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208 pin quad plastic processor marked 20h2558 IBM 1

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JohnWhite

Aerospace
Sep 21, 2003
3
GB
Does anybody have any information, pinout and function diagrams of the processor made by INTEL (Japan) for IBM and marked as 20H2558. This processor is used on the main board of the IBM Passbook Printer 9068. If anybody knows of a supplier of this chip (IBM don't recognise the number), please let me know. Kind regards to all readers. John

 
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It is almost impossible to get any data about such chips. That chip is probably manufactured for this particular board and data sheets are never released to public. :-(

regards,
Raivo
 
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