Funny specification for CMOS input for microcontroller, unused inputs and slow transitions

te:

ction

cuit to malfunction (device malfunction)

put, so they can have excessive current in the input stage due to cross con duction

other devices)

cit

g the

dard

than 5-V tolerant ports while the device is not powered.

I/O pull-up may cause malfunction and the abnormal current that

l elements.

will not cause problems such as damage to the MCU.

f a

at;

Well you do need to remember that I surf on the trailing edge of technology . :^) I did this years ago... it was the one comparator we had in stock.

George H.

ften use B340-type 3A Schottkys. Ideally it would be able to take the full fault current of the regulator without dropping enough voltage to turn on a nybody's substrate diodes. (Normally you don't really need that much stooc h, but start there and work down.)

Thanks Phil, I clearly need to get some beefer Schottkys.

George H.