RTAX4000SL-1LG1272PROTO - 4M-Gate Rad-Tolerant FPGA | Microchip
MPN: RTAX4000SL-1LG1272PROTO ✓ نشطRTAX4000SL-1LG1272PROTO نظرة عامة
A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the heavy-ion and proton environments encountered in Earth-orbiting and deep-space missions. Within the power-management hierarchy of spacecraft avionics, the RTAX-S/SL family sits at the payload-processing level, and RTAX4000SL is the largest member, derived from the commercial Microsemi Axcelerator architecture. Unlike SRAM-based FPGAs, its antifuse technology is one-time programmable and live-at-power-up, eliminating configuration PROMs and their associated SEU configuration-upset failure modes.
Key features include a true single-chip form factor, low-power CMOS operation suited to constrained spacecraft power budgets, embedded SRAM blocks with built-in FIFO control logic, and segmentable chip-wide clock resources. The 1272-terminal package provides high I/O density for payload interfaces, and the SL speed grade supports high-throughput data paths in flight hardware.
Architecturally, the device leverages the proven Axcelerator fabric with AX macros and VersaTiles, allowing designers to target the equivalent commercial Axcelerator device during development using the AC170 prototyping flow, then migrate directly to the rad-tolerant RTAX4000SL for flight with minimal design change. This dramatically shortens development cycles for space programs.
Typical applications include satellite payload data processing, spacecraft on-board computing and telemetry formatting, remote-sensing instrument control and image acquisition chains, and radiation-environment industrial or defense systems requiring SEU-resistant logic.
When designing with this device, plan the I/O banking and power distribution early, since the 1272-terminal package is intended for board reflows and inspection flows typical of space assembly; also confirm SEU mitigation strategies such as triple-module redundancy at the RTL level, as antifuse fabric protects configuration but not user flip-flops.
This page synthesizes distributor pricing and stock visibility, drop-in alternatives, prototyping-flow guidance, and design notes not found in the manufacturer datasheet, providing consolidated engineering and sourcing value in one reference.
بدائل مباشرة لـ RTAX4000SL-1LG1272PROTO — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع RTAX4000SL-1LG1272PROTO (نفس عامل الشكل والبصمة) — يختلف في Package, Configuration, Family, Radiation Tolerance, Core Supply Voltage.
RTAX4000SL-LG1272V
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←RTAX4000SL-CG1272B
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←RTAX4000SL-1CG1272PROTO
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
RTAX4000SL-1LG1272B
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←RTAX4000SL-1LG1272PROTO الحدود القصوى والخصائص الكهربائية
| Family | RTAX-S/SL Radiation-Tolerant FPGAs |
| Logic Blocks (CLBs) | 40,320 |
| Equivalent System Gates | 4,000,000 |
| Logic Cells | 60,480 |
| Technology | CMOS, antifuse (one-time programmable) |
| العلبة | 1272-terminal column grid array (LG1272) |
| Terminal Pitch | 1.000 mm |
| Speed Grade | -1 (SL) |
| Qualification Flow | PROTO (prototype flow) |
| Configuration | Live at power-up, no external configuration device |
| Embedded Memory | Embedded SRAM with built-in FIFO control logic |
| Clocking | Segmentable chip-wide clocks |
| Application Domain | Space-flight systems |
| نوع التركيب | Surface Mount |
دليل تكوين أطراف RTAX4000SL-1LG1272PROTO 1272-terminal column grid array (lg1272)
تكوين الأطراف لـ RTAX4000SL-1LG1272PROTO (حزمة 1272-terminal column grid array (lg1272)). تتضمن هذه الدائرة المتكاملة الرقمية GPIO وواجهات الاتصال (UART وSPI وI2C) وأطراف الطاقة. راجع ورقة بيانات الشركة المصنعة لوظائف الأطراف البديلة وخيارات التكوين. ضرورية لتصميم الأنظمة المدمجة وتخطيط PCB.
لا تتوفر بيانات مفصلة لمخطط التوصيلات لـ RTAX4000SL-1LG1272PROTO.
راجع ورقة البيانات للحصول على تكوين الأطراف الكامل.
