The RS1G79-Q1 single positive-edge-triggered D-type flip-flop is designed for 1.65V to 5.5V VCC operation. When data at the data (D) input meets the setup time requirement, the data is transferred to the Q output on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold-time interval, data at the D input can be changed without affecting the level at the output.