74HC series ICs are High-speed logic gates with very low power consumption that utilize advanced silicon-gate CMOS technology and 74HC374 is one of them. 74HC374 ICs contain eight positive-edge-triggered D-type flip-flops with 3-Output states i.e. High, Low, and High Impedance. Which is designed specifically for driving highly capacitive or relatively low-impedance loads. High Impedance comes to active low enable pin of these ICs where output-enable (OE)’ input places the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. (OE)’ does not affect the internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.