RTAX4000SL-LG1272B - 4M Gate Rad-Tolerant FPGA, 1.5V LGA | Microchip
部品番号: RTAX4000SL-LG1272B ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $12000 | $12,000.00 |
| 10 | $11400 | $114,000.00 |
| 100 | $10800 | $1,080,000.00 |
| 500 | $10200 | $5,100,000.00 |
| 1,000 | $9600 | $9,600,000.00 |
RTAX4000SL-LG1272B 概要
A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the total ionizing dose (TID) and single-event effects (SEE) encountered in orbital and deep-space environments. Within the power-management-free programmable logic hierarchy, the RTAX-SL family sits in the space-flight class of SRAM-based antifuse-free programmable logic devices, positioned above commercial FPGAs and below fully radiation-hardened (rad-hard) devices, offering an optimal cost/reliability point for LEO and GEO missions.
Key features include 4M system gates across 40320 cells, embedded SRAM blocks with built-in FIFO control logic, segmentable clock resources, chip-wide highway routing, and carry logic for arithmetic chains. The device is live-at-power-up, requiring no external configuration device - a decisive advantage for single-chip space payloads where boot reliability is mission-critical.
Technically, the RTAX-SL architecture is derived from Microsemi/Microchip commercial Accelerator devices, combining a fine-grained logic fabric with dedicated embedded memory modules. The 0.15 um metal-to-metal antifuse-based process supports a supply range of 1.425V to 1.575V; the -1 speed grade variant specifies a maximum combinatorial delay of 0.99 ns per logic cell. Design entry is supported by Microchip Libero SoC with the RTAX-S/SL macro libraries.
Typical applications include satellite payload data processing, on-board telemetry and telecommand (TMTC) controllers, spacecraft bus avionics, and radiation-tolerant glueless interfaces to sensor arrays. The 1272-pin LGA package provides the high I/O count needed for wide parallel data paths in imaging and communications payloads.
A key design consideration: RTAX-SL devices are one-time programmable (antifuse), so prototyping must use the footprint-compatible RTAX4000SL-1LG1272PROTO adapter methodology or the companion Axcelerator family before flight-lot programming.
This page synthesizes distributor pricing intelligence, same-family drop-in alternatives, and practical space-design notes not found in the manufacturer datasheet.
ドロップイン代替品: RTAX4000SL-LG1272B — 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: RTAX4000SL-LG1272B （同一形状・フットプリント） — 相違点: Configuration, Package, Family, Logic Cells, Clocking.
クイック比較ツール — 並列比較する代替部品を選択:
RTAX4000SL-1LG1272B
✅ ドロップイン✓ 在庫あり
$9200 / 個
データシートを見る →RTAX4000SL-1LG1272PROTO
✅ 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 →RTAX4000SL-LG1272PROTO
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
RTAX4000S-1LG1272B
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
RTAX4000SL-1LG1272
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
RTAX4000SL-LG1272B 最大定格＆電気的特性
| Family | RTAX-SL Radiation-Tolerant FPGA |
| Equivalent System Gates | 4,000,000 |
| Logic Cells | 40320 |
| Process Technology | 0.15 um CMOS |
| Core Supply Voltage | 1.5 V nominal (1.425 V to 1.575 V) |
| パッケージ | 1272-Pin LGA |
| 実装タイプ | Surface Mount |
| Packaging | Box |
| Programmability | One-Time Programmable (antifuse) |
| Configuration | Live-at-power-up, single chip |
| Embedded Memory | Embedded SRAM with FIFO control logic |
| Clocking | Segmentable clocks, chip-wide highway routing |
| Radiation Tolerance | Radiation-tolerant (space-flight class) |
RTAX4000SL-LG1272B 1272-pin lga ピン配置ガイド
RTAX4000SL-LG1272B (1272-pin lga 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: RTAX4000SL-LG1272B.
