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 (tSRC), 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 (tSRC). The Reset Output (RST) is asserted after the Smart Reset input is held active for the selected tSRC delay time. The RSToutput remains asserted either until the SRinput goes to inactive logic level or the output reset pulse duration is fixed for tREC. The device fully operates over a broad VCC range from 2.0V to 5.5V.

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STMicroelectronics Supervisory Circuits 4 pin Smart Reset
Datasheet
2,853In Stock
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
STMicroelectronics Supervisory Circuits 4 pin Smart Reset
Datasheet
6,095In Stock
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
STMicroelectronics Supervisory Circuits 4 pin Smart Reset
Datasheet
4,180In Stock
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
STMicroelectronics Supervisory Circuits 4 pin Smart Reset
Datasheet
6,422In Stock
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
STMicroelectronics Supervisory Circuits 4 pin Smart Reset
Datasheet
1,520In Stock
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
STMicroelectronics Supervisory Circuits 4 pin Smart Reset
Datasheet
2,231In Stock
3,000Expected 6/8/2026
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
STMicroelectronics Supervisory Circuits CONDITIONING & INTERFACES
Datasheet
2,584In Stock
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