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2004-01-24 by jocjo_john
Does anybody know where I can get information for the various dimensions of the pads for SSOP devices? I want to create the components in my CAD program but I don't know the recommended pad sizes. The one I'm working on now is a 20-pin SSOP. Thanks. John
2004-01-24 by Leon Heller
----- Original Message -----
From: "jocjo_john" <jocjo_john@...> To: <Homebrew_PCBs@yahoogroups.com> Sent: Saturday, January 24, 2004 10:12 PM Subject: [Homebrew_PCBs] Where can I find SMD pad layout info? > Does anybody know where I can get information for the various > dimensions of the pads for SSOP devices? I want to create the > components in my CAD program but I don't know the recommended pad > sizes. The one I'm working on now is a 20-pin SSOP. Philips has a useful document on their web site with most SMD footprints in it. They will probably need some adjustment for home-made PCBs and hand soldering. Leon -- Leon Heller, G1HSM Email: aqzf13@... My low-cost Philips LPC210x ARM development system: http://www.geocities.com/leon_heller/lpc2104.html
2004-01-25 by Leon Heller
----- Original Message -----
From: "jocjo_john" <jocjo_john@...> To: <Homebrew_PCBs@yahoogroups.com> Sent: Sunday, January 25, 2004 12:57 AM Subject: [Homebrew_PCBs] Re: Where can I find SMD pad layout info? > --- In Homebrew_PCBs@yahoogroups.com, "Leon Heller" > <leon_heller@h...> wrote: > > > > ----- Original Message ----- > > From: "jocjo_john" <jocjo_john@y...> > > To: <Homebrew_PCBs@yahoogroups.com> > > Sent: Saturday, January 24, 2004 10:12 PM > > Subject: [Homebrew_PCBs] Where can I find SMD pad layout info? > > > > > > > Does anybody know where I can get information for the various > > > dimensions of the pads for SSOP devices? I want to create the > > > components in my CAD program but I don't know the recommended pad > > > sizes. The one I'm working on now is a 20-pin SSOP. > > > > Philips has a useful document on their web site with most SMD > footprints in > > it. They will probably need some adjustment for home-made PCBs and > hand > > soldering. > > > > Leon > > -- > > > I'll look for it. Thanks, Leon. Here is something I found that is more generally useful, on the ALTIUM web site: http://www.altium.com/libraries/pcb_footprint_search.asp Leon -- Leon Heller, G1HSM Email: aqzf13@... My low-cost Philips LPC210x ARM development system: http://www.geocities.com/leon_heller/lpc2104.html
2004-01-25 by Dave Mucha
--- In Homebrew_PCBs@yahoogroups.com, "jocjo_john" <jocjo_john@y...> wrote: > Does anybody know where I can get information for the various > dimensions of the pads for SSOP devices? I want to create the > components in my CAD program but I don't know the recommended pad > sizes. The one I'm working on now is a 20-pin SSOP. > > Thanks. > > John I typically go to Digi-key, find the device in question and check the data sheet that is offered. Then I print out the parts of the data sheet I need to reference all the time, and save the PDF in the even I need to reference that also. Dave
2004-01-26 by jocjo_john
--- In Homebrew_PCBs@yahoogroups.com, "jocjo_john" <jocjo_john@y...> wrote: > Does anybody know where I can get information for the various My thank-you post did not make it, I see. So.. Thanks Leon and Dave. I got the info and finished the job. I knew I could count on the people in this group for help. John