I used TMUX1219 to direct the input (at pin D) to one of two paths (S1 or S2), however, I notice that if I applied '1' at D, it is somehow being pulled to '0' (I don't see more than 0.4Volts).
I concluded the MUX is what is pulling it down because I de-popped R37 and I measured the correct voltage at the pad connected to the source
Given: when I probe VDD, GND, and IO pins, they all have correct voltages
- Is there anything wrong with that design?
- Any quick fix?
