74VHC138MTCX

Signal Switches, Multiplexers, Decoders Overview

The Fairchild Semiconductor 74VHC138MTCX is a high-speed CMOS decoder/demultiplexer belonging to the 74VHC logic family. It features a single 3-to-8 decoder circuit with active-low outputs and three enable inputs. The device operates within a supply voltage range of 2V to 5.5V and utilizes a 16-pin TSSOP surface-mount package. It supports operation across an industrial temperature range from -40°C to +85°C, ensuring reliable performance in various electronic applications requiring efficient signal decoding.

Signal Switches, Multiplexers, Decoders Feature Summary

• Provides one 3-to-8 decoder circuit for address decoding or data distribution
• Features three enable inputs for flexible system control and power management
• Delivers high-speed switching capabilities characteristic of VHC technology
• Offers low input current characteristics suitable for battery-powered designs

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in microprocessor-based systems
• Data distribution networks requiring signal routing
• Industrial control systems operating in harsh environments
• Consumer electronics utilizing low-voltage logic interfaces

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm the package type matches the required 16-TSSOP footprint and ensure the voltage ratings align with your system design. Review RoHS compliance documentation to meet environmental regulations. Validate that the specific lot codes correspond to current production standards before finalizing procurement orders.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a single 3-to-8 decoder is required within a 2V to 5.5V operational window. The TSSOP-16 package offers space efficiency for dense PCB layouts. Consider the VHC series speed and power trade-offs compared to standard HC or LV families. Ensure the three enable inputs match your system's control logic requirements for proper device activation.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the broader 74VHC138 family of decoders manufactured by Fairchild Semiconductor, now part of onsemi. The 74VHC series represents high-speed CMOS technology compatible with standard TTL levels while offering improved power consumption. The MTCX suffix indicates the specific TSSOP-16 packaging configuration used for surface-mount assembly processes.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include the onsemi 74VHC138MTCX and Nexperia 74VHC138D. Verify pin compatibility and electrical parameters before substitution. Alternative packages such as SOIC may require mechanical adaptation.