The MC68008 is an 8-bit bus version of the Motorola MC68000 and can address 1MB or 4MB of memory (using a 48-pin or 52-pin package). The original 48-pin package version
was used in the Sinclair QL, to make maximum use of inexpensive
8-bit technology on the motherboard while computing internally with the relatively fast 16/32-bit processing engine.
This specific item is built in my Sinclair QL computer from 1985.