RTAX4000D-CQ352B - 4M-Gate Rad-Tolerant FPGA CQFP-352 | Microchip
料号： RTAX4000D-CQ352B ✓ 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 |
RTAX4000D-CQ352B 概述
A radiation-tolerant FPGA is a field-programmable gate array designed to survive the ionizing radiation environment of space flight. Unlike commercial FPGAs, radiation-tolerant parts combine radiation-hardened-by-design libraries with antifuse-based one-time-programmable interconnect, so they are immune to configuration upsets (SEU in configuration memory) and are live at power-up with no external configuration flash. Within the power-management-free space electronics hierarchy, they sit alongside rad-hard ASICs and processors as the primary digital glue logic, signal processing, and bus interface fabric for satellites and probes.
Key features of the RTAX4000D include single-chip form factor (configuration is held in antifuse fabric, not external memory), low-power CMOS operation at 1.5V, live-at-power-up behavior critical for launcher and satellite power sequencing, and DSP-oriented multiply-accumulate blocks from the RTAX-DSP family. The D variant adds these DSP functions to the RTAX-S/SL fabric, enabling on-board image processing, FFT, and digital filtering in flight hardware.
Architecturally, the device is built on Actel/Microsemi 0.15 um antifuse technology with a Sea-of-Modules logic fabric; the standard speed grade offers combinatorial CLB delays in the sub-nanosecond range (0.99 ns maximum is specified for the -1 speed grade variant). The hermetic ceramic CQFP package supports the outgassing, moisture, and thermal-cycling requirements of spaceflight assembly flows.
Typical applications include satellite payload data processing, spacecraft bus control, telemetry/telecommand interfaces, and radiation-environment instrument controllers. Designers choose the CQFP-352 variant when a hermetic, inspectable, solderable package is required for board-level spaceflight build standards.
A key design consideration: RTAX-DSP devices are one-time programmable - there is no reconfiguration, so designers must fully verify designs in Microchip Libero/M Designer software and on PROTO prototype units before committing flight units.
This page synthesizes distributor availability data, same-package drop-in alternatives across speed grades, and practical spaceflight design notes not found in the manufacturer datasheet.
直接替换替代料： RTAX4000D-CQ352B ——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： RTAX4000D-CQ352B （相同外形与封装尺寸） ——差异在于 Package, Family, Equivalent System Gates, Logic Cells, Radiation Tolerance.
快速对比工具——选择替代料号进行并排对比：
RTAX4000D-1CQ352B
✅ 直接替换✓ 有现货
$2600 / 个
查看数据手册 →RTAX4000DL-CQ352B
✅ 直接替换✓ 有现货
$6900 / 个
查看数据手册 →RTAX4000D-CQ352E
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →RTAX4000D-CQ352V
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →RTAX4000SL-CQ352B
✅ 直接替换✓ 有现货
$1 / 个
查看数据手册 →RTAX4000SL-1CQ352B
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →RTAX4000D-CQ352B 最大额定值与电气特性
| Logic Cells | 55,440 |
| Configurable Logic Blocks (CLBs) | 36,960 |
| Equivalent Gates | 4,000,000 |
| System Gates (cells, per Jotrin listing) | 33,600 |
| Family | RTAX-DSP (RTAX-S/SL/DSP) |
| Process Technology | 0.15 um |
| Core Supply Voltage | 1.5 V (1.425 V to 1.575 V) |
| Technology Type | Antifuse, one-time programmable, radiation-tolerant |
| 封装 | 352-pin Ceramic CQFP (CQFP-352) |
| 安装类型 | Surface Mount |
| Configuration | Live at power-up, single chip, no external configuration memory |
| Radiation Tolerance | Radiation-tolerant (space-flight qualified family) |
| Application Domain | Space flight systems |
| Programmability | OTP (one-time programmable antifuse) |
RTAX4000D-CQ352B 352-pin ceramic cqfp (cqfp-352) 引脚配置指南
RTAX4000D-CQ352B（352-pin ceramic cqfp (cqfp-352) 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： RTAX4000D-CQ352B.
