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CPUShack

Joined: 16 Jun 2003 Posts: 34259 Location: State of Jefferson, USA
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Posted: Thu Aug 28, 2008 10:29 pm Post subject: Who made this 2901? |
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Yes I know its stamped Motorola
However, this isnt a normal style Motorola Package.
And as far as I have seen, Motorola has never used that font
Intel however did, in the second half of 1981
See pics _________________ New for 2025! The CPU Shack has a co-processor!
Visit The CPU Shack of microprocessor history and information. |
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wepwawet

Joined: 18 Mar 2004 Posts: 3019 Location: Seligenstadt - Germany
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Posted: Fri Aug 29, 2008 9:57 am Post subject: |
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I guess the back print is done at the plant, the top print somewhere else, maybe at the headquarter.
Why not imagine a plant working for Intel AND motorola? _________________ You may use the photos I have posted here under CC BY-NC-SA license. |
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CPUShack

Joined: 16 Jun 2003 Posts: 34259 Location: State of Jefferson, USA
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Posted: Fri Aug 29, 2008 10:24 am Post subject: |
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It's possible, but rather odd, back printing should e done by the assembly/test plant.
What is odd is the date difference, 3 years from the motorola, to the Intels.
Have you seen any other Motorolas with that font? _________________ New for 2025! The CPU Shack has a co-processor!
Visit The CPU Shack of microprocessor history and information. |
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wepwawet

Joined: 18 Mar 2004 Posts: 3019 Location: Seligenstadt - Germany
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Posted: Fri Aug 29, 2008 10:29 am Post subject: |
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I'll check mine when I'm back home.
I am especially curious about my white 2901 by motorola. |
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Chiefish

Joined: 23 Sep 2007 Posts: 2153 Location: Northwest N.J. U.S.A
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Posted: Fri Aug 29, 2008 11:14 am Post subject: |
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I have a white motorolla as well, ill check tonite when i get home too. Ill also check some of the other 2901s i have and see what they look like. _________________ "The only reason for time is so that everything doesn't happen at once." A.E. |
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wepwawet

Joined: 18 Mar 2004 Posts: 3019 Location: Seligenstadt - Germany
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Posted: Fri Aug 29, 2008 11:58 am Post subject: |
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The white moto 2901 ha4 no back print.
But a MC68A00L dated 7850 has the same font at bottom (Malaysia) as your one |
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doccybrown

Joined: 03 Oct 2005 Posts: 1736 Location: Germany
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Posted: Fri Aug 29, 2008 12:25 pm Post subject: |
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Guys, look at the packages of National
Semiconductor`s chips, there are so
many variations that I thought I`ll get crazy.
This is especially for older chips of National Semi,
maybe they aquired 1000 blanks here
and 1000 blanks there, buying all odd lots
of empty packages for own production.
OR they gave a manufacturing order to
a lot of companys no matter what the
package will be.
The famous white AMD 2901ADC`s have
always a "RAYT(dc)"-printing, so very
probably produced by Raytheon.
I guess that many many other old
chips are produced by a lot of
semiconductor manufacturers we not
even know the name of.
[White MC2901 picture by Christian Bassow.] _________________ Ordem e Progresso |
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CPUShack

Joined: 16 Jun 2003 Posts: 34259 Location: State of Jefferson, USA
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