A read-back latch circuit which includes a latch circuit having an input and an output and an enable input and operative to transmit an input data signal to the output in response to a preselected enable signal and to block the transmission of the input data signal otherwise. A read-back switch is coupled between the output and input of said latch circuit and is operative to couple the signal on the output of said latch circuit to the input thereof in response to a read-back control signal.
