The MC10EP/100EP52 is a differential data, differential clock D flip-flop with reset. The device is functionally equivalent to the EL52 device. Data enters the master portion of the flip-flop when the clock is LOW and is transferred to the slave, and thus the outputs, upon a positive transition of the clock. The differential clock inputs of the EP52 allow the device to also be used as a negative edge triggered device. The EP52 employs input clamping circuitry so that under open input conditions (pulled down to VEE ) the outputs of the device will remain stable.