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April 21, 2026
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Voltage information on PA0 for STM32N657X0H3Q

  • April 21, 2026
  • 2 replies
  • 97 views

Hello Team, 

We are using STM32N657X0H3Q for one of our application, while looking for the voltage level information for pins, we did not get any information for PA0 pin for the controller, specifically i am referring the notes column in pin description section. 
I hope you are getting my question. 

 

Regards
Harsh Bhavsar

Harsh_Bhavsar_0-1776749020632.png

 

Best answer by RomainR.

Hello @Harsh_Bhavsar 


GPIO PA0 is in the VDD domain (like PA1), and the Notes column should contain “(1)”.
In addition, PA0 is a TT_a structure, as it provides an analog connection to the ADC.

I have requested a correction of this table for the next revision. The internal ticket number : CDM0061970 (This is an internal tracking number and is not accessible or usable by customers.)

Sorry for this typo.

Best regards,
Romain,

2 replies

Ozone
Principal
April 21, 2026

Reading datasheets is a skill you might want to improve.

The answer you look for is in the explanation of "TT_a" in the column "I/O structure".
This is found in a table "Legend/abbreviations used in the pinout table", usually at the beginning of the pinout section.

RomainR.
RomainR.Best answer
ST Employee
April 21, 2026

Hello @Harsh_Bhavsar 


GPIO PA0 is in the VDD domain (like PA1), and the Notes column should contain “(1)”.
In addition, PA0 is a TT_a structure, as it provides an analog connection to the ADC.

I have requested a correction of this table for the next revision. The internal ticket number : CDM0061970 (This is an internal tracking number and is not accessible or usable by customers.)

Sorry for this typo.

Best regards,
Romain,

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