Help me with Siemens SM889

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I am looking for Siemens digital IC SM889 PDIP28 datasheets, year of
1985.I looked everywhere I could and I still have nothing.Could
someone please help me with that?Please let me know the
websites,companys, electrical-engineering-forums, anything,where
could I find it.Maybe someone knows the specialist who could have the
datasheet of SM889?
 
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This old topic is closed. If you want to reopen this topic, contact a moderator using the "Report Post" button.