Texas Instruments

SN74LS348D  

Encoders, Decoders, Multiplexers & Demultiplexers

SN74LS348D Description

The SN74LS348D is a high-performance priority encoder integrated circuit (IC) designed by Texas Instruments. It features a 1 x 8:3 encoding scheme, which means it can encode eight input lines into three output lines, prioritizing higher-order inputs. This IC is part of the 74LS series, known for its reliability and performance in digital logic applications. The SN74LS348D operates within a temperature range of 0°C to 70°C, making it suitable for a variety of industrial and consumer applications. It supports a single supply voltage ranging from 4.75V to 5.25V, ensuring stable operation within standard 5V logic systems.

SN74LS348D Features

• Priority Encoding: The SN74LS348D efficiently encodes eight input lines into three output lines, with higher-order inputs taking precedence. This feature is crucial in applications where multiple signals need to be prioritized.
• Single Supply Operation: The IC operates on a single supply voltage between 4.75V and 5.25V, simplifying power supply design and ensuring compatibility with standard 5V digital systems.
• Surface Mount Packaging: The SN74LS348D is available in a surface mount package, facilitating easy integration into modern printed circuit boards (PCBs) and enabling compact designs.
• High Output Current Capability: The IC can deliver up to 24mA of output current, making it suitable for driving various types of loads without the need for additional amplification.
• Compliance and Safety: The SN74LS348D is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards for electronic components.
• Moisture Sensitivity Level (MSL): With an MSL of 1 (Unlimited), the IC is highly resistant to moisture, making it ideal for use in humid environments.

SN74LS348D Applications

The SN74LS348D is ideal for a wide range of applications where priority encoding is required. Some specific use cases include:

• Data Processing Systems: In systems where multiple data inputs need to be prioritized and encoded efficiently, the SN74LS348D ensures that higher-priority data is processed first.
• Communication Networks: For encoding multiple signals in communication systems, the IC provides a reliable and efficient solution.
• Control Systems: In industrial control systems, the SN74LS348D can be used to encode multiple control signals, ensuring that critical commands are executed first.
• Consumer Electronics: The IC's compact surface mount package and high performance make it suitable for consumer electronics where space and efficiency are critical.

Conclusion of SN74LS348D

The SN74LS348D from Texas Instruments stands out as a robust and efficient priority encoder IC. Its ability to encode eight inputs into three outputs with prioritization, combined with its single supply operation and high output current capability, makes it a versatile component for various digital logic applications. The surface mount packaging and compliance with environmental standards further enhance its appeal. Whether used in data processing systems, communication networks, or consumer electronics, the SN74LS348D offers reliable performance and ease of integration, making it an excellent choice for engineers and designers in the electronics industry.

SN74LS348D Documents

Download datasheets and manufacturer documentation for SN74LS348D

Datasheets :

SN74LS348, SN54LS348      

PCN Design/Specification :

Mult Devices Font 21/Apr/2018       Design 25/Feb/2022