COMMERCIAL Timers & Real-Time Clocks 1,183

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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	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
DS1742W-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V			3.3	IN-LINE	DIP24,.6	N	2.97 V	70 Cel	0 Cel	TIN LEAD	DUAL	8.51 mm		15.24 mm		8	.032 MHz			37.595 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		2.54 mm	R-PDIP-P24		Not Qualified	NO	e0
DS1306E	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	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	70 Cel	0 Cel	TIN LEAD	DUAL	1.1 mm		4.4 mm		0	.032 MHz		245	6.5 mm	0	CMOS		SECONDS	5 V	Timer or RTC		.65 mm	R-PDSO-G20	1	Not Qualified	YES	e0
DS1306E+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	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	70 Cel	0 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
M48T02-70PC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8		5	IN-LINE	DIP24,.6	N	4.75 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm	2040	15.24 mm		8	.032 MHz			34.545 mm	0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	NO	e3
DS1305E	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	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	70 Cel	0 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
DS1305E+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	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	70 Cel	0 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
DS1305E/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	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	70 Cel	0 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
DS1305E+T&R	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	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	70 Cel	0 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
DS3231S#-W	Maxim Integrated		COMMERCIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 2 WIRE/I2C				3.3	SMALL OUTLINE	SOP16,.4	Y		70 Cel	0 Cel	MATTE TIN	DUAL							30	260			CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G16	1	Not Qualified	NO	e3
M48T58Y-70PC1	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	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm	8184	15.24 mm		8	.032 MHz			39.625 mm	0	CMOS	50 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
CP82C54-10Z	Renesas Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V		16		IN-LINE			4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	6.35 mm		15.24 mm		8	10 MHz			31 mm	3	CMOS			5 V			2.54 mm	R-PDIP-T24		Not Qualified		e3
M48T02-150PC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8		5	IN-LINE	DIP24,.6	N	4.75 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm	2040	15.24 mm	10 YEARS DATA RETENTION; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; WRITE PROTECT VOLTAGE = 4.5V	8	.032 MHz			34.545 mm	0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	NO	e3
DS1302Z+TR/C07	Maxim Integrated		COMMERCIAL	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, FIXED PROTOCOL				3.3	SMALL OUTLINE	SOP8,.25	N		70 Cel	0 Cel	MATTE TIN	DUAL											CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G8	1	Not Qualified	YES	e3
DS9034PCX	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V			3.3/5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL					8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC			R-XDMA-U34	1	Not Qualified	NO	e0
DS9034PCX+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V			3.3/5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	4.5 V	70 Cel	0 Cel	GOLD	DUAL					8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC			R-XDMA-U34		Not Qualified	NO	e4
BQ4802LYDW	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3.3	SMALL OUTLINE	SOP28,.4	Y	2.7 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm		7.5 mm		8	.032 MHz	30	260	17.9 mm	1	CMOS	9 mA	SECONDS	3 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	YES	e4
CP82C54Z	Renesas Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V		16		IN-LINE			4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	6.35 mm		15.24 mm		8	8 MHz			31 mm	3	CMOS			5 V			2.54 mm	R-PDIP-T24		Not Qualified		e3
RTC72421A	Fox Electronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	18	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL	5.5 V			5	IN-LINE	DIP18,.3	N	4.5 V	70 Cel	-10 Cel	TIN LEAD	DUAL			7.62 mm						23.1 mm		CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T18		Not Qualified	YES	e0
RTC-72421A	Seiko Epson	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	18	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS/MUXED BUS	5.5 V			5	IN-LINE	DIP18,.3	N	4.5 V	70 Cel	-10 Cel		DUAL	4.2 mm		7.62 mm		4	.032 MHz	NOT SPECIFIED	NOT SPECIFIED		0	CMOS	.01 mA	SECONDS	5 V	Timer or RTC	8048; 8051; 8085	2.54 mm	R-PDIP-T18		Not Qualified	YES
M48T201V-85MH1F	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3.3	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	Y	3 V	70 Cel	0 Cel		DUAL	3.05 mm		8.56 mm	WATCHDOG TIMER	8	.032 MHz	30	260	18.1 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		.81 mm	R-PDSO-G44	3	Not Qualified	NO
M48T12-150PC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8		5	IN-LINE	DIP24,.6	N	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm	2040	15.24 mm	10 YEARS DATA RETENTION; ACCURACY 1 MIN/MONTH @ 25 DEGREE C; WRITE PROTECT VOLTAGE = 4.2V	8	.032 MHz			34.545 mm	0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	NO	e3
M48T35AV-10MH1F	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3.3	SMALL OUTLINE	SOP28,.5	N	3 V	70 Cel	0 Cel	Matte Tin (Sn)	DUAL	3.05 mm		8.56 mm		8	.032 MHz	30	245	18.1 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e3
