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Altera_Forum's avatar
Altera_Forum
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9 years ago

EQFP pin spacing 0.4mm or 0.5mm?

I am a very newbie to Altera devices.

Now, I'm checking the package dimension of 5M40ZE64C5N

which is EQFP 64pin device.

There are two different descriptions about pin spacing

and I'm confusing.

The altera package document

https://www.altera.com/content/dam/altera-www/global/en_us/pdfs/literature/ds/pkgds.pdf

says the pin spacing is 0.4mm in p57

But in a different document like http://dkc1.digikey.com/jp/ja/tod/altera/max-v-overview/max-v-overview.html

it is "0.5mm EQFP package". I can found the value in other documents.

Does somebody tell me which is correct?

2 Replies

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

    Hi k,

    0.4mm pitch is correct, based on a measurement on Altera 5M80ZE64C5N in EQFP64 package.

    Regards,

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

    Thank you Martin,

    There are very few pitch conversion boards available for 0.4mm.

    And that is what I am afraid of.