8080 vs. 8080A

From: Michael Holley <swtpc6800_at_home.com>
Date: Sun Sep 30 17:29:32 2001

Intel did not refer to clock frequency but to Instruction Cycle to indicate
the speed of the chip. From Intel Component Data Catalog 1978 page 11-11

8080A 2 us
8080A-1 1.3 us
8080A-2 1.5 us

My SDK-80 Users Guide has schematics dated July 1975 and show an 8080A.

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Michael Holley
holley_at_hyperlynx.com
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Received on Sun Sep 30 2001 - 17:29:32 BST

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