RECTANGULAR 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
DS3234S#	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 4-WIRE/SPI	5.5 V			8	3.3	SMALL OUTLINE	SOP20,.4	Y	2 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	2.65 mm		7.5 mm		0	.032 MHz	30	260	12.8 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G20	1	Not Qualified	NO	e3
DS1307N	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	5.5 V				5	IN-LINE	DIP8,.3	N	4.5 V	85 Cel	-40 Cel	TIN LEAD	DUAL	4.572 mm		7.62 mm			.032 MHz	20	240	9.375 mm	1	CMOS		SECONDS	5 V	Timers or RTCs		2.54 mm	R-PDIP-T8	1	Not Qualified	YES	e0
DS1307N+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	8	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	5.5 V				5	IN-LINE	DIP8,.3	N	4.5 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	4.572 mm		7.62 mm			.032 MHz	30	260	9.375 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T8	1	Not Qualified	YES	e3
DS1388Z-33	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.63 V				3.3	SMALL OUTLINE	SOP8,.25	Y	2.97 V	85 Cel	-40 Cel	TIN LEAD	DUAL	1.75 mm		3.9 mm			.032 MHz			4.9 mm		CMOS		1/100 SECOND	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G8		Not Qualified	NO	e0
DS1388Z-33+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.63 V				3.3	SMALL OUTLINE	SOP8,.25	Y	2.97 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.75 mm		3.9 mm			.032 MHz	30	260	4.9 mm		CMOS		1/100 SECOND	3.3 V	Timers or RTCs		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e3
DS3232SN-C01#T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE			2.3 V	85 Cel	-40 Cel		DUAL	2.67 mm		7.495 mm		0	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	12.82 mm	1	CMOS			3.3 V			1.27 mm	R-PDSO-G20		Not Qualified
STWD100PYW83F	STMicroelectronics	TIMER, PROGRAMMABLE	AUTOMOTIVE	GULL WING	5	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES		5.5 V					SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			2.7 V	125 Cel	-40 Cel	MATTE TIN	DUAL	1.1 mm		1.25 mm						2 mm		CMOS			5 V			.65 mm	R-PDSO-G5	1	Not Qualified		e3
DS1305EN	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	20	240	6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e0
DS1305EN+	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
PCF85263AT/AJ	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		260	4.9 mm	1	CMOS	.000885 mA	SECONDS	3.3 V			1.27 mm	R-PDSO-G8	1		NO
MCP7940N-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		0	.032 MHz			4.4 mm	1	CMOS	.4 mA	SECONDS	2.5 V	Timer or RTC		.65 mm	R-PDSO-G8		Not Qualified	YES	e3
DS1302Z	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE	SOP8,.25	N	2 V	70 Cel	0 Cel	TIN LEAD	DUAL	1.75 mm		3.9 mm	BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA		.032 MHz	20	240	4.9 mm	0	CMOS		SECONDS	3.3 V	Timers or RTCs		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e0
DS1302Z+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE	SOP8,.25	N	2 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	1.75 mm		3.9 mm	BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA		.032 MHz	30	260	4.9 mm		CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e3
PCF2127T/2Y	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	4.2 V				2/4	SMALL OUTLINE	SOP16,.4	Y	1.8 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD SILVER	DUAL	2.65 mm		7.5 mm			.032 MHz	30	260	10.3 mm	1	CMOS		SECONDS	2 V	Timers or RTCs		1.27 mm	R-PDSO-G16	3	Not Qualified	NO	e4
DS1340Z-33	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				3.3	SMALL OUTLINE	SOP8,.25	N	2.97 V	85 Cel	-40 Cel	TIN LEAD	DUAL	1.75 mm		3.9 mm			.032 MHz			4.9 mm		CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e0
DS1340Z-33+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				3.3	SMALL OUTLINE	SOP8,.25	N	2.97 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.75 mm		3.9 mm			.032 MHz	30	260	4.9 mm		CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e3
