Texas Instruments

SN74HC74DT  

Flip Flops

SN74HC74DT Description

The SN74HC74DT is a dual D-type flip-flop IC designed by Texas Instruments, featuring a high-speed CMOS logic family. This device is ideal for applications requiring high performance and reliability in digital circuits. It operates within a supply voltage range of 2V to 6V and is capable of handling a clock frequency up to 60 MHz. The SN74HC74DT is housed in a surface-mount 14SOIC package, making it suitable for compact and high-density PCB designs.

SN74HC74DT Features

• High-Speed Operation: With a maximum clock frequency of 60 MHz, the SN74HC74DT ensures fast and efficient data processing.
• Complementary Outputs: The device provides complementary outputs, which can be useful in various digital logic applications requiring both true and inverted signals.
• Positive Edge Triggering: The flip-flops are triggered on the positive edge of the clock signal, ensuring precise timing control.
• Low Power Consumption: The SN74HC74DT has a quiescent current of only 4 µA, making it highly energy-efficient.
• Wide Operating Voltage Range: The device operates reliably within a voltage range of 2V to 6V, providing flexibility in power supply requirements.
• Set and Reset Functionality: The flip-flops feature set (preset) and reset functions, allowing for easy initialization and control of the output states.
• Low Propagation Delay: The maximum propagation delay is 30ns at 6V and 50pF, ensuring fast signal transmission and minimal delay.
• High Output Current Capability: The device can source and sink up to 5.2mA, making it suitable for driving various types of loads.
• Compliance and Reliability: The SN74HC74DT is REACH unaffected and RoHS3 compliant, ensuring environmental safety and reliability.

SN74HC74DT Applications

The SN74HC74DT is well-suited for a variety of applications due to its high-speed operation, low power consumption, and versatile functionality. Some specific use cases include:

• Digital Clock Circuits: The positive edge triggering and complementary outputs make it ideal for generating clock signals and managing timing in digital systems.
• Data Storage and Latching: The dual D-type flip-flops can be used for temporary data storage and latching operations in microprocessors and memory circuits.
• Synchronization Circuits: The device can be employed in synchronizing digital signals, ensuring proper timing and coordination between different parts of a digital system.
• Frequency Division: The flip-flops can be configured to divide input frequencies, providing lower frequency outputs for various timing and control applications.
• Edge Detection and Signal Processing: The set and reset functions can be utilized for edge detection and signal processing in digital communication systems.

Conclusion of SN74HC74DT

The SN74HC74DT is a versatile and high-performance dual D-type flip-flop IC from Texas Instruments, offering a wide range of features and benefits for digital circuit applications. Its high-speed operation, low power consumption, and wide operating voltage range make it suitable for various use cases, from digital clock circuits to data storage and synchronization. Despite being marked as obsolete, the SN74HC74DT remains a reliable choice for designers seeking a robust and efficient solution for their digital logic needs.

SN74HC74DT Documents

Download datasheets and manufacturer documentation for SN74HC74DT

Datasheets :

SN54HC74, SN74HC74      

PCN Obsolescence/ EOL :

EOL 31/Oct/2023      

HTML Datasheet :

SN54HC74, SN74HC74      

PCN Design/Specification :

Design 25/Feb/2022       CD74HC/SN74HC 11/Aug/2021