[Coco] OT: 63B09

[T. Franklin]

I could be wrong but don't you need a 6809E for a CoCo? I think the NTE6809E would be the replacement. There are differences in the chips with respect to the xtal but it's been way too long for me to remember such details.

-Pilot


-----Original Message-----
From: Louis Ciotti [mailto:lciotti1 at gmail.com]
Sent: Saturday, October 29, 2011 12:48 PM
To: coco at maltedmedia.com
Subject: Re: [Coco] OT: 63B09

I can across an NTE6809 processor and thought I would give it a try as areplacement for the 63b09. It has an identical Pinot so I figured it maywork. I plug it in the socket, and I get nothing at all. The externalclock (4mhz) crystal does not even work, which on the one I am trying toreplace does. Is the IC bad, or is it a compatibility issue.On Thursday, October 20, 2011, Louis Ciotti  wrote:> Off topic, but since the CoCo uses 6809s, figured someone on here mightknow about this.>> I have a radio controller from circa late 80s that uses a 63B09 that Ithink may be bad. What can I use in its place and is there a source?>> The problem I am seeing is RN6(Pins 24-31) has some "noise" on the lineand the waveform is not exactly square like the rest of the data lines whenobserved with an oscilloscope.>--Coco mailing listCoco at maltedmedia.comhttp://five.pairlist.net/mailman/listinfo/coco