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There is no universally best FPGA for a satellite or deep-space mission. Start with the mission’s radiation environment, lifetime, workload, fault-tolerance needs and spacecraft resource limits; then compare exact device and package options using evidence that applies to your design. A vendor’s radiation rating is one input—not a guarantee that the FPGA or the spacecraft will survive every mission condition.
What must the FPGA do on this mission?
Define the job before comparing parts. An FPGA used for instrument processing, payload data handling, communications or spacecraft control can face different throughput, interface and recovery requirements. The mission’s orbit or trajectory, expected duration and shielding also shape the radiation environment the design must tolerate.
Turn those needs into a requirements list that the hardware and design teams can evaluate together:
- Mission and environment: orbit or trajectory, operating lifetime, shielding assumptions and the applicable radiation analysis.
- Workload: required logic, memory, DSP, data rate, latency and external-memory support.
- Reliability behavior: which faults can be detected, corrected or recovered from, and how quickly the system must resume operation.
- Spacecraft limits: available power, thermal margin, board area, mass and electrical interfaces.
- Program constraints: package and screening needs, qualification approach, toolchain maturity, engineering schedule, supply and lifecycle cost.
NASA’s historical FPGA-selection material includes cost, single-event-upset sensitivity and reliability among its evaluation criteria. NASA’s spacecraft-avionics survey also shows why technology readiness must be judged for the mission rather than treated as a universal property of a component. Neither provides a one-size-fits-all ranking formula.
#1 Best Overall
- Designed for students and beginners looking to understand Digital Logic, fundamentals of FPGAs
- Features the Xilinx Artix 7 FPGA compatible with Vivado Design Suite WebPACK Edition (free download available from Xilinx)
- On board user interfaces include 16 user switches, 16 LEDs, 5 user pushbuttons, and a
- Expansion opportunities with four Pmod ports including 3 standard 12-pin Pmod ports and 1 dual
- Does NOT ship with micro USB cable
How do TID and single-event effects change the choice?
Total ionizing dose (TID) describes accumulated dose exposure; it does not describe every radiation risk. Single-event effects (SEEs) can include memory or configuration upsets and other disruptive device events. Whether an event is recoverable, disruptive or destructive depends on the particular part, its operating conditions and the system around it.
For every candidate, request test documentation for the exact device and relevant conditions. Check the dose and dose-rate assumptions, bias conditions, applicable heavy-ion or proton coverage, single-event latch-up (SEL) behavior, configuration and user-memory upset behavior, functional-interrupt modes, and any recovery requirements. Confirm how test results relate to the intended package, screening, derating and lifetime assumptions.
Rank #2
- Arty A7 comes in two FPGA variants: Arty A7-35T features Xilinx XC7A35TICSG324-1L. Arty A7-100T features the larger Xilinx XC7A100TCSG324-1.
- Internal clock speeds exceeding 450MHz, On-chip analog-to-digital converter (XADC), Programmable over JTAG and Quad-SPI Flash
- 256MB DDR3L with a 16-bit bus @ 667MHz, 16MB Quad-SPI Flash, USB-JTAG Programming circuitry, Powered from USB or any 7V-15V source
- 10/100 Mbps Ethernet, USB-UART Bridge
- 4 Switches, 4 Buttons, 1 Reset Button, 4 LEDs, 4 RGB LEDs, 4 Pmod connectors, shield connector
Do not compare a TID number from one source with an SEE claim from another as though they were interchangeable measures of overall mission risk. Instead, use the mission radiation analysis to identify the effects that matter, then determine what the part can tolerate and what the design must detect or mitigate.
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How should you compare the candidate FPGA families?
The published figures below are manufacturer-reported family information, not independent, like-for-like test results. They can help form a shortlist, but they do not establish which device fits a particular mission. Confirm every figure against current, part-specific datasheets and radiation-assurance documents.
Rank #3
- [FPGA Chip] GW2AR-18 QN88 FPGA Chip containing 20736 LUT4 logic cells and 15552 Filp-Flops.There are 2 PLL in this FPGA chip, and many DSP units supporting 18 bit x 18 bit multiplication
- [Onboard Debugger ] Sipeed Tang Nano 20K Development Board support JTAG for FPGA, USB to UART for FPGA,USB to SPI for FPGA communication, Control MS5351 generate frequency
- [USB2.0 HS interface] The 27MHz crystal generates the clock for HDMI display, onboard MS5351 clock generating chip also provides mutiple clocks.Support Serial communication, high-speed SPI reception.
- [Application scenarios] Tang Nano 20K Open source Development Board supports game console emulators, drives RGB screens, multiple display outputs, 20K LUT4, RISC-V soft-core experiments.
