The SN74CBT3383C can be used to multiplex up to 5 channels simultaneously in a 2:1 configuration. Figure 10-1 shows a 2-bit bus being multiplexed between two devices. The BE and BX pins are used to control the chip from the bus controller. This is a very generic example, and could apply to many situations. If an application requires only one bit control or exchange, then remember to tie the unused bit to high or low. By using another bus controller, exchange can be enabled across A1 and A2 to B1 and B2, allowing for greater system communication.