TC7PCI321xMT/TC7PCI341xMT Mux/Demux Switches Toshiba TC7PCI321xMT/TC7PCI341xMT 2:1 Multiplexer/Demultiplexer Switches are 2 (TC7PCI321xMT) or 4 (TC7PCI341xMT) differential channel switches for PCI Express Gen3 (8Gbps) or other high-speed interface applications. The An+/An- inputs are connected to the Bn+/Bn- or Cn+/Cn- outputs determined by the combination of both the select input (SEL) and output-enable (OE). When the output-enable (OE) input is held high-level, the Toshiba switches are open (high-impedance state) regardless of the state of select inputs and reducing consumption current. All inputs are equipped with protection circuits against static discharge.