RTAX4000D-1CQ352B - 4M-Gate Rad-Tolerant FPGA 1.5V | Microchip
Référence : RTAX4000D-1CQ352B ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $3200 | $3 200,00 |
| 10 | $3050 | $30 500,00 |
| 100 | $2900 | $290 000,00 |
| 500 | $2750 | $1 375 000,00 |
| 1 000 | $2600 | $2 600 000,00 |
RTAX4000D-1CQ352B Présentation
A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the total ionizing dose (TID) and single-event effects encountered in space-flight orbits, where commercial silicon would suffer logic upsets or parametric degradation. The RTAX-S/SL and RTAX-DSP family sits within the broader hierarchy of space-grade programmable logic, positioned above commercial FPGAs and below full rad-hard ASICs, offering ASIC-like reliability with FPGA flexibility for satellites, spacecraft avionics, and planetary instruments.
Key features include 4 million system gates implemented on a 0.15 um CMOS antifuse-based architecture, a maximum combinatorial CLB delay of 0.99 ns for high-speed pipelined logic, and true single-chip form factor with live-at-power-up operation - no configuration PROM is required because antifuse programming is non-volatile. The D-suffix DSP variant adds embedded multiply-accumulate capability for onboard signal processing such as image filtering, FFT, and error correction.
The architecture derives from the commercial Axcelerator family, providing embedded SRAM with built-in FIFO control logic, segmentable clock conditioning, and chip-wide resources, all hardened for the space radiation environment. The -1 speed grade (industrial/commercial temperature bin B) balances performance and availability for most flight programs.
Typical applications include satellite payload data processing, spacecraft bus control, sensor interface and telemetry, and reconfigurable signal processing on remote-sensing platforms where single-chip implementation reduces board mass, power, and reliability risk.
A key design consideration: unlike SRAM FPGAs, the antifuse fabric is one-time programmable, so design freeze and flight-unit programming must be planned early; also ensure the 1.5V core supply stays within the 1.425V to 1.575V window for timing compliance.
This page synthesizes distributor inventory intelligence, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour RTAX4000D-1CQ352B — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec RTAX4000D-1CQ352B (même facteur de forme et même empreinte) — différant par Package, Radiation Tolerance, Family, Configuration, Logic Cells.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
RTAX4000D-CQ352B
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Voir la fiche technique →RTAX4000D-1CQ352V
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Voir la fiche technique →RTAX4000D-CQ352V
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Voir la fiche technique →RTAX4000D-CQ352E
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Voir la fiche technique →RTAX4000DL-CQ352E
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Voir la fiche technique →RTAX4000DL-1CQ352E
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$3300 / unité
Voir la fiche technique →RTAX4000D-1CQ352B Valeurs maximales et caractéristiques électriques
| Family | RTAX-DSP Radiation-Tolerant FPGA |
| Equivalent System Gates | 4000000 gates |
| Logic Cells | 55440 cells |
| Configurable Logic Blocks (CLBs) | 36960 CLBs |
| Core Supply Voltage (Nominal) | 1.5 V |
| Core Supply Voltage Range | 1.425 V to 1.575 V |
| Combinatorial CLB Delay (Max) | 0.99 ns |
| Process Technology | 0.15 um CMOS |
| Programmability Type | Antifuse (OTP), live at power-up |
| Speed Grade | -1 |
| Boîtier | 352-pin Ceramic CQFP (CQ352) |
| Type de montage | Surface Mount |
| Technology | CMOS, Digital |
| Radiation Tolerance | Radiation-tolerant (space flight) |
| Embedded SRAM | Yes (with built-in FIFO control logic) |
| Operating Temperature Bin | B |
| Statut RoHS | unknown |
Guide de configuration des broches du RTAX4000D-1CQ352B 352-pin ceramic cqfp (cq352)
Configuration des broches du RTAX4000D-1CQ352B (boîtier 352-pin ceramic cqfp (cq352)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour RTAX4000D-1CQ352B.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
RTAX4000D-1CQ352B convient pour 6 applications: Satellite Payload Data Processing, Spacecraft Bus Control and Avionics, Onboard Image and Signal Processing, Telemetry, Tracking and Command (TT&C), Instrument Control and Sensor Interface, Launch Vehicle and Re-entry Avionics.
