Crosstalk is a fact of life in modern digital systems.
We can't eliminate it, but it's our job to figure out how to control it, manage it, and just plain live with it. Consider the circuit in the figure below. Whenever the aggressor changes state, we observe a pulse of crosstalk at the victim. One of the fascinating things about crosstalk is its directionality . Crosstalk waveforms are a function of the direction of current flow.