I used for my design the MC9S12A128BCPV microcontroller with mask 0L85D. No problems. Design was well tested. Device manufactured for past two years. Now purchasing both microcontrollers with mask 1L59W.
Unit with such microcontroller doesn't work in temperatures below 0. I observe random ROM or RAM errors and get random resets. I have the same symptoms on the bigger quantity of samples. I checked the design again and everything seems ok.
Does anyone faced similar problems with this device? Any suggestions?