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	Maximum Output Clock Frequency	Power Supplies (V)	Package Style (Meter)	Package Equivalence Code	Interrupt Capability	Minimum Supply Voltage	Maximum 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
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	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	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	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	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	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
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	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	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	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
P8254-2	Rochester 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	TIN LEAD	DUAL				6 PROGRAMMABLE MODES	8					3	NMOS			5 V				R-PDIP-T24		Not Qualified		e0
BQ3285S-SB2	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	7 V				5	SMALL OUTLINE	SOP24,.4	Y	-.3 V	70 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm		7.5 mm		8	.032 MHz	30	260	15.4 mm	1	CMOS	15 mA	SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24	1	Not Qualified	NO	e4
BQ3285S-SB2G4	Texas Instruments	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	24	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V				5	SMALL OUTLINE	SOP24,.4	Y	4.5 V	70 Cel	NICKEL PALLADIUM GOLD	DUAL	2.65 mm		7.5 mm		8	.032 MHz	30	260	15.4 mm	1	CMOS		SECONDS	5 V	Timer or RTC		1.27 mm	R-PDSO-G24	1	Not Qualified	NO	e4
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	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
DS1643P-70	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34	QCCJ	RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	5.5 V				5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	4.5 V	70 Cel	TIN LEAD	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	1	Not Qualified	NO	e0
DS1643P-70+	Maxim Integrated	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	MATTE TIN	DUAL					8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC			R-XDMA-U34	1	Not Qualified	NO	e3
DS1744WP+120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	3.63 V				3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	2.97 V	70 Cel	MATTE TIN	DUAL					8	.032 MHz				0	CMOS		SECONDS	3.3 V	Timer or RTC			R-XDMA-U34		Not Qualified	NO	e3
DS1744WP-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	3.63 V				3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	2.97 V	70 Cel	TIN LEAD	DUAL				A POWERCAP MODULE CONTAINING CRYSTAL AND BATTERY REQUIRED	8	.032 MHz				0	CMOS		SECONDS	3.3 V	Timer or RTC			R-XDMA-U34		Not Qualified	NO	e0
DS1744WP-120+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	3.63 V				3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	2.97 V	70 Cel	Matte Tin (Sn) - annealed	DUAL	2.3368 mm		23.495 mm		8	.032 MHz			25.019 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC		1.27 mm	R-XDMA-U34		Not Qualified	NO	e3
M41T00CAPPC1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	I2C	5.5 V				3/5	IN-LINE	DIP24,.6	N	2.7 V	70 Cel	MATTE TIN	DUAL	9.65 mm		15.24 mm						34.545 mm		CMOS		SECONDS		Timer or RTC		2.54 mm	R-PDIP-T24	1	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	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	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		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	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
DS1642-150	Maxim Integrated		COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL					5	IN-LINE	DIP24,.6	N		70 Cel	Tin/Lead (Sn/Pb)	DUAL											CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T24		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		3/5	IN-LINE	DIP28,.6	Y	2.7 V	70 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	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
DS1746-70	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	IN-LINE	DIP32,.6	N	4.5 V	70 Cel	TIN LEAD	DUAL	9.27 mm		15.24 mm		8	.032 MHz			38.675 mm	0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-XDIP-P32	1	Not Qualified	NO	e0
DS1746-70+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	IN-LINE	DIP32,.6	N	4.5 V	70 Cel	Matte Tin (Sn) - annealed	DUAL	10.922 mm		15.24 mm		8	.032 MHz			43.053 mm		CMOS		SECONDS	5 V	Timers or RTCs		2.54 mm	R-PDIP-T32	1	Not Qualified	NO	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	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
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	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
