ON Semiconductor MC74ACT139DG Dual 1-of-4 Decoder/Demultiplexer

The MC74ACT139DG from ON Semiconductor is a high-performance, dual 1-of-4 decoder/demultiplexer integrated circuit. This device is designed to be used in applications that require the decoding or demultiplexing of signals, making it an ideal choice for a wide range of electronic systems. The MC74ACT139DG is part of the ACT series, which is known for its high-speed operation and compatibility with TTL (Transistor-Transistor Logic) levels.

Featuring two individual 1-of-4 decoders, each with its own address inputs and an enable input, the MC74ACT139DG can simultaneously decode two independent input signals to four mutually exclusive outputs. This functionality is essential for systems that need to distribute a single input signal to multiple outputs or select one output from multiple potential inputs.

The MC74ACT139DG operates at a voltage range of 4.5V to 5.5V, which allows it to interface seamlessly with 5V digital systems. Its low power consumption and high noise immunity are characteristics of the ACT series, making it a reliable choice for demanding environments. The device is characterized for operation from -40°C to 85°C, ensuring stable performance in a wide range of temperatures.

Encased in a 16-pin SOIC package, the MC74ACT139DG is designed for surface-mount technology, allowing for efficient use of PCB space. This package type is suitable for automated assembly processes, making it a practical component for mass production.

The MC74ACT139DG's advanced features include:

• Standard-pinout compatibility with other industry-standard decoders/demultiplexers.
• High-speed operation, with typical propagation delay times significantly lower than those of metal gate integrated circuits.
• Output drive capability of up to 24 mA, providing the ability to drive other logic devices directly.
• Multiple package options for design flexibility.

Whether you are designing complex digital systems or simple logic control circuits, the ON Semiconductor MC74ACT139DG offers a reliable and efficient solution for your decoding and demultiplexing needs.