anyone come across some 8212's with a strange markings. I bought these a long time ago, so I can't which parts supplier had them. the part# is 8212P but it has no vendor symbol or prefix and the datecode has TSL9445 I didn't think they were still made 20yrs later ​And the prefix on the datecode is rather odd​ I just might have to add this profile to my chip tester to see if these are really genuine ​Dan ​