What is the difference between a bus buffer and a bus repeater?
Repeaters will attempt to interpret highs and lows on the bus, and pass this signal to the output. To avoid latch-up, the output low of one repeater cannot be interpreted as an input low to another repeater. Therefore repeaters cannot be placed in series, restricting the architecture of the system. Buffers will not try to interpret highs and lows, but will instead track the voltage level on each side of the buffer. They therefore act in an analogue nature.
