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Draft: Interface_CAN_LIN: Add ISO1044 and other 8 pin isolated CAN transceivers

Jeremy Boynes requested to merge jboynes/kicad-symbols:isolated_can_8 into master

This MR adds symbols for some isolated CAN transceivers available in 8 pin packages, specifically:

These are very similar devices that differ in pin assignment and footprint so the intent is to have a common drop-in symbol. These could use the layout from the ISO1050 but that has a basic layout in pin number order and does not follow current KLC conventions (power pins on top/bottom, grid spacing) so I am proposing to use the following instead:

ISO1044

It has no KLC violations flagged.

If it is better to stick with the existing ISO1050 layout please let me know. I could also refactor it to use this one.

So far I've added the ISO1044 and will add the others when we've decided on layout.

  • Remove the instructional content of this template
  • Provide a URL to a datasheet for the symbol(s) you are contributing
  • An example screenshot image is very helpful
  • Ensure that the associated footprints match the official footprint library
  • If there are matching footprint PRs, provide link(s) as appropriate
  • Check the output of the automated check scripts - fix any errors as required
  • Give a reason behind any intentional library convention rule violation.

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