詳細は データシート をご参照ください。
主な用途
RTAX4000SL-LG1272B の用途: 6 件s: Satellite Payload Data Processing, Spacecraft Bus Avionics, On-Board Telemetry and Telecommand, Instrumentation and Sensor Interface Electronics, Launch Vehicle and Avionics Control Electronics, Deep-Space and GEO Communication Payloads.
Satellite Payload Data Processing
The RTAX4000SL-LG1272B fits satellite payload processing where 4M system gates and 40320 logic cells implement image compression, CCSDS framing, and wide parallel bus interfaces in a single chip. Its live-at-power-up antifuse operation removes external configuration flash - a radiation-upset weak point - so the payload logic is functional the instant power is applied after eclipse exit. The 1272-pin LGA package supplies the terminal count for wide 32- and 64-bit data paths to imaging sensors and mass memories. Implemented between a sensor front-end and a downlink formatter, the fabric's embedded SRAM with built-in FIFO control buffers rate-mismatch streams without external memory, reducing board-level parts count and mission risk in LEO and GEO payloads.
おすすめ
Spacecraft Bus Avionics
Spacecraft on-board computers and TMTC controllers use the RTAX4000SL-LG1272B to glue together MIL-STD-1553, SpaceWire, and UART peripherals around a rad-tolerant processor, exploiting the 1.5V core (1.425V-1.575V range) for low bus power. Radiation tolerance at the 0.15 um process node sustains total-ionizing-dose budgets typical of multi-year LEO missions, while segmentable clocks let designers isolate the time-critical 1553 scheduler clock domain from lower-speed housekeeping logic. Because the antifuse fabric is one-time programmable, bus designers lock flight firmware at qualification, eliminating in-orbit configuration-upset risk. The chip-wide highway routing resources keep long inter-domain buses deterministic in timing, simplifying worst-case timing sign-off for avionics certification.
おすすめ
On-Board Telemetry and Telecommand
TMTC modules benefit from the RTAX4000SL-LG1272B's deterministic, single-chip implementation of frame sync, Reed-Solomon and convolutional framing, and command decoders. With 4M gates there is headroom to instantiate redundant decoder channels within one device, supporting majority-voted architectures without extra FPGA packages on the power budget. Live-at-power-up behavior guarantees the receiver chain decodes commands immediately after a power cycle initiated by the flight software watchdog - a scenario commercial SRAM FPGAs handle poorly because of reconfiguration latency. Embedded FIFO blocks decouple the 1.5V core logic from slower front-end processors, and the 1272-terminal LGA offers enough I/O to bond out redundant interfaces for cross-strapping between the primary and redundant TMTC chains.
おすすめ
Instrumentation and Sensor Interface Electronics
Science instruments - spectrometers, star trackers, and radiation monitors - use the RTAX4000SL-LG1272B for front-end sequencer and ADC interfacing logic. The carry-logic fabric implements high-speed accumulation and co-adding chains, while embedded SRAM banks hold calibration tables adjacent to the datapath. The 0.15 um antifuse process exhibits low static power, valuable when instruments are duty-cycled under tight solar-array budgets, and the single-chip form factor reduces board area inside thermally constrained optical benches. Designers typically pair the device with space-grade ADCs and use the LG1272's generous I/O to run parallel CMOS or LVDS-style links; the deterministic fabric timing (sub-nanosecond per-cell delays on the -1 grade) simplifies fixed-latency trigger alignment across multiple sensor channels.
おすすめ
Launch Vehicle and Avionics Control Electronics
Launch-vehicle flight control and sequencing electronics adopt the RTAX4000SL-LG1272B because mission durations are short but radiation and vibration environments are severe; the ceramic LGA package withstands mechanical stress better than plastic BGA alternatives. The 4M-gate fabric hosts redundant control laws, majority-voting on safety-critical signals, and discrete hot-standby channels within one package, cutting system mass. Live-at-power-up logic is essential on vehicles where power application coincides with the start of the flight sequence - there is no configuration boot window. Designers implement the sequencer on the footprint-compatible PROTO device first, then port the EDIF netlist and pinout to flight LG1272 units using Microchip's documented migration converter flow.
