MC74AC138DR2

Overview

The MC74AC138DR2G is a decoder and demultiplexer from the onsemi 74AC logic series. It features one input line and eight output lines, housed in a 16-pin SOIC package. The device operates within a supply voltage range of 2 V to 6 V and supports surface mount installation. It functions as a single circuit with an industrial operating temperature range spanning from -40 °C to +85 °C.

Feature Summary

• Provides decoding and demultiplexing functionality for digital signal routing
• Utilizes CMOS technology for efficient power consumption
• Offers inverted outputs for flexible logic interfacing

Applications

• Address decoding for memory systems
• Data distribution in communication circuits
• Control logic in industrial automation equipment

Procurement Notes

Verify the exact part number suffix against official documentation, as the provided model lacks the standard 'G' designation often associated with lead-free compliance. Confirm RoHS status and specific packaging options such as tape and reel or cut tape directly with the manufacturer or authorized distributors to ensure compatibility with assembly processes.

Selection Notes

Select this component when a low-voltage, high-speed decoder is required for general-purpose applications. Ensure the design accommodates the specified 2 V to 6 V supply range and that the SOIC-16 footprint fits the PCB layout constraints. Consider thermal management requirements if operating near the upper temperature limits.

Part Context

This component belongs to the broader 74AC family of logic integrated circuits, known for advanced CMOS performance. It serves as a fundamental building block for digital systems requiring address decoding or data selection. The device is manufactured by onsemi, a leading provider of semiconductor solutions for energy-efficient electronics.

Replacement Considerations

Check for direct substitutes like MC74AC138D or MC74ACT138DR2G, ensuring pinout and electrical specifications match. Verify that any alternative maintains the same 16-pin SOIC package and operational voltage range to guarantee seamless integration without redesign.