RTAX2000SL-1CQ352PROTO - 2M-Gate Rad-Tolerant FPGA | Actel
MPN: RTAX2000SL-1CQ352PROTO ✓ Active| Qty | Unit Price | Extended |
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Drop-in alternatives for RTAX2000SL-1CQ352PROTO — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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RTAX2000SL-1CQ352V
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$2050 / Unit
View Datasheet →RTAX2000SL-1CQ352E
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RTAX2000SL-1CQ352B
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RTAX2000S-1CQ352V
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View Datasheet →RTAX2000DL-1CQ352B
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$3420 / Unit
View Datasheet →RTAX4000SL-1CQ352E
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$3840 / Unit
View Datasheet →RTAX1000SL-CQ352V
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View Datasheet →RTAX2000SL-1CQ352PROTO Maximum Ratings & Electrical Characteristics
| Family | RTAX-S/SL Radiation-Tolerant FPGAs |
| Equivalent System Gates | 2,000,000 |
| Configurable Logic Blocks (CLBs) | 21,504 |
| Logic Cells | 32,256 |
| ASIC Gate Equivalent | 250,000 |
| Process Technology | CMOS, antifuse interconnect |
| Package | CQFP-352 (ceramic quad flat pack) |
| Terminal Pitch | 0.500 mm |
| Programmability | One-Time Programmable (antifuse, OTP) |
| Configuration | Live at power-up, single-chip |
| Embedded Memory | Embedded SRAM with FIFO control logic |
| Radiation Tolerance | Radiation-tolerant (space-flight qualified family) |
| Variant Designation | PROTO (prototyping device) |
| Mounting Type | Surface Mount |
RTAX2000SL-1CQ352PROTO cqfp-352 (ceramic quad flat pack) Pin Configuration Guide
Complete pinout information for RTAX2000SL-1CQ352PROTO (cqfp-352 (ceramic quad flat pack) 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-1CQ352PROTO.
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-1CQ352PROTO is suitable for 6 applications: Satellite Payload Data Processing, Spacecraft Command and Telemetry Handling, Design Prototyping and Verification, Instrument Control in Deep-Space Probes, Radiation-Tolerant Glue Logic and Bus Bridging, Space-Qualifiable Embedded Signal Processing.
Satellite Payload Data Processing
The RTAX2000SL-1CQ352PROTO's 2,000,000 equivalent gates, 32,256 logic cells, and embedded SRAM blocks with built-in FIFO control make it well matched to on-board payload data formatting, buffering, and compression pipelines in LEO and GEO satellites. Its antifuse, live-at-power-up fabric means payload logic is operational immediately after power-on without configuration delay, an important property for payloads that must begin acquiring or downlinking data promptly after eclipse exit. Data paths are implemented in the SL fabric with pipelining to meet throughput targets, while SEU-sensitive control registers are protected with TMR. Because the PROTO variant is intended for verification, payload designers validate the full processing chain on this device before committing flight-grade RTAX2000SL-1CQ352V units in the identical CQFP-352 footprint.
Recommended
Spacecraft Command and Telemetry Handling
Spacecraft bus avionics require telemetry encoders, command decoders, and time-tagged sequencers that must never fail to start. The RTAX2000SL's single-chip, live-at-power-up antifuse architecture eliminates external configuration memory - a common failure point in SRAM FPGAs - so command and telemetry logic is active from the first clock edge after power application. The chip-wide highway routing and segmentable clock resources simplify distribution of a mission clock across decoder, formatter, and FIFO interfaces. Implemented in the 21,504-CLB fabric, telemetry front ends occupy a small fraction of available logic, leaving room for growth. Engineering teams use the PROTO variant to validate CCSDS framing, CRC generation, and 1553-adjacent glue logic before building flight units, per the AC170 verification requirement.
Recommended
Design Prototyping and Verification
The PROTO suffix defines this device's primary role: hardware prototyping of RTAX-S/SL designs before one-time-programmable flight units are burned. Because antifuse FPGAs cannot be reprogrammed, Microchip application note AC170 mandates that pin assignment, place-and-route, timing verification, and simulation all be completed using the RTAX-S/SL target, with Libero SoC optionally converting the design to a commercial Axcelerator device for reprogrammable iteration. Aldec ACT-H3Ki-CQ352 adaptors add a flash-based ProASIC3E prototyping path powered via the CQ352 leads or an onboard connector. The RTAX2000SL-1CQ352PROTO supports this flow with identical package and pinout to flight parts, catching I/O, timing, and integration issues early and de-risking expensive OTP flight silicon.
Recommended
Instrument Control in Deep-Space Probes
Science instruments on deep-space probes demand logic that tolerates total ionizing dose and single-event effects over multi-year missions while consuming minimal power. The RTAX2000SL's CMOS antifuse fabric offers low static power, and the SL variant improves configuration-memory radiation tolerance relative to the base RTAX2000S. Instrument sequencers, ADC/DAC interface glue, and detector timing generators fit comfortably within the 32,256 logic cells, with embedded SRAM FIFOs buffering science data bursts. Live-at-power-up behavior ensures instrument control recovers automatically after safe-mode power cycles without ground intervention. Teams prototype detector timing and TMR-protected sequencing on this PROTO unit, then transfer the verified design to flight-grade RTAX2000SL-1CQ352V parts in the same CQFP-352 socket-compatible footprint.
