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	Terminal Pitch	JESD-30 Code	Moisture Sensitivity Level (MSL)	Qualification	Volatile	JESD-609 Code
M48T201V-85MH1E	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	TIN/NICKEL PALLADIUM GOLD	DUAL	3.05 mm		8.56 mm	WATCHDOG TIMER	8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	18.1 mm	1	CMOS		SECONDS	3.3 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO	e3/e4
M48T37V-70MH1E	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V		8			SMALL OUTLINE, SHRINK PITCH			3 V	70 Cel		DUAL	3.05 mm		8.56 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	18.1 mm		CMOS			3.3 V		.81 mm	R-PDSO-G44		Not Qualified
M48T59V-70MH1E	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	Y	3 V	70 Cel		DUAL	3.05 mm		8.56 mm		8	.032 MHz	10	260	18.1 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC	1.27 mm	R-PDSO-G28		Not Qualified	NO
M48T35AY-70MH1TR	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 LEAD	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		Not Qualified	NO	e0
M48T35Y-70PM1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	IN-LINE	DIP28,.6	N	4.5 V	70 Cel	MATTE TIN	DUAL	9.53 mm		15.24 mm		8	.032 MHz			37.595 mm	0	CMOS		SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-P28		Not Qualified	NO	e3
M48T212V-85MH1	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	TIN LEAD	DUAL	3.05 mm		8.56 mm		8	.032 MHz			18.1 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO	e0
M48T251Y-70PM1TR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32		RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V					MICROELECTRONIC ASSEMBLY			4.5 V	70 Cel		DUAL	9.52 mm		18.415 mm		8				42.8 mm		CMOS			5 V		2.54 mm	R-PDMA-T32
M48T128Y-85PM1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	IN-LINE	DIP32,.8	N	4.5 V	70 Cel	MATTE TIN	DUAL	9.52 mm		15.24 mm		8	.032 MHz			42.8 mm	0	CMOS		SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-P32		Not Qualified	NO	e3
M48T59V-70MH1TR	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	Y	3 V	70 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
M48T59-70MH1TR	STMicroelectronics	TIMER, MEMORY REFRESH	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL					5	SMALL OUTLINE	SOP28,.5	Y		70 Cel	TIN LEAD	DUAL											CMOS		SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28		Not Qualified	NO	e0
M48T35V-10MH1TR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V		8			SMALL OUTLINE			3 V	70 Cel		DUAL	3.05 mm		8.4 mm		8				18.1 mm	1	CMOS			3.3 V		1.27 mm	R-PDSO-G28		Not Qualified
M48T201Y-70MH1F	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V				5	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	Y	4.5 V	70 Cel		DUAL	3.05 mm		8.56 mm	WATCHDOG TIMER	8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	18.1 mm	1	CMOS		SECONDS	5 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO
M48T35AY-70MH1	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 LEAD	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		Not Qualified	NO	e0
M48T86MH1F	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V				5	SMALL OUTLINE	SOP28,.5	Y	4.5 V	70 Cel		DUAL	3.05 mm		8.56 mm		8	.032 MHz	10	260	18.1 mm	1	CMOS		SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28		Not Qualified	NO
M48T201Y-70MH1E	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V				5	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	Y	4.5 V	70 Cel	TIN/NICKEL PALLADIUM GOLD	DUAL	3.05 mm		8.56 mm	WATCHDOG TIMER	8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	18.1 mm	1	CMOS		SECONDS	5 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO	e3/e4
M48T201V-85MHTR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V					SMALL OUTLINE, SHRINK PITCH			3 V	70 Cel		DUAL	3.05 mm		8.56 mm	WATCHDOG TIMER	8	.032 MHz			18.1 mm	1	CMOS			3.3 V		.81 mm	R-PDSO-G44		Not Qualified
