TIMER, REAL TIME CLOCK Timers & Real-Time Clocks 2,400+

Reset All

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	Bus Compatibility	Terminal Pitch	JESD-30 Code	Moisture Sensitivity Level (MSL)	Qualification	Volatile	JESD-609 Code
RTC-72423A0:ROHS	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS/MUXED BUS	5.5 V				5	SMALL OUTLINE	SOP24,.5	N	4.5 V	85 Cel	-40 Cel	Tin/Bismuth (Sn/Bi)	DUAL	2.8 mm		7.9 mm	LG-MAX	4		10	260	16.3 mm		CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24		Not Qualified	YES	e6
RTC-72423:A0:ROHS	Toyocom U S A	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS/MUXED BUS	5.5 V				5	SMALL OUTLINE	SOP24,.5	N	4.5 V	85 Cel	-40 Cel	Tin/Bismuth (Sn/Bi)	DUAL	2.8 mm		7.9 mm	LG-MAX	4		10	260	16.3 mm		CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24		Not Qualified	YES	e6
ISL12020MIRZ-T7A	Renesas Electronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	20	HLSON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8				SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE	SOLCC20,.16,20	Y	2.7 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.3 mm	128K	4 mm		0	.032768 MHz	30	260	5.5 mm		CMOS	.5 mA	SECONDS	3 V			.5 mm	R-PDSO-N20	1		YES	e3
MCP79412-I/SN	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8	TS 16949		2/5	SMALL OUTLINE	SOP8,.23	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.75 mm	64	3.9 mm	ALSO OPERATES AT 100KHZ WITH 1.8 V NOMINAL	0	.032 MHz	30	260	4.9 mm	1	CMOS	3 mA	SECONDS	2.5 V	Timers or RTCs		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e3
MCP79410-I/ST	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8	TS 16949		2/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.25	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.2 mm	64	3 mm	ALSO OPERATES AT 100KHZ WITH 1.8 V NOMINAL	0	.032 MHz	40	260	4.4 mm	1	CMOS	3 mA	SECONDS	2.5 V	Timers or RTCs		.65 mm	R-PDSO-G8	1	Not Qualified	NO	e3
RV-8803-C7-32.768KHZ-3PPM-TA-QC	Micro Crystal Ag	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	8	SON	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	YES	SERIAL(I2C)	5.5 V		AEC-Q200			SMALL OUTLINE	SOLCC8,.06,35	Y	1.5 V	85 Cel	-40 Cel	Gold (Au)	DUAL	.8 mm		1.5 mm				40	260	3.2 mm	1	CMOS		1/100 SECOND	3 V		I2C	.9 mm	R-CDSO-N8			YES	e4
DS1339C-33T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				3.3	SMALL OUTLINE	SOP16,.4	Y	2.97 V	85 Cel	-40 Cel	MATTE TIN	DUAL	2.67 mm		7.495 mm			.032 MHz			10.285 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G16	1	Not Qualified	NO	e3
DS1339C-33#T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE			2.97 V	85 Cel	-40 Cel	MATTE TIN	DUAL	2.65 mm		7.5 mm			.032 MHz	30	260	10.3 mm	1	CMOS			3.3 V			1.27 mm	R-PDSO-G16				e3
MCP7940MT-I/SN	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8	TS 16949		2/5	SMALL OUTLINE	SOP8,.23	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.75 mm	64	3.9 mm		0	.032 MHz	30	260	4.9 mm	1	CMOS	.4 mA	SECONDS	2.5 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e3
DS1302	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, 3-WIRE	5.5 V				3/5	IN-LINE	DIP8,.3	N	2 V	70 Cel	0 Cel	TIN LEAD	DUAL	4.572 mm		7.62 mm	BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA		.032 MHz			9.375 mm	0	CMOS		SECONDS	3.3 V	Timers or RTCs		2.54 mm	R-PDIP-T8	1	Not Qualified	YES	e0
DS1302+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, 3-WIRE	5.5 V				3/5	IN-LINE	DIP8,.3	N	2 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	4.572 mm		7.62 mm	BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA		.032 MHz	30	260	9.375 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		2.54 mm	R-PDIP-T8	1	Not Qualified	YES	e3
