RTAX4000SL-1LG1272EV - 4M-Gate Rad-Tolerant FPGA | Microchip
MPN: RTAX4000SL-1LG1272EV ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
Drop-in alternatives for RTAX4000SL-1LG1272EV — 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:
RTAX4000SL-1LG1272E
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →RTAX4000SL-1LG1272V
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →RTAX4000SL-LG1272E
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →RTAX4000SL-1CG1272EV
✅ Drop-In ⚠️ 参数待验证✓ In Stock
Contact for price
View Datasheet →RTAX4000SL-1CG1272E
✅ Drop-In ⚠️ 参数待验证✓ In Stock
Contact for price
View Datasheet →RTAX4000SL-CG1272B
✅ Drop-In ⚠️ 参数待验证✓ In Stock
Contact for price
View Datasheet →RTAX4000S-1CG1272V
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$7300 / Unit
View Datasheet →RTAX4000SL-CG1272E
✅ Drop-In ⚠️ 参数待验证✓ In Stock
Contact for price
View Datasheet →RTAX4000SL-1LG1272EV Maximum Ratings & Electrical Characteristics
| Family | RTAX-SL Radiation-Tolerant FPGA |
| System Gates | 4,000,000 |
| Logic Cells (CLBs) | 40,320 |
| Logic Elements | 60,480 |
| Process Technology | 0.15 um CMOS |
| Core Supply Voltage | 1.5 V |
| Package | 1272-Pin LGA (LG1272) |
| Speed Grade | -1 |
| Screening Flow | EV (Space-Grade Variant Suffix) |
| Programming Technology | Antifuse (one-time programmable) |
| Configuration | Live at power-up, single chip |
| Mounting Type | Surface Mount |
RTAX4000SL-1LG1272EV 1272-pin lga (lg1272) Pin Configuration Guide
Complete pinout information for RTAX4000SL-1LG1272EV (1272-pin lga (lg1272) 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 RTAX4000SL-1LG1272EV.
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
RTAX4000SL-1LG1272EV is suitable for 6 applications: Satellite Payload Data Processing, Spacecraft Command and Data Handling (C&DH), Launch Vehicle Avionics, Deep-Space Sensor Interface Electronics, Radiation-Tolerant Glue Logic Consolidation, FPGA Prototyping and Netlist Migration Flow.
Satellite Payload Data Processing
The RTAX4000SL-1LG1272EV fits satellite payload processing because its 4 million gates and 40,320 logic cells provide enough capacity for high-rate data formatting, CCSDS framing, compression pre-processing, and sensor-stream aggregation in a single device. The 1272-pin LGA package supplies the I/O density needed to interface multiple payload sensors and downlink chains concurrently. Its antifuse, live-at-power-up configuration means the payload logic is operational within microseconds of power application - essential for autonomous spacecraft recovery - and cannot be corrupted by configuration-memory upsets. Placed as the payload's main logic hub between ADC/front-end electronics and the downlink modulator, it trades the reprogrammability of SRAM FPGAs for deterministic radiation behavior, which is typically the correct trade for multi-year orbital missions.
Recommended
Spacecraft Command and Data Handling (C&DH)
In C&DH units, the RTAX4000SL-1LG1272EV consolidates telemetry formatting, command decoding, time-tagging, and spacecraft-mode sequencing. The SL family's reduced static power (a key improvement of SL over the RTAX-S base family per Microchip's product page) directly reduces the spacecraft's housekeeping power budget during eclipse, while the 1.5 V core supports low-voltage interfaces to onboard computers. Because antifuse programming is immune to configuration upsets, the C&DH logic remains trustworthy even after years in a proton-rich orbit; designers add TMR on sequencing registers using Microchip's mitigation libraries. The 1272-pin footprint also permits interfaces to multiple redundant MIL-STD-1553/SpaceWire transceivers and memory controllers on one die, reducing parts count and board-level failure modes in the most reliability-critical subsystem of the spacecraft.
Recommended
Launch Vehicle Avionics
Launch vehicles impose extreme vibration and thermal transients during ascent, making the RTAX4000SL-1LG1272EV's single-chip antifuse architecture attractive: there is no configuration PROM to detach under shock, and live-at-power-up logic supports instantaneous flight-computer readiness at ignition. With 4M gates, the device implements flight-critical functions such as gimbal motor control interfaces, redundant sensor voting (triple-channel voting of IMU data), and range-safety interfacing. The -1 speed grade provides the highest timing margin available in the family for closed-loop control latency budgets. For severe thermal cycling during stage separation, the pin-compatible CG1272 ceramic column grid array variants (e.g., RTAX4000SL-1CG1272EV) offer more compliant solder columns; the LG1272 LGA suits shorter-flight profiles where PCB area and height are constrained.
Recommended
Deep-Space Sensor Interface Electronics
Deep-space missions encounter higher total ionizing dose and heavier-ion flux than LEO, favoring the RTAX4000SL-1LG1272EV's antifuse immunity to configuration upsets. Instrument interfaces - focal-plane arrays, spectrometers, magnetometers - can be integrated onto the 4M-gate fabric with dedicated sequencers, FIFOs, and EDAC-protected buffers, using the 60,480 logic elements for parallel data paths. The low static power of the SL family matters for radioisotope-thermoelectric-generator-powered missions where every milliwatt is allocated. Because the device is one-time programmable, the flight configuration is fixed and auditable, simplifying mission assurance review. Designers should route analog front-ends close to the FPGA with solid ground reference in the LG1272 land pattern, and validate SEU behavior of SRAM blocks against the mission's particle spectrum per the RTAX-S/SL datasheet guidance.
