Crossbar structure with mechanism for generating constant outputs

Embodiments provide crossbar structures, and reconfigurable circuits that contain crossbar structures, that include n inputs and an output, where n is an integer, chains of transistors coupled to the n inputs and the output, a plurality of control signal elements-each coupled to one or more transistors of the plurality of chains of transistors to selectively couple said n inputs to the output-and an additional chain of transistors coupled to at least some of the plurality of control signal elements and the output to selectively couple a constant output voltage to the output. Other embodiments may be disclosed and claimed.