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Altera_Forum
Honored Contributor
Honored ContributorMaximum Performance of DDR2 ALTMEMPHY on Cyclone-III
Hi I have a design, using DDR2 and ALTMEMPHY on the Cyclone-III. My DDR2 IOs are on the side of FPGA (Row IO). According to the 2008 release of AN-445, maximum clock rate of the ALTMEMPHY is 16...
Altera_ForumHonored Contributor
Honored Contributormsj -
Check out this external memory interface spec estimator: https://www.altera.com/products/intellectual-property/best-in-class-ip/external-memory/support-selector.html# According to this the limit for Cyclone III is 167MHz for row I/O in C6 speed grade, 150MHz for C7, and 133MHz for C8.
