Patent ID: 6765295
Filing Date: 2004-07-20
Classification: H03K

Abstract:
A system for multiplexing signals on a single metal layer of an integrated circuit of the type constructed from a poly-silicon layer and at least a first metal layer, comprising:a common trace within the first metal layer; first and second multiplexing circuits for connecting and disconnecting a first signal of the integrated circuit to and from the common trace; and third and fourth multiplexing circuits for connecting and disconnecting a second signal of the integrated circuit to and from the common trace; each of the multiplexing circuits responsive to a control signal such that the first and second multiplexing circuits connect the first signal to the common trace when the third and fourth multiplexing circuits disconnect the second signal from the common trace and such that the first and second multiplexing circuits disconnect the first signal from the common trace when the third and fourth multiplexing circuits connect the second signal to the common trace.