Texas Instruments

SN74LS27N  

Gates and Inverters

SN74LS27N Description

The SN74LS27N is a high-performance NOR gate integrated circuit (IC) designed and manufactured by Texas Instruments. It belongs to the 74LS series and is currently in active production, making it a reliable choice for new designs. This IC is designed to operate within a wide temperature range of 0°C to 70°C, ensuring consistent performance in various environments. It is packaged in a 14-pin DIP (Dual In-line Package) tube, suitable for through-hole mounting, which is beneficial for applications requiring easy integration and manual assembly.

SN74LS27N Features

• Logic Type: NOR Gate, which is a fundamental building block in digital circuits.
• Number of Inputs: 3, allowing for versatile logic operations.
• Number of Circuits: 3, providing multiple independent NOR gate functions within a single IC.
• Voltage - Supply: 4.75V to 5.25V, which is a standard range for low-power logic ICs.
• Max Propagation Delay: 15ns @ 5V, 15pF, indicating fast switching capabilities.
• Input Logic Levels: Low (0.8V) and High (2V), ensuring clear signal differentiation.
• Current - Output High, Low: 400µA and 8mA, respectively, providing sufficient drive capability.
• RoHS Compliance: ROHS3 Compliant, making it suitable for environmentally conscious designs.
• ECCN: EAR99, indicating export control classification for international trade.
• REACH Status: REACH Unaffected, ensuring compliance with European chemical regulations.
• Moisture Sensitivity Level (MSL): Not Applicable, suggesting that the IC is not sensitive to moisture, which is beneficial for storage and handling.

SN74LS27N Applications

The SN74LS27N is ideal for a variety of digital logic applications where multiple NOR gate functions are required. Some specific use cases include:

• Digital Circuit Design: As a fundamental building block, it can be used in any digital circuit that requires basic logic operations.
• Automotive Electronics: Due to its wide operating temperature range, it is suitable for automotive applications where temperature fluctuations are common.
• Industrial Control Systems: The robustness and reliability of the SN74LS27N make it a good fit for industrial control systems that require stable operation over a wide temperature range.
• Educational Purposes: As a basic component in digital electronics, it is often used in educational settings to teach the fundamentals of digital logic.

Conclusion of SN74LS27N

The SN74LS27N from Texas Instruments stands out for its versatility, reliability, and compliance with environmental standards. Its fast propagation delay and robust design make it suitable for a wide range of applications, from digital circuit design to industrial control systems. With its active product status and compliance with RoHS and REACH regulations, the SN74LS27N is a dependable choice for new and existing projects in the electronics industry.

SN74LS27N Documents

Download datasheets and manufacturer documentation for SN74LS27N

Datasheets :

SN54/74(LS)27      

HTML Datasheet :

SN54/74(LS)27      

PCN Design/Specification :

Material Set 30/Mar/2017