onsemi

MC74HC574AF

###7 MC4HC574AF Description

The MC74HC574AF is a high-speed CMOS D-type flip-flop from the 74HC series, manufactured by onsemi. This logic IC chip is designed for high-performance applications requiring reliable data storage and transfer. It features an 8-bit D-type flip-flop with a positive edge trigger, ensuring data is latched on the rising edge of the clock signal. The device operates within a wide supply voltage range of 2V to 6V, making it suitable for various power supply conditions. Despite its obsolescence, the MC74HC574AF remains a robust choice for applications that require a single element with 8-bit storage capacity.

MC74HC574AF Features

• Clock Frequency: The MC74HC574AF supports a clock frequency of up to 35 MHz, enabling high-speed data processing and transfer.
• Trigger Type: The positive edge trigger ensures data is captured precisely on the rising edge of the clock signal, providing accurate and reliable data latching.
• Supply Voltage: Operating within a supply voltage range of 2V to 6V, this IC is versatile and adaptable to different power supply environments.
• Low Quiescent Current: With a quiescent current of only 4 µA, the MC74HC574AF is energy-efficient, making it suitable for low-power applications.
• High Output Current: The device can deliver an output current of 7.8mA for both high and low states, ensuring robust performance in driving various loads.
• Low Propagation Delay: The maximum propagation delay is 27ns at 6V and 50pF, ensuring fast signal transmission and minimal latency.
• Moisture Sensitivity Level: With an M ofSL 3 (168 hours), the IC is suitable for surface mount applications and can withstand typical manufacturing processes without degradation.
• Input Capacitance: The low input capacitance of 10 pF minimizes loading effects on the driving circuitry, enhancing overall system performance.

MC74HC574AF Applications

The MC74HC574AF is ideal for a variety of applications that require reliable and efficient data storage and transfer. Its high-speed operation and robust performance make it suitable for:

• Digital Systems: Use in digital circuits where data needs to be latched and transferred reliably.
• Microprocessor Systems: Ideal for interfacing with microprocessors and microcontrollers for data buffering and storage.
• Communication Systems: Suitable for applications requiring high-speed data transfer and storage, such as in communication protocols and interfaces.
• Industrial Control Systems: Applicable in industrial environments where robustness and reliability are critical.

Conclusion of MC74HC574AF

The MC74HC574AF, despite being an obsolete part, remains a reliable and efficient choice for applications requiring an 8-bit D-type flip-flop. Its wide supply voltage range, low quiescent current, and high output current make it versatile and energy-efficient. The low propagation delay and positive edge trigger ensure fast and accurate data processing. While newer alternatives may offer enhanced features, the MC74HC574AF continues to provide a robust solution for various digital and industrial applications.