Re: More ZipGS Q's: The RAM

[Wayne Stewart <waynes@intergate.bc.ca>]

Martin Gruen wrote:
> 
> 1)  I called AMT international today and asked for a price on the 32 kb x
> 8 sram at 15ns.  I was asked which kind (okay the next bit is vague I
> didn't understand much with the guy's accent).  The dip at 3.3v or the 15
> dip he said the difference is the length of the pins.  Anyone understand
> this and can clue me in?

I don't know that one.
 
> 2)  I know there is a difference between what the Ram does on the card,
> but am I correct that all four sockets use the same kind of RAM?  At
> present I have two different chips on mine.

The ZipGS uses the same kind of RAM in all 4 sockets. The 
reason why you have different RAM is the speed. I believe 
it was the Data RAM that didn't have to be as fast as the 
Tag. Wide sram at speeds faster than 70ns are hard to come 
by. 
 
> 3) HELP ID THIS:  I bought my zipgs from alltech 2 years ago.  The RAM on
> board reads as follows:  KM 62256 ALP-10L   214B Korea
> And the second chip is:  (Integral Sign)dt  71256   S45P (Delta)  8937M
> They run at 32 K, but can anyone tell me what speed these are?  That is
> will I need to replace these with 15ns chips or are they already?

KM 62256 ALP-10L  - 100ns

71256   S45P      -  45ns


    Wayne