Retro computer enthusiast [JohnK] recently tweeted about one such database that he recently found, entitled The Ultimate SMD Marking Codes ... is no room to print the entire part number on ...

Retro computer enthusiast [JohnK] recently tweeted about one such database that he recently found, entitled The Ultimate SMD Marking Codes ... is no room to print the entire part number on ...

U13 in image below, shows a National Semiconductor DS26C31TM with part marking "65CCYDUE0". Date code on received paperwork is 1619. I understand in the part marking, "65" is wafer fab and assembly ...