28 Timers & Real-Time Clocks 609

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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
M48T35AV-10MH6E	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3.3	SMALL OUTLINE	SOP28,.5	N	3 V	85 Cel	-40 Cel		DUAL	3.05 mm		8.56 mm		8		10	260	18.1 mm		CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	NO
M41T81MX6	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V			2.5/5	SMALL OUTLINE	SOP28,.4	Y	2 V	85 Cel	-40 Cel	NICKEL PALLADIUM GOLD	DUAL	2.69 mm		7.62 mm			.032 MHz			17.96 mm	1	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	NO	e4
BQ4802YDWR	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE	SOP28,.4	Y	4.5 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	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	NO	e4
DS1644-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL					8					0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-P28		Not Qualified	NO	e0
DS1644-120+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL					8					0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-P28		Not Qualified	NO	e3
M48T35Y-70MH1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V	8		5	SMALL OUTLINE	SOP28,.5	N	4.5 V	70 Cel	0 Cel		DUAL	3.05 mm	32760	8.56 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	18.1 mm	0	CMOS	50 mA	SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	NO	e0
M48T35Y-70MH6E	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE	SOP28,.5	N	4.5 V	85 Cel	-40 Cel		DUAL	3.05 mm		8.56 mm		8	.032 MHz	10	260	18.1 mm	0	CMOS		SECONDS	5 V	Timers or RTCs		1.27 mm	R-PDSO-G28		Not Qualified	NO
M48T35Y-70MH6F	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE	SOP28,.5	N	4.5 V	85 Cel	-40 Cel		DUAL	3.05 mm		8.56 mm		8	.032 MHz	10	260	18.1 mm	0	CMOS		SECONDS	5 V	Timers or RTCs		1.27 mm	R-PDSO-G28		Not Qualified	NO
BQ4802YDWRG4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE	SOP28,.4	Y	4.5 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	5 V	Timer or RTC		1.27 mm	R-PDSO-G28	1	Not Qualified	NO	e4
DS1744W-120IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.63 V			3.3	MICROELECTRONIC ASSEMBLY	DIP32,.6	N	2.97 V	85 Cel	-40 Cel	TIN LEAD	DUAL	10.42 mm		15.24 mm		8	.032 MHz			38.865 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		2.54 mm	R-XDMA-T28		Not Qualified	NO	e0
DS1744W-120IND+	Analog Devices	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.63 V			3.3	IN-LINE	DIP32,.6	N	2.97 V	85 Cel	-40 Cel	Matte Tin (Sn) - annealed	DUAL	10.668 mm		15.24 mm		8	.032 MHz			38.227 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
M48T35AV-10MH1	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		DUAL	3.05 mm		8.56 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	18.1 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	NO	e0
M48T35AV-10MH1TR	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	TIN LEAD	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		Not Qualified	NO	e0
M48T35AV-10MH6	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3.3	SMALL OUTLINE	SOP28,.5	N	3 V	85 Cel	-40 Cel	TIN LEAD	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		Not Qualified	NO	e0
M48T35AV-10MH6F	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3.3	SMALL OUTLINE	SOP28,.5	N	3 V	85 Cel	-40 Cel		DUAL	3.05 mm		8.56 mm		8		10	260	18.1 mm		CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	NO
M48T35AV-10MH6TR	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3.3	SMALL OUTLINE	SOP28,.5	N	3 V	85 Cel	-40 Cel	TIN LEAD	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		Not Qualified	NO	e0
DS1284Q	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	QUAD	4.57 mm		11.505 mm	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8	.032 MHz	20	240	11.505 mm	1	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	1	Not Qualified	YES	e0
