D flip-flop

A D flip-flop is a digital component that stores a single bit of data (0 or 1). It updates its stored value only when it receives a specific clock signal (like a trigger). When the clock signal occurs, the flip-flop "samples" the input data (D) and then holds that value steady until the next clock signal. This makes it useful for synchronizing data in electronic systems, ensuring information is stored and transferred accurately at precise moments. Essentially, it acts as a memory cell that captures and maintains a bit of information synchronized with clock pulses.