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Altera_Forum's avatar
Altera_Forum
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16 years ago

Speed grade, and maximum frequency?

Hello, I am working with a Cyclone 2, speed grade 8. According with this speed grade the maximum frequency is 125 MHz. Questions: 1. Why the manual of CYCLONE, says that the M4K ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

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thanks for your reply!

and what does the "speed grade -8" exactly means?

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Hi,

in the old PLD times it was the propagation delay from an input pin to non-registered output. I'm not sure whether this is also valid for an FPGA.

Kind regards

GPK