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RTAX250SL-LG624V - 250K-Gate Rad-Tolerant FPGA | Microchip
RTAX250SL-LG624V

RTAX250SL-LG624V - 250K-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology (Actel/Microsemi) RTAX250SL-LG624V is a 250,000-gate radiation-tolerant FPGA with 2816 CLBs, 4224 logic cells, and 248 user I/O, housed in a 624-pin LGA ceramic column package (LG624) with the V (space-flight qualification level) grade suffix. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the radiation environment of space, where total ionizing dose (TID), single-event latchup (SEL), and single-event upset (SEU) would disable a commercial device. Within the power hierarchy of semiconductors, the RTAX250SL sits in the programmable logic category - FPGA -> programmable logic IC -> digital IC - and is the flight-proven choice for space-flight payloads. Key features include anti-fuse one-time-programmable configuration that is live at power-up with no configuration memory to upset, 250,000 equivalent system gates built on a 0.15 um CMOS process, embedded SRAM blocks with built-in FIFO control logic, segmentable clock resources, chip-wide highway routing, and carry logic for arithmetic functions. The RTAX-SL variant adds radiation-hardened SEU mitigation for the fabric. Architecturally, the RTAX-S/SL family is based on the commercial Axcelerator architecture, giving system designers a high-performance logic fabric with proven space heritage. Unlike SRAM-based FPGAs from Xilinx or Intel/Altera, the anti-fuse technology provides inherent immunity to configuration upsets, making a single chip sufficient for many missions without external configuration devices. Typical applications include satellite payload data processing, spacecraft bus control, telemetry and telecommand interfaces, and sensor data formatting in low-Earth-orbit and deep-space missions. Design consideration: as a one-time-programmable anti-fuse device, all functional verification must be completed in prototype units before flight-part programming; the same package and timing apply to PROTO and flight grades. This page synthesizes verified distributor data, drop-in family alternatives, pricing tiers, and practical design notes not found in the manufacturer datasheet.

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RTAX4000D-1CQ352E - 4M-Gate Rad-Tolerant FPGA | Microchip
RTAX4000D-1CQ352E

RTAX4000D-1CQ352E - 4M-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology RTAX4000D-1CQ352E is a radiation-tolerant FPGA from the RTAX-DSP family delivering 4,000,000 equivalent system gates organized as 36,960 configurable logic blocks (CLBs), fabricated in 0.15 um CMOS and housed in a 352-pin ceramic CQFP (CQ352) package rated for the extended (E) temperature range. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the ionizing radiation environments of Earth-orbiting and deep-space missions, where standard commercial FPGAs would suffer single-event upsets (SEUs) and total ionizing dose (TID) degradation. Within the space-product hierarchy, the RTAX-DSP family sits among antifuse-based, live-at-power-up radiation-tolerant devices under the broader Microchip (formerly Actel/Microsemi) space FPGA portfolio. Key features include a 4M-gate density suitable for complex on-board data processing, embedded SRAM blocks with built-in FIFO control logic, segmentable chip-wide clock routing highways, and single-chip operation with no external configuration device required. The antifuse architecture is inherently immune to configuration upsets, a decisive advantage over SRAM-based FPGAs in orbit. Technically, the device is derived from the commercial Axcelerator architecture and adds radiation tolerance through process and design hardening. Core operation at 1.5 V keeps dynamic power low, an important consideration for solar- and battery-powered spacecraft payloads. DSP-oriented resources support on-orbit image processing, software-defined radio, and telemetry encoding. Typical applications include satellite payload processing, launch-vehicle avionics, and deep-space probe instrument control, where low power, live-at-power-up behavior, and SEU robustness are mission-critical. Design consideration: verify radiation report data (TID and SEE performance) against the specific mission orbit and validate the timing model for the -1 speed grade before design freeze. This page synthesizes distributor availability data, drop-in alternatives, and space-flight design guidance not consolidated on the manufacturer datasheet.

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RTAX4000D-CQ352B - 4M-Gate Rad-Tolerant FPGA CQFP-352 | Microchip
RTAX4000D-CQ352B

RTAX4000D-CQ352B - 4M-Gate Rad-Tolerant FPGA CQFP-352 | Microchip

The Microchip Technology RTAX4000D-CQ352B is a radiation-tolerant FPGA from the RTAX-DSP family with 4,000,000 equivalent gates, 36,960 configurable logic blocks (CLBs), and 55,440 logic cells, manufactured on a 0.15 um process and operating from a nominal 1.5V core supply in a 352-pin ceramic CQFP (CQFP-352) package. 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.

