(V_Input_B - V_Input_A) >= 1.2V.
Because of that maximum voltage allowed depend on the input:
- low side input A is constrained by chosen voltage regulator and can vary from 1.0V to 3.3V,
- high side input B is constrained to supply voltage and can be as high as 5.0V
See comparison of the correct voltages in the table below:
|Input A minimum|
|Input B supply|
A – Allowed configuration
P – Prohibited configuration. It won’t work.
Multpile channels voltage level translator can be used with the interfaces: SPI, I2C/TWI, UART or standard logic IO. Example system configurations are showed in the picture: