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Altera_Forum
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16 years ago

(IO) EP3C40F780 differential pairs very far from each other

I see only EP3C40F780 device have differential pairs very far from each other. See in Quartus pin planner. Rest of the devices differential pairs are quite adjacent. Attach two devices snapsh...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Surprizing! Seems like a strong hint not to use these devices for designs with high LVDS utilization. I have no doubts that the pin mapping is according to the documentation.

No idea why Altera did it.