HD64180

The HD64180 is a Z80-based embedded microprocessor developed by Hitachi with an integrated memory management unit (MMU). It appeared in 1985. The Hitachi HD64180 "Super Z80" was later licensed to Zilog and sold by them as the Z64180 and with some enhancements as the Zilog Z180.

It has the following features:

The Micromint SB180 and SemiDisk Systems DT42 CP/M computers and Olivetti CWP 1 and ETV 210s videotypewriters (also running ROM based CP/M 2.2) were based on the Hitachi HD64180.

...
Wikipedia