SN74AUP1G80 D-Type Flip-Flop Texas Instruments SN74AUP1G80 D-Type Flip-Flop is a single positive-edge-triggered D-type flip-flop. 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. The 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 levels at the outputs. The Texas Instruments SN74AUP1G80 is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs when the device is powered down. This circuitry inhibits current backflow into the device, which prevents damage to the device.