Hi @FAR1234,
Yes. S32K1 can operate at 3.3V. It supports an operating supply voltage range from 2.7 V to 5.5 V. This means it can run on either 3.3 V or 5 V, depending on your design requirements.
You can refer to chapter 5.3 from S32K1xx Data Sheet for 5.3 DC electrical specifications at 3.3 V.
Best regards,
Julián