RTAX250S-1CQ352V - 250K-Gate Rad-Tolerant FPGA | Microchip
料号： RTAX250S-1CQ352V ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1850 | $1,850.00 |
| 10 | $1720 | $17,200.00 |
| 100 | $1590 | $159,000.00 |
| 500 | $1480 | $740,000.00 |
| 1,000 | $1395 | $1,395,000.00 |
RTAX250S-1CQ352V 概述
A radiation-tolerant FPGA is a programmable logic device designed to survive the heavy-ion and proton radiation environments encountered in low-Earth-orbit and deep-space missions. Within the power hierarchy, the RTAX250S-1CQ352V sits in the space-grade FPGA category, derived from Actel's Axcelerator commercial FPGA architecture and positioned above commercial-grade and industrial-grade programmable logic in environmental robustness. The RTAX-S family is Microchip's flagship antifuse-based radiation-tolerant FPGA line for satellite payloads, launch vehicles, and planetary probes.
Key features include 250,000 equivalent system gates plus 30,000 ASIC gates for embedded functions, single-chip live-at-power-up operation enabled by antifuse interconnect that requires no configuration device, and low power consumption compared with SRAM-based space FPGAs. The core operates from a nominal 1.5V supply with a 1.425V to 1.475V to 1.575V allowable range, and the -1 speed grade provides timing suitable for moderate-frequency spacecraft logic.
Architecturally, the RTAX250S uses Axcelerator-class logic modules with efficient carry chains, embedded SRAM blocks, and abundant routing resources, allowing designers to implement spacecraft data processing, telemetry, and control logic in one device. The CQ352 hermetic ceramic package protects the die against thermal cycling and moisture ingress during launch and orbit.
Typical applications include satellite on-board data handling, payload control and sequencing, instrument interfacing, and bus avionics for LEO, MEO, and GEO missions.
Design consideration: the antifuse device is one-time programmable, so full functional verification using Microchip application note AC170 (prototyping RTAX-S on commercial Axcelerator devices) is strongly recommended before committing flight units.
This page synthesizes verified distributor data, drop-in alternatives, and design guidance not consolidated in the manufacturer datasheet.
直接替换替代料： RTAX250S-1CQ352V ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： RTAX250S-1CQ352V （相同外形与封装尺寸） ——差异在于 Package, Family, Process Technology, Logic Cells, Equivalent System Gates.
快速对比工具——选择替代料号进行并排对比：
RTAX250S-1CQ352EV
✅ 直接替换📋 参考替代料（不在目录中）
RTAX250SL-CQ352V
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →RTAX2000S-1CQ352V
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →RTAX1000SL-CQ352V
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →RTAX4000SL-CQ352EV
✅ 直接替换✓ 有现货
$10250 / 个
查看数据手册 →RTAX250S-1CQ352V 最大额定值与电气特性
| Manufacturer | Microchip Technology (Microsemi/Actel) |
| Family | RTAX-S Radiation-Tolerant FPGAs |
| Equivalent Gate Count | 250,000 gates |
| Logic Cells | 4,224 |
| CLBs | 2,816 |
| Additional ASIC Gates | 30,000 |
| Core Supply Voltage (Nominal) | 1.5 V |
| Core Supply Voltage Range | 1.425 V to 1.575 V |
| Process Technology | CMOS |
| Speed Grade | -1 |
| 封装 | CQ352 (352-pin ceramic column quad flat package) |
| Programming Technology | Antifuse, one-time programmable, live at power-up |
| Target Environment | Radiation-tolerant, spaceflight |
| 安装类型 | Surface Mount |
| Configuration | Single-chip, no external configuration device required |
RTAX250S-1CQ352V cq352 (352-pin ceramic column quad flat package) 引脚配置指南
RTAX250S-1CQ352V（cq352 (352-pin ceramic column quad flat package) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： RTAX250S-1CQ352V.
请参阅 数据手册 以查看完整引脚配置。
典型应用
RTAX250S-1CQ352V 适用于 6 应用s: Satellite On-Board Data Handling, Payload Control and Sequencing, Instrument Data Acquisition and Preprocessing, Spacecraft Bus Avionics, Launch Vehicle and Reentry Electronics, Deep-Space and Planetary Probe Electronics.
Satellite On-Board Data Handling
The RTAX250S-1CQ352V fits spacecraft on-board data handling (OBDH) units where 250,000 gates and 4,224 logic cells implement telemetry formatting, command decoding, memory controllers, and spacecraft-mode sequencers in a single device. Its antifuse, live-at-power-up architecture means logic is operational the instant spacecraft power is applied - essential for launch-vehicle separation events and safe-mode entry where no configuration boot delay is tolerable. The 1.5V nominal core supply keeps dynamic power low on limited solar-array and battery budgets, and the hermetic CQ352 ceramic package withstands the thermal cycling of LEO eclipses. Designers typically interface the FPGA to rad-tolerant memories and spacecraft buses, using the 30,000 ASIC gates for embedded FIFO and dual-port SRAM functions that offload glue logic.
推荐
Payload Control and Sequencing
Payload controllers benefit from the RTAX250S-1CQ352V's combination of 250,000 equivalent gates and deterministic, single-chip startup. Payload sequencing logic - instrument power-up trees, safe/arm interlocks, and mode state machines - must be live before ground contact, which the antifuse architecture guarantees without any external configuration memory. The -1 speed grade provides adequate timing for sequencing clocks of tens of MHz while minimizing switching power, and the 1.425V to 1.575V supply window tolerates spacecraft point-of-load regulator drift. The 352-pin CQ352 ceramic package gives ample user I/O for interfacing instrument front-ends, and prototypes can be verified on commercial Axcelerator devices per Microchip application note AC170 before committing flight-lot antifuse units.
