[comp.arch] 68882

apollo@ecf.toronto.edu (Vince Pugliese) (02/23/88)

 has anyone out there in 680x0 workstation land yet attempted
to replace the 68881 with a 68882 as was done by some writer in
Byte a few months ago? it would be interesting to see if, first
people have actually gotten hold of one of these chips, and as important if
the swap was as smooth and as profitable as the Byte article suggested. by the
way, does anyone have an idea as to the cost of these chips in small (non-OEM) 
quantities.
                                                 vince pugliese
                                                  appolo@ecf.toronto.edu
                                               (oops!) apollo@ecf.toronto.edu

schmitz@FAS.RI.CMU.EDU (Donald Schmitz) (02/25/88)

|has anyone out there in 680x0 workstation land yet attempted to replace the
|68881 with a 68882 as was done by some writer in Byte a few months ago? it
|would be interesting to see if, first people have actually gotten hold of
|one of these chips, and as important if the swap was as smooth and as
|profitable as the Byte article suggested. by the way, does anyone have an
|idea as to the cost of these chips in small (non-OEM) quantities.

We just placed an order for sample parts, Motorola claims they are
available.  I'll post results if/when the parts actually arrive.  Prices I
got were ~$400 for 20 MHz and ~$550 for 25 MHz.  We are going to try a 25
MHz part in a SUN 3/260, SUN claims their UNIX can handle it (SUN 3/200s
come with 20 MHz 68881s, but a 25 MHz FPU clock is jumper selectable).
Given the clock speed up and estimates for the '882, we are hoping for a
50% floating point improvement.

Don Schmitz (schmitz@fas.ri.cmu.edu)

upton@ole.UUCP (Mike Upton) (02/26/88)

The Feb 15 issue of Computer Design Magazine has a directory of
microprocessors and support chips.
They quote the following prices:

	68881:		$113 	quantity 100
	68882:		$198 	quantity 100
	68020:		$135 	quantity 100
	68030:		$283 	quantity 100

The speed version for these prices is not quoted.
I presume these prices come from Motorola.

-- 
Michael Upton@Seattle Silicon (uucp: ...uw-beaver!tikal!ole!upton)
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