I am looking for the best way to transform multiple (more than 10) 12V digital signals down to 3.3V
I know some ways to do it, such as voltage dividers, make use of BJT or MOSFETs, or even Operational Amplifiers. However, such methods would require more than one component per signal, making the PCB more complex
Is there any simpler way to achieve this? Is there any commercial IC which manages the transform?
EDIT: The goal of this step down is simply to read such signals from a microcontroller (which LOW level is -0.3÷0.8V and HIGH level is 2.0÷3.45V). Hence, very small amount of current