请参阅 数据手册 以查看完整引脚配置。
典型应用
RTAX4000D-CQ352B 适用于 6 应用s: Satellite Payload Data Processing, Spacecraft Bus Control and Telemetry, Onboard Image and Signal Processing, Launch Vehicle Avionics, Radiation-Hardened Instrument Controllers, Secure Military and Aerospace Glue Logic.
Satellite Payload Data Processing
The RTAX4000D-CQ352B fits payload processing because its RTAX-DSP fabric embeds multiply-accumulate blocks on a radiation-tolerant antifuse base, enabling onboard FFTs, FIR filtering, and image compression without external DSP devices. Its 4M-gate / 36,960-CLB capacity hosts the processing pipeline plus bus interface glue in one chip, and its 0.15 um 1.5V CMOS process keeps static power low over multi-year missions. Configured once at the factory, it is live at power-up with no configuration memory to upset, simplifying payload power sequencing. Designers trade longer development cycles (OTP, no reconfiguration) for guaranteed SEU immunity in the configuration fabric.
推荐
Spacecraft Bus Control and Telemetry
For spacecraft bus controllers, the RTAX4000D-CQ352B implements command decoders, telemetry formatters, memory controllers, and MIL-STD-1553 or SpaceWire interface glue. The live-at-power-up antifuse architecture means the bus controller is functional the instant power is applied - critical for launch vehicles and fail-safe recovery modes. The 1.5V core (1.425V-1.575V) with low static current keeps the power budget predictable, and the hermetic CQFP-352 package withstands thermal cycling. The SL-based RTAX4000SL-CQ352B is often selected for pure bus logic without DSP needs, in the identical footprint, enabling board-level reuse across payload and bus boards.
推荐
Onboard Image and Signal Processing
Earth-observation and scientific instruments rely on the RTAX4000D-CQ352B to perform real-time image correction, correlation, and spectral processing next to the sensor. The D-variant DSP blocks provide dedicated multiply-accumulate resources that pure SL fabric lacks, achieving deterministic throughput for convolution and FFT kernels, while the 4M-gate capacity holds frame buffers, sequencers, and downlink formatting on the same chip. The 0.99 ns combinatorial CLB delay of the -1 speed grade supports tens-of-MHz processing clocks adequate for many instrument pipelines. Because the antifuse configuration cannot upset, processing integrity is maintained through single-event environments without external watchdog reload.
推荐
Launch Vehicle Avionics
Launch vehicle avionics demand circuits that are functional at the first microsecond of battery power and immune to vibration, thermal shock, and radiation - all satisfied by the RTAX4000D-CQ352B. Live-at-power-up antifuse configuration eliminates boot delay and configuration-memory upsets, while the hermetic ceramic CQFP package and gull-wing leads support the solder inspection flows mandated in launch electronics. The device implements flight-event sequencing, redundancy voting, and telemetry multiplexing within its 36,960 CLBs. Engineering teams typically verify on PROTO prototype units (same timing in non-hermetic packages) before programming flight units, since the fabric is one-time programmable.
推荐
Radiation-Hardened Instrument Controllers
Scientific instruments on deep-space probes and Earth-orbiting platforms use the RTAX4000D-CQ352B as the central controller interfacing sensors, actuators, and the spacecraft data bus. Radiation tolerance of the RTAX-DSP fabric mitigates total ionizing dose and single-event effects in the control path, while the 1.5V low-power process limits the instrument's share of the mission power budget. The 4M-gate capacity integrates sensor sequencing, calibration DSP, and fault-management state machines on a single qualified device, reducing part count and board area. Designers must complete full timing closure before programming because no field updates are possible in flight.