DS1337C	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+	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				1.8/5	SMALL OUTLINE	SOP16,.4	Y	1.8 V	85 Cel	-40 Cel	MATTE TIN	DUAL	2.67 mm		7.5 mm			.032 MHz			10.3 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G16	1	Not Qualified	YES	e3
DS1337C#	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-3032-C7-32.768KHZ-2.5PPM-TA-QC	Micro Crystal Ag	TIMER, REAL TIME CLOCK		NO LEAD	8	SON	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	YES	SERIAL(I2C)	5.5 V	8				SMALL OUTLINE	SOLCC8,.06,35	Y	1.3 V	85 Cel	-40 Cel	GOLD	DUAL	.8 mm	16384	1.5 mm	ALSO REQUIRED 1.4V-5.5V SUPPLY FOR I2C BUS ACTIVE		.032768 MHz	40	260	3.2 mm		CMOS		SECONDS	3 V			.9 mm	R-CDSO-N8			NO	e4
RTC-72423A3:ROHS	Seiko Epson		INDUSTRIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL	5.5 V				5	SMALL OUTLINE	SOP24,.5	N	4.5 V	85 Cel	-40 Cel	TIN BISMUTH	DUAL	2.8 mm		7.9 mm	LG-MAX	4			260	16.3 mm		CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24		Not Qualified	YES	e6
RTC-72423:A3:ROHS	Toyocom U S A		INDUSTRIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL	5.5 V				5	SMALL OUTLINE	SOP24,.5	N	4.5 V	85 Cel	-40 Cel	TIN BISMUTH	DUAL	2.8 mm		7.9 mm	LG-MAX	4			260	16.3 mm		CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24		Not Qualified	YES	e6
M41ST87WMX6TR	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	3.6 V				3/3.3	SMALL OUTLINE	SOP28,.4	Y	2.7 V	85 Cel	-40 Cel	MATTE TIN	DUAL	2.69 mm		7.62 mm			.032 MHz	30	260	17.96 mm	1	CMOS		1/100 SECOND	3 V	Timers or RTCs		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e3
RV-3032-C7-32.768KHZ2.5PPM-TA-QA	Micro Crystal Ag	TIMER, REAL TIME CLOCK		NO LEAD	8	SON	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	YES	SERIAL(I2C)	5.5 V	8	AEC-Q200			SMALL OUTLINE	SOLCC8,.06,35	Y	1.3 V	85 Cel	-40 Cel	GOLD	DUAL	.8 mm	16384	1.5 mm	ALSO REQUIRED 1.4V-5.5V SUPPLY FOR I2C BUS ACTIVE		.032768 MHz	40	260	3.2 mm		CMOS		SECONDS	3 V			.9 mm	R-CDSO-N8			NO	e4
MC14536BDWG	Onsemi	TIMER, PROGRAMMABLE	MILITARY	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES		18 V					SMALL OUTLINE			3 V	125 Cel	-55 Cel	MATTE TIN	DUAL	2.65 mm		7.5 mm			2 MHz	30	260	10.3 mm	1	CMOS			5 V			1.27 mm	R-PDSO-G16	3	Not Qualified		e3
PCF8563TD	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		DUAL						.032 MHz	NOT SPECIFIED	NOT SPECIFIED		0	CMOS		SECONDS	2 V	Timer or RTC		.635 mm	R-PDSO-G8		Not Qualified	YES
RTC-8564JE:B0:ROHS	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	20	LSOJ	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				1.8/5	SMALL OUTLINE, LOW PROFILE	SOJ20,.24,25	Y	1.8 V	85 Cel	-40 Cel	TIN SILVER	DUAL	1.5 mm		5.4 mm			.4 MHz		260	7 mm		CMOS	.0008 mA	SECONDS	3 V	Timers or RTCs		.65 mm	R-PDSO-J22		Not Qualified	YES	e2
BQ32000D	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		0	.032 MHz	30	260	4.9 mm		CMOS		SECONDS	3.3 V	Timer or RTC	I2C	1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e4
MCP79410T-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
PCF2131TFY	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	16	HVSON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SOLCC16,.14,20	Y	3.3 V	85 Cel	-40 Cel		DUAL	1.5 mm		3.5 mm	also operates with 0.5 mhz @ 1.2v min supply		6.5 MHz		260	4.5 mm	1	CMOS	.8 mA	1/100 SECOND				.5 mm	R-PDSO-N16	3		NO
M4T32-BR12SH1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	4		RECTANGULAR	UNSPECIFIED	NO							SPECIAL SHAPE				70 Cel	0 Cel	TIN	DUAL										1	CMOS			2.8 V				R-XDSS-P4		Not Qualified		e3
DS1683S+T&R	Analog Devices	TIMER, PROGRAMMABLE	INDUSTRIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				3/5	SMALL OUTLINE	SOP8,.25	Y	2.5 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	1.75 mm		3.9 mm			.4 MHz	30	260	4.9 mm		CMOS		SECONDS		Timers or RTCs		1.27 mm	R-PDSO-G8	1	Not Qualified	NO	e3
