Texas Instruments

SN74S74DR  

Flip Flops

SN74S74DR Description

The SN74S74DR is a dual D-type flip-flop IC from Texas Instruments, designed for high-speed digital applications. This device features two independent flip-flops, each capable of storing a single bit of data. The SN74S74DR operates within a supply voltage range of 4.75V to 5.25V and supports a maximum clock frequency of 110 MHz, ensuring reliable performance in demanding digital circuits. The flip-flops are triggered on the positive edge of the clock signal, providing precise control over data latching.

The SN74S74DR offers complementary outputs, which can be advantageous in various digital logic designs. It also includes set (preset) and reset functions, allowing for flexible control over the flip-flop states. The device is housed in a 14-pin SOIC package, making it suitable for surface-mount applications. With a maximum propagation delay of 9ns at 5V and 15pF, the SN74S74DR ensures fast signal processing and minimal delay in data transfer.

SN74S74DR Features

• High-Speed Performance: With a maximum clock frequency of 110 MHz, the SN74S74DR is well-suited for high-speed digital applications.
• Complementary Outputs: The device provides both true and complement outputs, enhancing its versatility in digital logic circuits.
• Positive Edge Triggering: The flip-flops are triggered on the positive edge of the clock signal, ensuring precise timing control.
• Set and Reset Functions: The SN74S74DR includes set (preset) and reset capabilities, allowing for flexible state control.
• Low Quiescent Current: The device consumes only 25 mA in quiescent mode, making it energy-efficient.
• Surface-Mount Package: The 14-pin SOIC package is ideal for surface-mount applications, providing a compact and reliable solution.
• Wide Operating Temperature Range: The SN74S74DR operates reliably within a temperature range of 0°C to 70°C (TA).
• Compliance and Safety: The device is REACH unaffected and RoHS3 compliant, ensuring environmental and safety standards are met.

SN74S74DR Applications

The SN74S74DR is ideal for a variety of digital applications, including:

• Digital Logic Circuits: The dual D-type flip-flops are perfect for use in digital logic designs where precise control over data latching is required.
• Data Storage and Transfer: The device can be used in systems where data needs to be stored temporarily and transferred reliably.
• Clock Synchronization: The positive edge triggering feature makes the SN74S74DR suitable for applications requiring synchronized clock signals.
• Sequential Logic Systems: The set and reset functions allow for flexible state control, making the device ideal for sequential logic systems.

Conclusion of SN74S74DR

The SN74S74DR from Texas Instruments is a high-performance dual D-type flip-flop IC, offering a combination of speed, versatility, and reliability. Its high clock frequency, complementary outputs, and set/reset functions make it a valuable component in various digital applications. Despite being marked as obsolete, the SN74S74DR remains a reliable choice for engineers and designers looking for a compact, high-speed solution in their digital circuits.

SN74S74DR Documents

Download datasheets and manufacturer documentation for SN74S74DR