max10 io standards - max10 io standards Hello everybody, I am reading the max10 specs, searching what IO standard options are available, and i am not sure what the "2,5V" means. For 3.3V there are separate LVTTL and LVCMOS options available, but for 2,5V (and lower), there are no additional information. Is this 2.5V a standard IO or is it custom to this particular IC? Where can i find the specifications? There are more options listed in UG-M10GPIO p.34 (image below), which are not shown in PinPlanner GIU (image below). For instance, there is no 2.5V LVTTL available in drop down menu - why is that? Regards Replies: Re: max10 io standards Hi, I’m glad that your question has been addressed, I now transition this thread to community support. This thread will be transitioned to community support. If you have a new question, feel free to open a new thread to get support from Intel experts. Otherwise, the community users will continue to help you on this thread. Thank you. Replies: Re: max10 io standards Thank you for your fast responese, Regards Klemen Replies: Re: max10 io standards Hi, for 1.8 V and 2.5 V VCCIO, separate LVTTL and CMOS I/O standards don't exist. Not sure why they are listed in device handbook, but you'll notice that they have identical electrical parameters in datasheet and support same current srength values. In MAX10 IBIS model, the 1.8 and 2.5V standards are designated LVCMOS. IBIS models also give the most detailed representation of I/O characteristics.