Hi Bill,

I think this is one part you're going to have a *real hard time
* finding. How do I know?

I just finished re-designing a product for a client that's been in
production since 1985. It originally used a Rockwell R6501Q MPU. See
where this is heading?

The client builds about 1500 of these units a year and for the past
several years has been building them with a R6501J mounted on a
carrier board to fit the old R6501Q quad inline holes. This assembly
is a life-safety type device and changing the PCB layout would
require a complete U.L. re-listing to the tune of about $80K. So we
needed something that would "drop-in" and not require any software or
PCB re-work. We were lucky to find the R6501J's and be able to adapt
them to the old PCB design.

The contract manufacturer notified my client around the first of this
year that they could no longer find *any* of the parts anywhere in
the world at any price. They bought the last 500 pcs. they could find
for something like $65 ea. I tend to believe them as they've been on
a constant search for these parts for several years. They are
currently manufacturing the last 150 units they have parts for this
month and we'll be putting the new unit into production in January,
2007.

Good luck in your search, but I think you'll find that part very
hard, if not impossible, to find.

Matt Pobursky
Maximum Performance Systems

On Wed, 22 Nov 2006 11:51:41 -0500, William Couture wrote:
> Hi!
>
> I was wondering if anyone could point me to a source for some
> obsolete chips -- R6501J in 68 pin PLCC packaging?  The complete
> partnumber is R6501J R1702-13 PLCC68
>
> We already have a quote from 1stcallelectronics.com, but would like
> to find additional sources if possible.
>
> Thanks,
> Bill
>
> --
> Psst...  Hey, you... Buddy...  Want a kitten?
> straycatblues.petfinder.org

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