M48T59Y-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	Y	4.5 V	70 Cel		DUAL	3.05 mm		8.56 mm		8	.032 MHz	10	260	18.1 mm	0	CMOS		SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28		Not Qualified	NO
M48T251V-85PM1TR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32		RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.6 V					MICROELECTRONIC ASSEMBLY			3 V	70 Cel		DUAL	9.52 mm		18.415 mm		8				42.8 mm		CMOS			3.3 V		2.54 mm	R-PDMA-T32
M48T128Y-70PM1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V	8			5	IN-LINE	DIP32,.8	N	4.5 V	70 Cel	MATTE TIN	DUAL	9.52 mm	65536	15.24 mm		8	.032 MHz			42.8 mm	0	CMOS		SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-P32	1	Not Qualified	NO	e3
M48T08Y-10MH1TR	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 LEAD	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		Not Qualified	NO	e0
M48T559YMH1TR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V	8			5	SMALL OUTLINE	SOP28,.5	Y	4.5 V	70 Cel	TIN LEAD	DUAL	3.05 mm	8176	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
M48T35-70PM1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	IN-LINE	DIP28,.6	N	4.75 V	70 Cel	TIN LEAD	DUAL	9.53 mm		15.24 mm		8				37.595 mm		CMOS		SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
M48T513V-85PL1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	36	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	3.6 V				3.3	MICROELECTRONIC ASSEMBLY	DIP36,.6	Y	3 V	70 Cel	Tin/Lead (Sn/Pb)	DUAL				WRITE PROTECT; 10 YEARS OF DATA RETENTION	8	.032 MHz				0	CMOS		SECONDS	3.3 V	Timer or RTC	2.54 mm	R-XDMA-T36		Not Qualified	NO	e0
M48T59Y-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	Y	4.5 V	70 Cel		DUAL	3.05 mm		8.56 mm		8	.032 MHz	10	260	18.1 mm	0	CMOS		SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28		Not Qualified	NO
M48T37Y-10MH1E	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		8			SMALL OUTLINE, SHRINK PITCH			4.5 V	70 Cel		DUAL	3.05 mm		8.56 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	18.1 mm		CMOS			5 V		.81 mm	R-PDSO-G44		Not Qualified
M48T513Y-70PM1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	36	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	IN-LINE	DIP32,.6	Y	4.5 V	70 Cel		DUAL	9.52 mm		15.24 mm		8		NOT SPECIFIED	NOT SPECIFIED	52.96 mm	0	CMOS		SECONDS	5 V	Timer or RTC	2.54 mm	R-PDIP-T36		Not Qualified	NO
M48T37V-10MH1TR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V		8		3.3	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	N	3 V	70 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	.81 mm	R-PDSO-G44		Not Qualified	NO	e0
M48T248V-70PM1TR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.6 V					IN-LINE			3 V	70 Cel		DUAL	9.52 mm		15.24 mm		8	.032 MHz			42.8 mm	0	CMOS			3.3 V		2.54 mm	R-PDIP-P32		Not Qualified
M48T212Y-85MH1TR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V					SMALL OUTLINE			4.5 V	70 Cel		DUAL					8	.032 MHz				0	CMOS			5 V			R-PDSO-G44		Not Qualified
M48T201Y-70MH1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V			.032768 MHz	5	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	Y	4.5 V	70 Cel	TIN LEAD	DUAL	3.05 mm		8.56 mm	WATCHDOG TIMER	8	.032 MHz			18.1 mm	1	CMOS	15 mA	SECONDS	5 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO	e0
M48T128V-70PM1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.6 V				3.3	IN-LINE	DIP32,.8	N	3 V	70 Cel	MATTE TIN	DUAL	9.52 mm		15.24 mm		8	.032 MHz			42.8 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC	2.54 mm	R-PDIP-P32		Not Qualified	NO	e3
M48T86MH1E	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V				5	SMALL OUTLINE	SOP28,.5	Y	4.5 V	70 Cel		DUAL	3.05 mm		8.56 mm		8	.032 MHz	10	260	18.1 mm	1	CMOS		SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28		Not Qualified	NO
M48T513Y-70PL1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	36	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, DIRECT ADDRESS	5.5 V				5	MICROELECTRONIC ASSEMBLY	DIP36,.6	Y	4.5 V	70 Cel	Tin/Lead (Sn/Pb)	DUAL				WRITE PROTECT; 10 YEARS OF DATA RETENTION	8	.032 MHz				0	CMOS		SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-T36		Not Qualified	NO	e0
