55501EFJ

Overview

The Rochester Electronics LLC 55501EFJ is a high-speed CMOS logic device belonging to the 54/74FXX series. It functions as an octal buffer and line driver with 3-state outputs, designed for driving high-capacitance loads and bus-oriented systems. The component utilizes a standard ceramic flat package configuration suitable for military or industrial environments requiring robust performance. Key electrical parameters include a supply voltage range of 4.5V to 5.5V, propagation delays typical of the F-series speed grade, and defined output drive capabilities. The device supports parallel data transmission applications where signal integrity and noise immunity are critical requirements.

Feature Summary

• Octal buffer architecture providing eight independent signal paths
• Three-state output control for efficient bus sharing
• High-speed CMOS technology for rapid switching transitions
• Robust packaging for demanding operational environments

Applications

• Bus-oriented memory systems
• Clock distribution networks
• High-speed data transmission lines

Procurement Notes

Verify the specific suffix designation against official manufacturer documentation to confirm pin compatibility and electrical tolerances. Ensure the source provides traceability to original semiconductor fabrication standards. Confirm that the component meets required environmental specifications for intended deployment conditions before integration into final assemblies.

Selection Notes

Select this component when designing systems requiring multiple buffered signals with controlled impedance characteristics. Evaluate the 3-state functionality against system bus arbitration requirements. Consider the package type and thermal dissipation capabilities relative to the host board layout constraints and ambient operating temperatures.

Part Context

Rochester Electronics specializes in sourcing and distributing obsolete and hard-to-find electronic components. This part represents a legacy logic device maintained for continued support in existing infrastructure. The company ensures quality through rigorous testing protocols, bridging the gap between original equipment manufacturers and end-users requiring long-term availability.

Replacement Considerations

Consult official cross-reference guides for compatible equivalents within the same logic family. Verify pinout compatibility and electrical parameter alignment before substitution. Ensure any replacement maintains the required 3-state functionality and speed grades for system stability.