RTAX4000S-1CQ352V - 4M-Gate Rad-Tolerant FPGA | Microchip
料号： RTAX4000S-1CQ352V ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
RTAX4000S-1CQ352V 概述
A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the ionizing radiation environment of space, including total ionizing dose (TID) and single-event effects (SEE), where commercial FPGAs would fail or accumulate configuration errors. Within the power hierarchy of space electronics, it sits at the digital payload level, below radiation-hardened ASICs in cost but above COTS devices in reliability, making it the workhorse programmable logic device for spaceflight systems.
Key features include the largest density of the RTAX-S family at 4 million system gates, live-at-power-up operation enabled by antifuse one-time-programmable (OTP) configuration technology, a true single-chip form factor that eliminates external configuration memory, and embedded SRAM blocks with built-in FIFO control logic for on-chip buffering.
Architecturally, the RTAX4000S is based on the commercial Axcelerator family fabric, providing segmentable clocks, chip-wide highway routing, and high-performance interconnect. The antifuse fabric is immune to configuration upset from single-event latchup in the configuration store, a decisive advantage over SRAM-based FPGAs in orbit.
Typical applications include satellite payload data processing, spacecraft bus control and telemetry, image processing for Earth-observation instruments, and communications transponder logic in LEO, MEO, and GEO missions.
A key design consideration is that antifuse devices are one-time programmable: prototype on the equivalent commercial Axcelerator device using the documented Microchip prototyping flow before committing hardware.
This page synthesizes distributor sourcing data, drop-in family alternatives, and practical space-design notes not consolidated in the manufacturer datasheet. Pricing and availability are quoted-on-request due to the space-grade nature of this device, as of 2026-09-01.
直接替换替代料： RTAX4000S-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： RTAX4000S-1CQ352V （相同外形与封装尺寸） ——差异在于 Package, Family, Radiation Tolerance, Configuration, Logic Cells.
快速对比工具——选择替代料号进行并排对比：
RTAX4000S-1CQ352EV
✅ 直接替换📋 参考替代料（不在目录中）
RTAX4000SL-CQ352E
✅ 直接替换✓ 有现货
$2620 / 个
查看数据手册 →RTAX4000SL-CQ352E
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2620 / 个
查看数据手册 →RTAX4000S-CQ352
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
RTAX4000SL-1CQ352
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
RTAX4000S-1CQ352V 最大额定值与电气特性
| Equivalent System Gates | 4,000,000 gates |
| Logic Cells | 60,480 |
| Combinational Logic Blocks (CLBs) | 40,320 |
| User I/Os | 166 |
| Configuration Technology | Antifuse (OTP), live at power-up |
| Radiation Tolerance | Radiation-tolerant (RTAX-S family, space-flight grade) |
| Family | RTAX-S/SL and RTAX-DSP |
| Embedded Memory | Embedded SRAM with built-in FIFO control logic |
| Speed Grade | -1 |
| 封装 | CQ352 (352-pin ceramic quad flat package) |
| 安装类型 | Surface Mount |
| Operating Temperature Min | -55 C |
| Operating Temperature Max | +125 C |
| Process Technology | CMOS |
| Clocking | Segmentable clocks, chip-wide highway routing |
| Typical Applications | Space-flight systems, satellites |
RTAX4000S-1CQ352V cq352 (352-pin ceramic quad flat package) 引脚配置指南
RTAX4000S-1CQ352V（cq352 (352-pin ceramic 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： RTAX4000S-1CQ352V.
请参阅 数据手册 以查看完整引脚配置。
典型应用
RTAX4000S-1CQ352V 适用于 6 应用s: Satellite Payload Data Processing, Spacecraft Bus Control and Telemetry, Earth-Observation Image Processing, Communications Transponder Logic, Launch Vehicle and Avionics Digital Logic, Instrument Control and Data Acquisition.
Satellite Payload Data Processing
The RTAX4000S-1CQ352V fits payload data processing because its 4,000,000 equivalent system gates and 60,480 logic cells provide the largest RTAX-S family density, enough for framing, compression pre-processing, and packetization of high-rate instrument data. The 166 user I/Os and embedded SRAM blocks with built-in FIFO control logic support wide data-path interfaces and on-chip buffering without external memory. Placed between the payload sensor chain and the downlink formatter, the antifuse fabric is live at power-up with no boot delay, eliminating a cold-start failure mode in orbit, while its radiation-tolerant qualification addresses total ionizing dose and single-event effects over the mission lifetime.
推荐
Spacecraft Bus Control and Telemetry
For spacecraft bus control, the RTAX4000S-1CQ352V implements command decoders, telemetry encoders, mode state machines, and watchdog logic with deterministic timing. Its live-at-power-up antifuse configuration means the bus controller FPGA is functional the instant solar-array power arrives, with no configuration memory to corrupt under single-event upset - a decisive advantage over SRAM FPGAs in this safety-critical role. The -55C to +125C operating range covers eclipse-to-sunlit thermal swings on unheated bus boards, and the ceramic CQ352 package withstands launch vibration and thermal cycling. Segmentable clocks allow independent timing domains for the RTU, telemetry FIFO, and safety logic on one chip.
