STMicroelectronics 74AC74 Dual D-Type Positive Edge-Triggered Flip-Flop
The 74AC74 from STMicroelectronics is a high-speed CMOS Dual D-Type Positive Edge-Triggered Flip-Flop integrated circuit, designed to operate from a wide range of power supply voltages. This device features individual set, reset, clock, and data inputs for each flip-flop. The outputs are buffered to ensure high noise immunity and low power consumption.
With its dual D-type configuration, the 74AC74 is capable of storing two bits of data for each positive transition of the clock signal. The direct set and reset inputs are asynchronous, which means they can be used to set or reset the flip-flop independently of the clock signal, providing additional control and flexibility in various applications.
Key features of the 74AC74 include:
- Operating Voltage Range: The device supports a wide operating voltage range, typically from 2.0V to 6.0V, making it suitable for interfacing with both TTL and CMOS logic levels.
- High-Speed Operation: The 74AC74 is designed for very high-speed operation, which is essential for modern digital systems where fast data processing is a critical requirement.
- Low Power Consumption: Despite its high-speed capabilities, the 74AC74 maintains low power consumption, a characteristic of CMOS technology, contributing to energy-efficient designs.
- Output Drive Capability: The device can drive up to 24mA at the output, allowing it to drive multiple loads or interface with other logic families.
- Pin and Function Compatibility: The 74AC74 is pin-compatible with other standard logic families, making it easy to integrate into existing designs without the need for significant layout changes.
The 74AC74 is commonly used in a variety of applications, such as data storage, data transfer, frequency division, counters, and control systems. Its reliability and versatility make it an excellent choice for designers looking for a dependable flip-flop solution.
STMicroelectronics provides this component in multiple package options, including the popular DIP and SOIC packages, to accommodate different assembly requirements and design preferences. Whether you're working on a complex digital system or a simple timing circuit, the 74AC74 offers a robust and efficient solution for your flip-flop needs.
