ЭБУ Батареи - немного более подробно

NEC Микроконтроллер - http://pdf.datasheetcatalog.com/datasheet2/8/0u172j9q99qu4fqago9zac6pj7fy.pdf RA57 - память EEPROM C451G - цитата The part is an NEC uPC451G. It's an analog quad op amp, bipolar. It has some interesting characteristics:

1. Input voltage can go from 0.3 V less than the negative supply terminal to 32 V above the negative supply terminal. If you go below, it doesn't look good. Interesting that the positive overvoltage is not dependent upon the positive supply voltage, which is a good thing in case of power faults, I guess.
2. It can take a short out the output of the op amp forever. That's good. And a bit unusual in that regard.
3. Temperature range on the standard part is -40 to +85C; the extended range part goes from -40 to +125C, not shabby.
4. Bipolar part, so no CMOS latch-up.