DS1284Q+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	70 Cel	0 Cel	MATTE TIN	QUAD	4.57 mm		11.505 mm	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8	.032 MHz		245	11.505 mm	1	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	1	Not Qualified	YES	e3
DS1284Q+T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	70 Cel	0 Cel	MATTE TIN	QUAD	4.57 mm		11.505 mm	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8	.032 MHz		245	11.505 mm	1	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	1	Not Qualified	YES	e3
DS1284Q/T&R	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	CHIP CARRIER	LCC28,.5SQ	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	QUAD	4.57 mm		11.505 mm	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8	.032 MHz		245	11.505 mm	1	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	1	Not Qualified	YES	e0
DS1553-85+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	IN-LINE	DIP28,.6	Y	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.398 mm		15.24 mm		8	.032 MHz	30	260	38.862 mm	0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-P28		Not Qualified	NO	e3
M48T08Y-10MH1E	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	Timer or RTC		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e3
M48T08Y-10MH1F	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	Timer or RTC		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e3
M48T35-70PC1	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	Timers or RTCs		2.54 mm	R-PDIP-T28		Not Qualified	NO	e3
MM58167BV	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V				CHIP CARRIER			4.5 V	70 Cel	0 Cel		QUAD	4.57 mm		11.43 mm		8	.032 MHz			11.43 mm		CMOS			5 V			1.27 mm	S-PQCC-J28
BQ4802YPW	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			5	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.25	Y	4.5 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	5 V	Timer or RTC		.65 mm	R-PDSO-G28	1	Not Qualified	YES	e4
CS82C54	Renesas Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16		CHIP CARRIER			4.5 V	70 Cel	0 Cel	Tin/Lead (Sn/Pb)	QUAD	4.57 mm		11.505 mm		8	8 MHz	30	225	11.505 mm	3	CMOS			5 V			1.27 mm	S-PQCC-J28	1	Not Qualified		e0
CS82C5496	Renesas Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16		CHIP CARRIER			4.5 V	70 Cel	0 Cel	TIN LEAD	QUAD	4.57 mm		11.505 mm		8	8 MHz			11.505 mm	3	CMOS			5 V			1.27 mm	S-PQCC-J28	1	Not Qualified		e0
DS1643-100+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.02 mm		15.24 mm		8	.032 MHz			37.595 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-P28		Not Qualified	NO	e3
DS1643+100	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V				MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.02 mm		15.24 mm		8	.032 MHz			37.595 mm		CMOS			5 V			2.54 mm	R-XDMA-P28	3	Not Qualified		e3
DS1643-100	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.02 mm		15.24 mm		8	.032 MHz	20	240	37.595 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-XDMA-P28	1	Not Qualified	NO	e0
IS82C54Z96	Renesas Electronics	TIMER, PROGRAMMABLE	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16		CHIP CARRIER			4.5 V	85 Cel	-40 Cel	MATTE TIN	QUAD	4.57 mm		11.505 mm		8	8 MHz	30	245	11.505 mm	3	CMOS			5 V			1.27 mm	S-PQCC-J28	3			e3
M48T58Y-70MH1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V	8			SMALL OUTLINE	SOP28,.5	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	3.05 mm	8184	8.56 mm		8	.032 MHz			18.1 mm	0	CMOS	50 mA	SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	NO	e0
M48T58Y-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	Timer or RTC		1.27 mm	R-PDSO-G28	3	Not Qualified	NO	e3
