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Looking for MM5740 datasheet (keyboard encoder)

Xp + Fup2 s.e.components

Hello,

does anyone have a datasheet of the MM5740 keyboard encoder, formerly made by NSC (around the late 70s)? It was used in early versions of the Apple II, but later replaced by another encoder since it became obsolete...

Thanks,

--
Dipl.-Ing. Tilmann Reh
http://www.autometer.de - Elektronik nach Maß.
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Tilmann Reh
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