8-bit D-type register with tri-state bus drive
The SN74S374N is an 8-bit D-type flip-flop from TI's 74S Schottky family. It captures data on the positive edge of the clock and presents it on tri-state, non-inverted outputs — meaning the outputs can be driven high, low, or placed in a high-impedance state for bus sharing. The 100 MHz clock frequency and 17 ns propagation delay (at 5 V, 15 pF) make it a fit for moderate-speed address/data latching in 5 V TTL systems. It is a through-hole part in a 20-pin DIP (0.300" body), so it goes into socketed boards or prototype builds, not a reflow line.
Supply and temperature — the operating envelope
Output drive and quiescent current
Each output can source 6.5 mA (IOH) — enough to drive one or two standard TTL loads or a low-power LED indicator, but not a heavy bus without a buffer. The quiescent supply current (Iq) sits at 110 mA, which is typical for a Schottky 8-bit register and means the part draws that current even when idle. For battery-powered or thermally constrained boards, the 74LS or 74HC families draw significantly less standby current.