DM74LS151N

Overview

The DM74LS151N is a 1-of-8 line data selector/multiplexer manufactured by onsemi. It features full on-chip decoding to select one of eight data sources based on three address inputs. The device includes a strobe input that must be at a low logic level to enable operation; a high level forces the W output HIGH and Y output LOW. It provides complementary outputs (Y and W). Recommended operating conditions specify a supply voltage range of 4.75V to 5.25V, with an operating free air temperature range of 0°C to +70°C.

Feature Summary

• Selects one of eight data lines using full on-chip decoding
• Performs parallel-to-serial conversion
• Provides complementary outputs for flexible signal routing
• Capable of functioning as a Boolean function generator

Applications

• Multiplexing multiple data lines into a single output channel
• Parallel-to-serial data conversion in digital systems
• Implementation of combinational logic functions

Procurement Notes

Verify the package type matches the required footprint, specifically the 16-Lead Plastic Dual-In-Line Package (PDIP) designated by the 'N' suffix. Confirm the manufacturer origin, as this component was originally produced by Fairchild Semiconductor before acquisition by onsemi. Ensure the application environment stays within the specified 0°C to +70°C operating temperature range and utilizes the recommended 5V supply voltage.

Selection Notes

Choose the DM74LS151N when a standard TTL-compatible 8-input multiplexer is required for general-purpose digital logic applications. Consider the PDIP package for through-hole prototyping or legacy board designs. Evaluate propagation delay requirements against the datasheet specifications if timing constraints are critical for the specific system architecture.

Part Context

This component belongs to the 74LS series of logic integrated circuits, known for Low-power Schottky technology. It serves as a fundamental building block for data routing and selection in digital electronics. The device is part of a broader family of multiplexers and demultiplexers used to manage signal paths in microprocessor systems and industrial control interfaces.

Replacement Considerations

Compatible substitutes include other 74LS151 variants from different manufacturers, such as SN74LS151. Verify pin compatibility and electrical characteristics before substitution.