SN74LS151DR

Overview

The SN74LS151DR is an active, production-stage 8-to-1 data selector and multiplexer manufactured by Texas Instruments. It belongs to the SN74LS151 series and utilizes a bipolar LS logic family. The device is housed in a 16-pin SOIC (D) package with a large tape-and-reel configuration. It operates within a supply voltage range of 4.75V to 5.25V and supports a commercial temperature range from 0°C to 70°C. The component features NIPDAU lead finish and meets Level-1-260C-UNLIM moisture sensitivity standards.

Feature Summary

• Provides complete binary decoding to select one of eight data sources
• Features complementary outputs for standard and inverted signals
• Includes enable inputs for controlling data flow

Applications

• Data routing in digital systems
• Waveform generation circuits
• Parallel-to-serial data conversion

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type and reel specifications. Ensure the procurement channel provides documentation confirming RoHS compliance and the correct manufacturing date code. Cross-reference the part number with official Texas Instruments catalogs to validate availability status and any recent design changes or lifecycle notices before finalizing orders.

Selection Notes

Select this component when a low-speed, 8-channel multiplexing function is required within standard TTL voltage levels. The LS logic family offers moderate speed suitable for general-purpose digital applications. Consider the SOIC package for surface-mount assembly requirements. Verify that the operating environment remains within the specified commercial temperature range and that power supply stability aligns with the 5V logic family characteristics.

Part Context

This component is part of the broader SN74LS151 family of data selectors. It serves as a fundamental building block for digital logic designs requiring signal selection. The DR suffix specifically denotes the SOIC package variant with tape-and-reel packaging, distinguishing it from through-hole or smaller footprint alternatives within the same logical family.

Replacement Considerations

The SN74LS151D is a pin-compatible alternative offering identical logical functionality in a similar SOIC package format without the tape-and-reel specification.