M48T58Y-70MH1TR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V	8			SMALL OUTLINE	SOP28,.5	N	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	3.05 mm	8184	8.56 mm		8	.032 MHz			18.1 mm	0	CMOS	50 mA	SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G28		Not Qualified	NO	e0
BQ4802LYDWR	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3/3.3	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	NO	e4
DS1244Y-70-IND	Maxim Integrated	TIMER, REAL TIME CLOCK	INDUSTRIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.6 V			5	MICROELECTRONIC ASSEMBLY	DIP28,.6	N	3 V	85 Cel	-40 Cel	TIN LEAD	DUAL				ALSO OPERATES AT 5V SUPPLY	8					0	CMOS		1/100 SECOND	3.3 V	Timer or RTC		2.54 mm	R-XDMA-T28		Not Qualified	NO	e0
DS1286+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	MICROELECTRONIC ASSEMBLY	DIP28,.6	Y	4.5 V	70 Cel	0 Cel	MATTE TIN	DUAL	10.28 mm		15.24 mm	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8	.032 MHz			38.865 mm	1	CMOS		1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-XDMA-P28		Not Qualified	NO	e3
DS1286	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V			5	MICROELECTRONIC ASSEMBLY	DIP28,.6	Y	4.5 V	70 Cel	0 Cel	TIN LEAD	DUAL	10.28 mm		15.24 mm	ACCURACY 2 MIN/MONTH @ 25 DEGREE C; 1024 HZ FIXED O/P	8	.032 MHz			38.865 mm	1	CMOS		1/100 SECOND	5 V	Timer or RTC		2.54 mm	R-XDMA-P28		Not Qualified	NO	e0
M48T59Y-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	Y	4.5 V	70 Cel	0 Cel		DUAL	9.65 mm	8176	15.24 mm		8	.032 MHz	NOT SPECIFIED	245	39.625 mm	0	CMOS	50 mA	SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
CS82C54-12	Renesas Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16		CHIP CARRIER			4.5 V	70 Cel	0 Cel	TIN LEAD	QUAD	4.57 mm		11.505 mm		8	12 MHz			11.505 mm	3	CMOS			5 V			1.27 mm	S-PQCC-J28	1	Not Qualified		e0
DS1693	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS/MUXED BUS	4 V		16	3/5	IN-LINE	DIP28,.6	Y	2.7 V	70 Cel	0 Cel	TIN LEAD	DUAL	9.398 mm		15.24 mm	CAN ALSO OPERATE WITH 5V SUPPLY	8	.032 MHz			38.862 mm	1	CMOS		SECONDS	3 V	Timer or RTC		2.54 mm	R-PDIP-T28	1	Not Qualified	NO	e0
DS1693+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS/MUXED BUS	4 V		16		IN-LINE			2.7 V	70 Cel	0 Cel	MATTE TIN	DUAL	9.398 mm		15.24 mm	CAN ALSO OPERATE WITH 5V SUPPLY	8	.032 MHz			38.862 mm	1	CMOS			3 V			2.54 mm	R-PDIP-T28		Not Qualified		e3
CS82C54-1096	Renesas Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16		CHIP CARRIER			4.5 V	70 Cel	0 Cel	TIN LEAD	QUAD	4.57 mm		11.505 mm		8	10 MHz			11.505 mm	3	CMOS			5 V			1.27 mm	S-PQCC-J28	1	Not Qualified		e0
IS82C5496	Renesas Electronics	TIMER, PROGRAMMABLE	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16		CHIP CARRIER			4.5 V	85 Cel	-40 Cel	TIN LEAD	QUAD	4.57 mm		11.505 mm		8	8 MHz			11.505 mm	3	CMOS			5 V			1.27 mm	S-PQCC-J28	1	Not Qualified		e0
MC68B40P	Motorola	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.25 V		16		IN-LINE	DIP28,.6	Y	4.75 V	70 Cel	0 Cel	TIN LEAD	DUAL	5.08 mm		15.24 mm		8	2 MHz			36.83 mm	3				5 V		6800	2.54 mm	R-PDIP-T28		Not Qualified		e0
DP8570AV/NOPB	Texas Instruments	TIMER, REAL TIME CLOCK	INDUSTRIAL	J BEND	28	QCCJ	SQUARE	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		16	3/5	CHIP CARRIER	LDCC28,.5SQ	Y	4.5 V	85 Cel	-40 Cel	MATTE TIN	QUAD	4.57 mm		11.43 mm	4 PROGRAMMABLE MODES FOR TIMER; 4 SELECTABLE OSCILLATOR FREQUENCIES	8	10 MHz	30	245	11.43 mm	2	CMOS		1/100 SECOND	5 V	Timer or RTC		1.27 mm	S-PQCC-J28	2A	Not Qualified	YES	e3
DS1501WE+	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	TSSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V			3.3	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH	TSSOP28,.53,22	Y	3 V	70 Cel	0 Cel	MATTE TIN	DUAL	1.2 mm		8 mm		8	.032 MHz			11.8 mm	1	CMOS		SECONDS	3.3 V	Timers or RTCs		.55 mm	R-PDSO-G28	3	Not Qualified	YES	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.