SN74LV138APWR

Overview

The SN74LV138APWR is a 3-to-8 line decoder and demultiplexer from Texas Instruments' LV logic series. It features three address inputs and eight active-low outputs, controlled by two active-low enable inputs and one active-high enable input. The device operates within a supply voltage range of 2 V to 5.5 V and supports surface-mount installation in a TSSOP-16 package. It exhibits a propagation delay of 15 ns and functions reliably across an operating temperature range from -40°C to +85°C.

Feature Summary

• Provides decoding and demultiplexing functionality with three address lines and eight active-low outputs
• Includes dual active-low and single active-high enable inputs for flexible control
• Supports wide supply voltage operation ranging from 2 V to 5.5 V

Applications

• Address decoding in embedded systems
• Demultiplexing data signals in digital circuits
• Chip select generation in memory architectures

Procurement Notes

Verify the specific suffix APWR corresponds to the TSSOP-16 package and commercial temperature grade (-40°C to +85°C). Confirm RoHS compliance status through official manufacturer documentation or authorized distributor datasheets before procurement. Ensure the ordering part number matches the required lead time and packaging format specifications.

Selection Notes

Select this component when a low-voltage compatible decoder with wide supply flexibility is required. The LV series offers performance characteristics suitable for mixed-voltage applications. Verify that the TSSOP-16 package dimensions fit the target PCB layout constraints and that the thermal requirements align with the commercial operating temperature range.

Part Context

This part belongs to the SN74LV138A family of decoders and demultiplexers manufactured by Texas Instruments. The LV series is designed for low-voltage applications, providing compatibility with various digital logic families. The APWR designation specifically identifies the TSSOP-16 surface-mount package variant within this product line.

Replacement Considerations

SN74LV138APWRG4 is a verified equivalent part number representing the same functional device with Green/RoHS-compliant manufacturing attributes.