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From: JosephKK on 20 Jan 2010 03:31
On Sun, 17 Jan 2010 10:49:48 +0000, David Chapman <dave(a)minda.co.uk> wrote:

>
>Hi,
>
> If anyone is still looking for a NECuPD7220 (40-pin ceramic DIP), I
>have an unused one in my odd-IC collection which I'll never use. Sorry,
>but I don't have any data sheet for it.
>
> E-mail me if interested - I'm in London, England.
>
> - Dave
>
>David C.Chapman - Chartered Engineer. FIET. (dcchapman(a)minda.co.uk)
>--------------------------------------------------------------------------
>CHAPMAN ASSOCIATES is a Consultancy offering practical expertise and
>design skills in the fields of counter-surveillance, electronic protection
>and security. Visit our Web site at http://www.minda.co.uk
>--------------------------------------------------------------------------

It seems to be an antique graphic display chip. Possibly similar to the
Motorola MC6845. Getting the right datasheet should not be hard.
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