Re: MC68K's on DEUNA's

> On Mar 26, 2017, at 3:58 PM, Noel Chiappa via cctalk > wrote: > >> From: Bill Gunshannon > >> I doubt Motorolla was in the business of custom making different size >> chips, even for DEC. > > So, that triggered a question in my mind: why was DEC using the 68K on this

Re: MC68K's on DEUNA's

> From: Bill Gunshannon > I doubt Motorolla was in the business of custom making different size > chips, even for DEC. So, that triggered a question in my mind: why was DEC using the 68K on this board, anyway? They had plenty of in-house chips the could have used, e.g. the J11. The

Re: MC68K's on DEUNA's

On 03/24/2017 04:02 PM, Paul Koning via cctalk wrote: >> On Mar 24, 2017, at 1:40 PM, allison via cctalk >> wrote: >> >> ... >> The 68K came in two major forms one was 16 bit bus the other was 8bit bus. > Isn't that the 68008? Ah yes. Its still logical 68K and the 8bit

Re: MC68K's on DEUNA's

> On Mar 24, 2017, at 1:40 PM, allison via cctalk wrote: > > ... > The 68K came in two major forms one was 16 bit bus the other was 8bit bus. Isn't that the 68008? paul

Re: MC68K's on DEUNA's

On 03/24/2017 01:19 PM, John Wilson via cctalk wrote: > On Fri, Mar 24, 2017 at 12:44:37PM -0400, Noel Chiappa via cctalk wrote: >> So all the DEUNA's I've seen have L10 (ceramic package, 10Mhz) 68K's in them. >> Has anyone tried using anything else, and did it work? >> >> I _assume_ an x12 would

Re: MC68K's on DEUNA's

On 03/24/2017 12:44 PM, Noel Chiappa via cctalk wrote: > So all the DEUNA's I've seen have L10 (ceramic package, 10Mhz) 68K's in them. > Has anyone tried using anything else, and did it work? > > I _assume_ an x12 would work, but until someone has acutally tried it... > > The Pxx's (plastic

Re: MC68K's on DEUNA's

On 2017-Mar-24, at 11:06 AM, Paul Koning via cctalk wrote: > Which makes sense; DIP packages (independent of material) are designed to a > small set of standard dimensions. 0.1 inch lead pitch, pin spacing 0.300 or > 0.400 or 0.600 or similar round numbers. One (perhaps the singular)

RE: MC68K's on DEUNA's

> From: Bill Gunshannon > Considering that I have never seen any sockets that were 2mm different > in width ... I really can't imagine any CPU not fitting. I think you're right. I took another look at the drawing, and I'd been looking at the package width dimension: there's also a

Re: MC68K's on DEUNA's

arch 24, 2017 1:43 PM > To: cctalk@classiccmp.org > Cc: j...@mercury.lcs.mit.edu > Subject: Re: MC68K's on DEUNA's > > > From: John Wilson > > > I think this is DELUA? > > Yes, that's right - sorry! > > > I'm getting old ... could have it wrong. >

Re: MC68K's on DEUNA's

> On Mar 24, 2017, at 12:44 PM, Noel Chiappa via cctalk > wrote: > > So all the DEUNA's I've seen have L10 (ceramic package, 10Mhz) 68K's in them. > Has anyone tried using anything else, and did it work? > > I _assume_ an x12 would work, but until someone has acutally

RE: MC68K's on DEUNA's

From: cctalk [cctalk-boun...@classiccmp.org] on behalf of Noel Chiappa via cctalk [cctalk@classiccmp.org] Sent: Friday, March 24, 2017 1:43 PM To: cctalk@classiccmp.org Cc: j...@mercury.lcs.mit.edu Subject: Re: MC68K's on DEUNA's > From: John Wil

Re: MC68K's on DEUNA's

> From: John Wilson > I think this is DELUA? Yes, that's right - sorry! > I'm getting old ... could have it wrong. No, _I_'m the one who's getting old! (But in this case, that's not it - I always get the names of those two mixed up!) > I'd be inclined to just try it. I hadn't

Re: MC68K's on DEUNA's

On Fri, Mar 24, 2017 at 12:44:37PM -0400, Noel Chiappa via cctalk wrote: >So all the DEUNA's I've seen have L10 (ceramic package, 10Mhz) 68K's in them. >Has anyone tried using anything else, and did it work? > >I _assume_ an x12 would work, but until someone has acutally tried it... I don't know,