Texas Instruments

SN74LS266D  

Gates and Inverters

SN74LS266D Description

The SN74LS266D is a high-performance XNOR (Exclusive NOR) logic gate IC designed by Texas Instruments. This 14-pin Surface Mount device is part of the renowned 74LS series, known for its robustness and reliability in digital circuit applications. The SN74LS266D features four independent 2-input XNOR gates, making it highly versatile for various digital logic operations.

Operating within a temperature range of 0°C to 70°C, the SN74LS266D is suitable for a wide range of industrial and commercial applications. It operates with a supply voltage between 4.75V and 5.25V, ensuring stable performance across different power conditions. The maximum propagation delay of 30ns at 5V and 15pF capacitance load highlights its high-speed performance, making it ideal for applications requiring rapid signal processing.

The SN74LS266D is designed with open collector outputs, providing flexibility in circuit design and allowing for easy interfacing with other digital components. Its input logic levels are specified at 0.8V for low and 2V for high, ensuring compatibility with standard TTL logic levels. The device also features a maximum quiescent current of 13 mA, contributing to its energy efficiency.

SN74LS266D Features

• High-Speed Performance: With a maximum propagation delay of 30ns at 5V and 15pF, the SN74LS266D ensures rapid signal processing, making it suitable for high-speed digital circuits.
• Robust Logic Functionality: The XNOR logic function allows for complex digital operations, making it ideal for applications requiring precise logical control.
• Open Collector Outputs: This feature provides flexibility in circuit design, allowing for easy interfacing with other digital components and enabling the use of pull-up resistors for level shifting.
• Wide Operating Voltage Range: The SN74LS266D operates within a supply voltage range of 4.75V to 5.25V, ensuring stable performance across different power conditions.
• Low Quiescent Current: With a maximum quiescent current of 13 mA, the device is energy-efficient, making it suitable for applications where power consumption is a concern.
• Standard TTL Compatibility: Input logic levels of 0.8V for low and 2V for high ensure compatibility with standard TTL logic levels, facilitating seamless integration into existing digital systems.
• Surface Mount Packaging: The SN74LS266D is available in a 14-pin Surface Mount package, making it suitable for compact and high-density PCB designs.
• Compliance and Safety: The device is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.

SN74LS266D Applications

The SN74LS266D is highly versatile and finds applications in a variety of digital systems, including:

• Digital Signal Processing: The high-speed XNOR gates are ideal for processing digital signals in real-time applications, such as data encryption and error detection.
• Control Systems: The robust logic functionality makes it suitable for control systems where precise logical operations are required, such as in automation and robotics.
• Data Communication: The open collector outputs and standard TTL compatibility enable the SN74LS266D to be used in data communication circuits, facilitating signal transmission and reception.
• Consumer Electronics: The device's compact size and surface mount packaging make it suitable for consumer electronics, where space and power consumption are critical factors.
• Industrial Automation: The wide operating temperature range and robust performance make the SN74LS266D ideal for industrial automation applications, where reliability and durability are paramount.

Conclusion of SN74LS266D

The SN74LS266D is a high-performance XNOR gate IC that offers a combination of speed, flexibility, and reliability, making it an excellent choice for a wide range of digital applications. Its open collector outputs, wide operating voltage range, and low quiescent current provide significant advantages over similar models, ensuring it meets the demands of modern digital systems. Whether used in digital signal processing, control systems, or consumer electronics, the SN74LS266D delivers consistent performance and is a reliable component for any digital circuit designer.

SN74LS266D Documents

Download datasheets and manufacturer documentation for SN74LS266D

Datasheets :

SN54LS266, SN74LS266      

PCN Design/Specification :

Design 25/Feb/2022