Tool/software:
It doesn't seem to allow 3.3V input.

The SN74LVC1G11 doesn't seem to have a positive clamp diode.
What is acceptable?
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Tool/software:
It doesn't seem to allow 3.3V input.

The SN74LVC1G11 doesn't seem to have a positive clamp diode.
What is acceptable?
There is no clamping diode to VCC. This allows input voltages above VCC without a current flowing; see [FAQ] Can the input voltage (Vi) to my logic device be higher than the supply voltage (Vcc)?
The VI specification specifies the allowed input voltages.