Digital level input voltages

Hi All,

I have a FEZ Panda II and am trying to find the voltage threshold for reading digital pins. I can’t seem to find in any documentation what voltage is deemed as true or false. I ask because I’m having signal issues interfacing with a 2.8 volt system.


You might want to take a look in the LPC2387 datasheet. Or the LPC23xx user manual:

I found it here: search for vih and vil

Awesome thanks! I should have thought to check the uC datasheet :slight_smile: