Powering Psoc 5lp at 3.3v, 5v peripheral

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ChUn_1138526
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I'm looking through the data sheets on:

If i am powering the PSOC 5lp at a lower voltage than a peripheral device, where the peripheral device can apply a greater voltage to a PSOC 5lp GPIO pin, will that harm the PSOC 5LP?

For instance, if I power my 5lp at 3.3v and I attach it to a sensor, which outputs 5v digital signals, will the PSOC 5LP be able to handle a higher digital voltage than it is being powered with, provided that digital voltage is <=5v?

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Vison_Zhang
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First comment on KBA 750 replies posted 250 sign-ins

You can do that, but 5V powered digital sensor should be connected to SIO pins of PSoC5 instead of general GPIO.

AN60580 - SIO Tips and Tricks in PSoC® 3 / PSoC 5LP

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Vison_Zhang
Moderator
Moderator
Moderator
First comment on KBA 750 replies posted 250 sign-ins

You can do that, but 5V powered digital sensor should be connected to SIO pins of PSoC5 instead of general GPIO.

AN60580 - SIO Tips and Tricks in PSoC® 3 / PSoC 5LP

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