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74VHCT74ASJX

74VHCT74ASJX Description

The 74VHCT74ASJX is a dual D-type flip-flop integrated circuit (IC) designed for high-speed digital applications. Manufactured by onsemi, this IC is part of the 74VHCT series, known for its robust performance and reliability. Despite being marked as obsolete, the 74VHCT74ASJX remains a valuable component for specific applications due to its unique features and performance characteristics.

This IC features two D-type flip-flops, each capable of storing a single bit of data. It operates within a supply voltage range of 4.5V to 5.5V, ensuring compatibility with a wide range of power supplies. The clock frequency of 140 MHz allows for high-speed data processing, making it suitable for demanding digital circuits. The flip-flops are triggered on the positive edge of the clock signal, ensuring precise timing and synchronization.

The 74VHCT74ASJX offers complementary outputs, providing both true and inverted outputs for each flip-flop. This feature enhances the flexibility of the IC, allowing for various digital logic configurations. The maximum propagation delay of 8.8 ns at 5V and 50 pF ensures fast signal transmission, crucial for high-speed applications.

74VHCT74ASJX Features

• High-Speed Performance: With a clock frequency of 140 MHz, the 74VHCT74ASJX is capable of handling high-speed data processing, making it suitable for demanding digital applications.
• Dual D-Type Flip-Flops: Each flip-flop stores one bit of data, providing a total of two bits of storage. This dual functionality allows for compact and efficient circuit design.
• Positive Edge Triggering: The flip-flops are triggered on the positive edge of the clock signal, ensuring precise timing and synchronization.
• Complementary Outputs: Both true and inverted outputs are available for each flip-flop, enhancing the flexibility of the IC for various digital logic configurations.
• Low Quiescent Current: The IC consumes only 2 µA in quiescent mode, making it energy-efficient and suitable for low-power applications.
• Wide Supply Voltage Range: Operating within a supply voltage range of 4.5V to 5.5V, the 74VHCT74ASJX is compatible with a wide range of power supplies.
• Surface Mount Packaging: The 14SOP package is designed for surface mount technology (SMT), ensuring ease of integration into modern PCB designs.
• Moisture Sensitivity Level 1: The IC is classified as MSL 1, indicating it is not moisture-sensitive and can be stored and handled without special precautions.

74VHCT74ASJX Applications

The 74VHCT74ASJX is ideal for a variety of digital applications, including:

• Digital Clock Circuits: The high-speed operation and precise timing make it suitable for clock generation and synchronization in digital systems.
• Data Storage and Transmission: The dual D-type flip-flops can be used for temporary data storage and transmission in digital circuits.
• Sequential Logic Circuits: The complementary outputs and positive edge triggering make it a versatile component for designing sequential logic circuits.
• Counter Circuits: The flip-flops can be cascaded to form counters, providing a compact and efficient solution for counting applications.
• FIFO and LIFO Buffers: The dual flip-flops can be used to implement First-In-First-Out (FIFO) and Last-In-First-Out (LIFO) buffers for data management.

Conclusion of 74VHCT74ASJX

The 74VHCT74ASJX is a high-performance dual D-type flip-flop IC that offers a combination of speed, flexibility, and reliability. Despite its obsolete status, its unique features and performance benefits make it a valuable component for specific applications. The high-speed operation, complementary outputs, and low quiescent current make it an ideal choice for digital clock circuits, data storage, and sequential logic designs. Its surface mount packaging and moisture sensitivity level 1 classification ensure ease of integration and handling. For applications requiring high-speed, reliable, and compact digital solutions, the 74VHCT74ASJX remains a compelling option.