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cedrik
Joined: 16 Oct 2011
Posts: 2008
Location: Rom�nia
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 Posted: Wed Jun 06, 2012 5:12 am Post subject: Identify Intel chips |
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I need help to identify 2 chips (second and third) and to find datecode of all 3...
I did some searches how to identify date for Intel chips and where is like 8327 is obvious... But in this cases date is represented by the first 3 numbers after L ? and if first letter is 1 can be 81 , 91 how can i know if there is no copyright or somethin'? because where its copyright 86 obvious cannot be 81 the year of production... The numbers on the back of the chip include date?
Thank you
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Last edited by cedrik on Wed Jun 06, 2012 6:15 am; edited 1 time in total |
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jrmunro
Joined: 01 Feb 2003
Posts: 3149
Location: Vancouver, Canada
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| Posted: Wed Jun 06, 2012 5:20 am Post subject: |
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1981 week 34
1984 week 31 Network Interface Circuit - Prog HDLC/SDLC Controller |
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Elar
Joined: 16 Jul 2003
Posts: 746
Location: Tallinn, Estonia
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| Posted: Wed Jun 06, 2012 12:07 pm Post subject: |
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| At least the 5C090 must be manufactured in 1991 week 34 as it is a copy of Altera EP900. Altera became the first company to ship EPLD's in 1984. |
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jrmunro
Joined: 01 Feb 2003
Posts: 3149
Location: Vancouver, Canada
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| Posted: Wed Jun 06, 2012 3:20 pm Post subject: |
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| Elar wrote: | | At least the 5C090 must be manufactured in 1991 week 34 as it is a copy of Altera EP900. Altera became the first company to ship EPLD's in 1984. |
I think you are right about this one. |
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naked1300
Joined: 26 Jul 2007
Posts: 837
Location: Austria,
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