I am planning to turn on SN74HCS138 using MSP432P4111 GPIO pin i.e. give 3.3V as Vcc to the demux from a GPIO pin of my controller. I will be using multiple demuxes in a way that I can turn on and off each device using the controller. The max Icc (supply current) as mentioned in demux datasheet at 6V is 2uA and this can be comfortably be provided by MSP432P4111.
1. Is there any pitfall to this approach ?
2. Any other consideration I need to keep in mind in this design?