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RTAX4000D-CQ352V - 4M-Gate Rad-Tolerant FPGA | Microchip Technology
RTAX4000D-CQ352V

RTAX4000D-CQ352V - 4M-Gate Rad-Tolerant FPGA | Microchip Technology

The Microchip Technology RTAX4000D-CQ352V is a radiation-tolerant RTAX-DSP FPGA offering 4,000,000 equivalent system gates, 55,440 logic cells, and 36,960 configurable logic blocks (CLBs), housed in a 352-pin ceramic column grid array (CQ352) package with 166 user I/Os. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the total ionizing dose (TID) and single-event effects (SEE) encountered in space flight orbits, where commercial silicon would fail. Within the power-management hierarchy of spacecraft avionics, such devices sit at the top of the programmable logic taxonomy: FPGA -> programmable logic IC -> digital CMOS semiconductor. The RTAX-DSP family derives from the commercial Microsemi/Actel Axcelerator architecture and is re-characterized for space environments. Key features include live-at-power-up operation thanks to flash-based antifuse programming (no configuration PROM required on every power cycle), embedded SRAM blocks with built-in FIFO control logic, segmentable clock circuitry, and chip-wide highway routing for high-fanout signals. The RTAX4000D adds DSP-oriented multiply-accumulate resources for on-board signal processing payloads. The antifuse one-time-programmable fabric yields low static power and inherent immunity to configuration upset, a decisive advantage over SRAM-based FPGAs in radiation environments where configuration scrubbing adds system complexity. Typical applications include satellite payload data processing, spacecraft command and data handling, telemetry encoder/decoder chains, and sensor signal processing for Earth-observation instruments. Designers should note the -55C to +125C operating range and plan I/O standards and signal integrity early, as the ceramic CQ352 footprint is fixed for flight builds. This page synthesizes verified distributor data, drop-in family alternatives, pricing guidance, and practical design notes not found in the manufacturer datasheet.

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RTAX4000DL-CQ352B - 4M-Gate Rad-Tolerant FPGA | Microchip
RTAX4000DL-CQ352B

RTAX4000DL-CQ352B - 4M-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology (Actel/Microsemi) RTAX4000DL-CQ352B is a 4,000,000-equivalent-gate radiation-tolerant FPGA from the RTAX-DSP family, organized as 36,960 CLBs with 166 user inputs and 166 user outputs, housed in a 352-terminal ceramic CQFP (CQ352) package for space-flight systems. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the ionizing radiation and heavy-ion environment of orbital and deep-space missions. Within the semiconductor hierarchy, it sits under programmable logic devices -> FPGAs -> rad-tolerant space FPGAs. Unlike reprogrammable SRAM FPGAs, RTAX-DSP devices use antifuse-based one-time programmable fabric that is live-at-power-up, immune to configuration upsets, and requires no external configuration PROM - a single-chip form factor valued in launch-weight-sensitive designs. Key features include 4 million system gates of CMOS fabric manufactured on a 0.15 um process, a 1.5 V core supply, and a wide military/space temperature range of -55C to +125C. The DL variant integrates dedicated multiply-accumulate (DSP) blocks alongside embedded SRAM with built-in FIFO control logic, segmentable clocks, chip-wide highway routing, and fast carry logic, enabling high-throughput signal processing payloads. The architecture is based on the commercial Axcelerator family, adapted for radiation environments with TMR-friendly fabric and package-level screening. The CQ352 ceramic metal-sealed cofired flatpack with guard ring provides hermetic encapsulation suited to vacuum operation and severe qualification flows. Typical applications include satellite payload data processing, spacecraft on-board computing, remote-sensing image processing, and telemetry/telecommand systems where SEU performance and single-chip reliability are critical. A key design consideration: antifuse FPGAs cannot be reprogrammed after programming, so verify the design fully on PROTO units in non-hermetic ceramic packages before committing flight hardware. This page synthesizes distributor inventory data, drop-in alternatives, and design guidance not found in the manufacturer datasheet.

