Re: fastest CPU in DIP format?

From: Aubrey McIntosh (spam_at_spam04.vima.austin.tx.us)
Date: 02/22/05 

Date: Tue, 22 Feb 2005 13:29:44 -0600

hamilton wrote:

> Why do there YoYos think they can get something for nothing.
>
> You might be able to get a 68010 in a 48 pin dip package working.
>
> But why ?????
>
> If you just do a little homework you will find even the military is
> using surface mount packages. And the get shot at !!
>
> Its time to come into the 21st century.
>
>
>
> Yef wrote:
>
>> Hi all,
>>
>> I'm looking for an over-the-counter microprocessor
>> to run Linux on. However I want to be able to construct
>> the circuitry myself, so I will need a CPU that is
>> in a package that mere mortals can work with. My assumption
>> is that that would be a dual-inline package since that's
>> what I've used in the past. But when I look at the Jameco
>> and JDR catalogs I see just slow 8-bit CPUs. Can anyone
>> point me to something more interesting, such as an
>> system on a DIP chip type of thing?
>>
>> Thanks.
>>

Well, the OP didn't say whether he just wanted to build it for the
satisfaction, he has special needs that he thinks he can handle best,
or some other reason. Hopefully, indeed, it is not to save money.

I hand wired an 8MHz 68000 board with SRAM. Later put the schematic
into EAGLE just to gain the skill. Since the early SUN workstations
were running 'nix on a 68000, it seems feasible to make Linux go there.

There was also the AT&T 3B2 unix machine, which was as I recall a 68010
machine. Presumably it ran real Unix.

A machine that I like is the LG860A. The folks I bought it from use
Linux, but I am using an experimental OS (http://bluebottle.ethz.ch)
and it runs from a CF onboard. The board has a "no moving parts"
version that has a heat sink instead of a fan. It is supposed to use
only about 14 Watts, and I think it is rugged enough to go into an attic
in Texas (although I think one of the electrolytics in the switcher runs
  a little warm.) It is about half the volume of a freshman chemistry
textbook. I haven't tried to break it, but it looks pretty rugged.

I have been thinking that the PIC 18F line has a lot of oompf. I
haven't put it to pencil, but I have wondered if it has a much power as
the original IBM PC (pre-XT, their first pc machine.)

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