Hello,
I am using SN74LVC1G11-EP component, my VCC voltage is 5V.
according to datasheet the VOH MIN is 3.8V and it ok with my design.
but the VIH MIN is 0.7*VCC it means 0.7*5V=3.5V.
if my inputs are working with 3.3V and 3V voltages-maximum and the VIH MIN of the component is 3.5V,
I think I have problem with the design, I produced a lot of boards of this type and it working without problems yet (:
How is it possible? Maybe this component working with VIH MIN of 2V? why didn't I recognize it as a failure at my system tests?
Are you think that there is any risk and I need to re-layout this board again? Do you have replacement for this component with VCC=5V and VIH MIN=2V?
This board belong to aircraft system and I need high level of safety.
Thanks,
Igal