SNJ54LVC138AW

Signal Switches, Multiplexers, Decoders Overview

The SNJ54LVC138AW is a military-grade 3-to-8 line decoder and demultiplexer manufactured by Texas Instruments. It operates from a supply voltage of 2 V to 3.6 V with inputs accepting voltages up to 5.5 V. The device features inverted outputs and three enable inputs (two active-low, one active-high). Propagation delay is typically 5.8 ns at 3.3 V. It is housed in a ceramic flatpack package designed for high-performance memory decoding and data routing applications.

Signal Switches, Multiplexers, Decoders Feature Summary

• Operates within a wide supply voltage range of 2 V to 3.6 V while maintaining compatibility with 5-V logic inputs.
• Features three enable pins allowing flexible system expansion without requiring external inverters.
• Provides low output ground bounce characteristics to minimize signal integrity issues during switching.

Signal Switches, Multiplexers, Decoders Applications

• High-performance memory decoding systems
• LED matrix display column selection
• Data routing in mixed-voltage environments

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix 'W' corresponds to the ceramic flatpack package variant required for your design. Confirm that the military temperature range (-55°C to 125°C) aligns with your operational environment specifications. Ensure input voltage levels do not exceed the absolute maximum ratings to prevent permanent damage.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when military-grade reliability and extended temperature operation are required. It is suitable for designs needing fast propagation delays and 5-V tolerant inputs in lower voltage systems. Consider alternative packages if surface-mount technology is preferred over through-hole ceramic packaging.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the SN54LVC138A family, which includes commercial variants like the SN74LVC138A. The SNJ prefix indicates a military-grade version with stricter manufacturing controls and environmental testing compared to standard commercial logic devices.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SNJ54LVC138AJ

Signal Switches, Multiplexers, Decoders FAQ

How many enable inputs does the SNJ54LVC138AW have?

It has three enable inputs: two active-low (G2A, G2B) and one active-high (G1).

Can this device interface directly with 5-V logic signals?

Yes, the inputs accept voltages up to 5.5 V, allowing direct interfacing with 5-V devices even when operating at lower supply voltages.