PCA9546A: VOH(min), VOL(max)(for I2C)

I²C uses open-drain signals, so the chip never outputs a high signal. The high-level voltage is determined only by the pull-up resistors.

V_OL is specified as the test condition for I_OL.

The connections to the four channels are done with passive switches. The voltage drop over the switch depends on R_ON and the current through the switch.