3 ms·
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
by jiggawatts 3y 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-CYPD4126-40LQXI.pdf https://ta.infinity-component.com/datasheet/9c-CYPD4126-40LQ...
[2] https://en.wikipedia.org/wiki/Apollo_Guidance_Computer#Other_registers https://en.wikipedia.org/wiki/Apollo_Guidance_Computer#Other...