推荐
Earth-Observation Image Processing
Imaging payloads for Earth observation benefit directly from the RTAX4000S-1CQ352V's 40,320 CLBs, which implement correlation, dark-level correction, defect mapping, and CCSDS-compliant data formatting pipelines at sensor line rates. Embedded SRAM with FIFO control logic buffers line data between the image sensor front end and the compression stage without external SRAM parts that would add board area and radiation-sensitive devices. The chip-wide highway routing sustains the wide parallel buses typical of CCD/CMOS sensor interfaces, and the 166 user I/Os support multi-bank sensor connectivity. Radiation tolerance protects mission-critical image chains from single-event functional interrupts during high-radiation passes.
推荐
Communications Transponder Logic
In satellite communications transponders, the RTAX4000S-1CQ352V implements framing/deframing, scramblers, forward-error-correction interfacing, and baseband glue logic. The high-performance Axcelerator-derived fabric delivers the routing speed needed for wide parallel baseband data paths, while segmentable clocks isolate the transmit and receive chains to minimize clock-domain crossings. Because transponders operate continuously for the mission life, the antifuse fabric's immunity to configuration upset and the -55C to +125C temperature range are essential reliability features. The single-chip form factor also removes external configuration PROMs from the RF-adjacent board, reducing both area and failure points near sensitive circuitry.
推荐
Launch Vehicle and Avionics Digital Logic
Launch-vehicle avionics require logic that is guaranteed functional at power application and stable under severe vibration and thermal stress - exactly the profile of the RTAX4000S-1CQ352V. The ceramic CQ352 package with surface-mount attachment withstands launch loads, and the -55C to +125C range accommodates unconditioned avionics bays. The FPGA implements flight-event sequencing, redundancy voting, and discrete I/O handling across its 166 user I/Os. Its radiation-tolerant design also covers high-altitude radiation exposure for suborbital trajectories. Designers typically verify the logic on the commercial Axcelerator equivalent via Microchip's documented prototyping flow before committing one-time-programmable flight parts.
推荐
Instrument Control and Data Acquisition
Science instruments - spectrometers, particle detectors, and star trackers - use the RTAX4000S-1CQ352V as the central acquisition controller, timestamping events, histogramming detector hits, and streaming science data over the spacecraft bus. The 4M-gate fabric accommodates deep counters and on-chip SRAM FIFOs, while live-at-power-up antifuse configuration guarantees acquisition readiness at instrument turn-on, critical for short-duration observation windows. Radiation tolerance prevents data corruption from single-event effects during high-fluence segments of the orbit. The segmentable clock structure lets each instrument sub-function - detector timing, buffer control, bus interface - run on independent, well-controlled clock domains on the same ceramic-packaged chip.
推荐
推荐产品汇总
工程参考数据： RTAX4000S-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 | RTAX4000S-1CQ352EV | RTAX4000SL-CQ352E | RTAX4000S-CQ352 | RTAX4000SL-1CQ352 |
|---|---|---|---|---|---|
| Package | CQ352 (352-pin ceramic QFP) | CQ352 - same | CQ352 - same | CQ352 - same | CQ352 - same |
| Brand | Microchip Technology (Actel/Microsemi) | Microsemi / Microchip Technology | Microchip Technology (Actel) | Microchip Technology (Actel) | Microchip Technology (Actel) |
| Equivalent System Gates | 4,000,000 | 4,000,000 | 4,000,000 (SL variant) | 4,000,000 | 4,000,000 (SL variant) |
| Logic Cells | 60,480 | 60,480 | 60,480 | 60,480 | 60,480 |
| Configuration Technology | Antifuse OTP, live at power-up | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP |
| Screening / Order Suffix | V (flight, extended temp) | EV (evaluation/engineering) | E (SL family, extended) | Standard (non-extended) | SL, -1 speed grade, standard |
关键差异点
- Largest RTAX-S density in the CQ352 footprint （对比 RTAX4000SL-CQ352E)
- Flight screening suffix V vs EV （对比 RTAX4000S-1CQ352EV)
- Antifuse OTP live-at-power-up configuration （对比 Commercial Axcelerator SRAM FPGAs)
设计说明
RTAX-S devices use antifuse one-time-programmable technology - a programmed flight part cannot be reworked. Microchip's documented prototyping flow lets you target the equivalent commercial Axcelerator device first, using Extender circuit boards that map the commercial package onto the RTAX-S package footprint. Complete full timing simulation and hardware verification on the commercial device before programming any RTAX4000S-1CQ352V flight unit, and order one spare die per program milestone.
Plan power rails according to the RTAX-S/SL datasheet banking and core supply requirements before layout; space power budgets are tight and the 4M-gate fabric draws more current than lower-density family members. Estimate core current from your actual utilization of the 60,480 logic cells rather than worst-case full-fabric figures, and verify startup inrush against the live-at-power-up behavior of the antifuse fabric, which needs no configuration current draw.
The ceramic CQ352 package is a 352-lead ceramic QFP intended for surface-mount attachment; confirm your assembly house supports ceramic-package soldering profiles and lead-coplanarity inspection, which are common trip points for boards built with space-grade ceramic QFPs. Provide generous thermal relief and support the package corners mechanically, since ceramic packages are heavier than plastic QFPs and more sensitive to board flex during launch vibration.
With 166 user I/Os available, group I/O banks by voltage standard and keep wide payload buses on contiguous banks to preserve timing. Use series termination on high-speed output banks and review the datasheet I/O banking tables before pin assignment; changing banks after layout on an OTP device is costly because board respins and flight-part reprogramming both carry long lead times.
合规信息
Space-grade ceramic-package device; compliance declarations are typically provided per program documentation. Consult Microchip for the current RoHS/REACH statement for this MPN.
