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Q&A

Altium. Reusing schematic symbols for pin-compatible parts.

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I want to create a schematic symbol and reuse it for multiple ICs which have identical pinouts. For example, OpaMPS, or the venerable SN74LS00, SN74HC00, SN74HCT00. How can I do this in an Altium library without copying and pasting the symbol every time?

I'd like to create a library where I don't need to remember all the pin-compatible sets, and I can go by the part number in the library. I want to find out what kind of support Altium has for that.

I know I could drop a symbol and change the comment from ADuM2250 to ISO1640DWR. But that would not be the workaround I'm looking for.

For a comparison, OrCAD has aliases for schematic symbols. Each symbol can have multiple model numbers associated with it.

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Something like Eagle's device attributes? (2 comments)
Some thoughts. (1 comment)

1 answer

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New versions of Altium (22.x) changed their approach to component libraries. You now create components, to which a symbol and several footprints can be tied.

This allows you to reuse symbols across your component library (Altium doc). Additionally, you can use generic components in your designs to make a first version of your schematic without selecting a specific component.

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