CY8C6136BZI-F34 : VDDUSB pin processing when USB is not used

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MiNe_85951
Level 7
Level 7
Distributor - TED (Japan)
50 likes received 500 replies posted 50 solutions authored

Dear Sirs and Madams,

 

I'm reviewing the datasheet, TRM and application notes to review the PSoC6 hardware.

Which is recommended for handling the VDDUSB terminal when the PSoC 6 USB is not used?

 

1. Page 38 of PSoC6 MCU : CY8C61x6, CY8C61x7 datasheet

https://www.cypress.com/file/385931/download

 MaMi_1205306_0-1638164700119.png

2. Page 4 of AN218241

https://www.cypress.com/file/385701/download

MaMi_1205306_1-1638164863836.pngMaMi_1205306_2-1638164883734.png

 

The data sheet can be read as recommending applying a voltage of 1.7V to 3.6V, however the application note recommends floating.

 

Regards,

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1 Solution
RodolfoGL
Employee
Employee
250 solutions authored 250 sign-ins 5 comments on KBA

If USB pins are not used as USB Dp/Dn or GPIOs -> Floating

If USB pins are used as GPIOs -> 1.7V to 3.6V

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2 Replies
RodolfoGL
Employee
Employee
250 solutions authored 250 sign-ins 5 comments on KBA

If USB pins are not used as USB Dp/Dn or GPIOs -> Floating

If USB pins are used as GPIOs -> 1.7V to 3.6V

MiNe_85951
Level 7
Level 7
Distributor - TED (Japan)
50 likes received 500 replies posted 50 solutions authored

We understand from your explanation.

The problem has been cleared.

Thanks,

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