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Altera_Forum's avatar
Altera_Forum
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13 years ago

True LVDS - Stratix IV

Hi,

I use an EP4SE820 device with 1760 pins.

Can you confirm that the bank 1,2,5,6 have true LVDS I / O ?

If this is the case, it is not necessary to add resistors ?

thks

3 Replies

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

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    That's true.

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    Thks,

    Another question, can you confirm that it is possible to supply VCCIO to 3.3v ?
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    13 years ago

    The device handbook doesn't list 3.3V as supported VCCIO level:

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    You can connect the VCCIO pins to a 1.2-, 1.5-, 1.8-, 2.5-, or 3.0-V power supply, depending on the output requirements.

    --- Quote End ---

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    The 3.3-V LVTTL and 3.3-V LVCMOS are supported using VCCIO and VCCPD at 3.0 V.

    --- Quote End ---