ISL12020MIRZ-T	Renesas Electronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	20	HLSON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8				SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE	SOLCC20,.16,20	Y	2.7 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.3 mm	128K	4 mm		0	.032768 MHz	30	260	5.5 mm		CMOS	.5 mA	SECONDS	3 V			.5 mm	R-PDSO-N20	1		YES	e3
PCF85263ATT1/AJ	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	10	TSSOP	SQUARE	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V	8				SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP10,.19,20	Y	.9 V	85 Cel	-40 Cel		DUAL	1.1 mm	1	3 mm		0	.032768 MHz		260	3 mm	1	CMOS	.000885 mA	SECONDS	3.3 V			.5 mm	S-PDSO-G10	1		NO
ISL12057IBZ	Renesas Electronics	TIMER, REAL TIME CLOCK																				MATTE TIN								30	260											2			e3
PCF2123BS/1,512	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	16	HVQCCN	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	4.2 V				1.1/5.5	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC16,.12SQ,20	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	QUAD	1 mm		3 mm			.032 MHz		260	3 mm	1	CMOS		SECONDS	2 V	Timers or RTCs		.5 mm	S-PQCC-N16	3	Not Qualified	YES	e3
MCP79400-I/SN	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8	TS 16949		2/5	SMALL OUTLINE	SOP8,.23	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.75 mm	64	3.9 mm		0	.032 MHz	30	260	4.9 mm	1	CMOS	3 mA	SECONDS	2.5 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e3
PCF8523TK/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	8	HVSON	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE			1.2 V	85 Cel	-40 Cel		DUAL	1 mm		4 mm						4 mm	1	CMOS			3 V			.8 mm	S-PDSO-N8		Not Qualified
DS3232SN#-W	Analog Devices	TIMER, REAL TIME CLOCK		GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8				SMALL OUTLINE	SOP20,.4	Y	2.3 V	85 Cel	-40 Cel		DUAL	2.65 mm	236	7.5 mm		0	.032 MHz			12.8 mm	1	CMOS	.325 mA	SECONDS	3.3 V			1.27 mm	R-PDSO-G20			NO
M41T83RMY6F	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	18	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V	8		8	3/5	SMALL OUTLINE	SOP8,.4	Y	2.7 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	2.69 mm	7	7.62 mm			.4 MHz	30	240	11.61 mm	1	CMOS	.15 mA	1/100 SECOND	3 V	Timers or RTCs		1.27 mm	R-PDSO-G18	1	Not Qualified	NO	e3
Q41856471000100	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	20	SOJ	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE			1.7 V	85 Cel	-40 Cel		DUAL	1.5 mm		5.4 mm		0	.032 MHz			7 mm		CMOS			3 V			.65 mm	R-PDSO-J20
DS1375T/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	6	SON	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V				1.8/5	SMALL OUTLINE	SOLCC6,.11,37	Y	1.7 V	85 Cel	-40 Cel	TIN LEAD	DUAL						.032 MHz				1	CMOS		SECONDS	3.3 V	Timer or RTC		.95 mm	R-XDSO-N6	1	Not Qualified	YES	e0
DS1375T+T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	6	SON	RECTANGULAR	UNSPECIFIED	YES	I2C	5.5 V				1.8/5	SMALL OUTLINE	SOLCC6,.11,37	Y	1.7 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL						.032 MHz	30	260		1	CMOS		SECONDS	3.3 V	Timer or RTC		.95 mm	R-XDSO-N6	1	Not Qualified	YES	e3
MCP7940NT-I/MS	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V	8	TS 16949		2/5	SMALL OUTLINE	SOP8,.19	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.1 mm	64	3 mm		0	.032 MHz			3 mm	1	CMOS	.4 mA	SECONDS	2.5 V	Timer or RTC		.65 mm	S-PDSO-G8		Not Qualified	YES	e3
