The 74HC175D is a positive-edge-triggered D-type flip-flop from the 74HC family, packing four flip-flops with complementary outputs and a master-reset function into a 16-SOIC package. Its 63 MHz clock frequency sets the upper bound for synchronous data capture in a 5V or 6V system — useful for moderate-speed counters, shift registers, or bus-interface hold registers. The 24 ns propagation delay at 6V, 50 pF load gives a hard floor for clock-to-Q timing; at 5V the delay will be slightly longer, and at 3.3V expect it to stretch further still, so budget accordingly if you're running at lower supply voltages.
Supply range and temperature — industrial and automotive capable
Rated for 2V to 6V supply, the 74HC175D runs comfortably at 5V (the classic TTL legacy rail) and at 3.3V for mixed-voltage logic. Quiescent current sits at 4 µA, so it won't burden a shared power rail in a power-sensitive design.
Output drive and capacitive load
For heavier loads (long backplane traces, high fan-out, or capacitive loads above 50 pF), plan on external buffers or a higher-drive logic family. The input capacitance is 3 pF, so the clock line won't load the source heavily.
Package and footprint — 16-SOIC
No exposed pad, no thermal vias needed — just a straightforward two-row footprint.
