(MC68040) A microprocessor from Motorola. IT was the successor to the Motorola 68030 and was followed by the Motorola 68060. The 68040 was the first 680x0 family member wITh an on-chip FPU. IT also had splIT instruction and data caches of 4 kilobytes(?) each. IT was fully pipelined, wITh six stages. The 68040 was used in the Apple Macintosh Quadra series of personal computers. The MC68LC040 is an MC68040 wIThout a built-in FPU, and the MC68EC040 is an MC68040 wIThout an MMU or FPU. (2003-10-25)