Is it possible to power off Kinets KL26 while GPIO pins are pulled to +3V3 and VREGIN is connected with +5V?

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Is it possible to power off Kinets KL26 while GPIO pins are pulled to +3V3 and VREGIN is connected with +5V?

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chania
Contributor I

I want to be able to turn off the KL26 since I am only using it to debug another chip. However, some GPIO's of the KL26 are pulled up to the main supply voltage (which is stable +3V3). 

What happens to the GPIO's internally when the MCU is turned off? Are they entering a HIGH Z state?

Thanks for help.

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2 Replies

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miduo
NXP Employee
NXP Employee

Hi,

Please see this useful post at:https://community.nxp.com/thread/319853. Hope it is helpful.

B.R.

Fang

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chania
Contributor I

Thank you for the link, unfortunately I can't open it because I am not authorized :-(

2016-09-19 13_33_11-Unauthorized _ NXP Community.jpg

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