GPIO: Problem leak current while default power up

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GPIO: Problem leak current while default power up

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neusch
Contributor II

pastedImage_0.png

Have the i.MX6 only internal 100k pull-up or additional a diode ?

Is it the only way to solve the problem, by use a lot of Level-Shifter or Switch with trie-status ?

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Mathias

current through 1K should be limited to 1-2mA

Best regards

igor

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igorpadykov
NXP TechSupport
NXP TechSupport

Hi Mathias

i.MX6 has esd protection diodes on pads.

>Is it the only way to solve the problem, by use a lot of Level-Shifter or Switch with trie-status ?

also one can try to set external MCU outputs as logic "0".

Best regards

igor

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neusch
Contributor II

Hi Igor,

that is correct. But i can't ensure this while power up.

pastedImage_1.png

Can you say something to this?

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283 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi Mathias

current through 1K should be limited to 1-2mA

Best regards

igor

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