The IBIS model of the TXB0104 has two sets of models; the weak and the one-shot model. The weak model output pin behaves very strange, even with very high impedance load and a well-defined input signal, see pictures below.
Is the model faulty? How can I get the model to work correctly?
A slow pulse gives a weird output result for the TXB0104, even with a very high load impedance:
