Hi Evan I went back over what you wrote and the only thing that I am not very clear on is where you say "They are form and fit compatible" I can see the case where having multiple vendor P/N's would be a good fit using attributes as in PCAD but in such a case your physical footprint on the board will still be the same, like a 1206 resistor etc. Form & fit to me seems to indicate some sort of "Module Assembly" , would that be right ? I can see where your footprint may be X, but footprint X can be a module which means it's form and fit does not vary from a footprint perspective but it's actual function can vary widely in particular if said module contains something like an FPGA or some other programmable logic. I don't have much exposure to the allegro front end "Concept" I am living in the Orcad Capture world here. That been said it seems if my assumption is right with respect to modules then how to have a P/N for a module that can vary widely in function is a bit of a challenge. Not too sure how to approach this. Anyway, glad to put some ideas out there. The dialog on this is good. Thanks .... Paul.![]()
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