SN74LV138ARGYR

Overview

The SN74LV138ARGYR is a 3-line to 8-line decoder and demultiplexer manufactured by Texas Instruments. It operates within a supply voltage range of 2 V to 5.5 V and features three binary address inputs and eight active-low outputs. The device includes two active-low enable inputs and one active-high enable input for chip selection control. It is housed in a 16-pin VQFN package with dimensions of 4 mm x 3.5 mm. The component supports standard logic levels and is designed for low-voltage digital applications requiring efficient signal routing.

Feature Summary

• Provides decoding and demultiplexing functions via three binary address lines controlling eight distinct output channels
• Incorporates multiple enable inputs allowing flexible system integration and power management through active-low and active-high control signals
• Operates across a wide supply voltage range suitable for diverse low-voltage digital environments

Applications

• Address decoding in embedded systems
• Data routing in digital communication interfaces
• Memory addressing schemes in microcontroller-based designs

Procurement Notes

Verify the specific suffix 'ARGYR' corresponds to the VQFN-16 package variant when sourcing. Confirm RoHS compliance status as indicated in official documentation. Ensure compatibility with operating temperature ranges specified for automotive or industrial grades if applicable. Cross-reference datasheet revision history for any pinout or electrical characteristic updates prior to final design implementation.

Selection Notes

Select this component when a low-voltage 3-to-8 decoder is required with minimal footprint. The VQFN package offers space efficiency compared to traditional SOIC options. Consider the enable logic polarity requirements against existing control signals. Evaluate power consumption needs against the LV series specifications for optimal system efficiency.

Part Context

This part belongs to the SN74LV138A family of decoders and demultiplexers from Texas Instruments. The family provides standardized logic functions for digital signal processing. Variants differ primarily by packaging and qualification standards, such as automotive grade options like the AQWBQBRQ1 model.

Replacement Considerations

Direct substitutes include other SN74LV138A variants with compatible pinouts. Verify package equivalence between VQFN and alternative footprints before substitution.