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

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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	Bus Compatibility	Terminal Pitch	JESD-30 Code	Moisture Sensitivity Level (MSL)	Qualification	Volatile	JESD-609 Code
MCP79411-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			3 mm	1	CMOS	3 mA	SECONDS	2.5 V	Timers or RTCs		.65 mm	S-PDSO-G8		Not Qualified	NO	e3
M48T35Y-70MH1F	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V				5	SMALL OUTLINE	SOP28,.5	N	4.5 V	70 Cel	0 Cel	TIN	DUAL	3.05 mm		8.56 mm		8	.032 MHz			18.1 mm	0	CMOS		SECONDS	5 V	Timers or RTCs		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e3
MCP7940M-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
MCP79511T-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	1		NO	e3
PCF2129AT/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	4.2 V					SMALL OUTLINE			1.2 V	85 Cel	-40 Cel		DUAL	2.65 mm		7.5 mm		0	.032 MHz			12.8 mm		CMOS			3 V			1.27 mm	R-PDSO-G20		Not Qualified
PCF2129AT	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
M41T00M6E	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	N	2 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm		3.9 mm			.032 MHz	40	260	4.9 mm		CMOS		SECONDS		Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e4
MCP79410T-I/SNVAO	Microchip Technology	TIMER, REAL TIME CLOCK		GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8	AEC-Q100; TS 16949			SMALL OUTLINE	SOP8,.25	Y	1.8 V	85 Cel	-40 Cel		DUAL	1.75 mm	64	3.9 mm		0	.032768 MHz			4.9 mm	1	CMOS		SECONDS	2.5 V			1.27 mm	R-PDSO-G8			NO
M41T83ZMY6F	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	2.38 V	85 Cel	-40 Cel	Matte Tin (Sn)	DUAL	2.69 mm	7	7.62 mm			.4 MHz	30	245	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
MCP79401-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
M48T08-100PC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8				IN-LINE	DIP28,.6	N	4.75 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm	8184	15.24 mm	10 YEARS DATA RETENTION; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; WRITE PROTECT VOLTAGE = 4.5V	8	.032 MHz			39.625 mm	0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
BQ32002D	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.6 V				3.3	SMALL OUTLINE	SOP8,.25	N	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	SECONDS	3.3 V	Timer or RTC	I2C	1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e4
DS1306N	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, 3-WIRE	5.5 V				3/5	IN-LINE	DIP16,.3	Y	2 V	85 Cel	-40 Cel	TIN LEAD	DUAL	4.572 mm		7.62 mm		0	.032 MHz			19.175 mm	0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T16	1	Not Qualified	YES	e0
DS1306N+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, 3-WIRE	5.5 V				3/5	IN-LINE	DIP16,.3	Y	2 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	4.572 mm		7.62 mm		0	.032 MHz	30	260	19.175 mm	0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T16	1	Not Qualified	YES	e3
DS1391U-3	Maxim Integrated	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	TIN LEAD	DUAL	1.1 mm		3 mm			.032 MHz			3 mm	1	CMOS		1/100 SECOND	3 V	Timer or RTC		.5 mm	S-PDSO-G10	1	Not Qualified	YES	e0
DS1391U-3+	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
PCF85063TP-ARD	NXP Semiconductors	TIMER, REAL TIME CLOCK																												NOT SPECIFIED	NOT SPECIFIED
DS1371U	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 2-WIRE/I2C	5.5 V				1.8/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	Y	1.7 V	85 Cel	-40 Cel	Tin/Lead (Sn85Pb15)	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		e0
DS1371U+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	TSSOP	SQUARE	PLASTIC/EPOXY	YES	SERIAL, 2-WIRE/I2C	5.5 V				1.8/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP8,.19	Y	1.7 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		3 mm			.032 MHz	30	260	3 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		.65 mm	S-PDSO-G8	1	Not Qualified		e3
MCP79410T-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
ISL12020MIRZ	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
PCF8523TS/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	14	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE			1.2 V	85 Cel	-40 Cel		DUAL	1.1 mm		4.4 mm						5 mm	1	CMOS			3 V			.65 mm	R-PDSO-G14		Not Qualified
DS1337C/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE			1.8 V	85 Cel	-40 Cel	TIN LEAD	DUAL	2.65 mm		7.5 mm			.032 MHz			10.3 mm	1	CMOS			3.3 V			1.27 mm	R-PDSO-G16	1	Not Qualified		e0
DS1337C#T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				1.5/5	SMALL OUTLINE	SOP16,.4	Y	1.8 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	2.65 mm		7.5 mm			.032 MHz	30	260	10.3 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G16	1	Not Qualified	YES	e3
RV-4162-C7-TA-QC-020	Micro Crystal Ag	TIMER, REAL TIME CLOCK		NO LEAD	8	SON	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	YES	SERIAL(I2C)	4.4 V					SMALL OUTLINE	SOLCC8,.06,35	Y	1.3 V	85 Cel	-40 Cel	GOLD	DUAL	.8 mm		1.5 mm				40	260	3.2 mm		CMOS	.0005 mA	1/10 SECOND	3 V			.9 mm	R-CDSO-N8			YES	e4
