There is some info over the net regarding 'some i8080 bugs were fixed in i8080a', but the exact bugs and differences are not usually disclosed. So, what is the exact difference between i8080 and i8080a?

1 Answer 1


I googled for the same question and the only possible answer I found was that the 8080 wasn't able to connect to standard TTL (only to low power TTL). The 8080A was.

  • 2
    Perhaps you want to quote the relevant portions of the answer here, as well as the original author, in case the link goes down?
    – Cody Gray
    May 7, 2017 at 11:22
  • @Cody Gray: I prefer not to do that since the reference is a (long) discussion between persons that do not agree entirely.
    – EL Dendo
    May 7, 2017 at 19:06
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    @ELDendo In situations such as this I usually use lots of ellipsis ([...]) and insertions for context [insertion].
    – wizzwizz4
    May 7, 2017 at 19:31

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