Abstract: A data line for an integrated circuit such as field programmable gate array, has a relatively fast rise time, consumes relatively low amount of current, and maintains a relatively fast fall time. A data conductor is connected to a circuit element providing a current path from the data conductor to a source of the supply voltage. A plurality of data-in drivers are connected to the data conductor which act in one state to pull the data conductor from the supply voltage to ground, and act in another state to present high impedance to the data conductor. A dynamic element is included, which connects an additional current path between the data line and the supply during transitions from ground to the supply, and which disconnects the additional current path otherwise. This speeds up the transitions from low to high, while not opposing the transitions from high to low.