RTAX250SL-LG624B - 250K Gate Rad-Tolerant FPGA | Microchip
MPN: RTAX250SL-LG624B ✓ Hoạt độngRTAX250SL-LG624B Tóm tắt
A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the ionizing radiation environments of space flight and high-altitude missions. Within the programmable logic hierarchy - FPGA -> programmable logic device -> semiconductor - the RTAX-SL family occupies the space-grade tier, using antifuse-based one-time-programmable fabric that is inherently configuration-secure and live at power-up, eliminating the external boot flash required by SRAM FPGAs.
Key differentiating features include a 649 MHz maximum system clock, 0.930 ns typical combinatorial CLB delay on the -1 speed grade, single-chip live-at-power-up operation, and low static power consumption enabled by the antifuse architecture. The 624-ball LGA package provides high I/O density for bus interfaces, memory controllers, and payload data paths on satellite boards.
Technically, the RTAX250SL implements its 2816 CLBs in a sea-of-modules fabric built from combinational and sequential cells on a 0.15 um process. Design entry uses Libero SoC (Microchip/Microsemi toolchain), and the migration methodology to the RTAX-S space-flight equivalents uses a footprint-compatible adaptor board with an EDIF netlist and pinout converter for prototyping, per the manufacturer datasheet.
Typical applications include satellite payload processing, spacecraft bus controllers, telemetry and command interfaces, and orbital instrument data acquisition - anywhere SEU-hardened, TID-tolerant logic is mandatory.
Design consideration: because this is a one-time-programmable antifuse device, verify the complete netlist and pin assignments before programming; RTAX-SL prototypes should be validated on ProASIC3/axcelerator-compatible flow using the manufacturer-recommended prototyping path.
This page synthesizes distributor data, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet alone. Pricing references are as of 2026-09-02; many grades are quote-based due to space-program procurement.
Bộ thay thế dễ dàng lắp đặt cho RTAX250SL-LG624B — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với RTAX250SL-LG624B (cùng hình factor và footprint) — khác nhau ở Package, Radiation Tolerance, Family, Process Technology, Equivalent System Gates.
RTAX250SL-1LG624B
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →RTAX250SL-LG624V
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →RTAX250SL-1LG624V
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →RTAX250SL-1CG624B
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Xem tài liệu →RTAX250SL-LG624B Tỷ lệ tối đa & tính chất điện
| Logic Family | RTAX-SL Radiation-Tolerant FPGA |
| Equivalent Gates | 250,000 |
| CLBs | 2816 |
| Logic Cells | 4224 |
| Tần số xung maksimum | 649 MHz |
| Process Technology | 0.15 um CMOS |
| Core Supply Voltage | 1.5 V |
| Hộp | 624-pin LGA |
| Programming Technology | Antifuse (one-time programmable) |
| Power-Up Behavior | Live at power-up |
| Radiation Tolerance | Radiation-tolerant (space flight use) |
| Kiểu lắp đặt | Surface Mount |
Hướng dẫn cấu hình chân RTAX250SL-LG624B 624-pin lga
Cấu hình chân cho RTAX250SL-LG624B (624-pin lga gói). IC số này bao gồm chân GPIO, giao diện truyền thông (UART, SPI, I2C) và chân nguồn. Tham khảo tài liệu thông số kỹ thuật của nhà sản xuất để biết các chức năng chân thay thế và tùy chọn cấu hình. Cực kỳ quan trọng cho thiết kế hệ thống tích hợp và lập trình PCB.
Không có dữ liệu chân cụ thể sẵn có cho RTAX250SL-LG624B.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
RTAX250SL-LG624B phù hợp cho 6 Áp dụngs: Satellite Payload Processing, Spacecraft Bus Control, Telemetry and Command Interfaces, Orbital Instrument Data Acquisition, Launch Vehicle Avionics, Deep-Space Mission Electronics.
Satellite Payload Processing
The RTAX250SL-LG624B fits satellite payload data processing because its radiation-tolerant antifuse fabric withstands total ionizing dose and single-event effects in orbit, while 250K gates and 2,816 CLBs provide enough fabric for format framing, compression pre-processing, and bus bridging. Its 649 MHz maximum clock supports high-throughput serial and parallel data paths, and the 624-pin LGA gives dense I/O for memory and payload interfaces. Placed between payload sensors and downlink chain, it is live at power-up with no configuration device, eliminating boot-time failure modes in orbit; the trade-off is one-time programming, so netlist sign-off is required before flight-lot programming.
Được đề xuất
Spacecraft Bus Control
For spacecraft on-board computer and bus controller logic, the RTAX250SL-LG624B provides deterministic glue logic, housekeeping interfaces, and redundancy/voting circuits in a single chip. The 1.5 V core on a 0.15 um CMOS process keeps static power low - a key constraint on solar- and battery-powered buses - and the antifuse fabric cannot lose its configuration under heavy-ion strikes, unlike SRAM FPGAs that require external configuration scrubbing. Engineers implement Mil-Std-1553-style or custom bus interfaces across the 624-pin LGA I/O. Note that board power estimates must use the Libero SoC power calculator, since quiescent and dynamic currents are design-dependent.