PCF8563TS/5	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		0	.032 MHz	30	260	3 mm	1	CMOS			2 V			.65 mm	R-PDSO-G8	1	Not Qualified		e4
PCF8583T/5,512	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	6 V	8			3/5	SMALL OUTLINE	SOP8,.4	Y	2.5 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm	256	7.5 mm			.032 MHz		260	7.55 mm	0	CMOS	.2 mA	1/100 SECOND	5 V	Timer or RTC		1.27 mm	R-PDSO-G8	2	Not Qualified	YES	e4
M41T82ZM6F	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V	8		8	3/5	SMALL OUTLINE	SOP8,.25	Y	2.38 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm	7	3.9 mm			.4 MHz		260	4.9 mm	1	CMOS	.15 mA	1/100 SECOND	3 V	Timers or RTCs		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e4
DP8573AV/NOPB	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V				3/5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	85 Cel	-40 Cel	MATTE TIN	QUAD	4.57 mm		11.51 mm	PRESCALED XTAL OSCILLATOR OUTPUT FOR RTC; POWER FAIL I/P FOR BUS LOCK-OUT	8		30	245	11.51 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	2A	Not Qualified	YES	e3
MCP79402-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
PCA21125T/Q900/1	NXP Semiconductors	TIMER, REAL TIME CLOCK	AUTOMOTIVE	GULL WING	14	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES		5.5 V					SMALL OUTLINE			1.3 V	125 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.1 mm		4.4 mm				30	260	5 mm	1	CMOS			3 V			.65 mm	R-PDSO-G14	1	Not Qualified		e4
RX6110SA:B0:PURESN	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C; SERIAL	5.5 V					SMALL OUTLINE			1.6 V	85 Cel	-40 Cel	TIN	DUAL	3.3 mm		5 mm		0			260	10.1 mm		CMOS			3 V			1.27 mm	R-PDSO-G14				e3
PCF8593T/1,118	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	6 V				3/5	SMALL OUTLINE	SOP8,.25	Y	2.5 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.75 mm		3.9 mm			.032 MHz	30	260	4.9 mm	0	CMOS		1/100 SECOND	3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e4
RV-4162-C7-32.768KHZ-20PPM-TA-QC	Micro Crystal Ag	TIMER, REAL TIME CLOCK		NO LEAD	8	SON	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	YES	I2C	4.4 V					SMALL OUTLINE	SOLCC8,.06,31	Y	1 V	85 Cel	-40 Cel	GOLD	DUAL	.8 mm		1.5 mm	ALSO REQUIRED 1.3V-4.4V SUPPLY FOR I2C BUS ACTIVE		.032768 MHz	40	260	3.2 mm		CMOS		SECONDS	3 V			.5 mm	R-PDSO-G8			NO	e4
DS1306EN	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	Y	2 V	85 Cel	-40 Cel	Tin/Lead (Sn85Pb15)	DUAL	1.1 mm		4.4 mm		0	.032 MHz	40	260	6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e0
DS1306EN+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	Y	2 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		4.4 mm		0	.032 MHz	30	260	6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e3
DS1340C-33+	Maxim Integrated	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	MATTE TIN	DUAL						.032 MHz	30	260			CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G16	1	Not Qualified	NO	e3
DS1340C-33	Maxim Integrated	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	TIN LEAD	DUAL	2.65 mm		7.5 mm			.032 MHz			10.3 mm		CMOS			3.3 V			1.27 mm	R-PDSO-G16	1	Not Qualified		e0
DS1340C-33#	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 (Sn) - annealed	DUAL	2.65 mm		7.5 mm			.032 MHz	30	260	10.3 mm		CMOS			3.3 V			1.27 mm	R-PDSO-G16	1	Not Qualified		e3
M48T08-150PC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8				IN-LINE	DIP28,.6	N	4.75 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm	8184	15.24 mm		8	.032 MHz			39.625 mm	0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
PCF85263ATT1/AZ	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
MCP7940M-I/P	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	5.5 V	8	TS 16949		2/5	IN-LINE	DIP8,.3	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	5.334 mm	64	7.62 mm		0	.032 MHz			9.271 mm	1	CMOS	.4 mA	SECONDS	2.5 V	Timer or RTC		2.54 mm	R-PDIP-T8		Not Qualified	YES	e3
PCF8523T/1	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		Not Qualified
DS1306EN/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	Y	2 V	85 Cel	-40 Cel	TIN LEAD	DUAL	1.1 mm		4.4 mm		0	.032 MHz			6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e0
DS1306EN+T&R	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP20,.25	Y	2 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.1 mm		4.4 mm		0	.032 MHz	30	260	6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e3
DS1339C-33	Maxim Integrated	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	TIN LEAD	DUAL	2.65 mm		7.5 mm			.032 MHz			10.3 mm	1	CMOS			3.3 V			1.27 mm	R-PDSO-G16	1	Not Qualified		e0
DS1339C-33#	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	2.65 mm		7.5 mm			.032 MHz	30	260	10.3 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G16		Not Qualified	NO	e3
DS1340Z-3	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 (Sn85Pb15)	DUAL	1.75 mm		3.9 mm			.032 MHz			4.9 mm		CMOS		SECONDS	3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e0

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.