Single-bit D-type in the 74AUP family
The SN74AUP1G79DBVR is a single D-type flip-flop from TI's 74AUP series, clocked at 266 MHz and triggered on the positive edge. The non-inverted output (Q) follows the D input on each rising clock edge — standard register or pipeline stage in a low-power logic chain. Quiescent current is 500 nA typical — negligible in battery-powered or always-on blocks.
Propagation delay and drive at 3.3 V
Max propagation delay is 5.8 ns at 3.3 V with a 30 pF load. That sets the timing budget for a single register stage — at 266 MHz the clock period is 3.76 ns, so the delay eats about 1.5 clock edges of margin, meaning this part is better suited for moderate-speed pipeline registers than for the last stage before a fast output bus. Output drive is 4 mA source and 4 mA sink at the rated supply — enough to switch a standard CMOS input on the same board or drive a short trace, but not meant for heavy fan-out or long backplane runs. Input capacitance is 1.5 pF, light on the upstream driver.
SOT-23-5 — field-swappable footprint
Housed in a SOT-23-5 (SC-74A) surface-mount package, the part is small enough for dense layouts but large enough for hand-rework with a fine-tip iron and tweezers — no hot-air station required. The pinout is standard for single-gate logic: GND, D, CLK, Q, VCC. Orientation is unambiguous if the board silk-screen marks pin 1.