RTAX250SL-1CG624V - 250k-Gate Rad-Tolerant FPGA | Microchip
MPN: RTAX250SL-1CG624V β Active| Qty | Unit Price | Extended |
|---|---|---|
| 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 RTAX250SL-1CG624V β same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
RTAX250SL-1CG624
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
RTAX250SL-1LG624V
β Drop-Inπ Reference alternative (not in catalog)
RTAX250SL-1CG624M
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
RTAX250S-1CG624
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
RTAX250SL-1CG624V Maximum Ratings & Electrical Characteristics
| Family | RTAX-S/SL Radiation-Tolerant FPGA |
| Equivalent Gates | 250000 gates |
| Logic Cells | 4224 |
| CLBs | 2816 |
| User I/O Inputs | 248 |
| User I/O Outputs | 248 |
| Core Supply Voltage | 1.425 V to 1.575 V |
| Technology | CMOS, antifuse |
| Configuration | Live at power-up, single-chip |
| Speed Grade | -1 |
| Package | 624-pin ceramic column grid array (CGA) |
| Mounting Type | Surface Mount |
| Radiation Tolerance | Radiation-tolerant (space-flight) |
| SEU Characterization | SEU-optimized SL fabric generation |
RTAX250SL-1CG624V 624-pin ceramic column grid array (cga) Pin Configuration Guide
Complete pinout information for RTAX250SL-1CG624V (624-pin ceramic column grid array (cga) 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 RTAX250SL-1CG624V.
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
RTAX250SL-1CG624V is suitable for 6 applications: Satellite Payload Data Processing, Spacecraft Bus Control and Housekeeping, Radiation-Tolerant Glue Logic Integration, Telemetry and Telecommand Interfaces, Launch Vehicle and Avionics Electronics, Design Prototyping of RTAX Space Designs.
Satellite Payload Data Processing
The RTAX250SL-1CG624V fits satellite payload processing where 250,000 gates and 4224 logic cells provide sufficient fabric for framing, encoding, and buffering functions while keeping static power low - a decisive factor in payload power budgets. Its 248-input/248-output I/O count interfaces payload sensors, memories, and downlink chains on a single chip. The antifuse, live-at-power-up configuration means the payload FPGA is operational the moment rails are applied, with no configuration device whose read path could be upset by SEUs. Designers implement TMR on critical registers using the Microchip Libero SEU-mitigation flow, and the ceramic CGA package supports the solder-column mounting used on high-reliability space boards. The trade-off versus reprogrammable parts is one-time programmability, accepted in exchange for configuration-immunity.
Recommended
Spacecraft Bus Control and Housekeeping
Spacecraft bus controllers, mode sequencers, and housekeeping logic benefit from the RTAX250SL-1CG624V's deterministic single-chip operation. The register-rich 2816-CLB fabric implements state machines, watchdog logic, and Telemetry/Telecommand (TM/TC) formatting with ample registers for pipeline and redundancy structures. Core operation at 1.5V nominal (1.425V to 1.575V) keeps dynamic power modest, and the antifuse fabric contributes near-zero configuration current. Because the configuration is permanent, bus-control logic is live at power-up after eclipse exit or safe-mode recovery without a boot sequence - a reliability advantage recognized across the RTAX-S/SL user base. Designers interface redundant MIL-std-style serial links to the 248 user I/O and apply the recommended radiation design hardness assurance flow from the RTAX-S/SL datasheet.
Recommended
Radiation-Tolerant Glue Logic Integration
One classic use of the RTAX250SL-1CG624V is collapsing dozens of discrete space-grade SSI/MSI devices - address decoders, bus transceivers, and interface adapters - into one 250,000-gate device, reducing board area, solder joints, and assembly cost while improving reliability. The 248-input/248-output budget accommodates multi-bus bridging between legacy 5V-tolerant style interfaces and modern 1.5V-core subsystems, with I/O banks configurable per the RTAX-S/SL datasheet. The SL fabric's SEU-optimized design reduces soft-error concern in combinational-heavy glue logic, and antifuse cells cannot lose configuration. Libero IDE maps legacy schematics directly to RTAX-S/SL tiles, and prototype units (same timing attributes as flight units, per the datasheet) let teams validate the integration before committing to one-time-programmable flight parts.
Recommended
Telemetry and Telecommand Interfaces
TM/TC chains demand known-good operation at power application and tolerance of single-event effects in orbit - both native attributes of the RTAX250SL-1CG624V. Its 4224 logic cells implement CCSDS-style framing, convolutional encoders, and CRC generators with pipelining headroom at the -1 speed grade, while 248 user outputs drive parallel telemetry buses and redundant serial command receivers. The 1.425V to 1.575V core rail simplifies interfacing to low-voltage payload electronics. Because configuration is antifuse-based, the telemetry formatter cannot lose its bitstream to radiation, and designers add TMR plus scrubbing-free architectures for register state. The 624-pin CGA provides the mechanical robustness and column-grid solder attachment standard in launch-vibration environments.
