SN74LS151N

Overview

The SN74LS151N is an 8-input multiplexer manufactured by Texas Instruments in the SN74LS151 series. It features a 16-pin PDIP package for through-hole mounting. The device operates with a supply voltage range of 4.75V to 5.26V and supports CMOS/TTL outputs. It functions as a single 8-to-1 data selector within a temperature range of 0°C to 70°C.

Feature Summary

• Provides complete binary decoding to select one of eight data sources
• Includes a strobe input that forces standard output low when high
• Delivers complementary outputs (Y and Y_bar) for flexible logic integration

Applications

• Digital circuit data routing
• Microcontroller system display interfaces
• Implementation of arithmetic logic units such as full adders and subtractors

Procurement Notes

Verify the specific suffix 'N' confirms the PDIP package type and lead-free compliance status against current manufacturer documentation. Ensure the application environment remains within the specified 0°C to 70°C operating temperature range and strictly adheres to the 4.75V to 5.26V power supply limits to maintain signal integrity.

Selection Notes

Select this component when an 8-channel data selection function is required with TTL-compatible outputs. The SN74LS151N is suitable for designs needing complementary outputs and through-hole assembly. Verify that the LS logic speed meets timing requirements, as it differs from HC or HCT series alternatives.

Part Context

This part belongs to the SN74LS151 family of 8-input multiplexers. It is designed for general-purpose digital logic applications requiring reliable data switching. The device integrates internal binary decoding to simplify address line connections, making it a standard choice for legacy and robust digital system architectures.

Replacement Considerations

SN74LS151D: Same logical function but in SOIC surface-mount package. SN74HC151: Higher speed CMOS alternative with wider voltage range. SN54LS151: Military grade version with extended temperature range.