Wher to get ZIFs and EPROMs?

[Ward Spoonemore]

These ECM's clock at 1 mhz, that's 1000 ns, I don't think you could find
chips that are to slow, most likely they would be more noise susceptible is
the they are too fast.
Ward.

-----Original Message-----
From: owner-diy_efi at efi332.eng.ohio-state.edu
[mailto:owner-diy_efi at efi332.eng.ohio-state.edu]On Behalf Of
ECMnut at aol.com
Sent: Saturday, March 06, 1999 8:29 PM
To: diy_efi at efi332.eng.ohio-state.edu
Subject: Re: Wher to get ZIFs and EPROMs?


Bob,
I have had problems with 'some' 250ns chips in my 7749 ecm.
I got a prom error and it went into limp mode.  I think he should
use 200 or faster.  On the other hand, I may have had some duds.
Mike V
>
>  These are National Semiconductor 256's, CMOS, quartz windows, at
>  250ns access. They are pulls that I purchased from Astro Marketing.
>  If these will do, $1 @ plus ship. I have 30 that I can sell.
>
>  I'm posting this so that maybe someone can help as to the access time,
>  I don't know if these are correct for Ted's application.
>