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From: daveh@cbmvax.UUCP (Dave Haynie)
Newsgroups: comp.sys.mac
Subject: Re: PMMU Speeds
Message-ID: <8129@cbmvax.UUCP>
Date: 10 Oct 89 00:05:29 GMT
References: <15944@dartvax.Dartmouth.EDU>
Organization: Commodore Technology, West Chester, PA
Lines: 21

in article <15944@dartvax.Dartmouth.EDU>, thomas@eleazar.dartmouth.edu (Thomas Summerall) says:

> Do PMMU's come in different speeds?  

Yup.

> If so, how do I know what speed this one is?

Read the part.  A 16MHz part will say something along the lines of

	MC68851RC16A
		 ^^
			This last part's the speed.

The slowest 68020 family parts are 12MHz, the fastest 40MHz, though I don't
know if MMUs are available in the full range of speeds.  The part you need
is 16MHz; a slightly faster part will usually work.
-- 
Dave Haynie Commodore-Amiga (Systems Engineering) "The Crew That Never Rests"
   {uunet|pyramid|rutgers}!cbmvax!daveh      PLINK: hazy     BIX: hazy
                    Too much of everything is just enough