OTHER Timers & Real-Time Clocks 27

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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	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	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
RTC-4553A	Seiko Epson	TIMER, REAL TIME CLOCK	OTHER	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V	4	3/5	SMALL OUTLINE	SOP14,.3	N	2.7 V	70 Cel	-30 Cel	TIN LEAD	DUAL	3.3 mm	30	5 mm		.032 MHz			10.1 mm	0	CMOS	.1 mA	SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G14		Not Qualified	YES	e0
RTC-4553AA	Seiko Epson	TIMER, REAL TIME CLOCK	OTHER	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	SERIAL, 3-WIRE	5.5 V	4	3/5	SMALL OUTLINE	SOP14,.3	N	2.7 V	70 Cel	-30 Cel	TIN LEAD	DUAL	3.3 mm	30	5 mm		.032 MHz			10.1 mm	0	CMOS	.1 mA	SECONDS	5 V	Timer or RTC	1.27 mm	R-PDSO-G14		Not Qualified	YES	e0
DS1904L-F5	Maxim Integrated	TIMER, REAL TIME CLOCK	OTHER	NO LEAD	2		ROUND	METAL	YES	SERIAL, 1-WIRE	6 V			DISK BUTTON			2.8 V	70 Cel	-40 Cel	TIN LEAD	END				0	.032 MHz				0	CMOS			3.3 V			O-MEDB-N2	1	Not Qualified		e0
DS1904L-F5+	Maxim Integrated	TIMER, REAL TIME CLOCK	OTHER	NO LEAD	2		ROUND	METAL	YES	SERIAL, 1-WIRE	6 V			DISK BUTTON			2.8 V	70 Cel	-40 Cel	MATTE TIN	END				0	.032 MHz				0	CMOS			3.3 V			O-MEDB-N2		Not Qualified		e3
DS1904L-F5#	Analog Devices	TIMER, REAL TIME CLOCK	OTHER	NO LEAD	2		ROUND	METAL	YES	SERIAL, 1-WIRE	6 V			DISK BUTTON			2.8 V	70 Cel	-40 Cel		END					.032 MHz	NOT SPECIFIED	NOT SPECIFIED		0	CMOS						O-MEDB-N2		Not Qualified
BQ3287AMT-I	Texas Instruments	TIMER, REAL TIME CLOCK	OTHER	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, MUXED BUS	5.5 V		5	MICROELECTRONIC ASSEMBLY	DIP24,.6	Y	4.5 V	70 Cel	-20 Cel		DUAL				8		NOT SPECIFIED	NOT SPECIFIED		1	CMOS		SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-T24		Not Qualified	NO
BQ3287MT-I	Texas Instruments	TIMER, REAL TIME CLOCK	OTHER	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	PARALLEL, MUXED BUS	5.5 V		5	MICROELECTRONIC ASSEMBLY	DIP24,.6	Y	4.5 V	70 Cel	-20 Cel		DUAL				8		NOT SPECIFIED	NOT SPECIFIED		1	CMOS		SECONDS	5 V	Timer or RTC	2.54 mm	R-XDMA-T24		Not Qualified	NO
M41T256YMH7F	STMicroelectronics	TIMER, REAL TIME CLOCK	OTHER	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V		5	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	N	4.5 V	70 Cel	-25 Cel		DUAL	3.05 mm		8.56 mm	0	.032 MHz	10	260	18.1 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO
M41T256YMH7	STMicroelectronics	TIMER, REAL TIME CLOCK	OTHER	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V		5	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	N	4.5 V	70 Cel	-25 Cel		DUAL	3.05 mm		8.56 mm	0	.032 MHz			18.1 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO	e0
M41T256YMH7E	STMicroelectronics	TIMER, REAL TIME CLOCK	OTHER	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V		5	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	N	4.5 V	70 Cel	-25 Cel		DUAL	3.05 mm		8.56 mm	0	.032 MHz	10	260	18.1 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO
M41TC8025CMC7F	STMicroelectronics	TIMER, REAL TIME CLOCK	OTHER	GULL WING	14	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V		1.8/5	SMALL OUTLINE	SOP14,.3	Y	1.6 V	70 Cel	-45 Cel		DUAL	2.25 mm		5.3 mm		.032 MHz	NOT SPECIFIED	NOT SPECIFIED	10.15 mm	1	CMOS		SECONDS	3 V	Timers or RTCs	1.27 mm	R-PDSO-G14		Not Qualified	YES
M41T256YMH7TR	STMicroelectronics	TIMER, REAL TIME CLOCK	OTHER	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V		5	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	N	4.5 V	70 Cel	-25 Cel		DUAL	3.05 mm		8.56 mm	0	.032 MHz			18.1 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO	e0
M41T256YMT7F	STMicroelectronics	TIMER, REAL TIME CLOCK	OTHER	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V		5	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	N	4.5 V	70 Cel	-25 Cel	TIN/NICKEL PALLADIUM GOLD	DUAL	3.05 mm		8.56 mm		.032 MHz	NOT SPECIFIED	NOT SPECIFIED	18.1 mm		CMOS		1/100 SECOND	5 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO	e3/e4
