CD74HCT154E

Overview

The CD74HCT154E is a high-speed CMOS 4-to-16 line decoder/demultiplexer manufactured by Texas Instruments. It features a DIP-24 package with 24 pins and includes two enable inputs for control. The device operates within the HCT logic series, ensuring compatibility with standard TTL levels while utilizing CMOS technology for low power consumption.

Feature Summary

• Provides decoding of four binary select lines into sixteen distinct active-low outputs
• Incorporates dual enable inputs to manage device activation and disable states
• Utilizes silicon gate CMOS technology for high-speed operation and reduced power dissipation

Applications

• Memory address decoding in digital systems
• Data routing and demultiplexing applications
• Control signal distribution in microprocessor interfaces

Procurement Notes

Verify the specific suffix 'E' corresponds to the PDIP-24 package variant when sourcing. Confirm RoHS compliance status as indicated in official datasheets. Ensure the component matches the HCT logic family specifications for voltage and interface compatibility before integration.

Selection Notes

Select this component when a single chip must decode four bits into sixteen separate lines. The HCT series ensures direct interfacing with TTL logic families without level shifting. Consider the DIP-24 form factor for through-hole mounting requirements in legacy or prototyping designs.

Part Context

This part belongs to the Texas Instruments CD74HCT series of high-speed CMOS logic devices. It serves as a fundamental building block for digital logic circuits requiring wide decoding capabilities. The series is designed to offer performance comparable to older transistor-transistor logic standards while maintaining modern CMOS efficiency.

Replacement Considerations

Check for equivalent parts within the same 74HCT decoder family. Verify pinout compatibility and logical function equivalence before substitution. Ensure any alternative maintains the same package type and electrical characteristics.