RTAX2000SL-1CQ256PROTO - 2M-Gate Rad-Tolerant FPGA | Microchip
MPN: RTAX2000SL-1CQ256PROTO ✓ Active| Qty | Unit Price | Extended |
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| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
Drop-in alternatives for RTAX2000SL-1CQ256PROTO — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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RTAX2000SL-CQ256V
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View Datasheet →RTAX2000SL-1CQ256B
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RTAX2000S-1CQ256PROTO
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$1595 / Unit
View Datasheet →RTAX2000SL-1CQ256PROTO Maximum Ratings & Electrical Characteristics
| Equivalent System Gates | 2,000,000 |
| Configurable Logic Blocks (CLBs) | 21,504 |
| Family | RTAX-S/SL Radiation-Tolerant FPGA |
| Logic Architecture Base | Axcelerator commercial architecture |
| Program Technology | Antifuse (One-Time Programmable) |
| Speed Grade | 1 |
| Package | CQ256 (256-pin ceramic quad flat package) |
| Device Grade | PROTO (prototype / engineering) |
| Embedded Memory | Embedded SRAM with built-in FIFO control logic |
| Radiation Tolerance | Radiation-tolerant (space-flight class) |
| Configuration Retention | Non-volatile, live at power-up |
| Clocking Features | Segmentable clocks, chip-wide highway routing |
| Mounting Type | Surface Mount |
RTAX2000SL-1CQ256PROTO cq256 (256-pin ceramic quad flat package) Pin Configuration Guide
Complete pinout information for RTAX2000SL-1CQ256PROTO (cq256 (256-pin ceramic quad flat package) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for RTAX2000SL-1CQ256PROTO.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
RTAX2000SL-1CQ256PROTO is suitable for 6 applications: Satellite Payload Data Processing, Spacecraft Bus Control and Housekeeping, Deep-Space Instrument Control, Launch Vehicle Avionics, Radiation Test Vehicle and SEE Characterization, Prototype Validation with Reprogrammable Flow.
Satellite Payload Data Processing
The RTAX2000SL-1CQ256PROTO fits satellite payload processing where 2,000,000 equivalent gates and 21,504 CLBs provide enough capacity for on-board data compression, packet formatting, and FFT preprocessing. The antifuse configuration is immune to configuration upsets from single-event effects, eliminating the external configuration PROM required by SRAM FPGAs and removing boot-time exposure to radiation-induced reload failures. The SL die variant reduces static power versus the standard RTAX-S die, which matters in power-limited payload buses. Embedded SRAM with built-in FIFO control logic buffers high-rate sensor streams, while chip-wide highway routing sustains data flow between processing blocks. Used as the PROTO engineering device, it validates the flight design before procurement of screened V-grade units on the same CQ256 footprint.
Recommended
Spacecraft Bus Control and Housekeeping
For spacecraft bus control, the RTAX2000SL-1CQ256PROTO implements telemetry/telecommand interfaces, mode control state machines, power-switch sequencing, and watchdog logic. Live-at-power-up antifuse configuration means bus control logic is operational the instant spacecraft power is applied, with no configuration load time - critical during launch sequencing and eclipse recovery. The segmentable clock structure supports multiple independent clock domains for redundant command chains, and the 21,504 CLB fabric absorbs interface standards (MIL-STD-1553-type framing, UART, SPI) without external glue logic. Low power consumption of the SL die eases the housekeeping power budget. Prototyping on the PROTO unit allows bus designers to lock pin assignments before ordering flight devices in the identical CQ256 ceramic package.
Recommended
Deep-Space Instrument Control
Deep-space instruments - imagers, spectrometers, and particle detectors - require logic that survives years of total ionizing dose and heavy-ion flux. The RTAX2000SL-1CQ256PROTO serves as the engineering vehicle for such designs: its 2,000,000 gates implement detector readout sequencing, co-addition, and timing generators, while embedded SRAM FIFOs decouple slow instrument cycles from high-rate downlink bursts. Because antifuse cells are permanently programmed, configuration integrity cannot degrade over mission life, an advantage the Microchip RTAX-S datasheet highlights for space-flight systems. Carry-chain arithmetic supports on-board calibration math. Design teams validate timing and I/O assignments on the PROTO unit, then transfer the identical netlist to the same-package flight device, avoiding any footprint or pinout respin.
Recommended
Launch Vehicle Avionics
Launch vehicle flight computers, separation logic, and telemetry encoders demand deterministic, radiation-tolerant logic with zero configuration latency. The RTAX2000SL-1CQ256PROTO allows avionics developers to complete hardware validation on a prototype-grade device: the 21,504-CLB fabric implements redundant voter logic, discrete I/O conditioning, and time-tagged event capture, and the chip-wide highway routing simplifies distributing global timing signals across the die. Live-at-power-up operation ensures flight logic is armed as soon as pyro or battery buses are applied, with no boot dependency. The PROTO device de-risks the design at engineering budget, after which the identical CQ256 footprint accepts screened flight-grade RTAX2000SL parts for qualification and mission builds without PCB modification.
