I've gotten my hands on a old intel product, the following information is listed on the processor:
"
i
D87C64
U8420154
ⓜⓒ i '83 '86
"
I know some facts about this:
It is pre 2000's, suspecting 1980's (83-86).
It has 28 pins (2x14)
It has a window.
Looking for any information you might have, such as release date, type of product, or even a datasheet!
Thank you for reading.
Edit:
Forgot what is stated underneath:
"
7830368TBR
iPHILIPPINES NJ 40
"
