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All Products > Semiconductors > Power Management ICs > Supervisory Circuits

STMicroelectronics SR1 Switch ICs

STMicroelectronics SR1 switch ics provide a useful feature which ensures 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 (i.e. neither fixed nor minimum reset pulse width is set) or the output reset pulse duration is fixed for tREC (i.e. factory-programmed). The device fully operates over a broad VCC range from 2.0V to 5.5V.
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STMicroelectronics SR1PAAU
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STMicroelectronics SR1CARU
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STMicroelectronics SR1HARU
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STMicroelectronics SR1PBBU
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STMicroelectronics SR1LARU
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STMicroelectronics SR1PARU
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