8080 vs. 8080A

From: Richard Erlacher <edick_at_idcomm.com>
Date: Sun Sep 30 12:21:47 2001

This makes no sense at all, though it may be because I'm misinterpreting the way
in which you've put it.

I have Intel boards that come in versions with the i8080 and also,
optionally,with the i8080A, and, aside from the clock frequency and memory
access times, they're identical. The i8080A is essentially twice as fast as the
standard i8080 and COULD be used more easily with low-power logic since its
demands aren't as stringent.

The i8080A will, AFAIK, replace the i8080 in all applications without ill
effects.

BTW, please turn off "rich-text" mode in your email editor when you compose
messages for this group, as some folks' mail readers can't interpret the
rich-text/HTML format.

Dick
++++++++++++++++++++++++++++++++++++++
----- Original Message -----
From: John Galt
To: classiccmp_at_classiccmp.org
Sent: Sunday, September 30, 2001 10:17 AM
Subject: 8080 vs. 8080A


Can anyone here describe the technical differences between
an Intel 8080 and Intel 8080A CPU?

The ONLY ref. I have been able to find seems to indicate that there was a bug in
the 8080 and as a result it would only work with low power TTL?

The problem was fixed in the 8080A and it would work with standard TTL?

Does this make sense to anyone?

Could anyone put this into laymans terms for me?

Thanks,

George Phillips - gmphillips_at_earthlink.net
Received on Sun Sep 30 2001 - 12:21:47 BST