The CD74ACT139M is a high-performance, CMOS Logic dual 2-to-4 line decoder/demultiplexer created by Texas Instruments. This integrated circuit is designed to provide highly efficient decoding and demultiplexing applications in a variety of digital systems. The CD74ACT139M is an essential component for systems requiring the conversion of binary information from n lines to 2^n lines or the selection of one-of-4 lines from two binary select inputs.

Key Features

• Logic Type: Decoder / Demultiplexer
• Supply Voltage Range: 4.5V to 5.5V
• Operating Temperature: -55°C to 125°C
• Package / Case: SOIC-16
• Propagation Delay Time: 8.5 ns (Max) at 5V
• Output Current: High 24 mA; Low 24 mA

Product Description

The CD74ACT139M is designed for high-speed, low-power operations and is fabricated with Texas Instruments' advanced silicon-gate CMOS technology. It features two individual 2-to-4 line decoders in a single package, each accommodating a separate enable input which, when high, forces its outputs to a high-impedance state. When the enable input is low, the decoder selects one of the four output lines based on the binary value applied to its two select inputs. This makes the device particularly useful in demultiplexing applications or in implementing decoder functions in systems that require multiple decoding or demultiplexing stages.

The CD74ACT139M operates over a broad voltage range and provides a balanced propagation delay and transition times. This makes the device suitable for interfacing with a wide range of other logic families, such as TTL, and ensures reliable performance in high-speed applications. Its low power consumption and high noise immunity are hallmarks of the advanced CMOS technology used in its manufacture.

Encased in a slim SOIC-16 package, the CD74ACT139M is optimized for space-constrained applications while providing the robustness needed for industrial-grade products. It is fully characterized for hot-insertion and meets the requirements of JEDEC standard no. 7A at the 5V supply voltage level.

Applications

• Memory decoding or data routing
• Instrumentation and control systems
• Computer peripherals and networking
• PLC systems
• Embedded systems