Texas Instruments

SN74ALS139NSR  

Encoders, Decoders, Multiplexers & Demultiplexers

SN74ALS139NSR Description

The SN74ALS139NSR is a high-performance decoder/demultiplexer IC designed by Texas Instruments, part of the 74ALS series. This device features a 1 x 2:4 decoding circuit, providing two independent circuits in a single package. It is optimized for surface mount applications, making it ideal for compact and high-density circuit designs. The SN74ALS139NSR operates within a voltage supply range of 4.5V to 5.5V and is designed for a single supply, source ensuring stable and reliable performance.

The SN74ALS139NSR is rated for operation within an ambient temperature range of 0°C to 70°C, making it suitable for a wide range of industrial and consumer applications. It offers a current output capability of 400µA for high-level outputs and 8mA for low-level outputs, ensuring robust signal handling. The device is packaged in a Tape & Reel (TR) format, facilitating efficient handling and assembly processes.

SN74ALS139NSR Features

• Dual Independent Circuits: The SN74ALS139NSR provides two independent 1 x 2:4 decoding circuits a in single package, offering enhanced functionality and flexibility.
• Single Supply Operation: Designed for single supply operation within a 4.5V to 5.5V range, the SN74ALS139NSR ensures stable performance and compatibility with a variety of power supply configurations.
• Surface Mount Compatibility: The surface mount design allows for high-density circuit layouts, making it ideal for modern electronic devices where space is a critical consideration.
• Wide Operating Temperature Range: an With operating temperature range of 0°C to 70°C, the SN74ALS139NSR is suitable for a broad range of environmental conditions.
• High Current Output Capability: The device can handle output currents of up to 8mA for low-level outputs and 400µA for high-level outputs, ensuring reliable signal transmission.
• Compliance and Safety: The SN74ALS139NSR is REACH unaffected and RoHS3 compliant, meeting stringent environmental and safety standards. It also has a moisture sensitivity level (MSL) of 1, indicating unlimited storage and handling flexibility.

SN74ALS139NSR Applications

The7 SN4ALS139NSR is well-suited for a variety of applications that require efficient signal decoding and demultiplexing. Some specific use cases include:

• Digital Systems: Ideal for use in digital systems where multiple signal paths need to be efficiently managed and decoded.
• Microcontroller Interfaces: Enhances the functionality of microcontroller systems by providing additional decoding capabilities, allowing for more complex signal routing.
• Memory Address Decoding: Used in memory systems to decode lines address, enabling efficient access to memory locations.
• Data Communication: Facilitates data communication by decoding and routing signals in various communication protocols.
• Consumer Electronics: Suitable for consumer electronics where compact design and high performance are critical, such as in smartphones, tablets, and other portable devices.

Conclusion of SN74ALS139NSR

The SN74ALS139NSR is a versatile and high-performance decoder/demlexerultip IC that offers significant advantages over similar models. Its dual independent circuits, single supply operation, and surface mount compatibility make it an ideal choice for a wide range of applications. The device's compliance with environmental and safety standards ensures its suitability for modern electronics manufacturing processes. Whether used in digital systems, microcontroller interfaces, or consumer electronics, the SN74ALS139NSR provides reliable and efficient signal decoding and demultiplexing, making it a valuable component in the electronics industry.

SN74ALS139NSR Documents

Download datasheets and manufacturer documentation for SN74ALS139NSR

Datasheets :

SN54ALS139, SN74ALS139      

PCN Packaging :

Carrier Tape Update 23/Feb/2015       PCN Cancelled 17/Apr/2015      

HTML Datasheet :

SN54ALS139, SN74ALS139