---
title: "The Z280 Chip"
type: "article"
slug: "the-z280-chip"
url: "http://localhost/article/the-z280-chip/"
markdown_url: "http://localhost/article/the-z280-chip.md"
published_at: "2025-07-26T23:03:38+00:00"
modified_at: "2025-07-26T23:03:39+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "CP/M is dead; long live CP/M. Just as the funeral peroration for CP/M was fading in our ears, there came a small jubilant horn toot out ot the south-west and west (Dallas and Los Altos) reporting sightings of unusual news from Winnipeg about products from Redding and Campbell (Californias, you all!). To wit: Zilog, Inc.,…"
category:
  - name: "The Data Expansion"
    slug: "the-data-expansion"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/the-data-expansion/"
publication_r:
  id: 50143
  title: "The Data Expansion"
  type: "periodical"
  url: "http://localhost/periodical/the-data-expansion/"
authors: "Michael Rulison"
volume: "5"
issue: "3"
issues_articles:
  - id: 50245
    title: "The Data Expansion v5 n3"
    type: "issue"
    url: "http://localhost/issue/the-data-expansion-v5-n3/"
pages: "10-11"
pubdate: "March 1988"
archive_link: false
---

CP/M is dead; long live CP/M.

Just as the funeral peroration for CP/M was fading in our ears, there came a small jubilant horn toot out ot the south-west and west (Dallas and Los Altos) reporting sightings of unusual news from Winnipeg about products from Redding and Campbell (Californias, you all!).

To wit: Zilog, Inc., has (will?) release(d) the Z280 chip: a super extension of the Z80, 40+ new instructions, clock rates exceeding 10 megahertz, 16 Megabytes of memory space addressable, 8-bit Z80 bus or 15-bit Zilog Z-bus. A true 16-bit chip, but runs Z80 code.