I have a bunch (more than 80) of Both MB8116E and ITT 4116
I thought the MB8116 was a Fujitsu (not fairchild) part.
THey are certainly both 16K*1 DRAMs. What I can't remember is if the 8116
is a 3-rail type (like the 4116) or a single rail (+5V only) part. I
think it's the former (and the MB8118 is the single-rail one), but I
wouldn't bet on it.
-tony