SPBT2632C2A Operating Voltage Related
Recommended operating conditions: -



Page 10 of the data sheet.

This does not mean that you can power it from 3V3 and feed logic signals that are 5V compatible. Use a potential divider to drop 5V logic signals to the device. Using the table above, you need to drop the logic level to nominally 2.1 volts although the spec isn't very clear.