HP Nanoprocessor

[mfleming]

I found an interesting blog post on the HP nanoprocessor that was used in a number of HP instruments. Developed in 1974, it was a contemporary of the 6800 and 8080 microprocessors. The article goes into a great deal of detail on the architecture and fabrication process for the part, including the reverse engineering of the design from the fab masks. I'm posting this in the not-quite-but-related group due to the use of the processor in 98xx desktop plug-in modules and its instruction set.

http://www.righto.com/2020/09/inside-hp-...speed.html

The article is posted in Ken Shirriff's blog, which is well worth a visit for the other chip teardown related articles.

Enjoy!
~Mark