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Date:	Sun, 9 Apr 2023 08:49:19 +0200
From:	"Gabriel Paubert (paubert AT iram DOT es) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To:	"karl AT aspodata DOT se [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
Subject:	Re: [geda-user] Possible attribute conflict for refdes: R35
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On Sat, Apr 08, 2023 at 11:14:14PM +0200, karl AT aspodata DOT se [via geda-user AT delorie DOT com] wrote:
>  What value to be used for a resistor array with R1 = R4 < R2 = R3 ?

You mean like Vishay's ACAS series?

I've been using them quite frequently for over a decade. 

What I've done is to define a symbol with multiple slots (actually 2 in
my case since I use ACASN, not ACASA) and I have added another attribute
("label" or "val" depending on my mood at the time) which is visible
in the symbol (and therefore promoted) and has a default value of "?".

Then I just edit this value on the symbol instance. It's not perfect
since it does not enforce R1 = R4 and R2 = R3, but it's only a
documentation item. The important information for assembly is the device
name (for example ACASN1002S5002).

But maybe someone has a better solution.

	Regards,
	Gabriel


> 
> The technical answer would be to use the part number, but then it would
> be harder to understand the circuit since the resistance value isn't 
> obvious.
> One could use the pin label (as e.g. in mcu use), but that would make it
> hard to change the "value" to e.g. 1k, or to change it to discrete resistors.
> 
> Any idea ?
> 
> Regards,
> /Karl Hammar
> 
 

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