Hi,
It's probably the original MC68000 in 64 pin large DIP package, to makes run this part you need:
8Mhz clock generator, RAM, ROM or Flash, some glue device (PAL, EPLD..) to do address decoding and DTACK, IACK generation, but you probably need extra devices such as UART (MC68691 or MC68692 for dual), or multi function such MC68981 (UART + timer + I/O) and you also need I/O ports with PIA MC6821 (working in 8bits synchronous 6800 mode), or you can do this with PAL/EPLD/FPGA, and to debug this, you need a good ROM monitor with serial link, or a M68K emulator such as HP64000.
Emmanuel