Hacker News new | ask | show | jobs
by jiggawatts 913 days ago
The most powerful chip in the list (Cypress CYPD4126) has 30x general purpose I/O pins.[1]

AFAIK, this is typical of USB controller chips, which generally have about 20-30 I/O pins, but I’m sure there are outliers.

The AGC seems to have four 16-bit input registers, and five 16-bit output registers[2], for a total of 144 I/O pins total.

[1] https://ta.infinity-component.com/datasheet/9c-CYPD4126-40LQ...

[2] https://en.wikipedia.org/wiki/Apollo_Guidance_Computer#Other...