Thanks IanP for providing link to Maxim's microcontroller info. It seems to be a good microcontroller.
I understand that it has an option of switching off ALE, when not needed, to reduce noise emissions.
However, I want to know, how good is it as far as noise immunity is concerned. Has anyone used it successfully in designs for highly noisy industrial environments?
Thanks gorkin for your suggestion about Atmel's AVR series. Some of my friends have used AT90S2313 and AT90S8515 from AVR series and found them to be inadequate (only marginally better than Atmel's 8051 based micros) for noisy industrial environments. Is the ATmega series any better in this regard?
I need to use 32K bytes (128K bytes with full options) RAM for my control application. I believe it will be cost effective to use a good micro + external RAM combination than a micro with very large in-built RAM.