onsemi

MC74HC138ADG  

Encoders, Decoders, Multiplexers & Demultiplexers

MC74HC138ADG Description

The MC74HC138ADG from onsemi is a high-performance 1-of-8 decoder/demultiplexer integrated circuit (IC) designed for surface-mount applications. Part of the 74HC series, this device operates within a 2V to 6V supply voltage range, making it compatible with a wide variety of digital systems. It features a single 3:8 decoding circuit, enabling efficient address decoding and signal routing in complex digital designs. Packaged in a 16-pin SOIC (Small Outline Integrated Circuit) tube, the MC74HC138ADG is RoHS3 compliant and adheres to REACH unaffected environmental standards, ensuring reliability in industrial and consumer applications.

MC74HC138ADG Features

• High-Speed CMOS Technology: Ensures low power consumption while maintaining high noise immunity.
• Wide Operating Voltage Range (2V–6V): Supports compatibility with TTL and other logic families.
• Balanced Output Drive (5.2mA sink/source): Provides robust signal integrity in noisy environments.
• 3-to-8 Line Decoding: Efficiently converts binary inputs into one of eight active-low outputs.
• Enable Inputs (E1, E2, E3): Allows for easy cascading and system expansion.
• Moisture Sensitivity Level (MSL) 1: Suitable for extended storage and handling without baking requirements.

MC74HC138ADG Applications

• Memory Address Decoding: Ideal for selecting specific memory blocks in microcontrollers and FPGAs.
• Data Routing Systems: Used in multiplexed bus architectures to direct signals to peripherals.
• Industrial Control Systems: Enhances reliability in PLCs and automation equipment due to its noise immunity.
• Consumer Electronics: Found in TVs, set-top boxes, and gaming consoles for signal distribution.
• Automotive Electronics: Suitable for low-voltage automotive control modules where robustness is critical.

Conclusion of MC74HC138ADG

The MC74HC138ADG stands out as a versatile and reliable decoder/demultiplexer for modern digital systems. Its wide voltage range, high-speed operation, and robust output drive make it superior to older TTL-based decoders. Whether used in embedded systems, industrial controls, or consumer electronics, this IC delivers efficient signal management and system scalability. Its RoHS3 compliance and MSL1 rating further ensure it meets stringent environmental and handling requirements, making it a preferred choice for engineers worldwide.

MC74HC138ADG Documents

Download datasheets and manufacturer documentation for MC74HC138ADG

PCN Assembly/Origin :

Mult Dev 15/Nov/2023      

Datasheets :

MC74HC138A      

HTML Datasheet :

MC74HC138A      

Environmental Information :

onsemi RoHS       Material Declaration MC74HC138ADG       onsemi REACH