推荐
Instrument Data Acquisition and Preprocessing
Scientific instruments on satellites and probes use the RTAX250S-1CQ352V to implement ADC interface glue logic, data framing, FIFO buffering, and DSP pre-processing pipelines. The 2,816 CLBs and embedded SRAM blocks handle line-scan or frame-based data streams, while the 30,000 ASIC gates provide dedicated memory functions that conserve logic cells. Low dynamic power at the 1.5V core helps meet instrument thermal budgets in tightly packaged optical benches. Because data paths benefit from the Axcelerator-derived carry chains and routing fabric, timing closure at moderate clock rates is straightforward with Microchip Designer tooling. The hermetic CQ352 package supports the stringent outgassing and moisture-resistance requirements of instruments operating in vacuum over multi-year missions.
推荐
Spacecraft Bus Avionics
Bus avionics modules - reaction-wheel controllers, sun-sensor and star-tracker interfaces, and power-distribution supervision - use the RTAX250S-1CQ352V where a rad-tolerant, single-chip FPGA must survive the natural space radiation environment for mission duration. The RTAX-S family is Microchip's choice for space designers because it combines radiation tolerance with the reliability of antifuse interconnect, which cannot suffer radiation-induced configuration upsets the way SRAM fabrics can. The 250K-gate capacity consolidates multiple discrete glue-logic functions into one device, reducing part count and board area on the avionics card. Live-at-power-up operation supports autonomous fault recovery, and the CQ352 ceramic package meets standard spacecraft assembly and screening flows.
推荐
Launch Vehicle and Reentry Electronics
Launch vehicles and reentry systems specify the RTAX250S-1CQ352V for flight-control logic, telemetry encoders, and ordnance sequencing where the electronic unit experiences extreme vibration, shock, and short mission durations with zero-failure requirements. The hermetic ceramic CQ352 package resists the mechanical stress of launch, and the antifuse configuration cannot corrupt under the radiation and single-event environments of ascent and space. With 250,000 gates, designers implement redundant voting logic, built-in test, and dual-string control channels within one device, supporting fault-tolerant architectures. The device's live-at-power-up behavior ensures sequencing logic is active from power application at the pad, and QML Class V-related flows available in the RTAX family support mission assurance documentation.
推荐
Deep-Space and Planetary Probe Electronics
Planetary probes and deep-space spacecraft operate for years in high-radiation regimes far beyond LEO, making the RTAX250S-1CQ352V's radiation-tolerant antifuse fabric attractive for command and data handling, instrument control, and communication framing functions. The 1.5V core keeps total power low - a dominant constraint when solar flux is weak at outer planets - and the single-chip configuration removes the boot dependencies that complicate fault recovery after cruise-phase power cycles. The 250K-gate capacity supports protocol engines and image-data compression pre-processing. Mission designers typically prototype on commercial Axcelerator parts per AC170, then program flight-lot RTAX250S dies in CQ352 hermetic packages for integration into probe electronics suites.
推荐
推荐产品汇总
工程参考数据： RTAX250S-1CQ352V ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | RTAX250S-1CQ352EV | RTAX250SL-CQ352V | RTAX2000S-1CQ352V | RTAX1000SL-CQ352V | RTAX4000SL-CQ352EV |
|---|---|---|---|---|---|---|
| Package | CQ352 (352-pin ceramic) | CQ352 - same | CQ352 - same | CQ352 - same | CQ352 - same | CQ352 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Equivalent Gates | 250,000 | 250,000 | 250,000 (SL variant) | ~200,000 | ~100,000 | ~400,000 |
| Core Voltage | 1.5 V nominal (1.425-1.575 V) | 1.5 V nominal | 1.5 V nominal | 1.5 V nominal | 1.5 V nominal | 1.5 V nominal |
| Qualification Flow Suffix | V | E | V | V | V | E |
关键差异点
- True single-chip, live-at-power-up operation （对比 RTAX2000S-1CQ352V)
- Largest capacity in the CQ352-compatible family （对比 RTAX1000SL-CQ352V)
- Trade-off: no reprogrammability versus SRAM space FPGAs （对比 RTAX250S-1CQ352EV)
设计说明
The RTAX250S-1CQ352V is one-time programmable antifuse silicon - there is no reconfiguration path after programming. Follow Microchip application note AC170 and compile the flight design into a commercial Axcelerator device (e.g., AX250) or use an RTAX-S/SL PROTO device for full functional and timing verification before submitting flight-lot dies for programming. Errors discovered after antifuse programming cannot be patched and typically cost an entire die lot. Maintain rigorous source-control of the programming bitstream.
The core supply must be held within 1.425V to 1.575V at 1.5V nominal. Spacecraft point-of-load converters should be selected with tight load-line regulation across radiation-degraded lifetime operation. Estimated: at this capacity class, core dynamic current scales with switching activity; characterize with Microchip Designer power estimator using your utilization vectors before sizing the core rail. Add local 0.1uF ceramic decoupling per power pin group plus bulk capacitance at the board entry, and account for inrush when the live-at-power-up fabric initializes.
The CQ352 ceramic column package requires a 352-pad footprint matched to the column-grid land pattern specified in the RTAX-S/SL datasheet. Use symmetric pad geometry to avoid tombstoning during reflow of the heavy ceramic body, and inspect solder columns with X-ray after assembly since hidden joints are common under CQFP bodies. Route high-speed I/O on inner layers with adjacent ground references to control crosstalk across the dense 352-pin perimeter, and provide ESD protection on interfaces exposed during ground handling and integration.
合规信息
Space-grade ceramic package; compliance declarations are typically program-specific. Qualification references Mil Prf 38535 / QML Class Q and V per the Microchip DLA Cross Reference Guide; consult Microchip for formal RoHS/REACH statements on this military/space part.
