100371QC

Overview

The Fairchild Semiconductor 100371QC is a high-speed ECL multiplexer belonging to the 100K series. It integrates three independent 4-to-1 multiplexers within a single package, providing complementary outputs for each function. The device utilizes an emitter-follower output configuration and operates in a plastic LCC-28 (PLCC) package measuring 11.51 mm by 11.51 mm. Designed for demanding digital applications, it supports operation up to 85 °C and features RoHS compliance.

Feature Summary

• Integrates three independent 4:1 multiplexing functions
• Provides complementary outputs for signal routing flexibility
• Utilizes ECL technology for high-speed switching performance
• Features open-emitter output structure

Applications

• High-speed data routing systems
• ECL-based logic circuits
• Digital signal processing interfaces
• Telecommunications equipment requiring fast multiplexing

Procurement Notes

Verify the specific manufacturer source, as Fairchild Semiconductor has undergone integration with ON Semiconductor. Confirm that the component meets current environmental standards and matches the exact PLCC-28 package dimensions. Ensure compatibility with existing ECL power supplies and termination networks before finalizing procurement.

Selection Notes

Select this component when designing systems requiring multiple parallel 4:1 multiplexing channels with low propagation delay. The complementary output capability simplifies differential signaling requirements. Ensure the design accommodates the thermal characteristics of the plastic LCC package and the specific voltage levels required for ECL operation.

Part Context

This part belongs to the Fairchild 100K series of ECL logic devices, known for high-speed performance. The 100371QC specifically addresses the need for compact, multi-channel multiplexing in legacy or specialized high-frequency digital architectures. It represents a standard solution for routing multiple data lines efficiently within ECL-compatible system designs.

Replacement Considerations

Check for direct equivalents from ON Semiconductor following the Fairchild integration. Verify pinout compatibility and electrical parameters against alternative ECL multiplexers if sourcing from other manufacturers. Ensure substitute parts support the same 28-pin PLCC form factor.