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Re: gEDA-user: footprint for 1.27 mm spacing
On Tue, 3 Feb 2004 23:40:53 -0500
Dan McMahill <dan@mcmahill.net> wrote:
> On Tue, Feb 03, 2004 at 03:54:02PM -0800, David Koski wrote:
> > I am new to gschem/pcb. What footprint is used for 1.27mm spacing smt chips? I
> > see no footprint examples or docs for it.
> >
>
> Thats "50 mils" where I come from ;) I assume you mean the SOIC family?
> See http://www.geda.seul.org/docs/20040111/symbols/node14.html for the
> geda suggested names. The ~geda library in PCB has things like SO8, SO14,
> etc.
Thanks! It must be a SO28:
"Small outline SMT packages with more than 20 50 mil spaced pins and 300 mil
total width are called SOn."
But the .65mm spacing doesn't work:
"Metric shrink small outline SMT packages with 0.65 mm spaced pins and 323 mil
total width are called MSSOPn. NOTE: To be confirmed."
sch2pcb produces:
"U7: can't find PCB element for footprint MSSOP28 (value=unknown)"
Regards,
David Koski
david.nospham@KosmosIsland.com
!.nospham