Recommended
Radiation Test Vehicle and SEE Characterization
Radiation test campaigns need hardware whose configuration cannot flip under heavy-ion exposure, making the antifuse RTAX2000SL an ideal test vehicle. Using the PROTO-grade RTAX2000SL-1CQ256PROTO, test engineers build shift-register chains, mitigation monitors, and clock-stress circuits across the 2,000,000-gate fabric to characterize single-event latchup and single-event upset rates of the surrounding board electronics. The CQ256 ceramic package supports socketed or carrier-mounted test setups, and the one-time-programmable fabric guarantees that any observed errors originate in the device-under-test, not in the controller FPGA configuration. Results gathered on the PROTO unit directly inform mitigation design for the flight version, which is procured on the identical pin-compatible footprint.
Recommended
Prototype Validation with Reprogrammable Flow
Because antifuse devices are one-time programmable, iterative firmware debugging on RTAX2000SL flight die is expensive. A proven workflow pairs the RTAX2000SL-1CQ256PROTO with the Aldec RTAX prototyping adaptor, which maps the RTAX netlist onto flash-based ProASIC3E technology for rapid reprogrammable emulation. The PROTO device then serves as the final one-shot verification target: timing-verified with Libero speed-grade-1 models, pin assignments locked to the CQ256 footprint, and design frozen before programming. This two-stage flow - reprogrammable emulation followed by PROTO antifuse validation - delivers flight-ready confidence while conserving the engineering budget, since only fully verified designs consume antifuse units ahead of the screened flight-grade procurement.
Recommended
Recommended Products Summary
Engineering reference data for RTAX2000SL-1CQ256PROTO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | RTAX2000SL-CQ256V | RTAX2000SL-1CQ256B | RTAX2000S-1CQ256PROTO |
|---|---|---|---|---|
| Package | CQ256 (256-pin ceramic QFP) | CQ256 - same | CQ256 - same | CQ256 - same |
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology |
| Equivalent System Gates | 2,000,000 | 2,000,000 | 2,000,000 | 2,000,000 |
| CLBs | 21,504 | 21,504 | 21,504 | 21,504 |
| Device Grade / Screening | PROTO (engineering) | V (space flight) | B (hi-rel screened) | PROTO (engineering) |
| Speed Grade | -1 | [DATA_NEEDED] | -1 | -1 |
| Die Variant (Static Power) | SL (low static power) | SL (low static power) | SL (low static power) | S (standard static power) |
| Program Technology | Antifuse (OTP), live at power-up | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
Key Differentiators
- Engineering-grade cost with flight-identical footprint (vs RTAX2000SL-CQ256V)
- Low static power SL die (vs RTAX2000S-1CQ256PROTO)
- Antifuse OTP configuration immunity (vs Commercial SRAM FPGAs (e.g., A3PE3000 family))
Design Notes
RTAX-S/SL devices are antifuse one-time programmable: a programmed PROTO unit cannot be erased or reprogrammed. Complete full RTL simulation, timing closure with Libero speed-grade-1 models, and pin assignment review before generating the programming file. Reserve flight pin assignments on the CQ256 footprint from the first engineering build so the netlist transfers unchanged to the screened flight device. The Aldec RTAX prototyping adaptor (ProASIC3E flash-based) can emulate the design reprogrammably before committing an antifuse unit.
Choose the SL die deliberately: RTAX2000SL offers lower static power than the RTAX2000S in the same package, which is usually decisive in power-limited satellite buses. Budget power using the Libero SmartPower tool with realistic toggle rates; dynamic power in the 21,504-CLB fabric typically dominates at high clock rates while static power differentiates the S and SL die. Estimated: any board-level power figure must combine core, I/O, and per-bank I/O currents from the manufacturer power calculator, not rule-of-thumb values.
The CQ256 ceramic package requires attention to thermal-expansion matching on the PCB: use materials compatible with the ceramic body's CTE to avoid solder-joint fatigue over qualification temperature cycling. Follow the Microchip RTAX-S/SL datasheet package section for land pattern and lead-forming guidance for 256-pin CQFP leads, and verify lid orientation and pin-1 marking against the package drawing before routing, since CQFP pin numbering is counter-clockwise around the package.
Compliance Information
Ceramic CQFP hermetic packages for space-grade FPGAs typically have specific RoHS/lead exemptions; qualification is per space/hi-rel flows (e.g., QML class V context referenced in Microchip DLA Cross Reference Guide). No explicit RoHS/REACH statement appeared in the provided data.
