Date: Tue, 26 Jul 2016 09:21:14 +0200
Message-Id: <>
> On 2016-07-26, at 08:33, Baltissen, GJPAA (Ruud) <> wrote:
> Hallo allemaal,
>> The only reason I can think of is that they wanted to somehow differentiate ....
> The reason is much more simpler. The first 6500 was completely pin compatible with the 6800. Motorola objected, sued MOS and won. So MOS had to change the pin order. I don't know if the names of the pins were involved as well but I can imagine that they changed them as well to be on the sure side. It certainly wouldn't hurt.

But the 6501 I quoted description for is the 6800 pin compatible one. Actually the one that had to be later dropped as part of the settlement with Motorola. Yet this one pin name is changed already there.

Well.. never mind, I guess :-)

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