Được đề xuất
Telemetry and Command Interfaces
Telecommand decoders and telemetry encoders demand logic that is operational from the instant of power-up; the RTAX250SL-LG624B is live at power-up by architecture, requiring no configuration memory, which directly improves command-link availability during launch and eclipse phases. Its 4,224 logic cells comfortably host frame synchronizers, CRC engines, and time-tagging counters, and the 649 MHz fabric ceiling far exceeds typical TM/TC bit rates, leaving ample timing margin. The 624-ball LGA supports redundant interface routing for cold-spare sparing common in TT&C designs. Design teams typically prototype the RTL on ProASIC3 devices before committing to the flight-lot RTAX device.
Được đề xuất
Orbital Instrument Data Acquisition
Science instruments on orbital platforms generate high-rate data that must be acquired, timestamped, and packetized in a radiation environment. The RTAX250SL-LG624B accommodates acquisition state machines, FIFO control, and detector interface logic within its 2816 CLBs, with the 624-pin LGA offering the pin count for multi-channel detector front-ends. The rad-tolerant qualification of the RTAX-SL family addresses the TID environment over multi-year missions, which commercial FPGAs cannot guarantee. Because acquisition latency depends on the clock plan, the -1 speed grade variant (RTAX250SL-1LG624B, 0.930 ns combinatorial delay) is recommended when detector clocking approaches the upper fabric limits.
Được đề xuất
Launch Vehicle Avionics
Launch avionics experience intense vibration plus transient radiation from trapped belts during ascent; the RTAX250SL-LG624B's single-chip antifuse architecture provides configuration immunity with no external flash to mechanically or electrically fail, a common reliability lever in flight computers. The FPGA implements flight-event sequencers, redundancy management, and sensor aggregation across the dense 624-pin LGA I/O, and 1.5 V core operation limits dynamic power within constrained avionics power budgets. One-time programming enforces configuration control, aligning with launch-vehicle configuration management practices. Timing margins must be re-verified against temperature extremes in Libero SoC static timing analysis.
Được đề xuất
Deep-Space Mission Electronics
Deep-space probes face galactic cosmic-ray flux far beyond LEO levels, making configuration-upset-immune logic essential. The RTAX250SL-LG624B's antifuse configuration cannot be flipped by single events, so no scrubber or configuration memory is flown - reducing parts count and failure modes on missions where repair is impossible. Its 250K-gate capacity hosts instrument control, autonomy kernels, and link-layer logic, while the 0.15 um process with 1.5 V core balances performance and total ionizing dose endurance per the RTAX-S/SL datasheet. Program managers should plan flight-lot quantities early, since space-grade lead times are long and allocation-constrained.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho RTAX250SL-LG624B — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | RTAX250SL-1LG624B | RTAX250SL-LG624V | RTAX250SL-1LG624V | RTAX250SL-1CG624B |
|---|---|---|---|---|---|
| Package | 624-pin LGA | 624-pin LGA - same | 624-pin LGA - same | 624-pin LGA - same | 624-pin CGA (ceramic) |
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Equivalent Gates | 250,000 | 250,000 | 250,000 | 250,000 | 250,000 |
| CLBs / Logic Cells | 2816 / 4224 | 2816 / 4224 | 2816 / 4224 | 2816 / 4224 | 2816 / 4224 |
| Core Supply Voltage | 1.5 V | 1.5 V | 1.5 V | 1.5 V | 1.5 V |
| Radiation Tolerance | Yes (RTAX-SL rad-tolerant) | Yes | Yes | Yes | Yes |
| Speed Grade | Standard | -1 (fast) | Standard (V-grade) | -1 (V-grade) | -1 (fast) |
Bảo phân biệt quan trọng
- Standard speed grade cost advantage (vsRTAX250SL-1LG624B)
- Single-chip live-at-power-up operation (vsSRAM-based commercial FPGAs (e.g., A3PE3000))
- High I/O density in one package (vsRTAX250SL-1CG624B)
Ghi chú thiết kế
RTAX-SL devices are antifuse one-time-programmable: there is no erase or rework after programming. Complete static timing analysis, simulation, and pin sign-off in the Libero SoC toolchain before submitting the fuse file to the programming house. Per the Microchip datasheet, use the footprint-compatible adaptor board with an EDIF netlist and pinout converter (application note 'Prototyping for RTAX-S and RTAX-SL Devices') to prototype on ProASIC3-family silicon before committing flight lots.
The core runs at 1.5 V on a 0.15 um CMOS process, but I/O banks use separate supply rails. Estimated: because dynamic power is design-dependent, generate your power estimate in the Libero SoC power tool using your actual netlist toggle rates rather than family averages. Provide clean decoupling (bulk plus 0.1 uF per bank) and follow the datasheet power-up sequencing requirements so the live-at-power-up fabric never sees out-of-range rail slew during launch power events.
The 624-ball LGA lands require tight solder-paste and reflow control because balls are hidden under the body - use X-ray or endoscopic inspection on flight hardware. Recommended: fan out high-speed and clock I/O to inner layers with controlled impedance, and reserve adjacent balls for ground return to minimize loop area on payload data interfaces. Verify land pattern against the Microchip package drawing in the RTAX-S/SL datasheet before PCB fab release.
Thông tin tuân thủ
Space-grade qualification is governed by the RTAX-SL program flow rather than AEC-Q100. RoHS/REACH status not stated in retrieved distributor data; verify per orderable code on the Microchip product page.
