RTAX4000DL-CQ352V - 4M-Gate Radiation-Tolerant FPGA | Microchip
MPN: RTAX4000DL-CQ352V ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4800 | $4,800.00 |
| 10 | $4650 | $46,500.00 |
| 25 | $4500 | $112,500.00 |
| 50 | $4350 | $217,500.00 |
| 100 | $4200 | $420,000.00 |
Drop-in alternatives for RTAX4000DL-CQ352V — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
RTAX4000DL-1CQ352V
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →RTAX4000D-CQ352V
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →RTAX2000DL-1CQ352V
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$2950 / Unit
View Datasheet →RTAX2000D-1CQ352V
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$3950 / Unit
View Datasheet →RTAX4000SL-1CQ352E
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$3840 / Unit
View Datasheet →RTAX4000DL-CQ352V Maximum Ratings & Electrical Characteristics
| Family | RTAX-S/SL and RTAX-DSP (RTAX-DSP) |
| Equivalent System Gates | 4,000,000 |
| Logic Cells | 55,440 |
| CLB Organization | 36,960 CLBs |
| Process Technology | CMOS, antifuse (one-time programmable) |
| Core Supply Voltage | 1.5 V nominal |
| Operating Temperature | -55C to +125C |
| Package Type | 352-terminal S-CQFP ceramic metal-sealed cofired flatpack (CQ352) |
| Package Dimensions | 48 mm x 48 mm, square, with guard ring |
| JEDEC-30 Package Code | S-CQFP |
| Radiation Tolerance Class | Radiation-tolerant (space-flight) |
| Configuration | Live at power up, single-chip |
| Embedded Memory | Embedded SRAM with built-in FIFO control logic |
| Routing Features | Segmentable clocks, chip-wide highway routing, carry logic |
| Mounting Type | Surface Mount |
RTAX4000DL-CQ352V s-cqfp Pin Configuration Guide
Complete pinout information for RTAX4000DL-CQ352V (s-cqfp package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for RTAX4000DL-CQ352V.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
RTAX4000DL-CQ352V is suitable for 6 applications: Satellite Onboard Data Handling, Payload DSP Processing, Spacecraft Bus Avionics, Radiation-Hardened Signal Chains, LEO/MEO/GEO Communications Payloads, Space Prototyping and Design Emulation.
Satellite Onboard Data Handling
The RTAX4000DL-CQ352V fits spacecraft onboard data handling (OBDH) units where the FPGA consolidates telemetry formatting, telecommand decoding, memory controllers, and bus interfaces into a single live-at-power-up device. Its 4 million equivalent gates and 55,440 logic cells absorb multiple discrete glue-logic functions, while antifuse configuration removes the boot-time vulnerability that SRAM FPGAs present during radiation upsets in orbit. The hermetic CQ352 ceramic flatpack (48 mm x 48 mm) survives launch vibration and vacuum outgassing requirements, and the -55C to +125C operating range covers unheated equipment bays. Embedding the OBDH state machines in one-time-programmable fabric also simplifies radiation assurance review, since no configuration memory upset analysis is needed for the FPGA fabric itself.
Recommended
Payload DSP Processing
As a DL (DSP-enhanced) family member, the RTAX4000DL-CQ352V targets onboard payload processing such as FIR filtering, FFT engines, and image compression for Earth-observation and communications satellites. The combination of 4 million equivalent gates, dedicated carry logic, embedded SRAM with built-in FIFO control, and chip-wide highway routing sustains high-throughput multiply-accumulate pipelines clocked by segmentable clock resources. Because the fabric is radiation-tolerant antifuse, DSP datapaths do not require configuration-memory scrubbing, reducing software overhead in the avionics processor. Placed in the hermetic CQ352 ceramic package, the device operates over the full military range of -55C to +125C from a 1.5V nominal core, helping keep payload power budgets within typical smallsat and GEO payload allocations.
Recommended
Spacecraft Bus Avionics
The RTAX4000DL-CQ352V serves spacecraft bus avionics including attitude determination and control units, power distribution controllers, and platform interface boards. Its live-at-power-up antifuse fabric guarantees that safety-critical functions such as watch-dog logic, mode control, and failure-isolation circuits are active the instant power is applied, a key requirement for autonomous fault recovery in orbit. The 352-terminal S-CQFP ceramic package with guard ring meets the mechanical and thermal-cycling demands of launch and requalification across missions, and the -55C to +125C range covers eclipse-driven thermal swings. Designers typically implement triple modular redundancy in the RTL to mitigate single-event functional interrupts, leveraging the deterministic timing of the Axcelerator-derived architecture.
Recommended
Radiation-Hardened Signal Chains
In mixed-signal space instruments, the RTAX4000DL-CQ352V acts as the digital backbone of radiation-tolerant signal chains, buffering ADC data, implementing decimation filters, and formatting output frames. Embedded SRAM blocks with FIFO control logic absorb rate mismatches between high-speed converters and downlink encoders, while 55,440 logic cells accommodate channelized processing across multiple sensor inputs. The single-chip antifuse approach eliminates the configuration PROM whose contents would otherwise be a soft-error concern near sensitive analog front ends. The 48 mm x 48 mm hermetic CQ352 flatpack simplifies stacking in instrument electronics boxes, and operation from a 1.5V nominal core keeps switching noise low, which matters when the FPGA shares a power bus with precision analog circuitry.
