[sdiy] IC speed terminology

[Tim Ressel]

Yo,

If your talking memories, PALs, etc., the dash number
usually represents the speed in nS, although you might
have to interpret how many zeros to add. For example:
-45 on a newish memory chip means 45nS access time. On
an older mem IC it may mean 450nS.

On microprocessors you're hosed. The dash number could
mean anything. Best to check the datasheet.

--TR

--- Sebastian Kuehnl <skuehnl at yahoo.de> wrote:
> Hello,
> 
> 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?
> 
> Seems quite off topic, but the chips I need to
> identify are used for
> the Buchla 700 system graphics display...
> 
> Regards,
> 
> Sebastian Kuehnl
> 
>
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