A six-input multiplexer is disclosed using only two transistors in the signal path from an input port to the output port. The multiplexer uses control signals that are not decoded. The multiplexer uses three control signals and requires that the control signal combinations 000 and 111 not be used....http://www.google.de/patents/US5744995?utm_source=gb-gplus-sharePatent US5744995 - Six-input multiplexer wtih two gate levels and three memory cells
