TXB0104-Q1: If a set of input signals is not used, can it unconnected?

Part Number: TXB0104-Q1

Tool/software:

Use TXB0104QRUTRQ1

If a set of input signals is not used (EX A4 and B4),

Can A4 and B4  unconnected (NC)? or recommend to VCC? gnd?