Yes, 6450 has been replaced by 6564 (they say it's a little bit more
advanced and a little bit harder to program (?!)). And they have databooks
ready to be sent out at 800-366-9782 (semiconductors,literature). Nothing in
PDF at the website, though.

Gennady Palitsky
Jefferson Audio Video Systems
gennadyp@mainlink.net


>I've used the UPD6450, it has now been dropped from production but is
>still currently available while stocks last!. Datasheets are very hard
>to obtain, I haven't been able to find them on the NEC web site - but I
>did get one (EVENTUALLY!!!!) for it's replacement from the NEC
>distributers in the UK, but am still waiting for actual samples of the
>chip :-(.
>--
>
>Nigel.