From: Baltissen, GJPAA (Ruud) (ruud.baltissen_at_abp.nl)
Date: 2005-10-17 07:24:33
Hallo Magnus,
> A quad-NAND would do nicely in your case
>
> +------------|-.________
> ___ | +-|-' ROM CS
> ROM/RAM sel | |
> -------------+-=| )-------|-.________
> ___________ +-|-' RAM CS
> chip select |
> ---------------=| )-----+
> ^
> signal connected to both inputs, so = inverter
I'm sure the above will work perfectly except.... I'll need one IC for every
chipselect ie. four in total. Using OR gates and invertors I need three. And
using 139's I only need two.
> and your mentioning a '139 is just the drugs talking):
No, it isn't.
--
___
/ __|__
/ / |_/ Groetjes, Ruud
\ \__|_\
\___| URL: Ruud.C64.org
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