Recommended
LEO/MEO/GEO Communications Payloads
Communications transponders and software-defined radios in orbit use the RTAX4000DL-CQ352V for framing, scrambling, forward-error-correction, and digital up/down conversion. The DL variant's multiply-accumulate resources and chip-wide highway routing support parallel FEC decoders at symbol rates typical of LEO downlinks, while segmentable clocks let independent modulator and demodulator chains run on separate domains. Radiation tolerance of the antifuse fabric avoids the configuration-seesy failure mode of SRAM FPGAs, which is particularly valuable for multi-year GEO missions where configuration upset accumulation is a lifetime reliability limit. The hermetic ceramic CQ352 package and -55C to +125C rating handle the thermal environment of payload modules, and the single-chip form factor saves board area versus multi-chip configuration schemes.
Recommended
Space Prototyping and Design Emulation
Before committing one-time-programmable RTAX flight parts, engineering teams prototype their RTL on emulation hardware: the Aldec ACT-H3Ki-CQ352 adaptor offers power-supply and footprint compatibility with RTAX chips in the CQ352 package, powered either through the CQ352 leads or an onboard power connector, with onboard JTAG for programming. Teams also use commercial Microchip flash FPGAs such as A3PE3000 family devices for early functional prototyping at lower cost, then port to the RTAX antifuse flow in Libero SoC. This staged approach validates timing, pin mapping, and DSP datapaths before burning scarce flight units, which is essential because RTAX4000DL-CQ352V devices cannot be reprogrammed after configuration and flight-lot lead times are long.
Recommended
Recommended Products Summary
Engineering reference data for RTAX4000DL-CQ352V — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | RTAX4000DL-1CQ352V | RTAX4000D-CQ352V | RTAX2000DL-1CQ352V | RTAX2000D-1CQ352V | RTAX4000SL-1CQ352E |
|---|---|---|---|---|---|---|
| Package | CQ352 (352-terminal S-CQFP ceramic) | CQ352 - same | CQ352 - same | CQ352 - same | CQ352 - same | CQ352 - same |
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Equivalent System Gates | 4,000,000 | 4,000,000 | 4,000,000 | ~2,000,000 class | ~2,000,000 class | 4,000,000 |
| Logic Cells | 55,440 | 55,440 | 55,440 | [DATA_NEEDED] | [DATA_NEEDED] | 55,440 |
| Speed Grade | Standard | -1 (faster) | Standard | -1 (faster) | -1 (faster) | -1 (faster) |
| Core Supply Voltage | 1.5 V nominal | 1.5 V nominal | 1.5 V nominal | 1.5 V nominal | 1.5 V nominal | 1.5 V nominal |
| Operating Temperature | -55C to +125C | -55C to +125C | -55C to +125C | -55C to +125C | -55C to +125C | -55C to +125C |
| Configuration | Antifuse, live at power up, single-chip | Antifuse, live at power up | Antifuse, live at power up | Antifuse, live at power up | Antifuse, live at power up | Antifuse, live at power up |
Key Differentiators
- DSP-enhanced die at full 4M density (vs RTAX4000D-CQ352V)
- Faster speed grade available in same footprint (vs RTAX4000DL-1CQ352V)
- Full 4M-gate density vs lower-density same-package parts (vs RTAX2000DL-1CQ352V)
Design Notes
The RTAX4000DL is one-time programmable: once the antifuses are burned, the device cannot be reconfigured. Complete functional simulation, static timing analysis, and board-level validation in the Microchip Libero SoC flow before programming any flight unit. Use prototype routes or the Aldec ACT-H3Ki-CQ352 adaptor (which powers via the CQ352 leads or an onboard connector and programs via onboard JTAG) to validate the design on hardware first. Reordering a replacement die after a programming mistake means full space-grade lead time again.
The RTAX4000DL operates from a 1.5V nominal core supply; provide clean, sequenced rails per the RTAX-S/SL and RTAX-DSP datasheet power-supply section, including I/O bank supplies. Because antifuse FPGAs are live at power up, ensure core voltage monotonic rise and within-spec ramp rate, or the fabric may power up in an undefined state. Estimate total power with the Microchip power calculator using your post-place-and-route netlist, then derate for worst-case military temperature (-55C to +125C) and radiation-induced threshold shifts.
The CQ352 ceramic flatpack has 352 perimeter leads on a 48 mm x 48 mm body; plan the PCB land pattern and escape routing for the large fine-pitch footprint early, including thermal-relief tie patterns for the guard ring. For high-speed payload interfaces, keep stub lengths short on the outer lead rows, use controlled-impedance routing matched to the Axcelerator-derived I/O standards, and place decoupling capacitors directly beneath the package. Simultaneous switching noise on the perimeter I/O should be reviewed with IBIS models from the Microchip design support package.
Compliance Information
Space-grade hermetic ceramic-packaged device; RoHS/reach declarations for CQFP ceramic packages are typically handled via manufacturer environmental reports - verify with Microchip. Qualified per Mil Prf 38535 class Q/V flows per Microchip DLA Cross Reference Guide for family members with DLA drawing numbers; confirm screening level for this exact MPN.
