Product Overview: 74ALS138N by NXP

The 74ALS138N is a high-performance integrated circuit designed and manufactured by NXP Semiconductors. This device is part of the Advanced Low-Power Schottky (ALS) family, which is known for combining the low power consumption of CMOS with the speed and output drive of TTL. The 74ALS138N is a 3-to-8 line decoder/demultiplexer, making it an essential component for a wide range of digital applications where efficient data distribution and management are required.

Key Features

• Logic Type: Decoder / Demultiplexer
• Number of Inputs: 3
• Number of Outputs: 8
• Output Type: Standard
• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Package: 16-pin DIP (Dual In-line Package)
• Propagation Delay Time: Fast switching times with delays typically less than 15ns

Applications

The 74ALS138N is versatile and can be used in a variety of digital systems. Common applications include:

• Memory decoding or data routing
• Control systems
• Computers and computer peripherals
• Communication systems
• Instrumentation
• PLC systems

Product Description

The 74ALS138N features three binary select inputs (A, B, and C) and an active LOW enable input (E). When the enable input is active, the device selects one of the eight output lines based on the binary value applied to the inputs. The selected output is pulled LOW while the remaining outputs stay HIGH. This enables efficient data routing from a single input line to multiple output lines, or the selection of a single data source from multiple inputs in multiplexing applications.

Manufactured with NXP's advanced technology, the 74ALS138N offers a robust design with high noise immunity and low power dissipation. This makes it a reliable choice for critical digital logic applications that require a balance between power efficiency and performance.

In terms of packaging, the 16-pin DIP format of the 74ALS138N allows for easy integration into a variety of board layouts, and its standardized pin configuration ensures compatibility with a wide range of socket and soldering options.

Overall, the 74ALS138N from NXP is a powerful and reliable component that meets the stringent requirements of modern digital systems, providing a cost-effective solution for decoding and demultiplexing needs.