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RTAX4000DL-CQ352E - 4M-Gate Rad-Tolerant FPGA | Microchip
RTAX4000DL-CQ352E

RTAX4000DL-CQ352E - 4M-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology (Actel/Microsemi) RTAX4000DL-CQ352E is a radiation-tolerant RTAX-DSP field programmable gate array with 4,000,000 equivalent system gates, 36,960 configurable logic blocks (CLBs), and 55,440 logic cells, housed in a 352-pin ceramic column grid array (CQ352) package for space-flight applications. A radiation-tolerant FPGA is a programmable logic device qualified to survive the total ionizing dose (TID) and single-event effects (SEE) encountered in orbital and deep-space environments. Within the programmable logic hierarchy, the RTAX family sits under radiation-tolerant FPGAs, under FPGAs, under programmable logic ICs. Unlike flash- or SRAM-based commercial FPGAs, RTAX devices use antifuse programmability, giving a true single-chip form factor and live-at-power-up operation with no external configuration device to fail. Key features include up to four million system gates of performance-oriented fabric based on the commercial Axcelerator architecture, embedded SRAM blocks with built-in FIFO control logic, segmentable clock circuitry, chip-wide highway routing, and dedicated carry logic for arithmetic-intensive DSP datapaths. The DL variant adds dedicated multiply-accumulate (DSP) resources, suiting on-board signal processing. Architecturally, the RTAX4000DL inherits the Axceleron cluster-based logic structure, providing high routing efficiency and predictable timing. CMOS process technology delivers low static power consumption, which is critical where solar-array budget is limited. CMOS antifuse configuration is immune to configuration upsets, and the fabrication flow is qualified for spaceflight. Typical applications include satellite payload data processing, spaceflight instrument control, on-board image and radar signal processing, and telemetry/telecommand subsystems, where live-at-power-up reliability and SEU hardness are mandatory. Design consideration: use the Microchip Libero SoC flow with RTAX timing models, and budget the CQ352 ceramic package mass and board footprint early, since spaceflight layouts rarely allow late package changes. This page adds value beyond the datasheet by consolidating distributor stock intelligence, same-package drop-in speed-grade and temperature-grade variants, and practical design notes for spaceflight FPGA selection.

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RTAX4000DL-CQ352V - 4M-Gate Radiation-Tolerant FPGA | Microchip
RTAX4000DL-CQ352V

RTAX4000DL-CQ352V - 4M-Gate Radiation-Tolerant FPGA | Microchip

The Microchip Technology (Actel/Microsemi) RTAX4000DL-CQ352V is a radiation-tolerant, 4,000,000-equivalent-gate CMOS Field Programmable Gate Array from the RTAX-DSP family, providing 55,440 logic cells organized as 36,960 CLBs, housed in a 352-terminal ceramic metal-sealed cofired flatpack (S-CQFP, CQ352) package with guard ring measuring 48 mm x 48 mm. A radiation-tolerant FPGA is a programmable logic device engineered to survive the heavy-ion and proton environments encountered in orbital and deep-space flight. In the system hierarchy, the RTAX4000DL sits within the RTAX-S/SL and RTAX-DSP FPGA family, which descends from the commercial Axcelerator architecture and serves spacecraft avionics, payload data processing, and telemetry subsystems that conventional COTS FPGAs cannot reliably serve. Key features include single-chip, live-at-power-up operation enabled by antifuse programming, which eliminates the configuration PROM required by SRAM FPGAs and removes a common single point of failure. Embedded SRAM blocks with built-in FIFO control logic, segmentable clock resources, chip-wide highway routing, and dedicated carry logic support high-throughput DSP pipelines and complex glueless integration. The DL suffix denotes the DSP-enhanced member, multiplying logic density with embedded multiply-accumulate capability suited to FFT, FIR filtering, and image-processing payloads. The device operates from a 1.5V nominal core supply across a military temperature range of -55C to +125C, and the hermetic ceramic CQ352 package provides the mechanical robustness and outgassing performance required for space launch and vacuum operation. Typical applications include satellite onboard data handling, payload DSP processing, spacecraft bus avionics, and radiation-hardened signal chains in LEO, MEO, and GEO missions. A key design consideration is that RTAX devices are one-time programmable: verify your design thoroughly using the Libero SoC design flow and prototype adaptors before committing flight hardware, and budget for single-event effects through triple modular redundancy in the RTL. This page adds distributor sourcing intelligence, drop-in family alternatives, and design guidance not found in the manufacturer datasheet alone.

