Other Parts Discussed in Thread: SN74LV1T02
I downloaded the Pspice behavioral model for SN74LV1T04.
.SUBCKT Y A B VCC AGND
XU1 Y A B VCC AGND LOGIC_GATE_2PIN_OD_LVC_2i_NOR_PP_CMOS_SN74LV1T02
.ENDS
etc.
It loaded and ran in LTspice without errors or warnings.
I guess the subcircuits it contains are all standard Spice?
The simulation shows that the input have to pass a threshold voltage (VIH) of 2.5V to toggle the output of the inverter (VCC = 5V).
But according to the datasheet is VIH = 2.02 for VCC=5V.
"VCC = 4.5 V to 5.0 V 2.02 2.03"
Why doesn't the model show this behavior which I guess is why it is called a level shifter in the first place?