Texas Instruments

CD74ACT138E

CD74ACT138E Description

The CD74ACT138E is a high-performance decoder/demultiplexer integrated circuit (IC) designed for a wide range of digital applications. Manufactured by Texas Instruments, this IC belongs to the 74ACT series and is known for its robust performance and reliability. The CD74ACT138E features a 1 x 3:8 decoding function, meaning it can decode three input lines into eight output lines, making it highly versatile for various digital signal processing tasks.

This IC is designed for through-hole mounting, ensuring secure and stable installation on printed circuit boards (PCBs). It operates on a single supply voltage ranging from 4.5V to 5.5V, providing flexibility in power supply options. The CD74ACT138E is housed in a tube package, which is ideal for bulk handling and storage in manufacturing environments.

CD74ACT138E Features

• High Current Capability: The CD74ACT138E can source and sink up to 24mA per output, making it suitable for driving various types of loads, including LEDs and small relays.
• Single Supply Operation: With a supply voltage range of 4.5V to 5.5V, this IC is designed to work efficiently with standard 5V power supplies, simplifying power management in digital circuits.
• Independent Circuits: The IC features one independent 3:8 decoder/demultiplexer circuit, ensuring reliable and accurate signal decoding.
• Compliance and Safety: The CD74ACT138 isE REACH unaffected and RoHS3 compliant, meeting stringent environmental and safety standards, making it suitable for use in a wide range of industries.
• Moisture Sensitivity Level: The moisture sensitivity level (MSL) is not applicable, ensuring the IC is not susceptible to moisture-related issues during storage and handling.

CD74ACT138E Applications

The CD74ACT138E is ideal for applications requiring efficient signal decoding and demultiplexing. Some specific use cases include:

• Digital Systems: Used in digital systems for address decoding, where it can efficiently convert a3 -bit address into an 8-bit address space.
• Microcontroller Applications: Ideal for interfacing with microcontrollers to expand the number of available output lines, enabling control of multiple devices with fewer pins.
• Memory Management: Useful in memory management systems to decode memory addresses, facilitating efficient data storage and retrieval.
• Peripheral Control: Can be employed in controlling multiple peripherals with a single microcontroller or processor, simplifying the design and reducing the number of required control lines.

Conclusion of CD74ACT138E

The CD74ACT138E is a versatile and reliable decoder/demultiplexer IC that offers significant advantages in digital circuit design. Its high current capability, single supply operation, and compliance with environmental standards make it an excellent choice for a variety of applications. Whether used in digital systems, microcontroller applications, memory management, or peripheral control, the CD74ACT138E provides robust performance and reliability. Its through-hole mounting and tube packaging ensure ease of installation and handling, making it a preferred choice for engineers and designers in the electronics industry.