M48T251Y-70PM1	STMicroelectronics	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	DUAL					8	.032 MHz				0	CMOS		1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-T32	1	Not Qualified	NO	e3
M48T129V-85PM1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	THROUGH-HOLE	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	3.6 V	8			3.3	IN-LINE	DIP32,.6	Y	3 V	70 Cel	MATTE TIN	DUAL	9.52 mm	65536	15.24 mm		8	.032 MHz			42.8 mm	0	CMOS		SECONDS	3.3 V	Timer or RTC	2.54 mm	R-PDIP-T32	1	Not Qualified	NO	e3
M48T59-70MH1	STMicroelectronics	TIMER, MEMORY REFRESH	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL					5	SMALL OUTLINE	SOP28,.5	Y		70 Cel	TIN LEAD	DUAL											CMOS		SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28		Not Qualified	NO	e0
M48T558YMH1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, MUXED BUS	5.5 V	8				SMALL OUTLINE	SOP28,.5	N	4.5 V	70 Cel	TIN LEAD	DUAL	3.05 mm	4096	8.4 mm		8				18.1 mm	0	MOS	50 mA	SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28		Not Qualified	NO	e0
M48T37Y-70MH1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	5.5 V		8		5	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	N	4.5 V	70 Cel		DUAL	3.05 mm		8.56 mm		8	.032 MHz	NOT SPECIFIED	NOT SPECIFIED	18.1 mm	0	CMOS		SECONDS	5 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO
M48T08Y-15MH1E	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		DUAL	3.05 mm		8.56 mm		8		10	260	18.1 mm		CMOS		SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28		Not Qualified	NO
M48T35Y-70HM1	STMicroelectronics		COMMERCIAL	GULL WING	28	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL					5	SMALL OUTLINE	SOP28,.5	N		70 Cel	Nickel/Palladium/Gold (Ni/Pd/Au)	DUAL											CMOS		SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28		Not Qualified	NO	e4
M48T212V-70MH1TR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	GULL WING	44	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	PARALLEL, DIRECT ADDRESS	3.6 V					SMALL OUTLINE			3 V	70 Cel		DUAL					8	.032 MHz				0	CMOS			3.3 V			R-PDSO-G44		Not Qualified
M48T58W-70PC1	STMicroelectronics		COMMERCIAL	THROUGH-HOLE	28	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL						IN-LINE	DIP28,.6	N		70 Cel	Tin/Lead (Sn/Pb)	DUAL											CMOS		SECONDS		Timer or RTC	2.54 mm	R-PDIP-T28		Not Qualified	NO	e0
M4T28-BR12SH1TR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	4		RECTANGULAR	UNSPECIFIED	NO		3 V					SPECIAL SHAPE				70 Cel		DUAL										1	CMOS			2.8 V			R-XDSS-P4		Not Qualified
M48T18-100MH1	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		8184		ACCURACY 1 MIN/MONTH @ 25 DEGREE C; WRITE PROTECT VOLTAGE = 4.2V; SNAPHAT HOUSING FOR XTAL & BATTERY	8	.032 MHz				0	CMOS	80 mA	SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G28		Not Qualified	NO	e0
M48T248Y-70PM1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	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	DUAL	9.52 mm		15.24 mm		8	.032 MHz			42.8 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC	2.54 mm	R-PDIP-P32	1	Not Qualified	NO	e3
M48T59Y-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	Y	4.5 V	70 Cel	TIN LEAD	DUAL	3.05 mm	8176	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
M48T212V-85MH1E	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		DUAL	3.05 mm		8.56 mm		8	.032 MHz	10	260	18.1 mm		CMOS		SECONDS	3.3 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO
M48T248Y-85PM1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	32	DIP	RECTANGULAR	PLASTIC/EPOXY	NO	PARALLEL, DIRECT ADDRESS	5.5 V					IN-LINE			4.5 V	70 Cel		DUAL	9.52 mm		15.24 mm		8	.032 MHz			42.8 mm	0	CMOS			5 V		2.54 mm	R-PDIP-P32		Not Qualified

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.