SN74HC298N

Overview

The SN74HC298N is a high-speed CMOS logic device manufactured by Rochester Electronics, LLC. It functions as a quad 2-input multiplexer with address selection and active-low outputs. The component belongs to the 74HC series, ensuring compatibility with standard CMOS logic families. It features four independent multiplexing channels, each capable of selecting between two data inputs based on address lines. The device is designed for applications requiring signal routing and data selection in digital systems.

Feature Summary

• Quad 2-input multiplexer architecture providing four independent signal selection channels
• Active-low output configuration for direct interfacing with logic circuits
• High-speed CMOS technology compatible with standard 74HC logic families
• Address selection capability for precise data path control

Applications

• Digital signal routing in communication systems
• Data selection in microprocessor-based interfaces
• Address decoding in memory systems
• Signal switching in test and measurement equipment

Procurement Notes

Verify manufacturer authenticity through authorized distributors. Confirm package type matches design requirements. Check datasheet revisions for electrical parameter updates. Ensure supply chain stability for production continuity. Validate component markings against official specifications.

Selection Notes

Evaluate voltage compatibility with target system operating levels. Consider propagation delay requirements for high-speed applications. Assess power consumption constraints for battery-operated designs. Verify temperature range suitability for environmental conditions. Confirm pinout compatibility with existing PCB layouts.

Part Context

Rochester Electronics specializes in sourcing and distributing legacy and discontinued semiconductor components. The SN74HC298N represents their offering of standard logic devices from the 74HC family. This part maintains functional equivalence with original manufacturer specifications while providing availability for ongoing production needs.

Replacement Considerations

Compatible substitutes include equivalent quad 2:1 multiplexers from other manufacturers within the 74HC logic family. Verify pin-to-pin compatibility before substitution. Cross-reference electrical characteristics to ensure performance parity. Consult official replacement guides for validated alternatives.