File:Motorola XC68851RC16 memory management unit.png

An 16MHz PGA version of a Motorola 68851 memory management unit (MMU), designed for use with a Motorola 68020, such as the one in the Macintosh II.

Source

 * Genuine Motorola XC68851RC16 MC68851, Van Dijken Elektronica. Accessed 2020-03-17.