Subject: Re: More ZipGS Q's: The RAM
Message-ID: <36C00B98.401F@intergate.bc.ca>
Date: Tue, 09 Feb 1999 02:19:06 -0800
From: Wayne Stewart <waynes@intergate.bc.ca>
Reply-To: waynes@intergate.bc.ca
X-Mailer: Mozilla 3.0 (Macintosh; I; 68K)
MIME-Version: 1.0
Newsgroups: comp.sys.apple2
To: Martin Gruen <mgruen@shell.fastlane.net>
References: <E1217A802FDD3C4B.36D67B88DE787A54.3DB499A95BCBAE16@library-proxy.airnews.net>
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
NNTP-Posting-Host: tc1s24.intergate.bc.ca
Lines: 32
Path: lobby!newstf02.news.aol.com!portc01.blue.aol.com!newsfeed.direct.ca!news.vphos.net!carrera.intergate.ca!tc1s24.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