Electronics 01
3.3V to 5V Level Shifter: When You Need One and Why
When a 3.3 V output already reads as HIGH at 5 V, how the BSS138 shifter works, why its 10k pull-ups fail 400 kHz I2C, and when two resistors are enough.
When a 3.3 V output already reads as HIGH at 5 V, how the BSS138 shifter works, why its 10k pull-ups fail 400 kHz I2C, and when two resistors are enough.