[sdiy] IC speed terminology

[John Speth]

> What are the speeds indicated by the following suffixes (suffices?):
> 
> '-10' and '-14' in Intel nomenclature;
> '-4S' in MHS (Matra Design Semiconductor) nomenclature.
> 
> All I know is that with MHS chips, '-3' and '-4' indicate speeds of
> 10 and 11 MHz. Is there something like a catalog or dictionary about
> this?

"Speed" means different things depending mostly on the anticipated use of
the device.  Data sheets usually contain information on how to decode and
specify speed.  The only convention I've seen is that a suffix might provide
a clue to the speed (like access time or max clock freq) but there's no
official standard that I know of.

John Speth
mailto:johns at molectron.com 
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