The Free On-line Dictionary of Computing (30 December 2018):

Motorola 68040
68040
MC68040

    (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)