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?