My customer is considering to replace a 4ch(4:0) digital isolator to ISO7730.
They actually use only 3ch although they are using 4ch version.
Now pin 6 is directly connected to GND because they don’t use this channel and they don’t want to change the layout.
Now pin 6 of ISO7730 is NC pin.
Is it acceptable to connect this Pin 6(NC) of ISO7730 to GND directly?