RTAX250S-CQ208V - 250K Gate Rad-Tolerant FPGA CQFP-208 | Microchip
부품 번호: RTAX250S-CQ208V ✓ 활성| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
RTAX250S-CQ208V 개요
A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the total ionizing dose (TID) and single-event effects found in space-flight orbits. Within the power hierarchy of space electronics, RTAX-S sits between commercial FPGAs (unsuitable for orbit) and full rad-hard ASICs: it inherits an ASIC-like anti-fuse fabric for SEU-immune configuration while remaining programmable, making it the workhorse programmable logic device for satellites and planetary probes.
Key features include anti-fuse one-time-programmable (OTP) configuration that is live-at-power-up with no external boot ROM or configuration flash, low static power consumption on a 1.5V core, and a true single-chip form factor that eliminates the radiation-exposed configuration memory device required by SRAM FPGAs. The 649 MHz internal performance supports high-throughput data paths such as spaceborne DSP and telemetry encoding.
Architecturally, the RTAX250S uses the Axcelerator-derived fabric: cluster logic modules (vsModules) combining C-cells and R-cells, plus embedded SRAM/banked FIFO blocks, enabling registered high-speed pipelines. The metal-layer programmable anti-fuse interconnect is inherently immune to configuration upset, an advantage over SRAM-based space FPGAs.
Typical applications include satellite payload data processing, spacecraft command and telemetry (C&DH) systems, GNSS/radio front-end glue logic, and instrument control on orbital and deep-space platforms.
Design consideration: use the Microchip Libero SoC flow and prototype on the commercial AX250S device per application note AC170 before committing to the OTP anti-fuse - errors cannot be reprogrammed.
This page synthesizes distributor listings, drop-in same-footprint alternatives, and practical design notes not found in the manufacturer datasheet.
드롭인 대체품: RTAX250S-CQ208V — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: RTAX250S-CQ208V (동일 폼 팩터 및 풋프린트) — 차이점: Family, Package, Radiation Tolerance, Core Supply Voltage, Speed Grade.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
RTAX250SL-CQ208V
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$1 / 개
데이터시트 보기 →RTAX250S-1CQ208V
✅ 드롭인 ⚠️ 사양 미검증✓ 재고 있음
$1320 / 개
데이터시트 보기 →RTAX250S-CQ208PROTO
✅ 드롭인✓ 재고 있음
가격 문의
데이터시트 보기 →RTAX250SL-1CQ208PROTO
✅ 드롭인✓ 재고 있음
가격 문의
데이터시트 보기 →RTAX250S-CQ208PROTO
✅ 드롭인✓ 재고 있음
가격 문의
데이터시트 보기 →RTAX250S-CQ208V 최대 정격 & 전기적 특성
| Family | RTAX-S Radiation-Tolerant FPGA |
| System Gates | 250,000 |
| ASIC Gate Equivalent | 30,000 |
| Logic Cells | 2,816 |
| Maximum Frequency | 649 MHz |
| Process Technology | 0.15 um CMOS |
| Core Supply Voltage | 1.5 V |
| 패키지 | 208-Pin CQFP (Ceramic Quad Flat Pack) |
| Package Qualification Suffix | V (space-level screening) |
| Configuration Technology | Anti-fuse OTP |
| Live at Power-Up | Yes |
| Radiation Tolerance | Radiation-tolerant (space-flight qualified family) |
| 실장 유형 | Surface Mount |
| RoHS 상태 | unknown |
RTAX250S-CQ208V v (space-level screening) 핀 구성 가이드
RTAX250S-CQ208V(v (space-level screening) 패키지)의 핀 구성입니다. 이 디지털 IC에는 GPIO, 통신 인터페이스(UART, SPI, I2C), 전원 핀이 포함되어 있습니다. 대체 핀 기능과 구성 옵션은 제조사 데이터시트를 참조하십시오. 임베디드 시스템 설계와 PCB 레이아웃에 필수적입니다.
다음에 대한 상세 핀아웃 데이터 없음: RTAX250S-CQ208V.
다음을 참조하십시오: 데이터시트 전체 핀 구성은 다음을 참조하십시오.
