	S-PDSO-N10
PCF8564AU/5GB/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	9	DIE	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V					UNCASED CHIP			1 V	85 Cel	-40 Cel		UPPER										1	CMOS			2 V			R-XUUC-N9		Not Qualified
PCF8523U/12AA/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	12	DIE	UNSPECIFIED	UNSPECIFIED	YES	I2C	5.5 V					UNCASED CHIP			1.2 V	85 Cel	-40 Cel		UPPER										1	CMOS			3 V			X-XUUC-N12		Not Qualified
PCF85063ATL	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	10	HVSON	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE			.9 V	85 Cel	-40 Cel		DUAL	.5 mm		2.6 mm						2.6 mm	1	CMOS			3.3 V		.5 mm	S-PDSO-N10
PCF8564AU/5GB/1,01	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	9	DIE	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V				2/5	UNCASED CHIP	WAFER	Y	1.8 V	85 Cel	-40 Cel		UPPER						.032 MHz				1	CMOS		SECONDS	2 V	Timer or RTC		R-XUUC-N9		Not Qualified	NO
PCF8564AU/5BB/1,01	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	9	DIE	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V				2/5	UNCASED CHIP	WAFER	Y	1.8 V	85 Cel	-40 Cel		UPPER						.032 MHz	NOT SPECIFIED	NOT SPECIFIED		1	CMOS		SECONDS	2 V	Timer or RTC		R-XUUC-N9		Not Qualified	NO
PCF85263ATL/A	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	10	HVSON	SQUARE	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V	8				SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SOLCC10,.11,20	Y	.9 V	85 Cel	-40 Cel		DUAL	.5 mm	1	2.6 mm		0	.032768 MHz			2.6 mm	1	CMOS	.000885 mA	SECONDS	3.3 V		.5 mm	S-PDSO-N10			NO
PCF8564AU/5BB/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	9	DIE	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V					UNCASED CHIP			1 V	85 Cel	-40 Cel		UPPER										1	CMOS			2 V			R-XUUC-N9		Not Qualified
PCF8564AU/5BD/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	9	DIE	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V					UNCASED CHIP			1.8 V	85 Cel	-40 Cel		UPPER	.2 mm		1.27 mm	SEATED HGT-NOM					1.9 mm	1	CMOS			2 V			R-XUUC-N9		Not Qualified
PCF8564AU/10AA/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	9	DIE	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V					UNCASED CHIP			1.8 V	85 Cel	-40 Cel		UPPER	.2 mm		1.27 mm	SEATED HGT-NOM					1.9 mm	1	CMOS			2 V			R-XUUC-N9		Not Qualified
PCF2123U/5GA/1,015	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	12	DIE	RECTANGULAR	UNSPECIFIED	YES	SERIAL, 3-WIRE	4.2 V				1.1/5.5	UNCASED CHIP	WAFER	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	UPPER						.032 MHz				1	CMOS		SECONDS	2 V	Timer or RTC		R-XUUC-N12	1	Not Qualified	YES	e3
PCF8564ACX9/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	9	DIE	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V					UNCASED CHIP			1 V	85 Cel	-40 Cel		UPPER										1	CMOS			2 V			R-XUUC-N9		Not Qualified
PCF8563BS/4	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	10	HVSON	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				2/5	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SOLCC10,.11,20	Y	1.8 V	85 Cel	-40 Cel		DUAL	1 mm		3 mm		0	.032 MHz			3 mm	1	CMOS		SECONDS	2 V	Timer or RTC	.5 mm	S-PDSO-N10		Not Qualified	YES
PCF2123U/10AA	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	12	DIE	RECTANGULAR	UNSPECIFIED	YES	SERIAL, 3-WIRE	5.5 V					UNCASED CHIP			1.1 V	85 Cel	-40 Cel		UPPER	.2 mm		1.449 mm	SEATED HGT-NOM					1.492 mm	1	CMOS			1.8 V			R-XUUC-N12
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
PCF2123U	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	12	DIE	RECTANGULAR	UNSPECIFIED	YES	SERIAL, 3-WIRE	5.5 V					UNCASED CHIP			1.1 V	85 Cel	-40 Cel		UPPER			1.449 mm			.032 MHz			1.492 mm	1	CMOS			1.6 V			R-XUUC-N12		Not Qualified
PCF8583U/5/F5	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD			UNSPECIFIED	UNSPECIFIED	YES	I2C	6 V					UNCASED CHIP			2.5 V	85 Cel	-40 Cel		UPPER						.032 MHz				0	CMOS			5 V			X-XUUC-N		Not Qualified
PCF2123U/12HA/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	12	DIE	RECTANGULAR	UNSPECIFIED	YES	SERIAL, 3-WIRE	5.5 V			8		UNCASED CHIP			1.1 V	85 Cel	-40 Cel		UPPER					0	.032 MHz				1	CMOS			2 V			R-XUUC-N12		Not Qualified
PCF2123U/10AA/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	12	DIE	RECTANGULAR	UNSPECIFIED	YES	SERIAL, 3-WIRE	5.5 V			8		UNCASED CHIP			1.1 V	85 Cel	-40 Cel		UPPER					0	.032 MHz				1	CMOS			2 V			R-XUUC-N12		Not Qualified
PCF2123U/10AA/1,00	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	12	DIE	RECTANGULAR	UNSPECIFIED	YES	SERIAL, 3-WIRE	4.2 V				1.1/5.5	UNCASED CHIP	WAFER	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	UPPER						.032 MHz				1	CMOS		SECONDS	2 V	Timer or RTC		R-XUUC-N12	1	Not Qualified	YES	e3
PCF2123U/12HA/1,00	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	12	DIE	RECTANGULAR	UNSPECIFIED	YES	SERIAL, 3-WIRE	4.2 V				1.1/5.5	UNCASED CHIP	WAFER	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	UPPER						.032 MHz				1	CMOS		SECONDS	2 V	Timers or RTCs		R-XUUC-N12	1	Not Qualified	YES	e3
PCF8564AUG/12HB/1V	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	9	DIE	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V					UNCASED CHIP			1.8 V	85 Cel	-40 Cel		UPPER						.032 MHz		260		1	CMOS			2 V			R-XUUC-N9
PCF2123U/5GA	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	12	DIE	RECTANGULAR	UNSPECIFIED	YES	SERIAL, 3-WIRE	5.5 V					UNCASED CHIP			1.1 V	85 Cel	-40 Cel		UPPER	.2 mm		1.449 mm	SEATED HGT-NOM					1.492 mm	1	CMOS			1.8 V			R-XUUC-N12

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.