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Article #1212

Re: id in parts

#1212
From: Thomas D. Barrett
Date: Wed, 16 Dec 1992 14:05
24 lines
1551 bytes
In article <BzBtuu.6t0@inews.Intel.COM> dmccart@gomez.intel.com (D. J. McCarthy) writes:
>	Even putting it in some sort of ROM section later (to be
>burned in at encasing time or something) would seem to me to be
>extremely cost-ineffective.  But like I said, I really have no idea.

D.J.,

Dallas Semi did something like this with a serially encoded id chip.  
The chip was dirt cheap, so it must have been fairly simple to program.
Obviously they could have used PROM or EERAM, but those do have a life
span... maybe it was just simple fused logic.  Regardless, it was probably
serialized during the testing.  True, it would add a few cents to the 
tester time, but as processors get more and more expensive it wouldn't
be such a bad idea to have them forever marked and traceable...

You heard it hear first :)

Tom

-- 
| Tom Barrett (TDBear), Sr. Engineer | tom.barrett@amd.com
| AMD PCD / Austin, TX  78741        | v:512-462-6856 / f:512-462-5155
| "No is Yes, and We are All FREE!"  | CO made a #2 no-no... PU!
| My views may not be shared by the organization of origin
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Message-ID: <1992Dec16.140513.987@dvorak.amd.com>
Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!sun-barr!news2me.EBay.Sun.COM!exodus.Eng.Sun.COM!sun!amdcad!dvorak.amd.com!tdbear
References: <BzAww5.CGD@dutiws.twi.tudelft.nl> <BzBtuu.6t0@inews.Intel.COM>

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Path: arc1-ca.pugleaf.net!sparky!uunet!cs.utexas.edu!sun-barr!news2me.EBay.Sun.COM!exodus.Eng.Sun.COM!sun!amdcad!dvorak.amd.com!tdbear
From: tdbear@dvorak.amd.com (Thomas D. Barrett)
Newsgroups: comp.sys.intel
Subject: Re: id in parts
Message-ID: <1992Dec16.140513.987@dvorak.amd.com>
Date: 16 Dec 92 14:05:13 GMT
References: <BzAww5.CGD@dutiws.twi.tudelft.nl> <BzBtuu.6t0@inews.Intel.COM>
Organization: Advanced Micro Devices, Inc.; Austin, Texas
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