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Altera_Forum
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15 years ago

Setup Hold times for Cyclone IV Flops

Hi All, I have looked in Cyclone IV Handbook and did not find T'su or T'hold for the flops. Is this info available somewhere? Can I safely assume t'hold to be zero? I am also trying to ...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Ref: that 2.5ns is how fast the clock tree can toggle and is independent of the ffs.

So clock tree is much slower than Tsu, cos it has the added burden of ensuring low skew between the farthest corners of the chip?