The CBTLVR16292 is a single 12-bit multiplexing / demultiplexing bus switch, which provides high speed switching. Both A and B ports have 25 series dampening resistors to minimize undershoot, reflection noise, and charge sharing effects. The demultiplexer side has a 500 resistor termination to GND to eliminate floating nodes. When the select (S) input is low, the A port is connected to the B1 port, and the R pulldown is connected to the B2 port. Similarly, when the S input is high, A port is connected to B2 port and the R pulldown is connected to B1 port.