[Coco] To Willi Kusche

Luis Antoniosi (CoCoDemus) retrocanada76 at gmail.com
Fri Mar 8 14:21:40 EST 2013


yes, but according him the labels are wrong :P

On Fri, Mar 8, 2013 at 2:09 PM, camillus Blockx <camillus.b.58 at gmail.com>wrote:

> There are different modelsof the 6809.
>
> The coco needs the 68B09E, where E is the most important value.
> It lets you know that this chip needs external clock circuit.
>
> I believe the B stands for the speed ( B= 1Mhz C=2Mhz) or the type of
> technologie ( Cmos or other ), I 'm not shure of this anymore. The
> datasheet will set this strait.
>
> So if youre device has the clock circuits on the mainboard thenyou need E
> type cpu, if not hen the 68B09 or 68C09 should work.
>
> cba
>
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>



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Long live the CoCo



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