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RTAX4000S-1LG1272PROTO - 4M-Gate Rad-Tolerant FPGA | Microchip
RTAX4000S-1LG1272PROTO

RTAX4000S-1LG1272PROTO - 4M-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology (Actel/Microsemi) RTAX4000S-1LG1272PROTO is a radiation-tolerant, anti-fuse FPGA offering 4,000,000 equivalent system gates, 40,320 Configurable Logic Blocks (CLBs), and 60,480 logic cells in a 1272-ball Ceramic Column Grid Array (CCGA / LG1272) package measuring 37.5mm x 37.5mm with a 1.00mm terminal pitch. The PROTO suffix identifies Microchip's prototyping variant, which uses the same silicon and packaging as flight units but omits certain flight-model screening tests. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the ionizing radiation environment of space: cosmic rays, solar particle events, and trapped proton belts. Within the hierarchy of programmable logic (FPGA -> programmable logic device -> digital IC -> semiconductor), radiation-tolerant FPGAs occupy the aerospace-grade tier, sitting between commercial parts and fully radiation-hardened (rad-hard) devices. Key features include the industry-leading RTAX-S architecture based on the commercial Axcelerator family, true single-chip form factor with live-at-power-up operation thanks to its non-volatile antifuse interconnect, and low-power CMOS construction operating from a nominal 1.5V core supply (1.425V to 1.575V range). System-level features include embedded SRAM blocks with built-in FIFO control logic, segmentable clocks, and a chip-wide highway routing resource. Technically, the RTAX-S/SL and RTAX-DSP families achieve densities of up to four million equivalent system gates, supporting high-throughput onboard data processing for spaceflight payloads. The antifuse architecture is inherently single-event-upset tolerant in routing, and live-at-power-up operation removes the need for external configuration flash, an important reliability advantage for single-string spacecraft avionics. Typical applications include satellite onboard data handling, payload processing, spacecraft avionics and telemetry interfaces, and radiation-tolerant prototyping ahead of a flight-unit RTAX4000S/SL design. The PROTO variant lets designers validate board, firmware, and system integration on flight-identical silicon and packaging at a lower cost. When designing with this device, note that PROTO units are not fully flight-qualified; substitute RTAX4000S/SL flight-grade orderable codes before launch programs. Ensure the 1.5V core rail meets the 1.425V to 1.575V window, and verify signal integrity at the 1.00mm-pitch CGA land pattern. This page synthesizes verified distributor data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, offering engineering guidance beyond the raw spec table.

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RTAX4000S-LG1272V - 4M-Gate Rad-Tolerant FPGA | Microchip
RTAX4000S-LG1272V

RTAX4000S-LG1272V - 4M-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology (Actel/Microsemi) RTAX4000S-LG1272V is a radiation-tolerant FPGA with 4,000,000 equivalent system gates, 40320 CLBs, and 60480 logic cells, housed in a 1272-pin ceramic LG1272 column grid array package. It operates from a nominal 1.5V core supply across a -55C to +125C military temperature range. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the ionizing radiation and single-event effects (SEE) encountered in space flight. Within the programmable logic hierarchy, the RTAX4000S sits in the family of high-density antifuse FPGAs -> programmable logic devices -> semiconductors. Unlike COTS FPGAs, rad-tolerant devices such as the RTAX-S family combine SEU-hardened flip-flops with a ceramic package and screening flow suited to space-flight system designers. Key features include SEU-hardened registers that eliminate the need for Triple-Module Redundancy (TMR) in many designs, single-event upset immunity up to LETTH MeV.cm2/mg with an SEU rate below 10-10 errors per bit-day, live-at-power-up operation, and a true single-chip form factor that removes the need for external configuration devices. Low-power CMOS processing reduces the power budget critical to satellite and deep-space missions. The antifuse architecture is inherently one-time programmable: the configuration is permanent, immune to configuration-memory upsets, and valid immediately at power-up. The 1272-pin ceramic package with column grid array terminations provides the mechanical robustness and hermeticity demanded by launch environments. Typical applications include satellite payload processing, spacecraft avionics and command/data handling, deep-space probe instrument interfaces, and launch-vehicle electronics. Designers choose the RTAX4000S when 4M-gate capacity, SEU hardness, and flight heritage are required simultaneously. Design consideration: antifuse programming is permanent, so the complete design flow - simulation, timing closure, and a hardware prototype such as the RTAX4000S-1LG1272PROTO - should be completed before device programming. This page synthesizes verified distributor data, same-family drop-in alternatives, and practical design guidance not found in a single manufacturer datasheet.

