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Altera_Forum
Honored Contributor
Honored Contributorspeed grade
Hi;
Now,I am designing a production with Cyclone III.But I don't understand what is speed grade.In the datasheet,block RAM can be designed up to 315MHz,then is it up to the max speed for the lowest speed device?1 Reply
Altera_ForumSee Table 1-22 in this pdf (http://www.altera.com/literature/hb/cyc3/cyc3_ciii5v2_01.pdf). 315 Mhz, 274 MHz, and 238 MHz for speed grades 6, 7, and 8, respectively.
