[sdiy] Synth memory chip questions

John L Marshall john.l.marshall at gte.net
Sat Jun 29 06:51:43 CEST 2002


I agree. Packaging or temperature. The -15 is most likely the access time.


Take care,
John
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Pacific Northwest DIY Synthesizer meeting, July 20, 2002
See: www.sound-photo.com
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----- Original Message -----
From: "j vallier" <peff2cv at hotmail.com>
To: <jlarryh at iquest.net>
Cc: <synth-diy at dropmix.xs4all.nl>
Sent: Friday, June 28, 2002 7:45 PM
Subject: Re: [sdiy] Synth memory chip questions


> Hi,
>
> The C/V difference is most likely the temperature rating. Industrial just
> endures more extreme temperatures. Unless you're planning to use your
synth
> at -40C or +70C, shouldn't make a difference...
>
> There is a chance it could be the package too, with V being a PLCC. Theguy
> you're buying from should be able to tell the shape and solve that
mystery.
>
> Peff
>
>
> >From: "J. Larry Hendry" <jlarryh at iquest.net>
> >To: "synth DIY" <synth-diy at dropmix.xs4all.nl>
> >Subject: [sdiy] Synth memory chip questions
> >Date: Fri, 28 Jun 2002 20:59:22 -0500
> >
> >OK, I have had no luck with a Google search even finding many of these,
and
> >zero luck finding what the variety of numbers / letters mean.  So, I am
> >come
> >to my favorite place to ask the experts for some good advice.
> >
> >I am looking for a 256Kx1 memory chip (it is out of a Korg DSS-1
sampling,
> >but otherwise analog synth).  The number I am looking for is NEC
> >D41256V-15.  Thanks to Google, I found a guy with some chips for sale and
> >he
> >tells me the number on his chips is:  NEC D41256C-15.  The last letter C
> >verses V is the only difference in the number.
> >
> >Anyone know or care to hazard a guess as to the difference?  Speed?
> >Package?
> >
> >Thanks,
> >Larry Hendry
> >
> >
>
>
>
>
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