Satellite Payload Data Processing
The RTAX4000D-1CQ352B fits satellite payload processing chains because its DSP-enhanced die integrates multiply-accumulate blocks and 4 million gates (36,960 CLBs), enough to implement image compression, FFT, and forward-error-correction pipelines on a single chip. The 0.99 ns maximum combinatorial CLB delay supports clock rates in the tens of MHz to low hundreds of MHz typical of payload data formatting. Used between the sensor front-end and the telemetry downlink, the FPGA formats, filters, and compresses data in real time; its antifuse fabric adds no configuration-cell static power and requires no boot PROM, cutting board mass and single-point failures - a decisive advantage in mass- and reliability-constrained low-Earth-orbit payloads.
Recommandé
Spacecraft Bus Control and Avionics
Spacecraft bus controllers benefit from the RTAX4000D-1CQ352B's live-at-power-up antifuse technology: logic is functional immediately when the satellite powers on after launch-vehicle separation, with no configuration load time or PROM read errors. The 4M-gate capacity implements attitude-control interfaces, mode-state machines, CCSDS telemetry encoders, and MIL-STD-1553 or SpaceWire glue logic concurrently. Operating from a 1.5V core (1.425V-1.575V) directly compatible with standard space power rails via simple point-of-load regulation, the device's radiation-tolerant design targets total ionizing dose and single-event requirements of typical orbits. Segmentable clock resources let designers gate unused clock domains, reducing bus-controller power during safe mode.
Recommandé
Onboard Image and Signal Processing
Remote-sensing and Earth-observation instruments use the RTAX4000D-1CQ352B's DSP blocks to perform real-time image filtering, 2-D convolution, and coherent accumulation at the sensor output, before telemetry bandwidth limits apply. With 55,440 logic cells plus dedicated MAC resources, a single CQ352 device replaces multiple fixed-function signal chains, shortening the signal path and reducing interface radiation exposure. Designers typically pipeline sensor data through the FPGA at 30-100 MHz using the -1 speed grade's 0.99 ns CLB delay, while the embedded SRAM with built-in FIFO control logic buffers line data between acquisition bursts. The one-time-programmable fabric also protects flight algorithms from configuration upsets in flight.
Recommandé
Telemetry, Tracking and Command (TT&C)
TT&C subsystems demand deterministic, always-on logic - exactly what the RTAX4000D-1CQ352B delivers with its non-volatile antifuse configuration and radiation-tolerant CMOS process. The device implements command decoders, frame synchronizers, encryptors, and time-tag distribution across its 36,960 CLBs, with generous capacity left for redundancy voting schemes such as triple-modular redundancy on critical registers. Its 352-pin ceramic CQFP package offers the hermeticity and thermal cycling robustness required for launch environments, and surface-mount assembly is compatible with standard high-reliability assembly flows. Power draw remains low because the fabric has no SRAM configuration bits to refresh during dormant cruise phases.
Recommandé
Instrument Control and Sensor Interface
Science instruments on planetary probes and observatories interface detectors (CCDs, APDs, spectrometers) to the spacecraft through RTAX4000D-1CQ352B logic: the FPGA generates detector clocking, sequences exposures, digitizes and buffers streams using embedded SRAM FIFOs, and packetizes data for the payload bus. The radiation-tolerant qualification and single-chip form factor suit instruments where repair is impossible and mass is priced per gram. Designers exploit the 4M-gate headroom to implement adaptive gain control and on-instrument event filtering, downlinking only science-relevant data. Because the fabric is one-time programmable, instrument firmware is frozen and verified before integration, simplifying mission assurance reviews compared with reconfigurable SRAM FPGAs.