التطبيقات النموذجية
RTAX4000SL-1LG1272PROTO مناسب لـ 6 التطبيقs: Satellite Payload Data Processing, Spacecraft On-Board Computing, Remote-Sensing Instrument Control, Telemetry, Tracking and Command (TT&C), Radiation-Environment Defense and Aerospace Systems, FPGA Prototyping and Design Validation.
Satellite Payload Data Processing
The RTAX4000SL-1LG1272PROTO fits satellite payload processing because its 60,480 logic cells and 4,000,000 equivalent gates provide enough fabric for real-time framing, compression, and channelization of high-rate sensor data, while the antifuse configuration is live at power-up - eliminating the boot-time and configuration-SEU exposure of SRAM FPGAs. In a typical payload chain, the device sits between the sensor front end and the downlink formatter, using embedded SRAM blocks with built-in FIFO control logic to buffer data across clock domains, and segmentable chip-wide clocks to serve independent processing slices. The 1272-terminal package at 1.000 mm pitch supports the wide parallel I/O of imaging and RF payloads, and the low-power CMOS process keeps the payload power budget within typical small-sat allocations.
موصى به
Spacecraft On-Board Computing
For on-board computer (OBC) glue logic, bus interfaces, and memory controllers, the RTAX4000SL-1LG1272PROTO offers single-chip integration that removes external configuration PROMs - a reliability benefit because the antifuse fabric cannot suffer configuration upsets in orbit. Its 40,320 CLBs implement MIL-STD-1553-style interfaces, SpaceWire endpoints, error-correcting memory controllers, and watchdog/reconfiguration state machines alongside the main data path. The PROTO flow allows the OBC team to validate firmware-hardware interaction on representative silicon early in the program, then migrate to RTAX4000SL-LG1272V flight units with identical die and footprint. Live-at-power-up operation guarantees that safety logic is active from the first instant of spacecraft power, which is a stated family advantage for space designers.
موصى به
Remote-Sensing Instrument Control
Imaging instruments and hyperspectral sensors require deterministic timing, high-I/O-count detector interfaces, and low-noise digital logic - all strengths of the RTAX4000SL-1LG1272PROTO. The 1.000 mm-pitch 1272-terminal package terminates large CCD/CMOS detector arrays with hundreds of parallel channels, while the -1 SL speed grade supports the sample-rate data paths without excessive dynamic power. Designers implement detector sequencing, correlated double sampling timing, and packetization in the 60,480 logic cells, using embedded SRAM FIFOs to decouple the sensor clock domain from the payload formatter. Using the AC170 prototyping methodology, the detector interface can first be exercised on commercial Axcelerator hardware, then ported to this PROTO unit for flight-representative validation with the actual detector electronics.
موصى به
Telemetry, Tracking and Command (TT&C)
TT&C subsystems demand the highest reliability tier of the spacecraft, and the RTAX4000SL-1LG1272PROTO is well suited during their development phase. The antifuse fabric eliminates single-event configuration upsets, while users apply RTL-level triple-module redundancy to protect state in the 40,320-CLB array. Typical TT&C implementations in this device include command decoders, PCM frame generators, encryption/decryption interfaces, and cross-strapped redundant-channel muxes - the high logic capacity lets both prime and redundant chains share one device family with identical tooling. Segmentable clocks allow the secure command path to run on an independent clock tree from telemetry formatting. After PROTO-phase validation, the identical footprint RTAX4000SL-LG1272V flight unit drops onto the same PCB.
موصى به
Radiation-Environment Defense and Aerospace Systems
Beyond civil space, the RTAX4000SL-1LG1272PROTO serves defense and high-altitude aerospace programs that encounter radiation environments, including strategic electronics and high-altitude platforms. The same properties valued in orbit apply: one-time-programmable antifuse configuration cannot be flipped by a heavy-ion strike, the CMOS process limits static power during long dwell missions, and the 4,000,000-gate capacity hosts complex signal processing such as radar front-end formatting and secure communications encoders. Microchip's UG0019 DLA Cross Reference Guide shows the RTAX-S family is qualified per MIL-PRF-38535 class Q and class V under DLA drawing numbers, giving defense procurement a documented quality path from PROTO evaluation units to fully qualified flight lots.
