SN74LS153D

Overview

The SN74LS153D is a dual 4-line to 1-line data selector/multiplexer from the Texas Instruments LS series. It integrates two independent multiplexers within a single 16-pin PDSO package. Each unit features four data inputs, two address select lines, and an active-low enable input. The device provides true outputs for selected data channels based on binary decoding of the address inputs.

Feature Summary

• Dual independent 4-to-1 multiplexing architecture
• Binary address decoding for channel selection
• Active-low enable control functionality

Applications

• Data routing in digital logic circuits
• Implementation of combinational logic functions
• Address decoding systems

Procurement Notes

Verify the manufacturer marking matches Texas Instruments specifications. Confirm the suffix 'D' indicates the SOIC-16 package variant. Ensure the component meets required operating temperature ranges for the specific application environment before integration.

Selection Notes

Select this component when dual independent 4-input multiplexing is required within the standard LS TTL logic family constraints. Consider pin compatibility with existing PCB layouts designed for 16-pin surface mount packages.

Part Context

This part belongs to the widely adopted 74LS logic family, known for standard TTL voltage levels and moderate switching speeds. It serves as a fundamental building block for sequential and combinational digital design tasks requiring signal selection capabilities.

Replacement Considerations

Compatible equivalents include SN74LS153N (PDIP) and generic 74LS153 variants from other manufacturers such as ON Semiconductor or Motorola, provided pinouts and electrical characteristics remain identical.