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Concern about i.MX6SL and PF3000 connection

Question asked by ko-hey on Dec 26, 2017
Latest reply on Dec 27, 2017 by Yuri Muhin

Hi all

 

I have concern about a connection of i.MX6SL and PF3000.

Specifically, connection of POR_B and RESETBMCU.

 

I think the signal's electrical characteristics don't suit each other.

Please give me NXP's opinion.

 

The max VoL of RESETBMCU is 0.4 x OVDD.

On the other hand, the max ViL of POR_B is 0.3 x OVDD.

 

When the PF3000 outputs from 0.3 x OVDD to 0.4 x OVDD, i.MX6SL can't detect it "Low”.

As a result, I guess PF3000 is not suit for i.MX6SL.

 

Q1.

Is above my understanding correct ?

 

Q2.

If Q1 is correct, could you give me the recommendation way to suit the spec ?

 

 

Add info:

I refer following thread too.

https://community.nxp.com/thread/440484

 

The attach is the image which electrical characteristics comes from datasheet.

 

 

Ko-hey

 

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