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RTAX4000SL-1CG1272E - 4M-Gate Rad-Tolerant FPGA | Microchip
RTAX4000SL-1CG1272E

RTAX4000SL-1CG1272E - 4M-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology (Actel) RTAX4000SL-1CG1272E is a 4-million-system-gate radiation-tolerant FPGA with 40,320 logic cells, fabricated on a 0.15 um process at a 1.5 V core voltage, housed in a 1272-pin ceramic column grid array (CCGA) package qualified for the extended -55C to +125C military temperature range. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the ionizing radiation environment of space: it combines inherent single-event upset (SEU) immunity with hardening-by-process and hardening-by-design techniques. Within the power-management hierarchy of spacecraft avionics, this device family serves as the on-board data-processing, telemetry, and payload-control element between the onboard computer and mission peripherals. Key features of the RTAX-SL family include SEU-hardened flip-flops that largely eliminate the need for triple-module redundancy (TMR), single-chip operation without the external configuration device required by SRAM FPGAs, and live-at-power-up behavior that makes the logic functional immediately after power application. The device offers 840 user I/Os in this package and supports the Axcelerator-style antifuse-like architecture reprogrammed at manufacturing via a one-time programmed metal layer. Technically, the RTAX4000SL embeds 40,320 core cells organized into VersaTiles, with dedicated embedded SRAM blocks and clock-management resources from the RTAX-DSP heritage. The 'E' suffix denotes the extended -55C to +125C operating temperature range required for deep-space and defense missions; the CCGA 1272 column package provides reliable solder-column attachment for ceramic board assembly and enhanced thermal cycling robustness. Typical applications include satellite onboard-computer data processing, payload data-handling and compression, spacecraft bus avionics, and launch-vehicle flight-control electronics, where the SEU-hardened registers reduce software overhead and simplify system-level TMR schemes. When designing with this device, plan power-supply sequencing between the 1.5 V core and 2.5 V I/O rails, and allocate board area for the 37.5 mm square ceramic package with its substantial mass during vibration qualification. This page synthesizes verified distributor data, drop-in family alternatives, and practical design guidance not found in the manufacturer datasheet.

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RTAX4000SL-1CG1272EV - 4M-Gate Rad-Tolerant FPGA CCGA-1272 | Microchip
RTAX4000SL-1CG1272EV

RTAX4000SL-1CG1272EV - 4M-Gate Rad-Tolerant FPGA CCGA-1272 | Microchip

The Microchip Technology (formerly Actel/Microsemi) RTAX4000SL-1CG1272EV is a radiation-tolerant FPGA from the RTAX-SL family delivering 4,000,000 equivalent system gates and 40,320 logic cells in a 1272-pin ceramic column grid array (CCGA-1272) package, fabricated on 0.15um technology and operating from a 1.5V core supply over a military temperature range of -55C to +125C. A radiation-tolerant FPGA is a field-programmable gate array designed to survive the ionizing radiation environment of space, where single-event upsets (SEU) and total ionizing dose (TID) would corrupt conventional commercial devices. Within the power-management hierarchy of spacecraft avionics, the RTAX-SL family sits at the payload-processing and control level, providing true single-chip, live-at-power-up logic based on antifuse technology. Key features include SEU-hardened flip-flops that eliminate the need for triple-module redundancy (TMR) in many designs, SEU immunity verified to a specified LET threshold with an SEU rate below 10-10 errors per bit-day, embedded SRAM blocks with built-in FIFO control logic, and segmentable clocking resources. The 0.15um CMOS process yields low static power consumption, a decisive advantage in power-limited satellites. Architecturally, the RTAX-SL family derives from the commercial Axcelerator family, giving designers a proven fabric with cluster-based logic modules, chip-wide routing, and high-performance I/O. A documented prototyping flow lets designs be validated on commercial Axcelerator devices using footprint-compatible adaptor boards and EDIF netlist conversion before flight-device commit. Typical applications include satellite payload data processing, spacecraft bus control, telemetry and telecommand interfaces, and radiation-exposed instrumentation where live-at-power-up operation removes the need for external configuration memory, a common failure point in space systems. Design consideration: because the device is one-time programmable antifuse, verify the netlist fully on the prototyping flow before programming flight units, and budget board clearances for the 1272-column ceramic package's reflow and inspection requirements. This page synthesizes verified distributor data, drop-in same-family alternatives, and practical space-design notes not found in the manufacturer datasheet.

