74LV138D-Q100J

Signal Switches, Multiplexers, Decoders Overview

The Nexperia 74LV138D-Q100J is a 3-to-8 line decoder and demultiplexer qualified to AEC-Q100 Grade 1. It decodes three binary weighted address inputs (A0, A1, A2) into eight mutually exclusive active LOW outputs (Y0 to Y7). The device features three enable inputs: two active LOW (E1, E2) and one active HIGH (E3). It operates on a single supply voltage ranging from 1.0 V to 5.5 V. The component is housed in an SO16 plastic small outline package (SOT109-1) and supports ambient temperatures from -40 °C to +125 °C.

Signal Switches, Multiplexers, Decoders Feature Summary

• Automotive qualification compliant with AEC-Q100 Grade 1 standards for high reliability.
• Wide supply voltage range supporting low voltage applications down to 1.0 V.
• Demultiplexing capability using active LOW enable inputs as data strobes.
• Direct interface compatibility with TTL logic levels.

Signal Switches, Multiplexers, Decoders Applications

• Memory chip select decoding
• Automotive electronic control units
• Parallel expansion of decoder systems

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix 'J' against official Nexperia documentation to confirm packaging details. Ensure the selected variant matches the required temperature range and package type for the target automotive application design.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when AEC-Q100 Grade 1 qualification is mandatory. It is suitable for designs requiring direct TTL interfacing or operation across a wide voltage spectrum. Verify that the SO16 package dimensions fit the available PCB space constraints.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the Nexperia 74LV series of low-voltage CMOS logic devices. The Q100 suffix indicates automotive-grade qualification. The D package denotes the SO16 surface-mount form factor used for compact circuit board integration.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Check Nexperia's official replacement lists for updated versions of the 74LV138 family. Verify pinout and electrical specifications before substituting with other manufacturers' equivalents.

Signal Switches, Multiplexers, Decoders FAQ

How does the device function as a demultiplexer?

It functions as a demultiplexer by utilizing one of the active LOW enable inputs as the data input while the remaining enable inputs serve as strobes.

What is the purpose of the multiple enable inputs?

The multiple enable inputs allow for easy parallel expansion of the decoder to larger configurations, such as a 1-of-32 decoder system.