D8254	Intel	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		16			IN-LINE			4.5 V	70 Cel	TIN LEAD	DUAL				6 PROGRAMMABLE MODES	8					3	NMOS	170 mA		5 V				R-GDIP-T24		Not Qualified		e0
D8254-2	Rochester Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	PARALLEL, DIRECT ADDRESS	5.5 V		16			IN-LINE			4.5 V	70 Cel		DUAL				6 PROGRAMMABLE MODES	8		NOT SPECIFIED	NOT SPECIFIED		3	NMOS			5 V				R-GDIP-T24		Not Qualified
MC146818P	NXP Semiconductors	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	24	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, MUXED BUS	5.5 V	8		.032768 MHz		IN-LINE			3 V	70 Cel	TIN LEAD	DUAL	5.08 mm	50	15.24 mm		8	4.2 MHz			31.75 mm	1	CMOS	3 mA		5 V		8085; 8048; 8049; MC3870; MC6805; MC146805; S2000; 8021	2.54 mm	R-PDIP-T24		Not Qualified		e0
AM9513APC	Rochester Electronics	TIMER, PROGRAMMABLE	COMMERCIAL	THROUGH-HOLE	40	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.25 V		16			IN-LINE			4.75 V	70 Cel		DUAL	5.715 mm		15.24 mm		16		NOT SPECIFIED	NOT SPECIFIED	52.324 mm	5	MOS			5 V			2.54 mm	R-PDIP-T40
CP82C54	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	TIN LEAD	DUAL	6.35 mm		15.24 mm		8	8 MHz			31 mm	3	CMOS			5 V			2.54 mm	R-PDIP-T24		Not Qualified		e0
DS1251WP-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	3.63 V				3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	2.97 V	70 Cel	TIN LEAD	DUAL				USE DS9034PCX TO ORDER POWERCAP	8						CMOS		1/100 SECOND	3.3 V	Timer or RTC			R-XDMA-U34		Not Qualified	NO	e0
DS1251WP-120+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	J INVERTED	34		RECTANGULAR	UNSPECIFIED	YES	PARALLEL, DIRECT ADDRESS	3.63 V				3.3	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N	2.97 V	70 Cel	Matte Tin (Sn) - annealed	DUAL	6.858 mm		23.495 mm	USE DS9034PCX TO ORDER POWERCAP	8				24.384 mm		CMOS		1/100 SECOND	3.3 V	Timer or RTC		1.27 mm	R-XDMA-U34		Not Qualified	NO	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	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
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	TIN LEAD	DUAL	1.2 mm		8 mm		8	.032 MHz			11.8 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC		.55 mm	R-PDSO-G28	3	Not Qualified	YES	e0
DS1511Y	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	IN-LINE	DIP28,.6	Y	4.5 V	70 Cel	TIN LEAD	DUAL	9.398 mm		15.24 mm		8	.032 MHz			38.862 mm	1	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
DS1511Y+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	IN-LINE	DIP28,.6	Y	4.5 V	70 Cel	Matte Tin (Sn) - annealed	DUAL	9.398 mm		15.24 mm		8	.032 MHz			38.862 mm	1	CMOS		SECONDS	5 V	Timers or RTCs		2.54 mm	R-PDIP-T28		Not Qualified	YES	e3
DS1554-70	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	IN-LINE	DIP32,.6	Y	4.5 V	70 Cel	TIN LEAD	DUAL	9.27 mm		15.24 mm	IT CAN ALSO OPERATE WITH 5V	8	.032 MHz			38.675 mm	0	CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-P32	1	Not Qualified	NO	e0
DS1554-70+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	IN-LINE	DIP32,.6	Y	4.5 V	70 Cel	Matte Tin (Sn) - annealed	DUAL	10.922 mm		15.24 mm		8	.032 MHz			43.053 mm		CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDIP-T32		Not Qualified	NO	e3
DS1556-70	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	MICROELECTRONIC ASSEMBLY	DIP32,.6	Y	4.5 V	70 Cel	TIN LEAD	DUAL	10.922 mm		15.24 mm		8	.032 MHz			43.053 mm		CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDMA-P32		Not Qualified	NO	e0
DS1556-70+	Analog Devices	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	MICROELECTRONIC ASSEMBLY	DIP32,.6	Y	4.5 V	70 Cel	Matte Tin (Sn) - annealed	DUAL	10.922 mm		15.24 mm		8	.032 MHz			43.053 mm		CMOS		SECONDS	5 V	Timer or RTC		2.54 mm	R-PDMA-P32		Not Qualified	NO	e3
DS1643P-120	Maxim Integrated		COMMERCIAL		34			PLASTIC/EPOXY		PARALLEL					5	MICROELECTRONIC ASSEMBLY	MODULE,34LEAD,1.0	N		70 Cel													CMOS		SECONDS	5 V	Timer or RTC					Not Qualified	NO
DS1646P-120+	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	MATTE TIN	DUAL	2.3368 mm		23.495 mm		8	.032 MHz	30	260	25.019 mm	0	CMOS			5 V				R-XDMA-U34		Not Qualified		e3
DS1646P-120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	NO LEAD	34		RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V					MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	TIN LEAD	DUAL					8	.032 MHz				0	CMOS			5 V				R-XDMA-N34	1	Not Qualified		e0
DS1646P+120	Maxim Integrated	TIMER, REAL TIME CLOCK	COMMERCIAL	NO LEAD	34		RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V					MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel	MATTE TIN	DUAL					8	.032 MHz				0	CMOS			5 V				R-XDMA-N34		Not Qualified		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.