---
title: "WD1770/1772 5 1/4″ Floppy Disk Controller/Formatter (Data Sheet)"
type: "article"
slug: "wd1770-1772-5-1-4-floppy-disk-controller-formatter-data-sheet"
url: "http://localhost/article/wd1770-1772-5-1-4-floppy-disk-controller-formatter-data-sheet/"
markdown_url: "http://localhost/article/wd1770-1772-5-1-4-floppy-disk-controller-formatter-data-sheet.md"
published_at: "2026-01-23T12:54:04+00:00"
modified_at: "2026-01-23T12:54:05+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
publication_r:
  id: 49591
  title: "FDD Newsletter"
  type: "periodical"
  url: "http://localhost/periodical/fdd-newsletter/"
issues_articles:
  - id: 49633
    title: "FDD Newsletter v1 n4"
    type: "issue"
    url: "http://localhost/issue/fdd-newsletter-v1-n4/"
pages: "3-21"
pubdate: "September 1991"
archive_link: false
---

# WD1770/1772 5 1/4″ Floppy Disk Controller/Formatter (Data Sheet)