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SR1 4-Pin Smart Reset™ Switch

STMicroelectronics SR1 4-Pin Smart Reset™ Switch is designed to ensure that inadvertent short reset push-button closures do not cause system resets. This is done by implementing an extended Smart Reset input delay time (t_SRC), which ensures a safe reset and eliminates the need for a specific dedicated reset button. The SR1 has one Smart Reset input (SR) with preset delayed Smart Reset setup time (t_SRC). The Reset Output (RST) is asserted after the Smart Reset input is held active for the selected t_SRC delay time. The RSToutput remains asserted either until the SRinput goes to inactive logic level or the output reset pulse duration is fixed for t_REC. The device fully operates over a broad V_CC range from 2.0V to 5.5V.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (IDR) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Type	Mounting Style	Package/Case	Threshold Voltage	Number of Inputs Monitored	Output Type	Manual Reset	Watchdog Timers	Battery Backup Switching	Reset Delay Time	Supply Voltage - Max	Minimum Operating Temperature	Maximum Operating Temperature	Series	Packaging
	Supervisory Circuits 4 pin Smart Reset SR1PAAU STMicroelectronics 1: Rp22.933 6.080In Stock	Mfr. Part No. SR1PAAU Mouser Part No 511-SR1PAAU	STMicroelectronics	Supervisory Circuits 4 pin Smart Reset Learn More about STMicroelectronics stmicro sr1 switch ics	Datasheet	6.080In Stock	Cut Tape Rp22.933 Rp17.355 Rp15.943 Rp13.503 Rp12.879 Reel Rp12.861 MouseReel Available	Min.: 1 Mult.: 1 : 3.000			Voltage Supervisory	SMD/SMT	DFN-6	5.5 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup	7.5 s	5.5 V	- 40 C	+ 85 C	SR1	Reel, Cut Tape, MouseReel
	Supervisory Circuits 4 pin Smart Reset SR1LARU STMicroelectronics 1: Rp27.152 4.180In Stock	Mfr. Part No. SR1LARU Mouser Part No 511-SR1LARU	STMicroelectronics	Supervisory Circuits 4 pin Smart Reset Learn More about STMicroelectronics stmicro sr1 switch ics	Datasheet	4.180In Stock	Cut Tape Rp27.152 Rp20.548 Rp18.713 Rp16.530 View Reel Rp13.209 Rp15.539 Rp14.934 Rp14.273 Rp13.209 MouseReel Available	Min.: 1 Mult.: 1 : 3.000			Voltage Supervisory	SMD/SMT	DFN-6	5.5 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup	6 s	5.5 V	- 40 C	+ 85 C	SR1	Reel, Cut Tape, MouseReel
	Supervisory Circuits 4 pin Smart Reset SR1CARU STMicroelectronics 1: Rp28.069 2.853In Stock	Mfr. Part No. SR1CARU Mouser Part No 511-SR1CARU	STMicroelectronics	Supervisory Circuits 4 pin Smart Reset Learn More about STMicroelectronics stmicro sr1 switch ics	Datasheet	2.853In Stock	Cut Tape Rp28.069 Rp20.548 Rp18.529 Rp16.438 Reel Rp13.448 View Rp15.447 Rp14.842 Rp14.567 Rp13.264 MouseReel Available	Min.: 1 Mult.: 1 : 3.000			Voltage Supervisory	SMD/SMT	DFN-6	5.5 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup	1.5 s	5.5 V	- 40 C	+ 85 C	SR1	Reel, Cut Tape, MouseReel
	Supervisory Circuits 4 pin Smart Reset SR1PBBU STMicroelectronics 1: Rp28.069 1.394In Stock	Mfr. Part No. SR1PBBU Mouser Part No 511-SR1PBBU	STMicroelectronics	Supervisory Circuits 4 pin Smart Reset Learn More about STMicroelectronics stmicro sr1 switch ics	Datasheet	1.394In Stock	Cut Tape Rp28.069 Rp20.548 Rp18.713 Rp16.511 Reel Rp13.686 View Rp15.521 Rp14.934 Rp14.787 Rp13.227 MouseReel Available	Min.: 1 Mult.: 1 : 3.000			Voltage Supervisory	SMD/SMT	DFN-6	5.5 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup	7.5 s	5.5 V	- 40 C	+ 85 C	SR1	Reel, Cut Tape, MouseReel
	Supervisory Circuits 4 pin Smart Reset SR1HARU STMicroelectronics 1: Rp28.069 4.395In Stock	Mfr. Part No. SR1HARU Mouser Part No 511-SR1HARU	STMicroelectronics	Supervisory Circuits 4 pin Smart Reset	Datasheet	4.395In Stock	Cut Tape Rp28.069 Rp20.548 Rp18.713 Rp16.530 Reel Rp13.613 View Rp15.539 Rp14.934 Rp14.787 Rp13.081 MouseReel Available	Min.: 1 Mult.: 1 : 3.000			Voltage Supervisory	SMD/SMT	DFN-6	5.5 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup	4 s	5.5 V	- 40 C	+ 85 C	SR1	Reel, Cut Tape, MouseReel
	Supervisory Circuits 4 pin Smart Reset SR1PARU STMicroelectronics 1: Rp28.253 186In Stock	Mfr. Part No. SR1PARU Mouser Part No 511-SR1PARU	STMicroelectronics	Supervisory Circuits 4 pin Smart Reset Learn More about STMicroelectronics stmicro sr1 switch ics	Datasheet	186In Stock	Cut Tape Rp28.253 Rp20.731 Rp18.713 Rp16.585 View Reel Rp13.833 Rp15.576 Rp14.970 Rp14.787 Rp13.833 MouseReel Available	Min.: 1 Mult.: 1 : 3.000			Voltage Supervisory	SMD/SMT	DFN-6	5.5 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup	7.5 s	5.5 V	- 40 C	+ 85 C	SR1	Reel, Cut Tape, MouseReel
	Supervisory Circuits CONDITIONING & INTERFACES SR1UARU STMicroelectronics 1: Rp23.116 2.038In Stock 3.000On Order	Mfr. Part No. SR1UARU Mouser Part No 511-SR1UARU	STMicroelectronics	Supervisory Circuits CONDITIONING & INTERFACES Learn More about STMicroelectronics stmicro sr1 switch ics	Datasheet	2.038In Stock 3.000On Order	Cut Tape Rp23.116 Rp16.677 Rp15.099 Rp13.338 Reel Rp11.118 View Rp12.494 Rp11.998 Rp11.631 Rp10.494 MouseReel Available	Min.: 1 Mult.: 1 : 3.000			Voltage Supervisory	SMD/SMT	DFN-6	5.5 V	1 Input	Active Low, Open Drain	No Manual Reset	No Watchdog	No Backup	10 s	5.5 V	- 40 C	+ 85 C	SR1UARU	Reel, Cut Tape, MouseReel