Some embodiments include a first circuit to drive signals at first circuit output nodes, and a second circuit to generate output signals at second circuit output nodes. The second circuit includes a first transistor coupled between a supply node and a first node of the second circuit output nodes and a second transistor coupled between the supply node and a second node of the second circuit output nodes. Each of the first and second transistors includes a gate coupled to one of the first and second nodes. Other embodiments including additional apparatus, systems, and methods are disclosed.