Recommended
Radiation-Tolerant Glue Logic and Bus Bridging
Many spacecraft boards still mix legacy MIL-STD interfaces, custom serial links, and modern peripherals that need bridging logic which must survive the space environment. The RTAX2000SL provides 2,000,000 gates of antifuse fabric in a hermetic CQFP-352 ceramic package suited to high-reliability assembly flows, implementing bus bridges, interrupt controllers, memory controllers, and arbitration logic in a single radiation-tolerant device. Single-chip integration removes external configuration parts from the reliability calculation, and deterministic antifuse routing supports timing closure for interface logic with fixed setup/hold budgets. Designers use the PROTO variant to bring up board-level interoperability with real peripheral silicon, verifying electrical timing against the actual CQFP-352 pinout before flight-unit programming.
Recommended
Space-Qualifiable Embedded Signal Processing
The RTAX2000SL integrates arithmetic-friendly logic cells and embedded SRAM with FIFO control, enabling moderate-rate DSP functions - FIR filters, FFTs, FFT-windowing, and correlators - in space hardware without a separate DSP device. Fabric-based multiply-accumulate pipelines can be sized to mission throughput, while the 250,000 ASIC gate equivalent density metric helps map algorithm complexity to silicon area. Antifuse determinism simplifies timing sign-off for pipelined datapaths, a significant advantage over SRAM FPGA reconfiguration variability in qualification campaigns. Low static power suits power-constrained platforms such as smallsats. Engineers develop and time-close the signal-chain design using the RTAX-S/SL flow on this PROTO device, then release the verified netlist to flight-grade RTAX2000SL-1CQ352V silicon.
Recommended
Recommended Products Summary
Engineering reference data for RTAX2000SL-1CQ352PROTO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | RTAX2000SL-1CQ352V | RTAX2000SL-1CQ352E | RTAX2000SL-1CQ352B | RTAX4000SL-1CQ352E | RTAX1000SL-CQ352V |
|---|---|---|---|---|---|---|
| Package | CQFP-352 | CQFP-352 - same | CQFP-352 - same | CQFP-352 - same | CQFP-352 - same | CQFP-352 - same |
| Brand | Actel (Microchip Technology) | Actel (Microchip Technology) | Actel (Microchip Technology) | Actel (Microchip Technology) | Actel (Microchip Technology) | Actel (Microchip Technology) |
| Equivalent System Gates | 2,000,000 | 2,000,000 | 2,000,000 | 2,000,000 | 4,000,000 | 1,000,000 |
| Logic Cells | 32,256 | 32,256 | 32,256 | 32,256 | [DATA_NEEDED] | [DATA_NEEDED] |
| Variant Role | PROTO (prototyping) | Flight / space grade | Engineering grade | Screened grade (-55C to +125C) | Engineering grade, higher density | Flight / space grade, lower density |
| Configuration Memory Tolerance | SL enhanced | SL enhanced | SL enhanced | SL enhanced | SL enhanced | SL enhanced |
| Programmability | Antifuse OTP, live at power-up | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP |
| Terminal Pitch | 0.500 mm | 0.500 mm | 0.500 mm | 0.500 mm | 0.500 mm | 0.500 mm |
Key Differentiators
- Dedicated prototyping variant (vs RTAX2000SL-1CQ352V)
- Same-footprint density upgrade path (vs RTAX4000SL-1CQ352E)
- Live-at-power-up single-chip operation (vs SRAM-based Xilinx space FPGAs)
Design Notes
Per Microchip application note AC170, all design work - pin assignment, place-and-route, timing verification, and simulation - must be done using the RTAX-S/SL device. Libero SoC may convert the design to an Axcelerator device for reprogrammable prototyping, but the reverse flow is never permitted. Prototyping on Axcelerator alone risks missing RTAX-specific timing and I/O behavior. Burn antifuse flight units only after full verification on PROTO or engineering-grade hardware.
The CQFP-352 package has a 0.500 mm terminal pitch with lead-frame inductances typical of large ceramic quad flat packs. For high-speed I/O, keep series termination resistors close to the package and use short, impedance-controlled traces. Assign switching signals away from clock terminals and use the segmentable clock resources for distribution. Verify power integrity with adequate decoupling on all VDD/VSSI lead groups distributed around the 352-terminal perimeter.
Antifuse FPGAs are one-time programmable: an incorrect programming run cannot be recovered. Establish a controlled programming procedure with checksum verification, and program flight-grade RTAX2000SL-1CQ352V units only after design freeze. For SEU robustness, apply TMR to control registers and state machines in the fabric; the SL variant improves configuration tolerance but user flip-flops still require mitigation in radiation environments.
Compliance Information
Space-grade ceramic-packaged device; hermetic CQFP packaging and screening flow per Microchip space products. RoHS/REACH status not stated in verified web data.
