Reviewing Fig. 16.62, is it necessary that the gates of the floating gate MOSFETs connected to RA1 - RA3 be driven to 5 V? Can the gates of these MOSFETs remain grounded? Why or why not? If the RA1...

Reviewing Fig. 16.62, is it necessary that the gates of the floating gate MOSFETs connected to RA1 - RA3 be driven to 5 V? Can the gates of these MOSFETs remain grounded? Why or why not? If the RA1 MOSFET is to be programmed, in this figure, must the gate of RAO be driven to 5 V?