74LCX138SJ

Signal Switches, Multiplexers, Decoders Overview

The 74LCX138SJ is a low-voltage CMOS 1-of-8 decoder and demultiplexer manufactured by Fairchild Semiconductor, now part of onsemi. It operates within a supply voltage range of 2 V to 3.6 V and functions across an industrial temperature range of -40°C to +85°C. The device features three binary address inputs and eight active-low outputs, housed in a 16-pin SOP package. It includes three enable inputs for flexible system control.

Signal Switches, Multiplexers, Decoders Feature Summary

• Decodes three-bit binary addresses into one of eight active-low output lines
• Operates with low supply voltage for energy-efficient applications
• Includes multiple enable inputs for precise signal routing control

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in memory systems
• Demultiplexing data streams in communication interfaces
• Control logic in embedded microcontroller systems

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix SJ corresponds to the required 16-SOP packaging and tape-and-reel or tube quantity specifications. Check RoHS compliance documentation against current regulatory standards. Ensure the source provides valid traceability records for quality assurance purposes.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a single input must be routed to one of eight distinct outputs based on binary addressing. Verify that the operating voltage aligns with the 2 V to 3.6 V specification. Consider the SOP-16 footprint constraints during PCB layout. Ensure the enable pin logic requirements match the system design.

Signal Switches, Multiplexers, Decoders Part Context

This device belongs to the 74LCX family of low-voltage CMOS logic ICs. It serves as a standard solution for digital signal routing and address decoding tasks. The LCX series is designed for compatibility with modern low-power digital systems requiring high-speed performance and wide operating voltage ranges.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Check for equivalents such as the 74LCX138 from other manufacturers. Verify pinout compatibility and electrical characteristics before substitution. Ensure the replacement supports the same 16-SOP package and voltage range.