Recommandé
Launch Vehicle and Re-entry Avionics
Launch vehicles and re-entry systems need flight logic that is instantly operational through high-vibration, high-radiation flight phases; the RTAX4000D-1CQ352B's antifuse configuration cannot be shaken loose or corrupted by configuration-memory upsets, and its ceramic CQFP package withstands severe thermal gradients. The 0.99 ns CLB delay and -1 speed grade support tight control-loop latencies for guidance, navigation, and sequencing functions, while 4 million gates consolidate redundant-channel voting, safety interlocks, and telemetry formatting into one hermetic device. Using one radiation-tolerant FPGA instead of multiple commercial parts reduces assembly joints and connector interfaces - common failure sites during launch shock and acoustic environments.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour RTAX4000D-1CQ352B — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | RTAX4000D-CQ352B | RTAX4000D-1CQ352V | RTAX4000D-CQ352E | RTAX4000DL-CQ352E |
|---|---|---|---|---|---|
| Package | 352-pin Ceramic CQFP (CQ352) | CQ352 - same | CQ352 - same | CQ352 - same | CQ352 - same |
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Equivalent Gates | 4,000,000 | 4,000,000 | 4,000,000 | 4,000,000 | 4,000,000 |
| Logic Cells | 55,440 | 55,440 | 55,440 | 55,440 | 55,440 |
| Core Supply Voltage | 1.5 V (1.425-1.575 V) | 1.5 V | 1.5 V | 1.5 V | 1.5 V |
| Speed Grade | -1 (0.99 ns max CLB delay) | Standard (slower than -1) | -1 | Standard (slower than -1) | Standard (DL power variant) |
| Screening Level | B bin | B bin | V flow | E flow | E flow |
| DSP Blocks | Yes (D die) | Yes (D die) | Yes (D die) | Yes (D die) | Yes (DL die) |
Principaux différenciateurs
- Faster -1 speed grade (vs RTAX4000D-CQ352B)
- DSP-enhanced die (vs RTAX4000SL-1CQ352E)
- Lower-power DL option available (vs RTAX4000DL-1CQ352E)
- Single-chip live-at-power-up operation (vs SRAM FPGAs (e.g., commercial equivalents))
Notes de conception
Regulate the 1.5V core rail to stay within 1.425V-1.575V under all load and radiation conditions. Use a rad-tolerant point-of-load regulator with output tolerance analysis covering line, load, temperature, and TID drift; a rail outside the window invalidates the 0.99 ns worst-case CLB timing. Estimated: even a +/-5% total error band consumes the entire 1.425-1.575V window, so budget regulator accuracy carefully and add bulk and 0.1 uF decoupling at the CQ352 power pins per Microchip power application guidance.
The antifuse fabric is one-time programmable: RTAX4000D flight units cannot be reprogrammed after programming, so complete timing closure, design reviews, and radiation-effects mitigation (TMR on control registers) before submitting the programming file. Do not confuse prototype parts with flight units - Microchip notes PROTO units are offered in non-hermetic ceramic packages with identical timing attributes, but they are not qualified for flight. Order flight-lot parts with the correct screening suffix (B/V/E) documented in traceability paperwork.
The 352-pin ceramic CQFP (CQ352) is a large, fragile ceramic package with fine-pitch gull-wing leads. Handle with lead-forming fixtures, avoid lead re-bending after tinning, and use standard high-reliability SMT profiles compatible with hermetic ceramic bodies - thermal mass is high, so preheat thoroughly. Provide corner support or tie-down features on the PCB because the package weight makes it vulnerable to launch vibration; follow the Microchip package mechanical drawing for land pattern and keep-out dimensions.
Informations de conformité
Hermetic ceramic CQFP space-grade packaging; RoHS/REACH status not stated in provided data - space-grade ceramic parts may carry specific exemptions. Confirm compliance certificates with Microchip for the flight lot.
