RE: Chip incompatibility?

ruud.baltissen_at_abp.nl
Date: 2002-09-07 09:32:43

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Hallo Daniele,

> I haven't wrote that with an original MOS 6522 the
> keyboard works well so the contacts are ok.

Yep. But the CMOS versions cannot drive as much current as the old ones. So
a slightly dirted contact could confuse the 65SC22.

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