To which supply voltage should the MSEL0, MSEL1, and nSP pins be tied if VCCIO is tied to 3.3 V?

Description

Because the transistor threshold voltage level is 2.4 V, the MSEL0, MSEL1, and nSP pins can be connected to either a 3.3-V or 5.0-V supply. However, the devices power consumption will differ slightly depending on the voltage level connected to the pins because a transistor with its gate connected to 3.3 V and its source connected to 5.0 V will not be completely in the cut-off region.