[sdiy] Old memory chips for edp spider - IM6561CN or IM65X61JN ?

[Tom Corbitt]

Well,

The hm6551 should be a drop in replacement for it, but the last
version they've got active sure isn't cheap. Looking at the datasheet
it shouldn't be that hard to just wire in a larger newer cmos chip and
just ignore the extra memory (I'm thinking of a smt version soldered
on a dip socket kind of thing)

http://www.intersil.com/cda/deviceinfo/0,1477,HM-6551FWDSLASH883,00.html

Tom Corbitt

On 6/18/07, Julian <julian at 22host24.com> wrote:
> My spiders, upon testing, are as most spiders seem to be - dead.
>
> The problem has been traced back to the memory chips (not by me mind) but
> the person working on them has had no luck in finding suitable replacements.
>
> So, anyone got a big bag of these knocking about ; ) or know a man (or shop)
> who does?
>
> Im in england, if that makes any difference to anything?
>
> Thanks, Julian
>
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