Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

CLK pin voltage on Cyclone IV devices

Specifically referring to the EP4CE6 devices, which have a core voltage of 1.2V, what logic level should the CLK input pins be at? Do they reference the core 1.2V level or the VCCIO level of the bank the CLK pin is located in?

Thanks for the answer.. I'm still a noobie starting out here:)

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    10 years ago

    I believe it will depend on which I/O standard that you used for the CLK input pins.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    10 years ago

    --- Quote Start ---

    I believe it will depend on which I/O standard that you used for the CLK input pins.

    --- Quote End ---

    Thanks, that's what I was going to go with:)