SN74ALS151DR

Overview

The SN74ALS151DR is an 8-line to 1-line data selector or multiplexer manufactured by Texas Instruments. It belongs to the ALS logic family and operates within a supply voltage range of 4.5 V to 5.5 V. The device features eight data inputs, three enable inputs, and complementary outputs. It is housed in a 16-pin SOIC package designed for surface mount installation. The component supports operation at temperatures ranging from 0°C to +70°C.

Feature Summary

• Provides high-speed data selection capabilities using Advanced Low-power Schottky technology
• Features complementary outputs for direct interfacing with various logic families
• Includes multiple enable inputs to facilitate system expansion and control

Applications

• Data routing in digital communication systems
• Address decoding in microprocessor-based designs
• Waveform generation circuits

Procurement Notes

Verify the specific suffix 'D' confirms the SOIC-16 surface-mount package variant. Confirm the 'R' indicates reel packaging if applicable to your handling requirements. Ensure the ALS logic family specifications match your existing circuit design constraints before procurement.

Selection Notes

Select this component when requiring fast switching speeds within standard 5V logic environments. The ALS series offers a balance between power consumption and performance suitable for general-purpose digital applications. Verify that the 16-pin SOIC footprint aligns with your PCB layout requirements.

Part Context

This part is part of the SN74ALS151 series, which includes variants like SN74ALS151N and SN74ALS151AN. These devices are widely used in legacy and modern digital systems requiring reliable 8-to-1 multiplexing functions. The DR suffix specifically denotes the tape-and-reel version of the SOIC package.

Replacement Considerations

Compatible substitutes include SN74LS151 for lower speed requirements and SN74HC151 for CMOS compatibility. Verify pinout and electrical characteristics match before substitution.