4 Timers & Real-Time Clocks 11

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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	Package Style (Meter)	Interrupt Capability	Minimum Supply Voltage	Maximum Operating Temperature	Minimum Operating Temperature	Terminal Finish	Terminal Position	Maximum Seated Height	Width	External Data Bus Width	Maximum Clock Frequency	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length	No. of Timers	Technology	Nominal Supply Voltage	Terminal Pitch	JESD-30 Code	Qualification	Volatile	JESD-609 Code
M4T28-BR12SH1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	4		RECTANGULAR	UNSPECIFIED	NO		3 V	SPECIAL SHAPE			70 Cel	0 Cel	NICKEL GOLD	DUAL								1	CMOS	2.8 V		R-XDSS-P4	Not Qualified		e4
M4T32-BR12SH6	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	PIN/PEG	4		RECTANGULAR	UNSPECIFIED	NO	SERIAL			N		85 Cel	-40 Cel		DUAL	8.128 mm	17.653 mm	0	.032768 MHz	40	260	21.463 mm		CMOS	2.8 V		R-XDSS-P4	Not Qualified	NO
M4T32-BR12SH6TR	STMicroelectronics	TIMER, REAL TIME CLOCK	INDUSTRIAL	PIN/PEG	4		RECTANGULAR	UNSPECIFIED	NO			SPECIAL SHAPE			85 Cel	-40 Cel		DUAL								1	CMOS	2.8 V		R-XDSS-P4	Not Qualified
M4T32-BR12SH1	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	4		RECTANGULAR	UNSPECIFIED	NO			SPECIAL SHAPE			70 Cel	0 Cel	TIN	DUAL								1	CMOS	2.8 V		R-XDSS-P4	Not Qualified		e3
M4T32-BR12SH1TR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	4		RECTANGULAR	UNSPECIFIED	NO			SPECIAL SHAPE			70 Cel	0 Cel		DUAL					NOT SPECIFIED	NOT SPECIFIED		1	CMOS	2.8 V		R-XDSS-P4	Not Qualified
M4T28-BR12SH1TR	STMicroelectronics	TIMER, REAL TIME CLOCK	COMMERCIAL	PIN/PEG	4		RECTANGULAR	UNSPECIFIED	NO		3 V	SPECIAL SHAPE			70 Cel	0 Cel		DUAL								1	CMOS	2.8 V		R-XDSS-P4	Not Qualified
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
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

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.