Table of Contents




  • Single (15192×14949, 66.97MB)

Additional Information

The uPD7220 was designed by Tetsuji Oguchi, and information and schematics for the 7220 and 7220A can be found on his website:

The schematics are at

The patents for certain covering the the 7220 are: 4,459,676 - covers the accelerated bresenham curve drawing scheme

Other patents which probably cover the 7220 are: 4,356,482 4,491,834 4,545,014 4,570,222

mcmaster/nec/d7220d.txt · Last modified: 2021/05/28 02:34 (external edit)
Except where otherwise noted, content on this wiki is licensed under the following license: CC Attribution 4.0 International
Recent changes RSS feed Donate Powered by PHP Valid XHTML 1.0 Valid CSS Driven by DokuWiki