VQ44 recommended footprint

[Eric Smith]

The Xilinx packaging documentation for the VQ44/VQG44 package (document PK012, v1.2, dataed 2004-06-18) doesn't contain a recommended PCB footprint. In attempting to find such a footprint, Google turned up what appears to be a copy of a Xilinx web page, apparently no longer available from the Xilinx web site:

http://glacier.lbl.gov/gtp/DOM/dataSheets/Xilinx_pkg_info.htm

Does Xilinx actually still have this information in an current publication? In the description of the package footprint in my library I'd like to be able to cite a current Xilinx document.

 

[Jon Elson]

Eric Smith wrote:

The Xilinx packaging documentation for the VQ44/VQG44 package (document
PK012, v1.2, dataed 2004-06-18) doesn't contain a recommended PCB
footprint. In attempting to find such a footprint, Google turned up what
appears to be a copy of a Xilinx web page, apparently no longer available
from the Xilinx web site:

http://glacier.lbl.gov/gtp/DOM/dataSheets/Xilinx_pkg_info.htm

Does Xilinx actually still have this information in an current
publication? In the description of the package footprint in my library I'd
like to be able to cite a current Xilinx document.

I just made up my own footprint, a 2-minute job in Protel99 to make from
scratch, or 30 seconds to tweak the pad widths, etc. from an existing JEDEC
footprint. I usually make the stock pads narrower to resist bridging.

Always make sure you know whether pin 1 is in the corner or center of a row.
I've been tripped up by that before.

Jon

 

[Eric Smith]

On Friday, February 26, 2016 at 2:28:12 PM UTC-7, Eric Smith wrote:

The Xilinx packaging documentation for the VQ44/VQG44 package (document PK012, v1.2, dataed 2004-06-18) doesn't contain a recommended PCB footprint. In attempting to find such a footprint, Google turned up what appears to be a copy of a Xilinx web page, apparently no longer available from the Xilinx web site:

http://glacier.lbl.gov/gtp/DOM/dataSheets/Xilinx_pkg_info.htm

Does Xilinx actually still have this information in an current publication? In the description of the package footprint in my library I'd like to be able to cite a current Xilinx document.

Finally found the information. It's in Xilinx UG112 "Device Package User's Guide".