Question 3 0.5 pts What output method would you use if you want to interface the STM32L4 (ARM Cortex-M4) to a chip that operates at 24 V? O Open-drain Schmitt-trigger Push-pull Analog Question 4 0.5 pts What is the slew rate if it takes 4 ns for a signal to go from Low to High in a 5 V system? O 1.25 GV/sec O 0.8 V/sec O 0.8 GV/sec 1.25 V/sec