74VHCT138ASJ

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74VHCT138ASJ is a high-speed CMOS 3-to-8 decoder and demultiplexer housed in a 16-pin SOP package. It operates within a supply voltage range of 2.0 V to 5.5 V, ensuring compatibility with standard logic families. The device features low input capacitance for reduced power consumption and supports wide operating temperatures from -40°C to +85°C. Designed for high-performance applications, it delivers fast propagation delays while maintaining stable signal integrity across various digital systems.

Signal Switches, Multiplexers, Decoders Feature Summary

• High-speed CMOS technology enables rapid switching speeds suitable for demanding digital applications.
• Wide supply voltage operation allows seamless integration with both 2V and 5V logic systems.
• Low input capacitance design minimizes dynamic power consumption during signal transitions.

Signal Switches, Multiplexers, Decoders Applications

• Address decoding in microprocessor-based memory systems
• Data routing in communication interface circuits
• Control signal distribution in industrial automation equipment

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific suffix 'SJ' against the manufacturer's current datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure the SOP-16 package dimensions align with your PCB footprint constraints. Cross-reference RoHS compliance status if environmental regulations apply to your production environment.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when a 3-to-8 decoding function is required with high-speed performance and low power consumption. The VHCT series ensures TTL-compatible inputs while offering CMOS output drive capabilities. Consider the operating temperature range and supply voltage flexibility when designing for varying environmental conditions or mixed-voltage systems.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74VHCT logic family, which combines the speed of VHCT technology with TTL-compatible input thresholds. It serves as a critical component in digital logic designs requiring efficient address decoding or data demultiplexing. The SOP-16 package provides a compact solution for space-constrained printed circuit board layouts.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Check for direct equivalents such as the 74VHC138 variant if TTL-compatible inputs are not strictly necessary. Verify pin compatibility with other 3-to-8 decoders like the MC74HCT138A if system voltage levels differ. Confirm package similarity before substituting to avoid rework.