A digital logic device used as a switch in an integrated circuit chip. When there is a logic low on the control line, the device acts as a closed switch with the in and out lines connected, a low on the in line produces a low on the out line, and a high on the in line produces a high on the out line. When there is a high on the control line, the device acts as an open switch, placing a high impedance between the in and the out lines.