accidentally found, I have absolutely no idea about it
Looks like an ASIC of some kind from AMI. If it is an ASIC, you are not likely going to stumble onto a datasheet easily.
The logo looks strange though, not an AMI logo I've seen before. Still I'd guess it is a prototype of an ASIC, which might explain the ceramic package.
The logo looks strange though, not an AMI logo I've seen before. Still I'd guess it is a prototype of an ASIC, which might explain the ceramic package.
It appears AMI changed their logo at some point in the late 80's or in the 90's. If I am reading the date code correctly the part was made in 1973. At that time ceramic construction would not have been unheard of. Not sure if it is a prototype since I am able to find a released product that use the part.