DS1302S/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE	SOP8,.3	N	2 V	70 Cel	0 Cel	TIN LEAD	DUAL	2.13 mm		5.285 mm	BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA		.032 MHz			5.31 mm	0	CMOS		SECONDS	3.3 V	Timers or RTCs		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e0
DS1302S+T&R	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE	SOP8,.3	N	2 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	2.13 mm		5.285 mm	BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA		.032 MHz	30	260	5.31 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e3
RTC-8564JE:BB:ROHS	Seiko Epson	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	20	SOJ	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE			1.8 V	85 Cel	-40 Cel	TIN SILVER	DUAL	1.5 mm		5.4 mm					260	7 mm		CMOS			3 V			.65 mm	R-PDSO-J20				e2
PCF8583T/5,518	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
DS1305EN+T&R/C01	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	20	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V					SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			2 V	85 Cel	-40 Cel		DUAL	1.1 mm		4.4 mm						6.5 mm		CMOS			5 V			.65 mm	R-PDSO-G20	1
DS12887A	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; RAM CLEAR I/P	8	.032 MHz			33.782 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24	1	Not Qualified	NO	e0
DS12887A+	Analog Devices	TIMER, PROGRAMMABLE	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	Matte Tin (Sn) - annealed	DUAL	9.398 mm		15.24 mm		8	.032 MHz			33.782 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	NO	e3
PCF8563T/F4	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	NICKEL PALLADIUM GOLD	DUAL	1.75 mm		3.9 mm		0	.032 MHz	30	260	4.9 mm	1	CMOS		SECONDS	2 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e4
STWD100YNYWY3F	STMicroelectronics	TIMER, PROGRAMMABLE	AUTOMOTIVE	GULL WING	5	LSSOP	RECTANGULAR	PLASTIC/EPOXY	YES		5.5 V		AEC-Q100			SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			2.7 V	125 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	1.45 mm		1.6 mm		0			260	2.9 mm	0	CMOS			5 V			.95 mm	R-PDSO-G5	1			e4
PCF8523TS/1,112	NXP Semiconductors	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	14	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				1.2/5.5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP14,.25	Y	1.2 V	85 Cel	-40 Cel		DUAL	1.1 mm		4.4 mm			.032 MHz		260	5 mm	1	CMOS		SECONDS	3 V	Timer or RTC		.65 mm	R-PDSO-G14	1	Not Qualified	YES
DS1302S	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE	SOP8,.3	N	2 V	70 Cel	0 Cel	TIN LEAD	DUAL	2.13 mm		5.285 mm	BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA		.032 MHz	20	240	5.31 mm	0	CMOS		SECONDS	3.3 V	Timers or RTCs		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e0
DS1302S+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V				3/5	SMALL OUTLINE	SOP8,.3	N	2 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	2.13 mm		5.285 mm	BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA		.032 MHz	30	260	5.31 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e3
MCP7940NT-I/MNY	Microchip Technology	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	8	HVSON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V	8	AEC-Q100		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
M41T83SMY6F	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	18	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL(I2C)	5.5 V	8		8	3.3/5	SMALL OUTLINE	SOP8,.4	Y	3 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	5 V	Timers or RTCs		1.27 mm	R-PDSO-G18	1	Not Qualified	NO	e3
PCF2129T/2	NXP Semiconductors	TIMER, MEMORY REFRESH	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			.032 MHz			10.3 mm	1	CMOS			2 V			1.27 mm	R-PDSO-G16
RV-8803-C7TAQC	Micro Crystal Ag	TIMER, REAL TIME CLOCK	INDUSTRIAL	NO LEAD	8	SON	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V					SMALL OUTLINE			1.5 V	85 Cel	-40 Cel	GOLD OVER NICKEL	DUAL	.8 mm		1.5 mm		0		40	260	3.2 mm		CMOS			3 V			.9 mm	R-PDSO-N8	1			e4

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.