Recommended
Launch Vehicle and Avionics Electronics
Launch vehicle flight electronics and rad-tolerant avionics controllers use the RTAX250SL-1CG624V where mission durations are shorter than deep-space missions but radiation and vibration robustness remain mandatory. The ceramic column grid array package withstands launch vibration profiles typical of CGA-mounted space hardware, and the single-chip live-at-power-up configuration removes boot risk during countdown-critical power sequencing. The 250,000-gate capacity implements flight-event sequencers, redundant-lane voting logic, and sensor aggregation across 248 inputs and 248 outputs. Engineering teams use Libero IDE timing closure at the -1 speed grade and the PROTO prototype path, which the RTAX-S/SL datasheet states carries identical timing attributes to flight units in non-hermetic ceramic packages, enabling full functional validation before flight-lot programming.
Recommended
Design Prototyping of RTAX Space Designs
The Microchip/Aldec prototyping flow pairs the RTAX250SL-1CG624V design flow with a flash-based ProASIC3E adaptor, allowing designers to iterate RTL in the lab before committing to the one-time-programmable antifuse flight device. Because RTAX antifuse parts cannot be reprogrammed, this flow is the de facto standard for validating timing, I/O assignment, and functional behavior of the 250,000-gate design at target clock rates. The RTAX-S/SL datasheet notes that PROTO prototype units carry the same timing attributes as flight units, differing only in non-hermetic ceramic packaging, so measured timing transfers directly to the CG624 flight package. After prototype sign-off, the design is programmed into the RTAX250SL-1CG624V flight unit using Libero IDE and Actel programming hardware.
Recommended
Recommended Products Summary
Engineering reference data for RTAX250SL-1CG624V β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | RTAX250SL-1CG624 | RTAX250SL-1LG624V | RTAX250S-1CG624 |
|---|---|---|---|---|
| Package | 624-pin CGA | 624-pin CGA - same | 624-pin CGA (leaded column variant) | 624-pin CGA - same |
| Brand | Microchip Technology (Actel/Microsemi heritage) | Microchip Technology | Microchip Technology | Microchip Technology |
| Equivalent Gates | 250000 | 250000 | 250000 | 250000 |
| Logic Cells | 4224 | 4224 | 4224 | 4224 |
| User I/O (In/Out) | 248 / 248 | 248 / 248 | 248 / 248 | 248 / 248 |
| Core Supply Voltage | 1.425 V to 1.575 V | 1.425 V to 1.575 V | 1.425 V to 1.575 V | 1.425 V to 1.575 V |
| SEU-Optimized SL Fabric | Yes (SL generation) | Yes | Yes | No (standard RTAX-S fabric) |
| Configuration | Antifuse, live at power-up | Antifuse, live at power-up | Antifuse, live at power-up | Antifuse, live at power-up |
Key Differentiators
- SEU-optimized SL fabric generation (vs RTAX250S-1CG624)
- One-time-programmable antifuse configuration immunity (vs SRAM-based space FPGAs)
- Single-chip live-at-power-up operation (vs RTAX250SL-1LG624V)
Design Notes
Power the RTAX250SL-1CG624V core at 1.5V nominal within the 1.425V to 1.575V tolerance specified in the RTAX-S/SL datasheet. Because antifuse fabric draws near-zero configuration current, static power is dominated by I/O bank loads and enabled fabric. Use the Libero IDE power calculator with your post-place-and-route netlist to size rails, and sequence I/O banks per the datasheet power-up requirements to avoid latch-up during hot insertion or eclipse-cycling scenarios common in spacecraft power systems.
The 624-pin ceramic column grid array requires the manufacturer-recommended CGA land pattern and solder-column attachment process. Follow column-grid layout practice: sufficient pad geometry for column collapse, X-ray inspection access for hidden joints, and symmetric thermal relief to avoid warpage during reflow of the ceramic body. Space-flight boards typically use the CGA to absorb CTE mismatch between the ceramic package and the PCB; do not substitute the CGA footprint with a rigid ceramic leadless attachment, which risks solder fatigue under thermal cycling.
With 248 inputs and 248 outputs on a 624-pin CGA, manage simultaneous switching noise by distributing high-toggle outputs across I/O banks and assigning per-bank reference and decoupling per the RTAX-S/SL datasheet I/O section. Simulate flight-flight switching with Libero IDE timing models at the -1 speed grade before routing, and terminate heavily loaded bus outputs. For mission-critical buses, replicate lanes across banks to support board-level redundancy voting.
RTAX-S/SL devices are one-time programmable: a design error after programming a flight unit is unrecoverable. Use the Aldec/Microchip flash-based prototype adaptor or PROTO prototype units, which the datasheet states share identical timing attributes with flight units, to validate the design before committing to antifuse programming. Also confirm the exact version/screening code (C versus L package column, V version) against the RTAX-S/SL ordering table before placing flight-lot orders.
Compliance Information
Space-flight ceramic-packaged FPGA; compliance declarations are per-program and must be requested from Microchip for the specific screening and version code. Not applicable to AEC-Q100 automotive qualification.
