Splitting a 5V digital signal in two, for two different ICs
Almost surely, assuming the Hall switch has a push-pull output, but the answer depends on whether the Hall switch can drive both inputs in parallel (the pulldown resistance). Usually those pulldown resistances represent a very light load and are only there to assure a low level is read when the input is disconnected.
Some Hall switches are open-collector and require a pull-up resistor, at which point it gets a bit dicier because the pull-up has to be high enough that the Hall switch can drive it, and low enough that a &quot;high&quot; registers as such with both the MCU and the motor driver.