Arm Mbed OS support forum

Strange element

Hello all. Please help me, what it is?


Inverter (logic gate) - Wikipedia

BR, Jan

Thank you.
How do you think this element will fit here?74HC14D

I do not know I am not an engineer. But If the data from datasheet are ok with your requirements…
Logic NOT Gate Tutorial with Logic NOT Gate Truth Table (
BR, Jan

The alternative (provided the UART is 5V tolerant) is to modify the circuit a little to use a NPN transistor: