For SN55LVCP22-SP’s Propagation delay, it appears that the typical is 650ps but can vary 200ps to 2350ps. Is this range determined by part variation alone, or is this a culmination of part variation, temperature, EOL and radiation effects? Will the propagation delay from part to part in the same environment vary from 200ps to 2350ps? Could this variation be minimized for two ICs on the same board that would undergo nearly identical environmental variations?