Re: gEDA-user: Symbol question â suggestions?

["Johnny Rosenberg" <gurus.knugum@xxxxxxxxx>]

Den 2011-01-04 21:47:59 skrev Stefan Salewski <mail@xxxxxxxxxxxx>:

> On Tue, 2011-01-04 at 21:14 +0100, Johnny Rosenberg wrote:
>
> > comment=Use 74_pwr.sym for supply
>
> I wrote it some months ago...
>
> A single 74_pwr.sym can not work for 14 and 16 pin parts, so I really
> recommend to do not use a 74_pwr.sym at all, but one for 14, and one for
> 16 pins devices. I think I called my one at gedasymbols
> 74xx-14N-Pwr-1.sym.

But the 74LV4066 is 14-pin with GND at 7 and Vcc at 14, just like an  
ordinary 7400 and more.

> Does the 74-series version differ in layout from 4066? May be.

Maybe. I just did a quick search and found that MAXIM has two versions of  
their MAX4066: One with 14 pins and one with 16 pins.
http://html.alldatasheet.com/html-pdf/73292/MAXIM/4066/123/1/4066.html

But as far as I have seen, the 74LV4066 comes with 14 pins only.

> > I am not sure I got the pin numbers right (or how to use pinseq vs
> > pinnumber).
>
> It may be better to be sure.

Well, I am sure which pin is what, I am not sure I got it right in my  
symbol though, but I can test it, don't worryâ :)

> For pin type you may simple use "pas" for passive, as in resistors.

The default 4066 symbol used âpasâ for the switch thing and âinâ for the  
âenableâ thing. I guess I'll do the same then, since some people already  
suggested that.

Thanks for input and suggestions, everyone!

--
Kind regards

Johnny Rosenberg


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