RTAX250S-CQ208PROTO - Rad-Tolerant FPGA 250kG CQ208 | Microchip
部品番号: RTAX250S-CQ208PROTO ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
RTAX250S-CQ208PROTO 概要
A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the total ionizing dose (TID) and single-event effects found in spaceflight radiation environments. Within the semiconductor hierarchy, the RTAX250S-CQ208PROTO sits in the radiation-tolerant FPGA category, descended from the commercial Axcelerator family and positioned above standard commercial FPGAs in reliability for orbital missions.
Key features include the PROTO designation, which means this unit is intended for prototyping hardware flights before committing to flight-grade silicon. The CQ208 ceramic package enables footprint-compatible migration using the Aldec ACT-H600-CQ208 adaptor, which supports RTAX250S-CQ208, RTAX250SL-CQ208, AX250S-CQ208, and AX250SL-CQ208 devices. Built-in FIFO control logic on embedded SRAM, segmentable clocks, and chip-wide highway routing add system-level flexibility.
The RTAX-S/SL architecture is based on the proven Axcelerator CMOS fabric, with embedded SRAM blocks, high-performance routing, and antifuse one-time-programmable configuration delivering true single-chip form factor and live-at-power-up operation without external configuration devices. Per Microchip application note AC170, prototyping is performed using Microsemi Libero SoC software, which converts the RTAX-S/SL design to a compatible Axcelerator device and package; the reverse flow is not permitted, so pin assignment, place-and-route, timing verification, and simulation must be done on the RTAX-S/SL device itself.
Typical applications include satellite payload logic, spacecraft bus control, orbital instrument interfaces, and launch vehicle avionics, where radiation tolerance, low power, and single-chip reliability are decisive. Designers typically prototype with this PROTO unit and the Axcelerator companion before ordering flight RTAX250S silicon.
A key design consideration: verify timing and pinout in Libero SoC against the RTAX250S-CQ208 target, because the Axcelerator prototype conversion is one-directional.
This page synthesizes verified distributor listings, the official Microchip RTAX-S/SL datasheet (ds2169), and the Aldec adaptor compatibility matrix, providing drop-in alternative guidance and prototyping-flow design notes not consolidated on the manufacturer product page.
ドロップイン代替品: RTAX250S-CQ208PROTO — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: RTAX250S-CQ208PROTO （同一形状・フットプリント） — 相違点: Family, Package, Core Supply Voltage, Logic Cells, Process Technology.
クイック比較ツール — 並列比較する代替部品を選択:
RTAX250S-1CQ208PROTO
✅ ドロップイン📋 参考代替品（カタログ未掲載）
RTAX250SL-1CQ208PROTO
✅ ドロップイン✓ 在庫あり
価格はお問い合わせください
データシートを見る →RTAX250SL-CQ208
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AX250S-CQ208
✅ ドロップイン📋 参考代替品（カタログ未掲載）
AX250SL-CQ208
✅ ドロップイン📋 参考代替品（カタログ未掲載）
RTAX250S-CQ208PROTO 最大定格＆電気的特性
| Family | RTAX-S/SL Radiation-Tolerant FPGAs |
| Equivalent System Gates | 250,000 gates |
| ASIC Gates (module) | 30,000 gates |
| CLBs | 2816 |
| Logic Cells | 4224 |
| Core Supply Voltage | 1.425 V to 1.575 V (1.5 V nominal) |
| Process Technology | CMOS |
| Configuration Technology | Antifuse (one-time programmable) |
| パッケージ | CQ208 (208-pin ceramic) |
| Radiation Tolerance | Radiation-tolerant (space-flight grade family) |
| Embedded Memory | Embedded SRAM with built-in FIFO control logic |
| Clocking | Segmentable clocks, chip-wide highway routing |
| Configuration State | Live at power-up, single-chip form factor |
| Prototyping Flow | Libero SoC conversion to Axcelerator device (AC170) |
| Supported Prototyping Adaptor | Aldec ACT-H600-CQ208 |
| Speed Grade | Standard (non -1) per ordering code |
RTAX250S-CQ208PROTO cq208 (208-pin ceramic) ピン配置ガイド
RTAX250S-CQ208PROTO (cq208 (208-pin ceramic) パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: RTAX250S-CQ208PROTO.
詳細は データシート をご参照ください。
主な用途
RTAX250S-CQ208PROTO の用途: 6 件s: Satellite Payload Data Processing, Spacecraft Bus Control, Orbital Instrument Interfaces, Launch Vehicle Avionics, New Space LEO Constellations, Space Heritage Upgrades and Obsolescence Redesign.
Satellite Payload Data Processing
The RTAX250S-CQ208PROTO fits satellite payload processing because its 250,000 equivalent gates, 2,816 CLBs, and antifuse live-at-power-up configuration deliver deterministic logic that requires no external configuration device in orbit. Designers prototype the payload algorithm on this PROTO unit with the Aldec ACT-H600-CQ208 flash-based adaptor, converting the Libero SoC design to an Axcelerator flow per application note AC170, then order flight RTAX250S silicon on the identical CQ208 footprint. The embedded SRAM with built-in FIFO control handles telemetry buffering, while segmentable clocks manage multiple payload clock domains. The trade-off is one-time programmability: any logic change after flight-lot commitment requires new silicon, so full simulation and timing closure on the RTAX250S target is mandatory.
おすすめ
Spacecraft Bus Control
Spacecraft bus controllers benefit from the RTAX250S-CQ208PROTO's single-chip form factor and 1.5V nominal CMOS core, which Microchip identifies as delivering the low-power consumption critical for power-limited spacecraft. In this role the FPGA implements OBC glue logic, housekeeping interfaces, and watchdog functions. The PROTO unit allows the bus-control design to be exercised on an adaptor board through the documented Libero SoC conversion flow before flight-lot purchase. With 4,224 logic cells and chip-wide highway routing, the device integrates multiple legacy interface blocks into one ceramic-packaged component, reducing board area and solder joints - both reliability drivers in launch environments. Timing verification must be completed on the RTAX-S device itself because the reverse prototyping flow is not permitted.
おすすめ
Orbital Instrument Interfaces
Scientific instruments aboard orbital platforms use the RTAX250S-CQ208PROTO to prototype detector interface logic where antifuse immunity to configuration upsets matters more than reprogrammability. The 250,000-gate capacity accommodates ADC framing, CCD clock sequencing, and downlink formatting simultaneously, while the 1.425V-to-1.575V core tolerance suits tightly regulated spacecraft power rails. Prototyping on this PROTO device with the ACT-H600-CQ208 adaptor lets instrument teams iterate HDL on reprogrammable flash silicon, then freeze the netlist for flight RTAX250S units. The 208-pin ceramic CQ208 package supports hermetic sealing required by many instrument assemblies. Design teams should budget the one-directional conversion constraint into their schedule, since place-and-route and simulation must conclude on the RTAX target before conversion.
おすすめ
Launch Vehicle Avionics
Launch avionics demand logic that is live at power-up with zero configuration latency - exactly what the RTAX250S-CQ208PROTO's antifuse technology provides, and why Microchip markets RTAX-S as the FPGA of choice for space-flight systems. Flight-control and telemetry acquisition blocks, sized within 2,816 CLBs, are prototyped on this unit and qualified against the RTAX-S timing model using Libero SoC before flight silicon is ordered on the same CQ208 footprint. Segmentable clocks support redundant, cross-strapped clock domains common in launch architectures. Because avionics programs face strict schedule gates, engineers should submit PROTO and flight-unit orders together; Octopart lists only one distributor source as of 2026-09-02, so long lead times should be anticipated for both prototype and flight hardware.
おすすめ
New Space LEO Constellations
LEO constellation developers use the RTAX250S-CQ208PROTO during the design phase of radiation-tolerant avionics that will ultimately fly RTAX250S silicon on high-volume satellite buses. The PROTO device on an Aldec ACT-H600-CQ208 adaptor provides a reprogrammable, flash-based development vehicle while preserving pinout fidelity to the flight CQ208 footprint, so PCB layouts migrate directly to flight hardware. The 1.5V core and CMOS process keep orbital power budgets predictable, and the antifuse configuration eliminates the SEU-prone external configuration memories used by SRAM FPGAs. Constellation teams should note the trade-off: prototyping requires completing pin assignment, place-and-route, and simulation on the RTAX-S design, which lengthens iteration cycles compared to fully reprogrammable flows but guarantees flight-netlist fidelity.