M48T35Y-70PC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8		5	IN-LINE	DIP28,.6	N	4.75 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm	32760	15.24 mm		8	.032 MHz			39.625 mm	0	CMOS	50 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
M48T35Y-70MH1E	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
DS1305	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, 3-WIRE	5.5 V			3/5	IN-LINE	DIP16,.3	Y	2 V	70 Cel	0 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
DS1305+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	16	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	SERIAL, 3-WIRE	5.5 V			3/5	IN-LINE	DIP16,.3	Y	2 V	70 Cel	0 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
DS1685S-3	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V			3	SMALL OUTLINE	SOP24,.4		2.7 V	70 Cel	0 Cel	TIN LEAD	DUAL	2.65 mm		7.5 mm		8	.032 MHz		245	15.4 mm	1	CMOS		SECONDS	3 V	Timer or RTC		1.27 mm	R-PDSO-G24		Not Qualified	YES	e0
DS1685S-3+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	3.7 V			3	SMALL OUTLINE	SOP24,.4	Y	2.7 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	2.65 mm		7.5 mm		8	.032 MHz	30	260	15.4 mm	1	CMOS		SECONDS	3 V	Timer or RTC		1.27 mm	R-PDSO-G24	1	Not Qualified	YES	e3
DS12C887A	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		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
DS12C887A+	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
DS1302S-16	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V			3/5	SMALL OUTLINE	SOP16,.4	N	2 V	70 Cel	0 Cel	TIN LEAD	DUAL	2.65 mm		7.5 mm	BURST MODE RAM DATA TRANSFER; TIMEKEEPING CURRENT = 0.3UA		.032 MHz			10.3 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G16	1	Not Qualified	NO	e0
M48T12-70PC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8		5	IN-LINE	DIP24,.6	N	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.65 mm	2040	15.24 mm		8	.032 MHz			34.545 mm	0	CMOS	80 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		Not Qualified	NO	e3
BQ4802LYPWR	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3/3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.25	Y	2.7 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	1.2 mm		4.4 mm		8	.032 MHz	30	260	9.7 mm	1	CMOS	9 mA	SECONDS	3 V	Timer or RTC		.65 mm	R-PDSO-G28	1	Not Qualified	NO	e4
CP82C54-12Z	Renesas Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V		16		IN-LINE			4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	6.35 mm		15.24 mm		8	12 MHz			31 mm	3	CMOS			5 V			2.54 mm	R-PDIP-T24		Not Qualified		e3
DS9034I-PCX	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V				MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL					8	.032 MHz				0	CMOS			5 V				R-XDMA-U34		Not Qualified		e0
DS9034I-PCX+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V				MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL					8	.032 MHz				0	CMOS			5 V				R-XDMA-U34		Not Qualified		e3
M48T58-70PC1	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	50 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
DS1744P-70	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	28		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL				A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC			R-XDMA-U28		Not Qualified	NO	e0
DS1744P-70+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	2.3368 mm		23.495 mm		8	.032 MHz			25.019 mm	0	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-XDMA-U34		Not Qualified	NO	e3
DS1243Y-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				IN-LINE	DIP28,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.398 mm		15.24 mm		8				38.862 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-PDIP-P28	1	Not Qualified	NO	e0
DS1243Y-120+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				IN-LINE	DIP28,.6	N	4.5 V	70 Cel	0 Cel	Matte Tin (Sn) - annealed	DUAL	9.398 mm		15.24 mm		8				38.862 mm		CMOS		1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-PDIP-P28		Not Qualified	NO	e3
DS17485-5+	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	MATTE TIN	DUAL	5.08 mm		15.24 mm		8	.032 MHz	30	260	31.75 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24	1	Not Qualified	NO	e3
DS17485-5	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	5.08 mm		15.24 mm		8	.032 MHz			31.75 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24	1	Not Qualified	YES	e0
BQ4287MT-SB2	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, MUXED BUS	5.5 V			5	MICROELECTRONIC ASSEMBLY	DIP24,.6	Y	4.5 V	70 Cel	0 Cel		DUAL					8		NOT SPECIFIED	NOT SPECIFIED		1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-T24		Not Qualified	NO
M48T58Y-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	Matte Tin (Sn)	DUAL	3.05 mm		8.56 mm		8	.032 MHz	30	245	18.1 mm	0	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e3
M48T35AV-10MH1E	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3.3	SMALL OUTLINE	SOP28,.5	N	3 V	70 Cel	0 Cel	MATTE TIN	DUAL	3.05 mm		8.56 mm		8	.032 MHz			18.1 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e3
BQ4802LYPWRG4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3/3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.25	Y	2.7 V	70 Cel	0 Cel	NICKEL PALLADIUM GOLD	DUAL	1.2 mm		4.4 mm		8	.032 MHz	30	260	9.7 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		.65 mm	R-PDSO-G28	1	Not Qualified	NO	e4
DS3231S-C14	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	16	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V				SMALL OUTLINE			2.3 V	70 Cel	0 Cel	Tin/Lead (Sn/Pb)	DUAL	2.65 mm		7.5 mm			.032 MHz	20	240	10.3 mm	1	CMOS			3.3 V			1.27 mm	R-PDSO-G16	1	Not Qualified		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.