When IOVDD = 3.3V,
MAX Digital Input Voltage is 3.3V or 3.3V+α or 3.96V？
（ I hope 3.3V+α or 3.96V）
Please see the note which is following with the Table 14. The 3.96V is the voltage of absolute maximum rating. If the real voltage exceed 3.96V, it may cause permanent damage to the deice.
As to the guaranteed voltage of working correctly, the input voltage shouldn't exceed the IOVDD. The range of IOVDD is 1.8~3.6V.
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