موصى به
FPGA Prototyping and Design Validation
The PROTO suffix is itself an application: the RTAX4000SL-1LG1272PROTO exists to let space teams validate RTL, timing, I/O behavior, and board-level signal integrity on flight-representative silicon before committing to flight-flow inventory. The recommended flow per Microchip application note AC170 is three-stage: develop on the commercial Axcelerator equivalent device with low cost and fast turnaround, then map the design onto this PROTO unit using extender boards that match the commercial package to the RTAX-S footprint, and finally move to the RTAX4000SL-LG1272V flight unit on the same PCB. Because the die, 1272-terminal package, and pinout are identical across the flows, no PCB respin or timing recharacterization of the board is required between stages.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ RTAX4000SL-1LG1272PROTO — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | RTAX4000SL-LG1272V | RTAX4000SL-CG1272B | RTAX4000SL-1CG1272PROTO |
|---|---|---|---|---|
| Package | 1272-terminal CGA (LG1272), 1.000 mm pitch | 1272-terminal CGA (LG1272) - same | 1272-terminal CGA (CG1272) - same footprint | 1272-terminal CGA (CG1272) - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Logic Blocks (CLBs) | 40,320 | 40,320 | 40,320 | 40,320 |
| Equivalent System Gates | 4,000,000 | 4,000,000 | 4,000,000 | 4,000,000 |
| Logic Cells | 60,480 | 60,480 | 60,480 | 60,480 |
| Qualification Flow | PROTO (prototype) | Flight (V) | Flight (B) | PROTO (prototype) |
| Configuration Technology | Antifuse, live at power-up | Antifuse, live at power-up | Antifuse, live at power-up | Antifuse, live at power-up |
| Terminal Pitch | 1.000 mm | 1.000 mm | 1.000 mm | 1.000 mm |
أبرز الفروقات
- PROTO flow reduces cost and lead time for early-phase validation (مقابلRTAX4000SL-LG1272V)
- Largest RTAX-S/SL density on a single chip (مقابلRTAX2000SL-1CG1152V)
- Antifuse configuration is immune to configuration SEU (مقابلSRAM-based space FPGAs)
ملاحظات التصميم
Remember that the PROTO flow devices carry reduced screening compared to flight (V/B suffix) units - never fly a PROTO part. Plan your procurement early: flight RTAX4000SL units have long lead times, and validating on PROTO silicon is the accepted mitigation. When substituting between LG and CG terminal styles (e.g., RTAX4000SL-1CG1272PROTO), confirm the land pattern specification for each terminal type, as column grid array and ceramic grid array terminals may require different pad geometries and inspection criteria in your assembly process.
With 1,272 terminals at 1.000 mm pitch, simultaneous switching noise is the dominant signal-integrity risk. Group high-toggle-rate I/O banks away from sensitive analog/reference inputs, and assign ample power/ground terminal pairs per Microchip's package pinout tables. For payload interfaces clocked at the -1 SL speed grade limits, perform IBIS-based simulations using Microchip-supplied IBIS models for the LG1272 package, and terminate single-ended lines per flight heritage practices for column grid array assemblies.
Use the AC170 three-stage prototyping strategy to de-risk the program: develop RTL against the commercial Axcelerator equivalent, validate on this RTAX4000SL-1LG1272PROTO, then migrate to RTAX4000SL-LG1272V on the same PCB. Because the die and footprint are identical across flows, design the board once with flight constraints in mind - include fiducials and test access for column grid array X-ray inspection, and reserve SEU mitigation resources (TMR on critical flops, watchdog logic) in the RTL even during PROTO-phase development so the flight migration is a tool-flow change only.
معلومات الامتثال
Space-grade PROTO device; compliance status not stated in provided data. RTAX-S family is qualified per MIL-PRF-38535 class Q and class V under DLA drawing numbers per Microchip UG0019 for flight-flow units; verify PROTO-unit compliance documentation with Microchip.