일반적인 애플리케이션
RTAX250S-CQ208V 적합 용도: 6 애플리케이션s: Satellite Payload Data Processing, Spacecraft Command and Data Handling (C&DH), Instrument Control and Glue Logic on Orbital Platforms, Telemetry Encoding and Downlink Formatting, GNSS / Radio Front-End Logic for Spacecraft, Deep-Space Probe FPGA Reuse and Upgrade Path.
Satellite Payload Data Processing
The RTAX250S-CQ208V fits satellite payload data processing because its 250,000 gates, 2,816 logic cells, and 649 MHz maximum toggle rate support the pipelined DSP paths used for image compression, filtering, and on-board encryption, while the anti-fuse fabric keeps the configuration immune to single-event upsets. In a typical payload chain the FPGA sits between the sensor or ADC front end and the downlink formatter, implemented as registered vsModule pipelines with banked SRAM/FIFO blocks for buffering. Unlike an SRAM FPGA, it needs no radiation-exposed configuration memory and is live at power-up, simplifying the spacecraft power-on sequence. The trade-off is OTP configuration: use the AC170 prototyping flow on AX250S fabric to fully verify the design before flight-lot programming.
추천
Spacecraft Command and Data Handling (C&DH)
For command and data handling, the RTAX250S-CQ208V is attractive because live-at-power-up operation means the spacecraft bus logic is functional the instant power is applied, with no boot delay or external boot device that could be damaged by radiation. Its 250K gates accommodate CCSDS telemetry/telecommand framing, watchdog and housekeeping logic, and memory-controller glue logic around rad-tolerant SRAM. The 1.5V core keeps static power low for eclipse-period energy budgets. Designers typically implement the C&DH state machines in the anti-fuse fabric for SEU-immune sequencing and add TMR/scrubbing in RTL for critical registers. The V-screened CQFP-208 package supports the hermetic, flight-qualified assembly flows required by C&DH boards.
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Instrument Control and Glue Logic on Orbital Platforms
Spaceborne science instruments need deterministic control logic that survives total ionizing dose over mission life, and the RTAX250S-CQ208V provides this with its rad-tolerant 0.15um CMOS fabric in a hermetic ceramic CQFP-208 package. Typical roles include instrument sequencer, ADC/DAC interface timing, motor/filter-wheel control, and bus bridging to a MIL-STD-1553 or SpaceWire companion device. The anti-fuse interconnect introduces deterministic timing with no configuration-upset downtime, important for instruments that cannot tolerate reconfiguration pauses during observations. With 250K gates there is headroom to integrate both control and pre-processing, reducing part count. Prototype the interface logic on the pin-compatible AX250S-CQ208 before committing the one-time-programmable flight device.
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Telemetry Encoding and Downlink Formatting
The 649 MHz internal performance of the RTAX250S-CQ208V makes it well suited to telemetry encoding and downlink formatting, where convolutional/LDPC-style encoding stages and parallel framing logic must sustain high serial throughputs from a 1.5V, low-static-power fabric. In the transmission chain the FPGA typically receives parallel science data from the payload, applies channel encoding, CCSDS framing, and pseudo-randomization, then drives the modulator interface. Anti-fuse configuration keeps the encoder behavior fixed and upset-immune during ground-contact passes where link interruption recovery matters. Banked SRAM blocks implement FIFO elasticity between the payload clock domain and the downlink clock domain, and the AC170 prototyping flow on AX fabric de-risks the timing closure before OTP programming.
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GNSS / Radio Front-End Logic for Spacecraft
Radiation-tolerant GNSS receivers and radio front ends need glue logic that digitizes correlator outputs, timestamps pulses, and interfaces to the spacecraft time base, all in a SEU-robust fabric. The RTAX250S-CQ208V serves this role with 2,816 logic cells and 649 MHz capability, implementing correlator accumulators, pulse-per-second conditioning, and microsecond-accurate time-tag registers on the anti-fuse fabric whose routing cannot be corrupted by upsets. Its single-chip form factor eliminates the configuration-memory component that would otherwise sit adjacent to the sensitive RF/digital boundary. The 1.5V core supports power-limited LEO platforms, and the hermetic CQFP-208 suits the thermal-vacuum and vibration environments of launch. Verify clock-domain logic on the AX250S-CQ208 prototype first.
