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From: jb10320@uxa.cso.uiuc.edu (Desdinova)
Newsgroups: comp.sys.apple2
Subject: Re: ASIC and Transwarp
Message-ID: <1990Oct5.155249.4986@ux1.cso.uiuc.edu>
Date: 5 Oct 90 15:52:49 GMT
References: <520@fawlty.towers.oz>
Sender: news@ux1.cso.uiuc.edu (News)
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In article <520@fawlty.towers.oz> johnmac@fawlty.towers.oz (John MacLean) writes:
>I for one have my money waiting for a 17 MHz ASIC 65816 if they can ever
>produce. Given that they are supposed to meet power supply requirements
>for the Transwarp, all you need to replace are the processor, the
>crystal, and the static RAMs to get upwards of 13 MHz.
>According to the article recently posted, 15ns static RAMs are required
>at 13 Mhz; does anyone know just how fast you can get static RAMs, how
>expensive they are, and just how fast would you have to go to get even
>faster speeds out of the Transwarp (say around 15 - 17 Mhz)? 

   There are beasties out there called "ECL RAM" (Emitter coupled Logic)
that operate in the 6-8ns range.  That's SIX to EIGHT, not 68.
They are somewhat expensive, however.
   In any case, going from 13-17mhz would require only a few extra ns.

>John MacLean.
>-- 
>This net: johnmac@fawlty.towers.oz.au                   Phone: +61 2 427 2999
>That net: uunet!fawlty.towers.oz.au!johnmac             Fax:   +61 2 427 7072
>Snail:    Tower Technology, Unit D 31-33 Sirius Rd,     Home:  +61 2 960 1453
>          Lane Cove, NSW 2066, Australia.


--
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jb10320@uxa.cso.uiuc.edu    |      The gin, the gin, glows in the Dark!
                            |                             (B O'Cult)
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