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slava
Joined: 24 Jul 2005
Posts: 379
Location: Dnipro, Ukraine
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 Posted: Wed Oct 05, 2005 5:17 am Post subject: VERY interesting remarked Intel chip |
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Please provide information on this chip.
It was a D8080A before I scraped off that ugly enamel, now it's something strange. I've never seen anything like this. Can this be some sort of sample?
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CPUShack
Joined: 16 Jun 2003
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Location: State of Jefferson, USA
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| Posted: Wed Oct 05, 2005 11:35 am Post subject: |
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I have a bnch of 2708 EPROMs that are marked with a house number and MOS. SO I imagine yours was the same, and then was remarked to 8080A.
I want to say mine were from a DEC but I can't remember for sure.
2892291-00 is the house number on mine
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gshv
Joined: 01 Feb 2003
Posts: 7898
Location: Fairfax, VA USA
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| Posted: Wed Oct 05, 2005 1:29 pm Post subject: |
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| CPUShack wrote: | | I have a bnch of 2708 EPROMs that are marked with a house number and MOS. SO I imagine yours was the same, and then was remarked to 8080A. |
Agree. There was another thread before that mentioned Intel 8080 with 3013149-00 house number:
http://www.cpu-world.com/forum/viewtopic.php?t=244
The only difference is in the last letter. Your chip has 'C', and John's (jrmunro) chip has 'A'. Maybe his chip is 8080 without A?
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slava
Joined: 24 Jul 2005
Posts: 379
Location: Dnipro, Ukraine
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| Posted: Wed Oct 05, 2005 2:16 pm Post subject: |
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Does a house number mean a pre-public release name?
Then why does the datecode say 8003 ? And the other one on the back is 7949 ? 
My idea is that someone had stolen these from Intel lab, remarked them to ordinary names and sold 
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CPUShack
Joined: 16 Jun 2003
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| Posted: Wed Oct 05, 2005 5:19 pm Post subject: |
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house number would be internal for ANOTHER company (ie DEC, or HP) they have their own part numbers and when they buy alot Intel marks them with it.
7949 should be the date when the package was made
8003 should be when the CPU was finished (die bonded to the substrate and top put on)
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jrmunro
Joined: 01 Feb 2003
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Location: Vancouver, Canada
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slava
Joined: 24 Jul 2005
Posts: 379
Location: Dnipro, Ukraine
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| Posted: Thu Oct 06, 2005 2:50 pm Post subject: Re: 3013149-00A |
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Not much of info, is it? 
But well, you've got CS on yours. Custom Sample, if I'm right.
Probably if I scratch all of the enamel off, there will be a CS somewhere too
Do you have any board to test the chip and confirm that it is a C8080 ?
Mine must be a D8080A, as it was written on it.
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