in the datasheet.
What is the minimum High voltage Threshold for these logic pins?
The RCin/RCsel input is a standard digital input and has the same threshold
levels on the ADuM6000 as the inputs on the AduM6400, AduM6401 and other
ADuM640x parts. These specs are provided in the ADuM640x datasheets and should
also have been included on the ADuM6000 datasheet.
VIH = 0.7 x VDD1 (minimum)
VIL = 0.3 x VDD1 (maximum)