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Deep-Space Probe FPGA Reuse and Upgrade Path
Deep-space programs value a family roadmap: designs captured for RTAX250S-CQ208V can migrate upward within RTAX-S to higher-density packages such as RTAX4000S or RTAX4000SL parts when payload requirements grow, preserving the proven anti-fuse design methodology, Libero toolchain, and qualification data packages. The RTAX250S capacity of 250K gates covers seed-money demos, engineering models, and lower-complexity probes, while the same RTL scales into 4000S-class devices for flagship missions. The OTP anti-fuse fabric is particularly valued for multi-year cruise phases where configuration memory upset recovery is unacceptable. Using the AC170 AX250S prototyping approach plus Aldec ACT-H600-CQ208 hardware, teams validate designs against CQFP-208 timing before committing flight parts.
추천
추천 제품 요약
엔지니어링 참조 데이터: RTAX250S-CQ208V — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | RTAX250SL-CQ208V | RTAX250S-1CQ208V | RTAX250S-CQ208PROTO | RTAX250SL-1CQ208PROTO | AX250S-CQ208 |
|---|---|---|---|---|---|---|
| Package | CQFP-208 (ceramic, V screening) | CQFP-208 - same | CQFP-208 - same | CQFP-208 - same | CQFP-208 - same | CQFP-208 - same |
| Brand | Actel / Microsemi (Microchip Technology) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology (Actel Axcelerator) |
| System Gates | 250,000 | 250,000 | 250,000 | 250,000 | 250,000 | 250,000 |
| Logic Cells | 2,816 | 2,816 | 2,816 | 2,816 | 2,816 | 2,816 |
| Radiation Tolerance | Yes (RTAX-S rad-tolerant, V screening) | Yes | Yes | Yes (prototyping packaging) | Yes (prototyping packaging) | No (commercial Axcelerator) |
| Speed Grade | Standard | Standard | -1 (faster) | Standard | -1 (faster) | Standard (commercial) |
| Intended Use | Flight (space) | Flight (space, low power) | Flight (space, high speed) | Prototyping / EM builds | Prototyping / EM builds | Design validation only (AC170 flow) |
주요 차별점
- Lowest static power in the same CQFP-208 footprint (vs RTAX250S-CQ208V (S line baseline))
- Higher timing margin with -1 speed grade (vs RTAX250S-CQ208V (standard speed))
- Radiation tolerance absent in the prototype device (vs AX250S-CQ208)
설계 노트
RTAX-S anti-fuse configuration is one-time-programmable: a logic error on a programmed flight device is unrecoverable. The industry-standard mitigation is Microchip application note AC170 (Prototyping RTAX-S Using Axcelerator Devices), which targets the same RTL at the commercial AX250S-CQ208 device and uses extender boards mapping the commercial package to the RTAX-S CQFP-208 footprint (Aldec ACT-H600-CQ208 supports RTAX250S-CQ208). Complete timing closure, simulation, and hardware validation on the reprogrammable AX device before burning the flight part.
The 1.5V core supply of RTAX250S-CQ208V delivers the family's low static power, but I/O banking voltage and I/O current must be budgeted separately per the RTAX-S/SL datasheet (rtaxs_ds2169_v18.pdf). If power is the binding constraint, the RTAX250SL-CQ208V drop-in in the same CQFP-208 footprint lowers static consumption further; evaluate SL early in design because RTL migration between S and SL is straightforward while board rework after layout is costly. Estimated: for space designs, derate supply rails per the power budget analysis in the datasheet rather than typical commercial margins.
The CQFP-208 ceramic package has peripheral leads and relatively high loop inductance compared with ball-grid alternatives; for the 649 MHz-class internal pipelines, keep high-fanout clock domains on dedicated clock resources and use registered outputs with series termination on fast I/O. Assign spare ground pins adjacent to switching I/O banks in the pin planner, since anti-fuse devices are programmed once and I/O assignments cannot be changed later. Cross-check final I/O timing with Libero back-annotation before flight-lot programming.
규정 준수 정보
Space-grade ceramic CQFP device; hermetic military/space qualification flows may include leaded finishes or exemptions. Compliance not stated in verified data - confirm via Microchip product page or flight documentation package.
