74ACT138SCX

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74ACT138SCX is a high-speed CMOS logic device belonging to the 74ACT series, functioning as a 1-of-8 decoder or demultiplexer. It features three address inputs and eight active-low outputs, housed in a 16-pin SOIC surface-mount package. The component operates within a supply voltage range of 4.5 V to 5.5 V and supports a wide operating temperature range from -40°C to +85°C. Designed for low power consumption and fast switching speeds, it ensures reliable signal decoding in digital systems.

Signal Switches, Multiplexers, Decoders Feature Summary

• Provides one-of-eight decoding capability with active-low outputs for precise signal routing
• Utilizes advanced CMOS technology to achieve high-speed operation while maintaining low power dissipation
• Features robust input structures compatible with standard TTL logic levels

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in microprocessor-based memory systems
• Demultiplexing data streams in communication interfaces
• Control logic circuits requiring single-line to multiple-output selection

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'SCX' corresponds to the tape-and-reel packaging format intended for automated assembly processes. Confirm that the RoHS compliance status aligns with current environmental regulations for your region. Ensure the ordering quantity matches the reel specifications provided by the manufacturer to avoid handling discrepancies during production integration.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a single-channel 3-to-8 decoder is required within the 74ACT family specifications. It is suitable for designs needing 5V operation with improved speed over standard 74LS counterparts. Consider the SOIC-16 package dimensions for PCB layout constraints and verify thermal management requirements for the specified operating temperature range.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the widely adopted 74ACT logic family, known for balancing performance and power efficiency. The 74ACT138 variant specifically addresses applications requiring efficient address decoding. As an onsemi product, it adheres to industry-standard pinouts and electrical characteristics, ensuring compatibility with existing designs utilizing similar logic families.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include MC74ACT138DG and MC74ACT138DTR2G from onsemi, which offer identical logical functions but may differ in packaging such as tube or TSSOP formats. Cross-manufacturer equivalents like CD74ACT138M from Texas Instruments are also available, though verification of pin compatibility and electrical parameters is recommended.