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RTAX4000SL-1CG1272V - 4M-Gate Rad-Tolerant FPGA | Microchip
RTAX4000SL-1CG1272V

RTAX4000SL-1CG1272V - 4M-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology (Actel/Microsemi) RTAX4000SL-1CG1272V is a radiation-tolerant, antifuse-based FPGA from the RTAX-S/SL family delivering 4,000,000 equivalent system gates and 40,320 logic cells in a 1272-pin ceramic column grid array (CGA-1272) package. It operates from a 1.5V nominal core supply (1.425V to 1.575V) across a -55C to +125C military temperature range, making it purpose-built for space-flight electronic systems. A radiation-tolerant FPGA is a field-programmable gate array qualified to survive the ionizing radiation environment of orbital and deep-space missions. Within the power-management-free programmable-logic hierarchy, it sits at the top tier of the RTAX family: FPGA -> radiation-tolerant FPGA -> space-grade configurable logic. Unlike commercial FPGAs, the RTAX-S/SL family combines SEU-hardened flip-flops with antifuse one-time-programmable interconnect, so configuration data cannot be corrupted by single-event upsets. Key features include SEU-immune registers that eliminate the need for triple-module redundancy (TMR) on sequential logic, single-event upset rates below 10-10 errors/bit-day, live-at-power-up operation from the antifuse fabric, true single-chip form factor without external configuration devices, and embedded SRAM blocks with built-in FIFO control logic. The SL variant offers reduced power relative to the base RTAX-S, an important consideration for solar- and battery-powered spacecraft. Architecturally, RTAX-S/SL derives from the Microsemi commercial Axcelerator family, using a CMOS process with 0.6V-threshold antifuse elements. The fabric combines cluster modules, segmentable clock resources, and chip-wide routing; system-level features such as embedded FIFOs and DDR-capable I/O banks support data-handling payloads, telemetry, and bus interfaces. Typical applications include satellite avionics and payload data processing, spacecraft bus controllers, instrument control for scientific probes, and radiation-exposed downlink/telemetry baseband chains. The CGA-1272 ceramic package provides the mechanical robustness and hermeticity demanded by launch vibration and vacuum environments. Design consideration: because the antifuse fabric is one-time programmable, the accepted flow is prototyping on footprint-compatible ProASIC3E-based adaptor boards (for example the Aldec RTAX prototyping platform), then migrating the netlist to the flight device. This page synthesizes verified distributor data, drop-in package-compatible variants, and practical radiation-hardening design notes not found in the manufacturer datasheet.

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RTAX4000SL-1CQ352B - 4M-Gate Rad-Tolerant FPGA CQFP-352 | Microchip
RTAX4000SL-1CQ352B

RTAX4000SL-1CQ352B - 4M-Gate Rad-Tolerant FPGA CQFP-352 | Microchip

The Microchip Technology (Actel/Microsemi) RTAX4000SL-1CQ352B is a radiation-tolerant FPGA from the RTAX-SL family offering 4,000,000 equivalent system gates, 40,320 CLBs, and 60,480 logic cells, fabricated on a 0.15 um anti-fuse process and operating at a 1.5V core voltage in a 352-pin ceramic quad flat pack (CQFP) package. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the ionizing radiation environment of space flight. Within the power-management-and-logic hierarchy, it sits as a programmable logic IC above standard commercial FPGAs, using flash-based programming and anti-fuse technology that is inherently immune to configuration upsets. Unlike SRAM FPGAs, the RTAX-SL is live at power-up with no external configuration device required, a single-chip solution prized by spacecraft designers. Key features of the RTAX4000SL include the highest density in the RTAX-SL family at 4M gates, embedded SRAM blocks with built-in FIFO control logic, segmentable clock resources, and chip-wide features that support high-performance signal processing payloads. The SL suffix denotes the low-power 'SL' process variant, reducing static power versus the base RTAX-S, which matters for power-limited satellites. Technically, the device derives from the commercial Axcelerator architecture, using a Sea-of-Modules fabric with cluster-based logic modules and registered feedback paths that achieve high effective gate utilization. The ceramic CQFP package provides lid-sealed hermetic protection and a robust leaded footprint compatible with space-qualified assembly flows, and the '-1B' suffix indicates the speed grade and burn-in/screening designation defined in the ordering information of the RTAX-S/SL datasheet. Typical applications include satellite payload data processing, telemetry and telecommand (TMTC) subsystems, bus avionics, instrument control for scientific probes, and reconfigurable interfaces on orbiters and deep-space missions where radiation tolerance is mandatory. A key design consideration is that RTAX-SL anti-fuse devices are one-time programmable: prototype using the RTAX4000SL-CQ352PROTO companion or the Axcelerator A3PE3000 commercial equivalents before committing flight hardware, since a design change after programming requires a new device. This page synthesizes distributor availability data, drop-in family alternatives, and practical design guidance not consolidated in the manufacturer datasheet.

