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- Path: sparky!uunet!spool.mu.edu!mixcom.com!rshark!hump
- From: hump@rshark.mixcom.com (Brian Kapitan)
- Newsgroups: comp.dcom.modems
- Subject: Re: ROM size of Supra v32bis
- Message-ID: <0-PCNews-124beta@rshark.mixcom.com>
- Date: 19 Aug 92 14:16:31 GMT
- Article-I.D.: rshark.0-PCNews-124beta
- References: <1992Aug7.041520.7580@ccsun7.csie.nctu.edu.tw> <H.5oAb9sFifao@mips.ruessel.sub.org>
- Organization: Digital Fantasy Music
- Lines: 22
-
- >> The ROMs in the SUPRA modem are 27256-12 (120ns) and 27256-55 ... This seems
- >> a little odd, but they probably just used whatever they had at hand.
- >> either way, a couple of 27256-12 or -10 ought to to the trick.
- >
- >NOT SO.
- >According to the Rockwell specs there is a "slow" and a "fast" ROM chip.
- >The fast one *has* to be a -55ns one (or faster, but I doubt there are
- >any). 55ns EPROMs are somewhat difficult to find and expensive. In any
- >case, two -12 or -10 EPROMs will not do.
-
- Sure there are. AMD (among others) makes EPROMS faster than 55ns. Other
- choices would be Cypress, Idt.
-
- Plus, i'd love to see the Rockwell data sheet, since my modem's got a pair
- of -12's. and the old roms had a fast (70ns) and a slow (>100ns)...
-
-
- ----
- We look before and after, and pine for what is not; Brian Kapitan
- our sincerest laughter with some pain is fraught; hump@rshark.mixcom.com
- our sweetest songs are those that tell of saddest 'Digital Fantasy Music'
- thought. -- shelley
-