Signal distribution circuitry for use in an integrated circuit, the signal distribution circuitry comprising: first and second output nodes, for connection to respective output signal lines; first and second supply nodes for connection to respective high and low voltage sources; and switching circuitry connected to the first and second output nodes and the first and second supply nodes and operable based on an input signal to conductively connect the first and second output nodes either to the first and second supply nodes, respectively, in a first state when the input signal has a first value, or to each other, in a second state when the input signal has a second value different from the first value, so as to transmit output signals dependent on the input signal via such output signal lines.