GPIO Docs Should be Updated ?

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ETRO_SSN583
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If a pin is configured as "High Impedance Digital", as an input, there should be

   

a caution about the pin potentially drawing input current if left floating.

   

 

   

If this is true docs to be affected, TRM, AN72382, AN60580, AN77900.

   

 

   

Bob, who is the contact inside Cypress to handle this ?

   

 

   

Regards, Dana.

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4 Replies
Anonymous
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        "If a pin is configured as "High Impedance Digital", as an input, there should be a caution about the pin potentially drawing input current if left floating." you mean drawing current from power?   
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ETRO_SSN583
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Drawing current from Vddd > PMOS out transistor > NMOS out transistor > VSSD.

   

 

   

Regards, Dana.

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Bob_Marlowe
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Contact for errors in manuals is Anush Shet ancy@cypress.com.

   

 

   

Bob

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ETRO_SSN583
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A discussion of floating CMOS inputs -

   

 

   

www.ti.com/general/docs/lit/getliterature.tsp

   

 

   

Regards, Dana.

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