ISL1208IB8Z-TK	Renesas Electronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8				SMALL OUTLINE	SOP8,.25	Y	2.7 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.75 mm	2	3.9 mm		0	.032768 MHz	30	260	4.9 mm		CMOS	.004 mA	SECONDS	3 V			1.27 mm	R-PDSO-G8	1		NO	e3
M41T83SQA6F	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	16	HVQCCN	SQUARE	UNSPECIFIED	YES	SERIAL(I2C)	5.5 V	8		8	3.3/5	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC16,.16SQ,25	Y	3 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	QUAD	1 mm	7	4 mm			.4 MHz	30	260	4 mm	1	CMOS	.15 mA	1/100 SECOND	5 V	Timers or RTCs		.65 mm	S-XQCC-N16	1	Not Qualified	NO	e4
MCP7940NT-E/MS	Microchip Technology	TIMER, REAL TIME CLOCK	AUTOMOTIVE	GULL WING	8	SOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V	8	AEC-Q100		2/5	SMALL OUTLINE	SOP8,.19	Y	1.8 V	125 Cel	-40 Cel	MATTE TIN	DUAL	1.1 mm	64	3 mm		0	.032 MHz			3 mm	1	CMOS	.4 mA	SECONDS	2.5 V	Timer or RTC		.65 mm	S-PDSO-G8	1	Not Qualified	YES	e3
MCP79410T-I/MS	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V	8	TS 16949		2/5	SMALL OUTLINE	SOP8,.19	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.1 mm	64	3 mm	ALSO OPERATES AT 100KHZ WITH 1.8 V NOMINAL	0	.032 MHz	40	260	3 mm	1	CMOS	3 mA	SECONDS	2.5 V	Timers or RTCs		.65 mm	S-PDSO-G8	1	Not Qualified	NO	e3
MCP79411-I/SN	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8	TS 16949		2/5	SMALL OUTLINE	SOP8,.23	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.75 mm	64	3.9 mm	ALSO OPERATES AT 100KHZ WITH 1.8 V NOMINAL	0	.032 MHz	30	260	4.9 mm	1	CMOS	3 mA	SECONDS	2.5 V	Timers or RTCs		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e3
PCF8563T	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				2/5	SMALL OUTLINE	SSOP8,.25	Y	1.8 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm		3.9 mm			.032 MHz			4.9 mm	1	CMOS		SECONDS	2 V	Timer or RTC		1.27 mm	R-PDSO-G8		Not Qualified	YES	e4
DS1338U-33	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	N	3 V	85 Cel	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	1.1 mm		3 mm			.032 MHz	20	240	3 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		.65 mm	S-PDSO-G8	1	Not Qualified	NO	e0
DS1338U-33+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V				3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	N	3 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		3 mm		0	.032 MHz	30	260	3 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		.65 mm	S-PDSO-G8	1	Not Qualified	NO	e3
AB1805-T3	Abracon	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	16	HVQCCN	SQUARE	UNSPECIFIED	YES	I2C; SERIAL, 4-WIRE/3-WIRE	3.6 V				1.8/3.3	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC16,.12SQ,20	Y	1.5 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	QUAD	.9 mm		3 mm			.032 MHz	10	260	3 mm	1	CMOS		SECONDS	1.8 V	Timer or RTC		.5 mm	S-XQCC-N16	1	Not Qualified	NO	e4
DS12887	Maxim Integrated	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	TIN LEAD	DUAL	9.398 mm		15.24 mm	DAYLIGHT SAVINGS OPTION; SELECTABLE MOTOROLA/INTEL TIMING; 10 YEARS DATA RETENTION	8	.032 MHz			33.782 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	NO	e0
MCP79511-I/MS	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	10	TSSOP	SQUARE	PLASTIC/EPOXY	YES	SERIAL(SPI)	3.6 V	8	TS 16949			SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP10,.19,20	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.1 mm	64	3 mm	ALSO OPEARTES AT 1.8V MIN SUPPLY AT 3MHZ CLOCK FREQ	0	.032 MHz	40	260	3 mm	1	CMOS	5 mA	1/100 SECOND	3 V			.5 mm	S-PDSO-G10	2		NO	e3
PCF85363ATT/AJ	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,.2	Y	.9 V	85 Cel	-40 Cel		DUAL	1.1 mm	64	3 mm			.032768 MHz		260	3 mm		CMOS		SECONDS	3 V			.65 mm	S-PDSO-G8	1		YES
