The SN74AS138D is a high-performance, three-line to eight-line decoder/demultiplexer designed by Texas Instruments. This integrated circuit is part of the advanced Schottky (AS) family and is widely used in digital systems where it is necessary to decode binary information or demultiplex signals.

The SN74AS138D is optimized for use in systems where high speed, low power consumption, and reduced noise are essential. It is capable of working with a wide range of operating voltages, typically from 4.5V to 5.5V, making it versatile for various applications. With its fast propagation delay and transition times, this decoder/demultiplexer is an excellent choice for high-speed operations.

Key Features:

• Logic Family: Advanced Schottky (AS)
• Operating Voltage: 4.5V to 5.5V
• Output Current: -8 mA to 8 mA
• Propagation Delay Time: Fast
• Package: SOIC-16
• Temperature Range: -55°C to 125°C

The device features three enable inputs (two active-low and one active-high) and can demultiplex up to eight unique outputs. When the enable inputs are correctly configured, one of the eight outputs will be selected based on the three binary input signals, making it ideal for hardware addressing and selection tasks.

With its standard 16-pin SOIC package, the SN74AS138D is easy to integrate into printed circuit boards. It is also characterized for operation over the full military temperature range of -55°C to 125°C, ensuring reliability and performance even under extreme conditions.

Whether you're designing complex microprocessor systems, memory address decoders, or data routing applications, the SN74AS138D from Texas Instruments offers the functionality and performance necessary to meet the demands of your digital logic circuits.