STM32G4 I/O input high level voltage

[JR1]

Dear Sir's,

 

what is the minimum high level threshold voltage

for a non FT_C port? Is it 0.7xVDD or 0.49xVDD+0.26?

 

Regards,

Jochen

[Andrew Neil]

What does the note (3) tell you?

 

[KDJEM.1]

Hello @JR1 and welcome to the community :),

These 2 formulas are correct  VIH = 0.7x VDD is the threshold tested in production and VIH=0.49xVDD+0.3V is the threshold guaranteed by design as mentioned in note 3.

This behavior is mentioned in data sheet figure 25: in blue the threshold level tested in production and in green the threshold level guaranteed by design.

May this discussion can help you.

Kaouthar