When should a program choose radiation-tolerant FPGAs instead of rad-hard FPGAs?

Radiation-tolerant FPGAs may be appropriate when mission duration, exposure profile, redundancy, and acceptable upset tolerance support a balanced performance and survivability pathway. Fully hardened devices are required where radiation margin dominates performance needs.

What are configuration SEUs and why do they matter for FPGAs?

Configuration single-event upsets can alter FPGA behavior in radiation-exposed environments. Scrubbing, EDAC, redundancy, device selection, and mission exposure modeling help determine whether a given FPGA pathway is appropriate.

Can commercial FPGAs be used in space or defense programs?

Commercial FPGAs may be viable when evaluated through a structured qualification-aligned pathway that considers radiation, timing stability, power behavior, lifecycle continuity, and mission consequence severity.

How does FPGA obsolescence affect mission-critical systems?

FPGA obsolescence can affect timing closure, configuration assumptions, package compatibility, and qualification boundaries. Replacement requires structured pathway determination, not simple part substitution.

FPGA - US Semiconductor

FPGA Platforms for Deterministic and Radiation-Conscious Architectures

Deterministic and Radiation Conscious Architectures

Field-Programmable Gate Arrays (FPGAs) provide adaptable compute architectures for mission-critical systems requiring deterministic performance, high-throughput processing, and reconfigurable logic.

US Semiconductor supports programs in determining and supplying FPGA pathways aligned to mission-defined qualification requirements, radiation exposure profiles, and lifecycle continuity.

FPGA Architecture Variables

Logic density

Processing capability

Deterministic Timing

Control-loop stability

Radiation susceptibility

Upset tolerance

Power consumption

Thermal stability

Lifecycle continuity

Long-term program viability

Radiation-Conscious FPGA Strategy

Space and high-altitude missions require evaluation of TID accumulation, SEE susceptibility, and LET thresholds. Structured pathway determination ensures FPGA platforms align to mission exposure without unnecessary hardened overhead.

FPGA Device Classes in Mission-Critical Systems

Mission-critical architectures typically evaluate several FPGA classes depending on performance requirements, environmental exposure, and lifecycle expectations.

RADIATION-HARDENED FPGAS

Fully radiation-hardened FPGA platforms are designed for high-radiation environments such as deep-space missions and high-reliability defense systems. These devices offer defined radiation tolerance thresholds but may involve higher cost and limited lifecycle availability.

RADIATION-TOLERANT FPGAS

Radiation-tolerant FPGA devices provide intermediate protection for environments such as LEO missions and avionics platforms where exposure levels remain below deep-space thresholds.

COMMERCIAL COTS FPGAS

Commercial FPGA platforms may support mission systems when aligned with structured qualification strategies and mitigation techniques such as redundancy and configuration scrubbing.

Deterministic FPGA Behavior in Control Architectures

FPGAs frequently serve as the deterministic compute backbone for guidance, navigation, payload processing, and real-time control systems.

Engineers evaluating FPGA pathways typically consider:

Architectural Risks in FPGA Platforms

Common risks include configuration upsets, timing drift under thermal stress, vendor discontinuation, and compatibility issues across replacement devices.

Execution Model

US Semiconductor provides FPGA components aligned to mission-defined qualification requirements, defines pathway strategies across radiation-hardened, radiation-tolerant, and commercial platforms, coordinates validation where required, and preserves deterministic system behavior and lifecycle continuity.

Define the Right Memory Pathway Before Redesign Becomes Necessary

Early alignment of voltage compatibility, package continuity, radiation exposure, and lifecycle continuity protects schedule integrity and mission stability.

Discuss a Component Challenge

Program Inquiry

WHY ARE FPGA USED IN MISSION-CRITICAL SYSTEMS?

They provide deterministic, reconfigurable logic for control systems, signal processing, and real-time operations where stable timing is required.

HOW DOES RADIATION AFFECT FPGA BEHAVIOR?

Radiation can cause configuration upsets or functional errors. Mitigation strategies such as scrubbing and redundancy are often required.

CAN COMMERCIAL FPGA BE USED IN AEROSPACE SYSTEMS?

Yes, when aligned with structured qualification and mitigation strategies. Suitability depends on mission exposure and system design.

WHAT ARE THE BIGGEST RISKS WHEN SELECTING AN FPGA?

Configuration instability, radiation susceptibility, and lifecycle discontinuity can all impact long-term system performance.