110 MHz clock — what it buys you in a 5V synchronous bus
The Texas Instruments SN74S175D is a 74S-series D-type flip-flop that clocks at 110 MHz with a propagation delay of 12ns at 5V driving 15pF. That puts it in the fast lane of the 5V logic families — well ahead of the 74LS series (40 MHz, 25ns) and competitive with 74F (80 MHz, 10ns). It is a single-element, 4-bit positive-edge-triggered register with complementary outputs and an asynchronous master reset. The 4.75V to 5.25V supply range matches legacy 5V TTL rails, and the 96 mA quiescent current reflects the Schottky-clamped speed advantage.
Master reset and complementary outputs — the logic interface
The master reset input (active low, per the function) clears all four flip-flops asynchronously, which is useful for power-on initialization or emergency reset without waiting for a clock edge. Complementary outputs give you both Q and /Q on each bit — handy for differential data paths or driving paired logic without external inverters. The output drive capability is 1 mA sourcing and 20 mA sinking, typical for Schottky TTL and sufficient for driving one or two standard TTL loads or a CMOS input with a pull-up.
If your design lives in an unconditioned enclosure or sees ambient above 70°C, you will need to budget for airflow or move to an extended-temperature logic family.
It is ROHS3 compliant.