Thanks guys for your help,

I found it very interesting. Nevertheless the proposed 8051 are too expensive, too complicated. I mean, I am searching for a micro with some internal memory (RAM, Flash or EEPROM), and internal EPROM (fro the program), and the last integrated WD and reset.

I thought it should be esay to find it, and it is, but most of them have a lot of DAC, counters, that make them too expensive.

Who makes simple micro 8051 ?
(a rethorical question maybe)

Chuchi