X-Authentication-Warning: delorie.com: mail set sender to geda-user-bounces using -f X-Recipient: geda-user AT delorie DOT com X-Mailer: exmh version 2.8.0 04/21/2012 with nmh-1.7+dev X-Exmh-Isig-CompType: comp X-Exmh-Isig-Folder: inbox From: "karl AT aspodata DOT se [via geda-user AT delorie DOT com]" To: geda-user AT delorie DOT com Subject: [geda-user] component rotation in data sheets... Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Message-Id: <20210529092010.CAB3883B0DDA@turkos.aspodata.se> Date: Sat, 29 May 2021 11:20:10 +0200 (CEST) X-Virus-Scanned: ClamAV using ClamSMTP Reply-To: geda-user AT delorie DOT com I'm looking at (among others): http://www.farnell.com/datasheets/3163649.pdf http://www.farnell.com/datasheets/83886.pdf and it strikes me that the pinning or pin configuration is always so that pin 1 is top left, but when presenting the package outline, pin 1 is always at bottom left. Why is that, and what convention is best when doing the footprint ? I have tried to use top left in footprint, but jedec jep95 standards (https://www.jedec.org/category/technology-focus-area/jc-10/registered-outlines-jep95) MO and MS, seems to always be with pin 1 at bottom left. So should I change and also use bottom left for pin 1 ? Regards, /Karl Hammar