AVR-Chat

Peter Gargano wrote:
> stevech@san.rr.com wrote:
> 
>>*RS232C is such that if the voltage swings +/- 6V it is in compliance.*
 >
 > But may receivers will work at a swing of 0 to 5 volts.
 >

Maybe, but what about max speed reliability? Negative drive removes transistor
base charge faster.