I ran across a small (3'x4") PCB with what looks like an MPU on it. The part numbers for the most mean nothing to me. There's a 27C256 on it and a 20 MHz XCO and some assorted glue. The largest package is a Mitsubishi MN8601ME1, 64 pin "shrink DIP". Next to it is a MN8611A 42 pin "shrink DIP" and a QFP MN51040MGU, which I believe is a gate array. Does anyone have a clue as to what the heck this is? Cheers, Chuck