Zilog Z80000

The Zilog Z80000 , released in 1986, was an advanced microprocessor for its time .

It is a 32-bit architecture with a six-stage pipeline and a cache of 256 bytes that could be frozen by the software. There was co- and multiprocessor support.

In contrast to its predecessor, the Zilog Z8000 , the processor clocked at 4 to 20 MHz could not establish itself on the market.

Applications / developments: The Z80000 was used by Zilog itself in their Zilog System 8000 computer system . The machine was distributed with a UNIX clone and was an absolute rarity in 2010.

The Olivetti company manufactured several pilot series devices based on the Z80000 after its devices with the Z8000 as a 16-bit mid-range personal computer had sold quite well. The work was stopped in 1989.

Web links

• Technical manual Z80,000 1984 (PDF file; 12.17 MB)