Hallo expert,
currently, I want to put four UART(3.3V) signal from CPU to a connector which will be facing the hot plug application, just from hardware circuit point of view, how to protect the UART IO on the connector?
I don't think just put some ESD diode is enough. do I need to put the IO driver in the UART signal to isolate the CPU and Connector, and then plus the ESD protection circuit .
looking forward to get your expert opinion.
.