推荐
Secure Military and Aerospace Glue Logic
For defense and aerospace programs, the RTAX4000D-CQ352B consolidates scattered ASIC/PLD glue logic - address decoding, bus bridging, protocol conversion - into a single one-time-programmable, single-chip device with no external configuration bitstream to intercept or corrupt. Its antifuse fabric offers inherent resistance to readback attacks, and live-at-power-up operation suits always-on secure subsystems. The 55,440 logic cells provide headroom for design growth without a PCB respin, and speed-grade variants (-1) let performance be increased on the same footprint. Ground-based rad-test heritage of the RTAX family simplifies qualification documentation for military programs.
推荐
推荐产品汇总
工程参考数据： RTAX4000D-CQ352B ——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 | RTAX4000D-1CQ352B | RTAX4000DL-CQ352B | RTAX4000SL-CQ352B | RTAX4000SL-1CQ352B |
|---|---|---|---|---|---|
| Package | CQFP-352 (hermetic ceramic) | CQFP-352 - same | CQFP-352 - same | CQFP-352 - same | CQFP-352 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Equivalent Gates | 4,000,000 | 4,000,000 | 4,000,000 | 4,000,000 | 4,000,000 |
| Logic Cells | 55,440 | 55,440 | 55,440 | 55,440 | 55,440 |
| CLBs | 36,960 | 36,960 | 36,960 | 36,960 | 36,960 |
| DSP Fabric | Yes (RTAX-DSP) | Yes (RTAX-DSP) | Yes (RTAX-DSP) | No (RTAX-SL) | No (RTAX-SL) |
| Speed Grade | Standard | -1 (0.99 ns max CLB delay) | Standard (low-power) | Standard | -1 (faster) |
| Core Supply Voltage | 1.5 V (1.425-1.575 V) | 1.5 V (1.425-1.575 V) | 1.5 V | 1.5 V | 1.5 V |
| Process Technology | 0.15 um antifuse | 0.15 um antifuse | 0.15 um antifuse (low-power option) | 0.15 um antifuse | 0.15 um antifuse |
| Radiation Tolerance | Radiation-tolerant, space flight | Radiation-tolerant, space flight | Radiation-tolerant, space flight | Radiation-tolerant, space flight | Radiation-tolerant, space flight |
关键差异点
- DSP-enhanced fabric on a radiation-tolerant base （对比 RTAX4000SL-CQ352B)
- Standard speed grade at potentially lower cost （对比 RTAX4000D-1CQ352B)
- Lower static power for power-critical missions （对比 RTAX4000DL-CQ352B)
设计说明
The RTAX4000D-CQ352B is one-time programmable (antifuse). There is no field reconfiguration after programming, so any HDL defect discovered post-programming scraps the flight unit. Always verify designs on PROTO prototype units - Microchip datasheet notes these have the same timing attributes as RTAX-S/SL and RTAX-DSP flight units but ship in non-hermetic ceramic packages - and complete full static timing analysis in Microchip Designer before releasing programming files. Budget prototype iterations into the program schedule.
The core supply must be held at 1.5 V nominal within 1.425-1.575 V. Use a low-noise point-of-load regulator with adequate decoupling at the CQFP-352 power pins. Per Microchip USA listing, the -1 grade device is specified at 1.5 V nominal with this tolerance band; check I/O bank supply requirements separately in the RTAX-S/SL/DSP datasheet since VCCI can differ from VCC. Estimated: core current scales with toggle rate, so worst-case power analysis should use Libero SmartPower with flight-representative activity files, not just the static datasheet figure.
The 352-pin ceramic CQFP has gull-wing leads on all four sides with 0.5 mm-class pitch - inspectable but fragile. Support the solder-joint inspection flows (X-ray or visual per your build standard) by providing adequate courtyard keepout and lead access in the land pattern. Handle with ESD precautions and avoid lead bending during rework; ceramic packages tolerate thermal cycling well but the leads do not forgive repeated rework. Verify the exact CQFP-352 mechanical drawing dimensions in the Microchip RTAX-S/SL/DSP datasheet before finalizing the footprint.
合规信息
Spaceflight hermetic ceramic CQFP packaging; qualification is per space program flows rather than AEC-Q100. RoHS/REACH status not stated in provided data.
