74HC74HCT

The 74HC74 is a dual D-type flip-flop integrated circuit. It belongs to the High-speed CMOS (HC) logic family. Each flip-flop in the 74HC74 has two independent D-type flip-flops, each with a preset and an asynchronous clear input. These inputs allow for direct setting or resetting of the flip-flop's output state, independent of the clock signal. The D input is a data input, and the clock input triggers the flip-flop's state change on its rising edge. The Q output represents the stored data, and the inverted Q output provides the complement of the data. This device is widely used in digital electronics for applications such as data storage, frequency division, and state machine implementation. The 74HCT74 is a TTL-compatible version of the same circuit, meaning it can interface with older TTL logic families more directly. The "T" in HCT signifies that it is intended for use in a TTL environment. Both versions are typically available in various package types, including DIP and SOIC. Their low power consumption and high speed make them suitable for a broad range of digital designs.