おすすめ
Deep-Space and GEO Communication Payloads
Communications transponders for GEO and deep-space missions map encoders, scramblers, and multiplexers into the RTAX4000SL-LG1272B's 40320-cell fabric. Radiation tolerance over long mission profiles at the 0.15 um node supports TID budgets of multi-year GEO service, while single-chip operation shrinks the failure surface versus multi-FPGA chains. The embedded SRAM/FIFO resources handle constant-bit-rate adaptation between baseband processors and modulators, and the 1272-pin LGA terminates the wide parallel baseband buses and multiple redundant RF-chain control interfaces. Operating from a 1.5V rail (1.425V-1.575V), the device keeps core power low - important on transponders where DC budgets are dominated by TWTAs - and the deterministic antifuse timing simplifies fixed-latency frame alignment across the transmit chain.
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: RTAX4000SL-LG1272B — 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 | RTAX4000SL-1LG1272B | RTAX4000SL-1LG1272PROTO | RTAX4000SL-LG1272PROTO |
|---|---|---|---|---|
| Package | 1272-Pin LGA | 1272-Pin LGA - same | 1272-Pin LGA (PROTO) - same footprint | 1272-Pin LGA (PROTO) - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Equivalent System Gates | 4,000,000 | 4,000,000 | 4,000,000 | 4,000,000 |
| Logic Cells | 40320 | 40320 | 40320 (60480 logic cells) | 40320 |
| Speed Grade | Standard | -1 (faster, 0.99 ns max combinatorial delay) | -1 | Standard |
| Core Supply Voltage | 1.5 V (1.425 V - 1.575 V) | 1.5 V (1.425 V - 1.575 V) | 1.5 V | 1.5 V |
| Process Technology | 0.15 um CMOS | 0.15 um CMOS | 0.15 um CMOS | 0.15 um CMOS |
| Intended Use | Flight unit | Flight unit (higher timing margin) | Prototyping / development | Prototyping / development |
主な差別化要因
- Live-at-power-up single-chip operation （vs Commercial SRAM FPGAs (e.g., Xilinx Virtex class))
- Higher timing margin option without respin （vs RTAX4000SL-LG1272B (standard grade, this part))
- Dedicated flight vs prototyping split （vs RTAX4000SL-1LG1272PROTO)
設計ノート
RTAX-SL devices are one-time programmable (antifuse). Each RTAX4000SL-LG1272B flight unit accepts exactly one programming pass, so never use flight silicon for functional debug. Per the Microchip datasheet methodology, implement and verify the design on a footprint-compatible adapter board with the PROTO variant, then use the EDIF netlist and pinout converter to migrate to the flight LG1272 device. Budget at least one spare flight unit per board for program loss or handling damage.
Design the core rail for 1.5V nominal with a 1.425V-1.575V tolerance window per the Microchip USA RTAX4000SL description. Since antifuse fabric draws mostly static current, size the core regulator for worst-case static plus I/O dynamic current rather than assuming commercial-FPGA-style switching profiles. Verify I/O bank supply (VCCI) options and any power-up sequencing requirements in the RTAX-S/SL datasheet (ds2169) before releasing the power tree.
The 1272-pin LGA ceramic package requires a precision land pattern and careful coplanarity management; follow the package drawing in the Microchip datasheet exactly and avoid via-in-pad under terminals unless filled and capped. Radiated-emission and single-event-latchup hardening practice for space boards: place bulk and 0.1 uF decoupling at each VCCI bank, and keep the 1.5V core plane solid under the package to minimize rail droop during simultaneous switching on the wide parallel buses.
コンプライアンス情報
Space-grade ceramic-package programmatic part; environmental compliance data was not present in the retrieved web data. Export control (ITAR/EAR) restrictions typically apply to radiation-tolerant flight parts - verify with the franchised distributor.
