{"id":9012,"date":"2007-09-27T18:05:00","date_gmt":"2007-09-27T22:05:00","guid":{"rendered":"https:\/\/nuxx.net\/blog\/2007\/09\/27\/part-identification\/"},"modified":"2026-07-01T11:36:08","modified_gmt":"2026-07-01T15:36:08","slug":"part-identification","status":"publish","type":"post","link":"https:\/\/nuxx.net\/blog\/2007\/09\/27\/part-identification\/","title":{"rendered":"Part Identification"},"content":{"rendered":"<p>(<strong>UPDATE:<\/strong> This has been reworded to not sound like crap.)<\/p>\n<p>I&#8217;m looking for an IC, but having a hard time figuring out exactly which one does what I need.<\/p>\n<p>Here&#8217;s what I need it to do:<\/p>\n<p>Have five inputs which are connected to five pins on a microcontroller. Have one common input connected to +5VDC. (This could be common with Vcc for the IC.) When one of the five input pins goes high or low, the common input is connected to or disconnected from the output. The point of this is so that I can provide \/ sink more current than the microcontroller can handle.<\/p>\n<p>My original idea was just to use five NPN transistors, but I figured I could find something in the form of a single IC and make assembly easier.<\/p>\n<p>This is going to be used to drive some relays and LEDs. I could do it with discreet transistors, but that seems clunky and harder to solder.<\/p>\n<p>What sort of part do I look for, or which data \/ catalog sheets can I pour over to find something like this?<\/p>\n","protected":false},"excerpt":{"rendered":"<p>(UPDATE: This has been reworded to not sound like crap.) I&#8217;m looking for an IC, but having a hard time figuring out exactly which one does what I need. Here&#8217;s what I need it to do: Have five inputs which are connected to five pins on a microcontroller. Have one common input connected to +5VDC.\u2026<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6,34],"tags":[],"class_list":["post-9012","post","type-post","status-publish","format-standard","hentry","category-electronics","category-moved-from-livejournal"],"_links":{"self":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/9012","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/comments?post=9012"}],"version-history":[{"count":3,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/9012\/revisions"}],"predecessor-version":[{"id":12617,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/posts\/9012\/revisions\/12617"}],"wp:attachment":[{"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/media?parent=9012"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/categories?post=9012"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nuxx.net\/blog\/wp-json\/wp\/v2\/tags?post=9012"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}