Spice and IBIS models do exist which work with Protel. They are freely available
on
websites ( IDT's for example)
Do you really want someone elses idea of a correct representation of a schematic
component ? Most of Protels libraries are generated by Protel and only a few are
generated from manufacturers themselves, I think Analogue Devices have some
on the Protel website. But if you are designing using any sort of high pin count
IC ,
you really do need to make a custom schematic symbol so as to produce a clear
diagram.
PCB footprints mainly use standard package types which are usually well catered
for , or the Protel footprint wizard zips one through.
Its trying to use prepackaged parts that dont quite fit and trying to edit these
or
starting from scratch with a part that fits perfectly and clearly shows what
your
schematic is doing.
_______________________________________________________________
Clive Broome
IDT Sydney Design Centre Ph: +61 2 9763 3513
8 Bayswater Dr, Homebush Fax: +61 2 9763 3409
Sydney, NSW, 2127 Email:[EMAIL PROTECTED]
Australia
Australia's Leading Semiconductor Designers
---------------------------------------------------------------
SN> Hi all,
SN> Same as everyone else. Make my own library, rename parts, then guard with
religious fervour.
SN> However I think it is crazy that Protel or myself should have to make
schematic and PCB layouts every time a chip comes out. What I would like to be
able to do is go to a Web site [Wavey lines as
SN> we fade to dream sequence], find a part, then download its' standard
Description File. This file would have:
SN> 1. A Spice Model
SN> 2. A schematic part
SN> 3. A PCB footprint
SN> 4. A 3D outline
SN> 5. Suggested Price
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