Recommended
Radiation-Tolerant Glue Logic Consolidation
Many spacecraft boards still carry dozens of rad-tolerant ASSP and discrete logic devices; the RTAX4000SL-1LG1272EV consolidates them into one live-at-power-up antifuse device, cutting board area, assembly steps, and the number of radiation lots to qualify. Even when a design uses only a fraction of the 40,320 logic cells, the consolidated single-chip approach reduces single-event latch-up exposure by eliminating higher-voltage legacy devices. The 1.5 V core and low SL static power keep consolidated designs within typical spacecraft bus power allocations. Because the family is footprint-compatible across RTAX4000S/SL/D variants, engineers can reserve one LG1272 land pattern and select the cheapest available screened part at build time - a supply-chain hedge that Microchip explicitly supports through its footprint-compatible migration methodology described in the RTAX-S/SL datasheet.
Recommended
FPGA Prototyping and Netlist Migration Flow
Microchip's documented prototyping methodology - footprint-compatible adaptor board plus EDIF netlist and pinout converter - lets teams develop against reusable prototype hardware before programming one-time-programmable flight antifuses. In this flow the RTAX4000SL-1LG1272EV is the migration target: the exact same netlist and pinout file maps from prototype silicon to the EV-screened flight device, eliminating pin-mapping errors late in the program. Using the same 4M-gate die family throughout means timing closure achieved in prototyping carries over to flight hardware, since the architecture, speed grades, and routing fabric are identical. This flow substantially de-risks the single largest program risk of antifuse FPGAs: irreversibility of the flight configuration. Teams should freeze the pinout early, run full timing simulation on the converted netlist, and reserve the LG1272 adaptor board across engineering and flight model builds.
Recommended
Recommended Products Summary
Engineering reference data for RTAX4000SL-1LG1272EV — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | RTAX4000SL-1LG1272E | RTAX4000SL-1CG1272EV | RTAX4000S-1CG1272V |
|---|---|---|---|---|
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 1272-Pin LGA (LG1272) | 1272-Pin LGA (LG1272) - same footprint | 1272-Pin CCGA (CG1272) - same pin function | 1272-Pin CCGA (CG1272) - same pin function |
| System Gates | 4,000,000 | 4,000,000 | 4,000,000 | 4,000,000 |
| Logic Cells | 40,320 | 40,320 | 40,320 | 40,320 |
| Core Voltage | 1.5 V | 1.5 V | 1.5 V | 1.5 V |
| Process Technology | 0.15 um CMOS antifuse | 0.15 um CMOS antifuse | 0.15 um CMOS antifuse | 0.15 um CMOS antifuse |
| Speed Grade | -1 | -1 | -1 | -1 |
| Static Power | Low (SL family enhancement) | Low (SL family) | Low (SL family) | Higher (S base family) |
| Screening Flow | EV (V suffix) | Standard (E suffix) | EV (V suffix) | V suffix |
Key Differentiators
- Lowest static power in the RTAX4000 footprint family (vs RTAX4000S-1CG1272V)
- LGA interconnect for height- and area-constrained boards (vs RTAX4000SL-1CG1272EV)
- EV screening suffix for flight documentation (vs RTAX4000SL-1LG1272E)
- Configuration-upset immunity vs SRAM FPGAs (vs SRAM-based space FPGAs (e.g., Virtex-class))
Design Notes
Antifuse programming is irreversible - the RTAX4000SL-1LG1272EV cannot be reprogrammed once burned. Freeze your pinout and complete full timing closure before submitting a device for programming. Use Microchip's documented prototyping flow (footprint-compatible adaptor board with EDIF netlist and pinout conversion, described in the RTAX-S/SL datasheet) to iterate RTL on reusable prototype hardware first. Submitting an unverified netlist to flight silicon risks scrapping expensive EV-screened parts.
The RTAX4000SL operates from a 1.5 V core with reduced static power versus the RTAX4000S base family - a primary reason to specify SL for power-limited spacecraft buses. Budget I/O power separately: with up to 1272 package connections, simultaneously switching outputs on long traces can dominate dynamic power. Group high-toggle-rate outputs on the same banks, reduce drive strength where timing permits, and confirm core/I/O rail sequencing with your point-of-load converters. Verify exact static and dynamic power figures for your utilization in Microchip's power estimator, as values depend on design activity.
The LG1272 land-grid-array requires a dedicated land pattern with via-in-pad or dog-bone fanout for 1272 connections; verify the exact mechanical drawing in the RTAX-S/SL datasheet before layout release. If launch vibration or thermal cycling is severe, consider the pin-compatible CG1272 ceramic column grid array variants (e.g., RTAX4000SL-1CG1272EV) whose solder columns better accommodate CTE mismatch. Maintain solid, low-impedance ground reference under the die area and place core and I/O decoupling close to the power entry to the land pattern.
Although the antifuse fabric is immune to configuration upsets, user flip-flops and embedded SRAM remain susceptible to single-event effects. Apply triple-module redundancy to control and sequencing registers using Microchip's mitigation libraries, add EDAC to SRAM-based buffers, and analyze the mission particle spectrum against the device's characterized SEU rates. For timing-critical paths after TMR insertion, re-run static timing analysis since added redundancy can change routing and slack.
Compliance Information
Compliance data not stated in the provided web data. Space-grade EV-flow parts may have exemptions from standard consumer RoHS frameworks; confirm with Microchip product compliance documentation.
