onsemi

74F74SJ

74F74SJ Description

The 74F74SJ is a dual D-type flip-flop IC designed for high-speed digital applications. Manufactured by onsemi, this device is part of the 74F series and is housed in a 14-pin SOP package. It features two independent flip-flops, each with a single-bit storage capacity, making it suitable for a variety of digital logic applications. The 74F74SJ operates within a supply voltage range of 4.5V to 5.5V and is capable of handling a maximum clock frequency of 125 MHz, ensuring high-speed performance. The operating temperature range of 0°C to 70°C (TA) makes it suitable for a wide range of environmental conditions. The device has a maximum propagation delay of 6.8ns at 5V and 50pF, which is crucial for maintaining signal integrity in high-speed circuits. The 74F74SJ also features a quiescent current of 16 mA, contributing to its energy efficiency. The flip-flops are triggered on the positive edge of the clock signal, ensuring reliable and predictable operation.

74F74SJ Features

• High-Speed Performance: With a maximum clock frequency of 125 MHz, the 74F74SJ is designed to handle high-speed digital signals, making it ideal for applications requiring fast data processing.
• Low Propagation Delay: The maximum propagation delay of 6.8ns at 5V and 50pF ensures minimal signal delay, which is critical for maintaining the integrity of high-speed digital circuits.
• Efficient Power Consumption: The quiescent current of 16 mA and output currents of 1mA (high) and 20mA (low) contribute to the device's energy efficiency, making it suitable for power-sensitive applications.
• Dual Flip-Flops: The 74F74SJ features two independent D-type flip-flops, each with a single-bit storage capacity, providing flexibility in digital circuit design.
• Positive Edge Triggering: The flip-flops are triggered on the positive edge of the clock signal, ensuring reliable and predictable operation.
• Complementary Outputs: The complementary output type provides flexibility in circuit design, allowing for both true and inverted outputs.
• Surface Mount Technology: The surface mount package type facilitates easy integration into modern PCB designs, ensuring reliable mechanical and electrical connections.
• Wide Operating Temperature Range: The operating temperature range of 0°C to 70°C (TA) makes the 74F74SJ suitable for a variety of industrial and consumer applications.
• Obsolete Status: While the 74F74SJ is marked as obsolete, it remains a reliable choice for legacy systems and applications where its specific features are required.

74F74SJ Applications

The 74F74SJ is ideal for a variety of digital logic applications, including:

• Data Storage and Processing: The dual D-type flip-flops make it suitable for storing and processing digital data in sequential logic circuits.
• Clock Management: The high-speed performance and low propagation delay make it ideal for clock management applications, where precise timing is critical.
• Signal Synchronization: The positive edge triggering and complementary outputs allow for reliable signal synchronization in complex digital systems.
• Memory Elements: The flip-flops can be used as memory elements in digital circuits, providing temporary storage for digital data.
• Counter Circuits: The 74F74SJ can be used in counter circuits, where its dual flip-flops can be cascaded to create multi-bit counters.

Conclusion of 74F74SJ

The 74F74SJ is a versatile and reliable dual D-type flip-flop IC, offering high-speed performance, low propagation delay, and efficient power consumption. Its dual flip-flops, positive edge triggering, and complementary outputs make it suitable for a wide range of digital logic applications. While marked as obsolete, the 74F74SJ remains a valuable component for legacy systems and applications where its specific features are required. Its wide operating temperature range and surface mount package type ensure reliable performance and easy integration into modern PCB designs.