/members-area/personalblogs/b/blog/posts/cpld-controlled-door-lock---soldering-the-cpldI am now in the process of redesigning the circuit to accommodate a larger pin pitch CPLD, since soldering the 100 pin package proved very difficult and I trashed three of them - admittedly I was better each time but I still ripped up tracks, moved .en-USTelligent Community 12https://community.element14.com/members-area/personalblogs/b/blog/posts/cpld-controlled-door-lock---soldering-the-cpldSun, 24 May 2015 16:14:48 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:cbf03ec2-c0e6-48d7-b182-e1190067af14johnbeetem0<p>I would definitely look into SchmartBoard for a 100-pin TQFP: <a class="jive-link-external-small" href="http://schmartboard.com/index.asp?page=products_qfp&amp;id=68" rel="nofollow ugc noopener" target="_blank" title="http://schmartboard.com/index.asp?page=products_qfp&amp;id=68">http://schmartboard.com/index.asp?page=products_qfp&amp;id=68</a></p><p>&nbsp;</p><p>However, see if you can get away with a Xilinx XC9536XL or XC9572XL in a 44-pin PLCC.&nbsp; You can even socket those with 0.1&quot; through-hole pins.</p><p>&nbsp;</p><p>Or find a cheap CPLD module that already has the CPLD soldered on and has 0.1&quot; connectors you can adapt, or has room for prototyping the rest of your circuitry.</p><img src="https://community.element14.com/aggbug?PostID=20924&AppID=293&AppType=Weblog&ContentType=0" width="1" height="1">https://community.element14.com/members-area/personalblogs/b/blog/posts/cpld-controlled-door-lock---soldering-the-cpldSun, 24 May 2015 15:49:12 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:cbf03ec2-c0e6-48d7-b182-e1190067af14clem571<p>are you really soldier these? Look at Schmart boards or use soidler paste instead. Then use heat to reflow the paste.</p><img src="https://community.element14.com/aggbug?PostID=20924&AppID=293&AppType=Weblog&ContentType=0" width="1" height="1">