Thanks all
for suggestion, it's 2 days I am looking
documentation and other, there are differents chip on internet, but I not found something, until now, I have see different supplayer, I am sure at end, I find what I need, the problem is the time, but in a forum, 8052.com there are many specialist whith experience, and I am sure, can suggest which chip are able for my new project.

I have a keyboard 12 key, display 4 digit, and 4 command buttons, and last
more important, I have a potentiometer, for absolut position for a small DC motor, so I need one analog input, 12/14 bit, for potentiometer position. For output motor I use 4 digital output.
I have find 87LPC769 (20) pin Philips,
it's approximately for that, but it's not enough
Regards
Maurizio