Assign one pin to multiple pads? - Page 1
Forum section: electronics / general

author: king.oslo
author_rank: Frequent Contributor
timestamp: February 11, 2012, 01:00:52 am
content: Hello there,I placed a NFET in the schematic. The symbol has three pins. The footprint has 8 pads. I want Pin 1 to connect to pads 5-9, pin 2 to connect to pin 4, and pin 3 to 1-3.How is this done in the schematic editor? I could not find a way with the "Pin Map" or "Edit pins".Thanks guys.Kind regards,Marius

author: mobbarley
author_rank: Regular Contributor
timestamp: February 11, 2012, 01:51:39 pm
content: Check out some tricks from some existing libraries

author: king.oslo
author_rank: Frequent Contributor
timestamp: February 11, 2012, 02:18:29 pm
content: Unfortunatly, I do not have access to any library with components like these.How is it done? Separation by comma in a particular dialog?Thank youKind regards,Marius

author: gxti
author_rank: Frequent Contributor
timestamp: February 11, 2012, 06:30:28 pm
content: Actually no, that would be entirely too easy. Instead what they did is make a separate schematic pin for every physical pin, turn off the visibility of the pin numbers, and put all of the pins on top of each other! The 1,2,3 is just a text label. By the way, the parts library is available for download from their website without any login, or was last time I complained about them not shipping it on the DVD anymore and someone pointed me there. It's got a very large selection of parts and footprints and I haven't been done wrong by it yet.

author: mobbarley
author_rank: Regular Contributor
timestamp: February 17, 2012, 06:18:06 am
content: Quote from: gxti on February 11, 2012, 06:30:28 pmbut wouldn't it be great

author: EEVblog
author_rank: Unknown
timestamp: February 17, 2012, 06:33:51 am
content: You can download all the libraries here:http://www.altium.com/community/libraries/altium-designer-libraries/en/altium-designer-libraries_home.cfmDave.

author: hkBattousai
author_rank: Regular Contributor
timestamp: July 01, 2014, 06:57:54 pm
content: I know this thread is very old, but my answer may help other users who will find it from Google search.Assume that you want to make the two VDD1 pins internally connected, so that when you route one of them to its proper net, the rat's nest to the other pin disappears.Double click one of the VDD1 pads to open its property window. Set an arbitrary jumper ID to it.Next, open the property window of the other pad. Set its jumper ID to the exact same number.That's it. I hope this helps.

author: Rufus
author_rank: Super Contributor
timestamp: July 01, 2014, 07:58:46 pm
content: Quote from: hkBattousai on July 01, 2014, 06:57:54 pmLooks like a generally bad idea. Packages with multiple power pins usually have them for a reason and it isn't so you can use the chip inside as a jumper.The only thing I can see it being a little useful for is things like 4 pin push button switches where there is a solid metallic connection between pairs of pins so you really only need to connect to one of the pair and could use that connection as a jumper.

author: hkBattousai
author_rank: Regular Contributor
timestamp: July 01, 2014, 08:02:36 pm
content: Quote from: Rufus on July 01, 2014, 07:58:46 pmYou're right. I wouldn't do that either. I just wanted to show how to do it in Altium Designer. Final decision to do it or not must be decided according to the part datasheet.