The following documents also contain related information:
Are the output states of flip-flops, registers, counters and one-shot multi-vibrators determinate?
What is a bus switch?
Tell me about the devices suitable for use as level shifters.
What is the difference between level-shifting bus switches and bus buffers?
Do bidirectional bus buffers have any constraints on the timing of the direction (DIR), bus, and other signals?
Product web page