M41T256YMT7E	STMicroelectronics	TIMER, REAL TIME CLOCK	OTHER	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V		5	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	N	4.5 V	70 Cel	-25 Cel	TIN/NICKEL PALLADIUM GOLD	DUAL	3.05 mm		8.56 mm		.032 MHz	NOT SPECIFIED	NOT SPECIFIED	18.1 mm		CMOS		1/100 SECOND	5 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO	e3/e4
M41T256YMT7	STMicroelectronics	TIMER, REAL TIME CLOCK	OTHER	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V		5	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	N	4.5 V	70 Cel	-25 Cel	TIN LEAD	DUAL	3.05 mm		8.56 mm		.032 MHz			18.1 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO	e0
M41T256YMT7TR	STMicroelectronics	TIMER, REAL TIME CLOCK	OTHER	GULL WING	44	SSOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V		5	SMALL OUTLINE, SHRINK PITCH	SOP44,.5,32	N	4.5 V	70 Cel	-25 Cel	TIN LEAD	DUAL	3.05 mm		8.56 mm		.032 MHz			18.1 mm	0	CMOS		1/100 SECOND	5 V	Timer or RTC	.81 mm	R-PDSO-G44		Not Qualified	NO	e0
PT8A2516TAE	Diodes Incorporated	TIMER, PROGRAMMABLE	OTHER	GULL WING	5	LSSOP	RECTANGULAR	PLASTIC/EPOXY	YES		5.5 V			SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			3.5 V	85 Cel	0 Cel		DUAL	1.25 mm		1.6 mm		.08 MHz			2.92 mm		CMOS			5 V		.95 mm	R-PDSO-G5
PT8A2516TAEX	Diodes Incorporated	TIMER, PROGRAMMABLE	OTHER	GULL WING	5	LSSOP	RECTANGULAR	PLASTIC/EPOXY	YES		5.5 V			SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			3.5 V	85 Cel	0 Cel		DUAL	1.25 mm		1.6 mm		.08 MHz			2.92 mm		CMOS			5 V		.95 mm	R-PDSO-G5
PT8A2515NEX	Diodes Incorporated	TIMER, PROGRAMMABLE	OTHER	THROUGH-HOLE	4	SIP	RECTANGULAR	PLASTIC/EPOXY	NO		5.5 V			IN-LINE			3.5 V	85 Cel	0 Cel		SINGLE			1.6 mm	0	.008 MHz			5.13 mm	0	CMOS			5 V		1.27 mm	R-PSIP-T4
PT8A2515TAEX	Diodes Incorporated	TIMER, PROGRAMMABLE	OTHER	GULL WING	5	LSSOP	RECTANGULAR	PLASTIC/EPOXY	YES		5.5 V			SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			3.5 V	85 Cel	0 Cel		DUAL	1.25 mm		1.6 mm	0	.008 MHz			2.92 mm	0	CMOS			5 V		.95 mm	R-PDSO-G5
PT8A2515TAE	Diodes Incorporated	TIMER, PROGRAMMABLE	OTHER	GULL WING	5	LSSOP	RECTANGULAR	PLASTIC/EPOXY	YES		5.5 V			SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			3.5 V	85 Cel	0 Cel		DUAL	1.25 mm		1.6 mm	0	.008 MHz			2.92 mm	0	CMOS			5 V		.95 mm	R-PDSO-G5
PT8A2516NEX	Diodes Incorporated	TIMER, PROGRAMMABLE	OTHER	THROUGH-HOLE	4	SIP	RECTANGULAR	PLASTIC/EPOXY	NO		5.5 V			IN-LINE			3.5 V	85 Cel	0 Cel		SINGLE	1.8 mm		3.6 mm		.08 MHz			5.13 mm		CMOS			5 V		1.27 mm	R-PSIP-T4
PT8A2515NE	Diodes Incorporated	TIMER, PROGRAMMABLE	OTHER	THROUGH-HOLE	4	SIP	RECTANGULAR	PLASTIC/EPOXY	NO		5.5 V			IN-LINE			3.5 V	85 Cel	0 Cel		SINGLE			1.6 mm	0	.008 MHz			5.13 mm	0	CMOS			5 V		1.27 mm	R-PSIP-T4
PT8A2516NE	Diodes Incorporated	TIMER, PROGRAMMABLE	OTHER	THROUGH-HOLE	4	SIP	RECTANGULAR	PLASTIC/EPOXY	NO		5.5 V			IN-LINE			3.5 V	85 Cel	0 Cel		SINGLE	1.8 mm		3.6 mm		.08 MHz			5.13 mm		CMOS			5 V		1.27 mm	R-PSIP-T4
PT8A2513NE	Diodes Incorporated	TIMER, PROGRAMMABLE	OTHER	THROUGH-HOLE	4	SIP	RECTANGULAR	PLASTIC/EPOXY	NO		5.5 V			IN-LINE			3.5 V	85 Cel	0 Cel		SINGLE			1.6 mm	0				5.13 mm	0	CMOS			4 V		1.27 mm	R-PSIP-T4
5P90005CDCGH	Renesas Electronics	TIMER, REAL TIME CLOCK	OTHER	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V			SMALL OUTLINE	SOP8,.25	N	2 V	85 Cel	0 Cel		DUAL	1.75 mm		3.9 mm		.032768 MHz			4.9 mm	1	CMOS	.3 mA	SECONDS			1.27 mm	R-PDSO-G8			NO
5P90005CDCGH8	Renesas Electronics	TIMER, REAL TIME CLOCK	OTHER	GULL WING	8	SOP	RECTANGULAR	PLASTIC/EPOXY	YES	I2C	5.5 V			SMALL OUTLINE	SOP8,.25	N	2 V	85 Cel	0 Cel		DUAL	1.75 mm		3.9 mm		.032768 MHz			4.9 mm	1	CMOS	.3 mA	SECONDS			1.27 mm	R-PDSO-G8			NO

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.