- [Wiki] "dl.sipeed.com/shareURL/TANG/Nano_20K/1_Datasheet";Any after-Sales Privems, Please Contact us by click "Waypondev" store and ask a question or leave the message in our forum by "forum.youyeetoo .com/".
| Candidate | Published information | What to verify for your design |
|---|---|---|
| Microchip RTG4 | Microchip describes RTG4 as a flash-based radiation-tolerant FPGA and reports TID above 100 krad, configuration-memory-upset and SEL immunity claims above LET 103 MeV·cm²/mg, hardened registers with built-in TMR, SRAM EDAC and package qualification options. Microchip also reports flight heritage. | Exact device and package; test conditions and limits behind each radiation claim; screening and assurance documentation; resources, power and interfaces for the intended implementation. |
| Microchip RT PolarFire | Microchip reports a 481,000-logic-element device, 33 Mb embedded SRAM, 1,480 DSP blocks and 24 high-speed transceiver lanes. The vendor reports 100 krad TID, configuration-upset immunity, an SEL threshold that depends on I/O configuration, a power comparison against competing SRAM FPGAs and QML qualification information for RTPF500ZT. | Exact part and I/O configuration; radiation-test conditions; applicable qualification flow; design-specific power rather than a family-level comparison; fit with board interfaces and workload. |
| AMD Kintex UltraScale XQR | AMD describes XQR as a radiation-tolerant space family and publishes device-specific radiation and qualification-flow information. The reported radiation figures vary among family members. | Use the exact device’s datasheet and test documentation. Determine configuration-management needs, package and qualification applicability, resource fit and design-specific power. |
These family summaries do not provide equivalent figures for every comparison axis, so do not fill gaps by extrapolating from a sibling device or a marketing headline. A family-level claim is a starting point for document review, not proof that the particular part, package or test conditions meet your requirements.
What mitigation does the architecture need?
Reliability depends on the configured design as well as the silicon. Review critical logic, memories, clocks, resets, configuration, interfaces, watchdogs, power cycling, redundancy and recovery paths. Ask what happens when a fault occurs, how it is detected, whether it can be corrected, and whether the system can continue or restart safely.
Rank #4
- The best way to get started with FPGAs: Using a simple board with projects that build on eachother, now anyone can get started with FPGA development!
- Fun peripherals available: With 4 LEDs, 4 push-buttons, 7-segment display, USB connector, a VGA connector, and a PMOD (for expansion) you can have dozens of fun projects available to you out of the box!
- Works with Verilog and VHDL: No matter which programming language you want to get started with, the Go Board will work for you!
- No extra device required: Simply plug the Go Board into a USB port and go! Getting started with FPGAs has never been easier.
- Works with all operating systems: Windows, Mac, Linux
For SRAM-based designs
Assess configuration-bit upsets along with other SEE modes. Depending on the mission and device, the mitigation plan may use triple modular redundancy (TMR), configuration scrubbing, error-detection and correction (EDAC), redundant cores, watchdogs or recovery procedures. These techniques consume resources and can add power, latency and design complexity; evaluate their effectiveness and overhead in the actual implementation.
For any implementation
Identify single points of failure in the FPGA and surrounding system. A corrected memory error does not by itself demonstrate that a corrupted control path, clock, interface or configuration will be contained. Establish fault detection, safe-state behavior and recovery requirements at system level.
Best Value
- Digilent Basys 3 Artix-7 FPGA Trainer Board: Recommended for Introductory Users
NASA’s Jet Propulsion Laboratory guidance strongly recommends in-beam testing of critical SRAM-FPGA flight designs to verify that intended mitigation works. Use radiation analysis to scope testing and, where feasible, test a flight-representative implementation rather than relying only on a component-level headline.
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After radiation and reliability screening, determine whether each candidate can support the workload within the spacecraft’s electrical and thermal budgets. Estimate the intended design’s logic, memory, DSP and transceiver use; static and dynamic power; external-memory needs; thermal dissipation; and board and interface fit. Do not treat a vendor’s general power comparison as a substitute for a design-specific estimate.
Include mitigation overhead in those estimates. Redundant logic, scrubbing, error correction, external configuration storage and additional monitoring can change resource use, power and recovery latency. Also account for toolchain maturity, engineering effort, package availability, qualification work and schedule. A part that meets a radiation requirement can still be a poor program choice if it misses the workload, board or schedule.
How should you validate a shortlist before committing?
- Freeze the mission assumptions. Record the radiation analysis, shielding, operating lifetime, required fault behavior and spacecraft limits used to screen candidates.
- Choose exact part and package candidates. Do not select at family level alone; confirm resource needs, interfaces, package options and applicable qualification or screening flow.
- Review part-specific evidence. Obtain radiation reports and assurance documentation. Match their device, package, test conditions and stated limits to the mission assumptions.
- Build a representative design. Implement the workload and planned mitigation, then assess resource use, power, thermal margin, fault containment and recovery latency.
- Test the mitigation and recovery path. Use the appropriate analysis and test plan; for critical SRAM-FPGA flight designs, NASA JPL guidance strongly recommends in-beam testing to verify mitigation effectiveness.
- Close system-level gaps. Confirm board integration, interfaces, watchdogs, resets, power-cycle behavior, screening, supply and schedule before the design is baselined.
NASA’s RadPC project illustrates one architectural option: a computer built with commercial off-the-shelf FPGAs using redundant cores, background memory scrubbing and error-correction codes. NASA’s description says, “Background memory scrubbing and error correction codes further ensure the computer withstands the effects of radiation.” That describes the project’s architecture; it is not a general guarantee for commercial FPGAs or a recommendation for every mission. NASA’s avionics survey likewise includes system examples pairing a LEON3FT processor with RTG4, but its system-level entries should not be mistaken for controlled, comparable device tests.
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