おすすめ
Space Heritage Upgrades and Obsolescence Redesign
Programs migrating legacy spaceflight boards from older rad-hard PLDs to a modern FPGA fabric adopt the RTAX250S-CQ208PROTO to prototype replacement logic before committing to flight RTAX250S devices. The 250,000-gate, 4,224-logic-cell capacity plus 30,000 ASIC module gates absorbs legacy glue logic, bus interfaces, and sequencers that previously occupied multiple components. The documented Microchip-Aldec prototyping solution - a flash-based ProASIC3E adaptor programmed through Libero SoC netlist conversion - replicates the OTP behavior of the final antifuse part during validation. Because the CQ208 ceramic package suits existing hermetic board designs, footprint-compatible migration shortens qualification. Teams should re-verify timing in Libero SoC on the RTAX250S model, as the commercial Axcelerator conversion is a development aid, not a flight qualification path.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: RTAX250S-CQ208PROTO — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | RTAX250S-1CQ208PROTO | RTAX250SL-1CQ208PROTO | AX250S-CQ208 | ||
|---|---|---|---|---|---|---|
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | ||
| Package | CQ208 (208-pin ceramic) | CQ208 - same | CQ208 - same | CQ208 - same | CQ208 - same | CQ208 - same |
| Equivalent System Gates | 250,000 | 250,000 | 250,000 | 250,000 | 250,000 | 250,000 |
| CLBs / Logic Cells | 2816 / 4224 | 2816 / 4224 | 2816 / 4224 | 2816 / 4224 | 2816 / 4224 | 2816 / 4224 |
| Speed Grade | Standard | -1 (faster) | -1 (faster) | Standard | Standard | Standard |
| Radiation Tolerance | Yes (RTAX-S rad-tolerant) | Yes | Yes | Yes | No (commercial) | No (commercial) |
| Core Supply Voltage | 1.425 V to 1.575 V (1.5 V nominal) | 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 | 1.425 V to 1.575 V |
| Configuration Technology | Antifuse OTP (live at power-up) | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP |
| Typical Use | Spaceflight design prototyping | High-speed spaceflight prototyping | Low-power spaceflight prototyping | SL flight design | Commercial logic design | Low-power commercial design |
主な差別化要因
- Radiation-tolerant antifuse fabric with live-at-power-up operation （vs AX250S-CQ208)
- Faster -1 speed grade available in the same footprint （vs RTAX250S-1CQ208PROTO)
- Lower-power SL process option on the same footprint （vs RTAX250SL-1CQ208PROTO)
設計ノート
The prototyping flow is strictly one-directional: per Microchip application note AC170, Libero SoC converts the RTAX-S/SL design to a compatible Axcelerator device and package, and the reverse flow is not permitted. All pin assignment, place-and-route, timing verification, and simulation must be completed using the RTAX250S-CQ208 target device before conversion. Never validate timing on the Axcelerator model and assume it holds for the RTAX part.
The core supply must remain within 1.425V to 1.575V around the 1.5V nominal rail. Spacecraft power distributions with transients should use local point-of-load regulation with adequate bulk capacitance at the CQ208 power pins. Follow the Microchip RTAX-S/SL datasheet (ds2169) power-supply sequencing and decoupling guidance; antifuse devices draw configuration current only once at the factory, so runtime power is purely logic-activity dependent.
Design the PCB land pattern directly against the flight RTAX250S-CQ208 footprint so prototype and flight units mount identically. When using the Aldec ACT-H600-CQ208 reprogrammable adaptor, allocate board space or a mechandised socket strategy for the adaptor, and confirm the supported device list: RTAX250S-CQ208, RTAX250SL-CQ208, AX250S-CQ208, and AX250SL-CQ208 are documented as compatible on this adaptor.
Assign I/O with the final RTAX250S-CQ208 pinout constraints from the start, even during bench bring-up on the adaptor. Because the antifuse device is one-time programmable, any pin relocation discovered late in prototyping forces a new place-and-route run and potentially new flight silicon. Reserve spare CQ208 I/O for test points and future interface growth in the initial constraint file.
コンプライアンス情報
Compliance data was not stated in retrieved distributor listings. Ceramic aerospace packaging may be subject to RoHS exemptions; consult official Microchip environmental documentation for RTAX250S before program qualification.
