Product Overview: 74HCT74DB by NXP Semiconductors
The 74HCT74DB from NXP Semiconductors is a high-speed Si-gate CMOS device that belongs to a high-speed integrated circuit family. This dual D-type flip-flop with set and reset functionality is designed to operate at a supply voltage range of 4.5 V to 5.5 V, making it compatible with TTL levels.
This device features two independent D-type flip-flops with individual data inputs (D), clock inputs (CP), set inputs (SD), and reset inputs (RD). Each flip-flop has its own Q and Q-bar outputs, allowing for versatile applications in edge-triggered circuits. The flip-flops are positive-edge triggered, meaning that the logic state at the D input is transferred to the Q output during the rising edge of the clock pulse, providing synchronous state changes.
The set and reset inputs are asynchronous, allowing immediate setting or resetting of the flip-flop independent of the clock signal. When set or reset is asserted, the flip-flop will take the corresponding state irrespective of the other inputs. This feature is particularly useful for initialization or emergency shutdown procedures in digital systems.
The 74HCT74DB is characterized by its low power consumption and high noise immunity, which are typical of CMOS devices, while maintaining the ability to interface with TTL logic. It is commonly used in counters, control circuits, and toggle applications where reliable and fast state changes are critical.
Packaged in a standard 14-pin SO package, the 74HCT74DB is suitable for a wide range of applications in the commercial, industrial, and automotive sectors. Its robust design ensures reliable performance in even the most demanding environments.
For detailed information regarding the electrical characteristics and pin configurations, refer to the manufacturer's datasheet. The 74HCT74DB by NXP Semiconductors is an essential component for designers looking for a dependable flip-flop that delivers consistent performance and integrates seamlessly with TTL systems.
Key Features:
- Dual D-type flip-flop configuration
- Positive-edge trigger operation
- Asynchronous set and reset inputs
- Wide supply voltage range (4.5 V to 5.5 V)
- TTL level compatibility
- Low power consumption
- High noise immunity
- Standard 14-pin SO package
