310 acts as an odt the nand gate 444 outputs the logic signal g 2 at a logic high level the inverter 446 inverts the logic signal g 2 and outputs a second control signal l 2 as the result of inversion the second logic circuit 432 includes first and second selection circuits 451 and 452 and first through third output circuits 453 454 and 455 each of the first and second selection circuits 451 and 452 includes multiplexers m 1 through mk the multiplexers m 1 through mk of the first selection circuit 451 respectively select and output either bits fdrb 1 through fdrbk of the second impedance control signal fis 2 or the second control logic signal clg 2 in response to the selection control signal odts in detail when the selection control signal odts is enabled the multiplexers m 1 through mk of the first selection circuit 451 select and output the second control logic signal clg 2 the multiplexers m 1 through mk of the second selection circuit 452 respectively select and output either bits fdrb 1 through fdrbk of the second impedance control signal fis 2 or bits fodb 1 through fodbk of the fourth impedance control signal fis 4 in response to the selection control signal odts in detail when the selection control signal odts is enabled the multiplexers m 1 through mk of the second selection circuit 452 select and output the bits fodb 1 through fodbk of the fourth impedance control signal fis 4 each of the first through third output circuits 453 454 and.