SOIC footprints in PCB

[Rob Butts]

Can someone tell me what is the corresponding footprint when a datasheet
lists a footprint as SOIC-8, SOIC-14 and SOIC-16? In PCB I see SOxx with
differing widths and SOJxx_xxx with a slew of varying widths.

I realize I have to verify all of the footprints but I'm just wondering what
everybody uses.

Thanks

[Thomas Oldbury]

SO8, SO16

Post by Rob Butts
Can someone tell me what is the corresponding footprint when a
datasheet lists a footprint as SOIC-8, SOIC-14 and SOIC-16? In PCB I
see SOxx with differing widths and SOJxx_xxx with a slew of varying
widths.
I realize I have to verify all of the footprints but I'm just wondering
what everybody uses.
Thanks
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[Thomas Oldbury]

[sorry, pressed Send too soon]

SOx are the normal ones - 150 mil wide for most low pin count and 200 mil
wide for others (>18 pins?)

SOxM is 200mil wide. It fits 8 pin 208mil DataFlash chips.

I've not used SOxW yet.

Post by Thomas Oldbury
SO8, SO16

Post by Rob Butts
Can someone tell me what is the corresponding footprint when a
datasheet lists a footprint as SOIC-8, SOIC-14 and SOIC-16? In PCB I
see SOxx with differing widths and SOJxx_xxx with a slew of varying
widths.
I realize I have to verify all of the footprints but I'm just wondering
what everybody uses.
Thanks
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geda-user mailing list
http://www.seul.org/cgi-bin/mailman/listinfo/geda-user

[Rob Butts]

Thanks!

Post by Thomas Oldbury
SO8, SO16
Can someone tell me what is the corresponding footprint when a
datasheet lists a footprint as SOIC-8, SOIC-14 and SOIC-16? In PCB I
see SOxx with differing widths and SOJxx_xxx with a slew of varying
widths.
I realize I have to verify all of the footprints but I'm just wondering
what everybody uses.
Thanks
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geda-user mailing list
[3]http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
References
3. http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
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[Kai-Martin Knaak]

Post by Rob Butts
I realize I have to verify all of the footprints but I'm just wondering what
everybody uses.

I use exclusively the footprints from my section at gedasymbols.org.
Specifically:
http://www.gedasymbols.org/user/kai_martin_knaak/footprints/generic/SO8.fp
http://www.gedasymbols.org/user/kai_martin_knaak/footprints/generic/SO14.fp
http://www.gedasymbols.org/user/kai_martin_knaak/footprints/generic/SO16.fp

My footprints tend to contain a bit more exposed copper for convenient
manual soldering.

---<)kaimartin(>---