54L51FM/B

Overview

The 54L51FM/B is a quad 2-input NOR gate manufactured by Rochester Electronics. It belongs to the 54L series of TTL logic devices, characterized by low power consumption. The component is housed in a ceramic dual in-line package (CDIP) with 14 pins, designated as CDIP14. It is designed for operation within the full military temperature range of -55°C to 125°C. The device implements the Boolean function Y = NOT(A AND B) for four independent channels.

Feature Summary

• Provides four independent 2-input NOR logic functions
• Operates reliably across the full military temperature spectrum
• Utilizes ceramic DIP packaging for enhanced durability

Applications

• Military aerospace electronic systems
• High-reliability industrial control circuits
• Harsh environment digital logic processing

Procurement Notes

Verify that the specific lot number and date code align with project requirements. Confirm the package type matches the PCB footprint specifications. Ensure the supplier provides traceability documentation consistent with QML standards. Check for any specific handling instructions related to ceramic packages. Validate that the component meets the required environmental certifications for the intended application.

Selection Notes

Select this component when low power dissipation is critical alongside military-grade temperature stability. The 54L series offers a balance between speed and power suitable for battery-operated or heat-sensitive military applications. Consider the ceramic package for superior thermal and mechanical performance compared to plastic alternatives. Ensure the design accommodates the specific pinout and voltage levels defined for the 54L family.

Part Context

Rochester Electronics specializes in manufacturing components using original IP or dies from authorized suppliers. The 54L51FM/B is produced under strict quality controls, often adhering to MIL-PRF-38535 Class Q standards. This ensures the device meets or exceeds original manufacturer specifications. The company serves as a continuous source for legacy and high-reliability semiconductors.

Replacement Considerations

Direct substitutes include other 54L-series quad 2-input NOR gates such as SN54L02 variants from Texas Instruments or National Semiconductor, provided they match the military temperature range and ceramic package requirements. Verify functional equivalence and pin compatibility before substitution.