M41T00SM6E	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				3/5	SMALL OUTLINE	SOP8,.25	N	2.7 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm		3.9 mm		0	.032 MHz			4.9 mm	0	CMOS		SECONDS		Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e4
M41T81M6E	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	40	260	4.9 mm	1	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e4
BQ32002DR	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.6 V					SMALL OUTLINE			3 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm		3.9 mm			.032 MHz	30	260	4.9 mm		CMOS	.2 mA		3.3 V		I2C	1.27 mm	R-PDSO-G8	1			e4
DS1338Z-3/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.3 V				3	SMALL OUTLINE	SOP8,.25	N	2.7 V	85 Cel	-40 Cel	TIN LEAD	DUAL	1.75 mm		3.91 mm			.032 MHz			4.88 mm	1	CMOS		SECONDS	3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e0
DS1338Z-3+T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.3 V				3	SMALL OUTLINE	SOP8,.25	N	2.7 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.75 mm		3.91 mm			.032 MHz	30	260	4.88 mm	1	CMOS		SECONDS	3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e3
DS1340C-33#T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				3.3	SMALL OUTLINE	SOP16,.4	N	2.97 V	85 Cel	-40 Cel		DUAL	2.65 mm		7.5 mm				30	260	10.3 mm		CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G16	1	Not Qualified	NO
MCP7940MT-I/MNY	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	8	HVSON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8	TS 16949		2/5	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SOLCC8,.11,20	Y	1.8 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	.8 mm	64	2 mm		0	.032 MHz	40	260	3 mm	1	CMOS	.4 mA	SECONDS	2.5 V	Timer or RTC		.5 mm	R-PDSO-N8	1	Not Qualified	YES	e4
DS1511W	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.6 V				3.3	IN-LINE	DIP28,.6	Y	3 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.398 mm		15.24 mm		8	.032 MHz			38.862 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1511W+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.6 V				3.3	IN-LINE	DIP28,.6	Y	3 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	9.398 mm		15.24 mm		8	.032 MHz			38.862 mm	1	CMOS		SECONDS	3.3 V	Timers or RTCs		2.54 mm	R-PDIP-T28		Not Qualified	YES	e3
M41ST87WMX6	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.6 V			8	3/3.3	SMALL OUTLINE	SOP28,.4	Y	2.7 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	2.69 mm		7.62 mm			.032 MHz	30	250	17.96 mm	1	CMOS		1/100 SECOND	3 V	Timers or RTCs		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e4
MCP7940N-E/SN	Microchip Technology	TIMER, REAL TIME CLOCK	AUTOMOTIVE	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8	TS 16949		2/5	SMALL OUTLINE	SOP8,.23	Y	1.8 V	125 Cel	-40 Cel	MATTE TIN	DUAL	1.75 mm	64	3.9 mm		0	.032 MHz	30	260	4.9 mm	1	CMOS	.4 mA	SECONDS	2.5 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e3
PCF8523TK	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	8	HVSON	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE			1.2 V	85 Cel	-40 Cel		DUAL	1 mm		4 mm						4 mm	1	CMOS			3 V			.8 mm	S-PDSO-N8
MCP79400-I/MS	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	SQUARE	PLASTIC/EPOXY	YES	I2C	5.5 V	8	TS 16949		2/5	SMALL OUTLINE	SOP8,.19	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	1.1 mm	64	3 mm		0	.032 MHz	40	260	3 mm	1	CMOS	3 mA	SECONDS	2.5 V	Timer or RTC		.65 mm	S-PDSO-G8	1	Not Qualified	NO	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.