Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!cwjcc!hal!nic.MR.NET!xanth!mcnc!unccvax!dya From: dya@unccvax.UUCP (York David Anthony @ WKTD, Wilmington, NC) Newsgroups: sci.electronics Subject: Re: 68000 Chips Message-ID: <1273@unccvax.UUCP> Date: 7 Dec 88 14:42:46 GMT References: <2196@lll-lcc.llnl.gov> Organization: Univ. of NC at Charlotte, Charlotte, NC Lines: 33 In article <2196@lll-lcc.llnl.gov>, rzh@lll-lcc.llnl.gov (Roger Hanscom) writes: > > In item <12169@cup.portal.com> Jeff_A_Scott@cup.portal.com > writes: > > >I'm looking for a low-priced source of Motorola 68020 processors. > >I just want one (and a 68881 co-processor) and I've looked in all the > >common places (back pages of Byte, etc). Since this is a ~$300 purchase > >the best price is important. Anyone know a cheap place? If you are on good terms with your local Schweber or Hamilton-Avnet rep (or other Motorola distributor) they should be able to secure a 12.0 mHz processor in the $80-$120 range. They are jellybean parts now. (I think I paid $135 for MC68020RC12 last summer, which is still awaiting the breadboard!). For the coprocessor, you are on your own. Try and get prime parts, anyway. I can't believe that most of the junk in the back of consumer fishwrappers were obtained from legitimate sources. (We've bought some, er, grey-market RAM chips from ads in magazines (they take MC &Visa, hey, what can I say) and while they meet the speed spec, they usually do not meet the speed at power dissipation spec.) 68008's from a **well known** mail order place (Mostek brand) have an off-spec failure of about 1 part in 25. DUARTS (MC68681) were even **worse**. If at all possible, get prime parts. Saving money on off-spec devices, fallouts, cull-outs, call 'em what you will, is false economy. York David ANthony WKTD Wilmington, NC