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fogl81's avatar
fogl81
Icon for New Contributor rankNew Contributor
8 months ago
Solved

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

Generic Io
  • FvM's avatar
    FvM
    8 months ago
    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.

3 Replies

  • FvM's avatar
    FvM
    Icon for Super Contributor rankSuper Contributor
    8 months ago
    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.
  • fogl81's avatar
    fogl81
    Icon for New Contributor rankNew Contributor
    8 months ago

    Thank you for your fast responese,

    Regards

    Klemen

  • FakhrulA_altera's avatar
    FakhrulA_altera
    Icon for Regular Contributor rankRegular Contributor
    8 months ago

    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.