55501EFD/BZA

Overview

The 55501EFD/BZA is a high-reliability logic integrated circuit manufactured by Rochester Electronics, LLC. It belongs to the SN54/74 series of 2-wide 4-input AND-OR-INVERT gates. The device performs the Boolean function Y=ABCD+EFGH+X, where X represents an expandable input derived from compatible SN54H60/SN74H60 or SN54H62/SN74H62 outputs. Designed for robust performance in demanding environments, this component is characterized for operation over the full military temperature range of -55°C to 125°C. It is produced under strict quality controls including ISO-9001 and AS9120 certifications, ensuring compliance with MIL-PRF-38535 Class Q Military standards.

Feature Summary

• Implements a 2-wide 4-input AND-OR-INVERT logic function with expandable input capability
• Qualified for full military temperature range operation from -55°C to 125°C
• Manufactured under MIL-PRF-38535 Class Q Military quality standards

Applications

• Military avionics systems requiring high-reliability logic control
• Space-level electronic equipment subject to extreme thermal variations
• Defense communication infrastructure utilizing standard TTL-compatible logic families

Procurement Notes

Verify that the specific BZA suffix corresponds to the intended package configuration and lead time requirements. Confirm that the manufacturer's current production run aligns with your project's long-term supply needs. Ensure that the component meets all necessary environmental qualification standards for your specific deployment scenario before finalizing procurement orders.

Selection Notes

Select this component when a 2-wide 4-input AND-OR-INVERT gate is required for military-grade applications. Consider the expandable input feature if system design necessitates additional logic inputs via compatible H-series devices. Verify that the -55°C to 125°C operating range matches the environmental conditions of the target application platform.

Part Context

Rochester Electronics specializes in sustaining obsolete semiconductor technologies, providing continued production of licensed products like the 55501EFD/BZA. This part is part of their extensive inventory of critical components, often sourced from original wafers or recreated IP with original manufacturer approval. The company serves as a critical supplier to the Defense Logistics Agency (DLA), maintaining stocks of legacy logic families essential for defense and aerospace maintenance.

Replacement Considerations

Direct substitutes include other variants within the SN54H55 family, such as the SN54H55J or SN54H55K, provided they meet the same military temperature and reliability specifications. Ensure any replacement maintains the expandable input functionality if utilized in the original design.