eagle cad schematic

[DONG828200]

hello
while creating the circuit diagram
I found that I need to rearrange the name and value according to the orientation of the part.

Can I put two symbols on one device and refer to one footprint?

Is there any way to solve it?

Like the gate decal function of pads cad

[jorge_garcia]

Hi @DONG828200 ,

I hope you're doing well. In chapter 8 of the EAGLE manual component design is covered in detail. What you are referring to, we call in EAGLE a multi-gated component. These can be made in the device editor of the EAGLE library. There you can insert multiple symbols and then assign them to a single footprint.

Let me know if there's anything else I can do for you.

Best Regards,

[one-of-the-robs]

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@jorge_garcia wrote:

What you are referring to, we call in EAGLE a multi-gated component.

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I'm not sure he is referring to that. I got the impression he wants a choice of symbols for a single gate, depending on orientation. I've seen some packages that do that sort of thing instead of providing positionable attributes.

[DONG828200]

hi thanks for the reply
The multi-gate configuration doesn't seem to be what I want.
For example, I want to reference a 2 pin footprint to a 4 pin device. Is there a workaround for this?

Thanks Jorge.

[one-of-the-robs]

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@DONG828200 wrote:

For example, I want to reference a 2 pin footprint to a 4 pin device.

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Just re-read that again a moment.

Now think about it,

Does it make any sense? How are those four distinct electrical connections made, separately and individually, on a footprint with only two pads? It can't be done, physically. It's a nonsense requirement, so Eagle disallows it.

What you actually want is to have alternatives for how the symbol is rendered on the schematic. It's still only one symbol at a time, each with only two pins, but you want to be able to select which symbol gets shown. There are some eCAD packages out there that did that as a work-around for not being able to correctly render the attribute text when rotated (as you showed in your example). That's not how Eagle works. You have complete flexibility to move, rotate, even mirror (if you want) the attribute texts. This lets you fit them where its convenient.