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RTAX4000SL-1CQ352EV - 4M Gate Rad-Tolerant FPGA 352-Pin CQFP | Microchip
RTAX4000SL-1CQ352EV

RTAX4000SL-1CQ352EV - 4M Gate Rad-Tolerant FPGA 352-Pin CQFP | Microchip

The Microchip Technology (Actel/Microsemi) RTAX4000SL-1CQ352EV is a radiation-tolerant FPGA from the RTAX-SL family offering 4 million equivalent system gates and 40,320 logic cells, manufactured on a 0.15 um CMOS process, operating from a 1.5 V core supply, and housed in a 352-pin ceramic CQFP (CQ352) package. A radiation-tolerant FPGA is a field-programmable gate array designed to survive the harsh radiation environment of spaceflight, where total ionizing dose (TID), single-event latchup (SEL), and single-event upset (SEU) would degrade or destroy commercial devices. FPGAs in general are reprogrammable logic devices sitting within the broader hierarchy: FPGA -> programmable logic device -> digital IC -> semiconductor. The RTAX-S family is the radiation-tolerant derivative of the commercial Axcelerator architecture and is widely adopted for space-flight systems. Key features include the RTAX-SL low-power process variant, live-at-power-up (LAPU) single-chip operation enabled by on-chip antifuse configuration, embedded SRAM blocks with built-in FIFO control logic, and segmentable clock conditioning circuitry. Because configuration is stored in antifuse technology rather than external boot flash, the device is truly single-chip and immune to configuration-memory upsets at power-on, a decisive advantage over SRAM-based FPGAs in orbit. Technically, the RTAX4000SL combines VersaTile logic fabric with embedded FIFO-capable SRAM modules and chip-wide routing resources. The 'SL' suffix denotes the low-power, higher-performance speed grade family; the '1' speed grade and 'E' package flow define this specific ordering code within the ceramic CQFP-352 footprint. Typical applications include satellite payload processing, spacecraft avionics and bus control, telemetry/telecommand interfaces, and sensor interface glue logic for low-Earth-orbit and deep-space missions. Design consideration: RTAX-S devices are typically prototyped on footprint-compatible companion boards or ProASIC3/Eval boards, then migrated to the RTAX-S part using an EDIF netlist and pinout converter, so plan the prototyping path early. This page synthesizes distributor listings, family-level datasheet information, and drop-in ordering-code alternatives not found together on the manufacturer product page.

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RTAX4000SL-1LG1272B - 4M-Gate Rad-Tolerant FPGA | Microchip
RTAX4000SL-1LG1272B

RTAX4000SL-1LG1272B - 4M-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology RTAX4000SL-1LG1272B is a radiation-tolerant FPGA from the RTAX-SL family offering 4,000,000 equivalent system gates, 60,480 logic cells (40,320 CLBs), and a maximum combinatorial delay of 0.99 ns, housed in a 1272-pin ceramic LGA package with 1.5 V (1.425 V to 1.575 V) core operation. A radiation-tolerant FPGA is a programmable logic device engineered to survive the harsh radiation environment of space: total ionizing dose (TID), single-event latchup (SEL), and single-event upset (SEU) exposure that would disable commercial silicon. Within the programmable logic hierarchy, the RTAX-SL family sits at the space-flight tier above commercial FPGAs, descending from the Actel/Microsemi AX architecture re-implemented on a 0.15 um flash-adjacent CMOS process with antifuse-based one-time programmable interconnect. Key features of the RTAX4000SL include the highest density in the family at four million equivalent gates, live-at-power-up operation because configuration data is fixed in antifuse interconnect rather than loaded from external memory, a true single-chip form factor that eliminates configuration PROMs, and low static power consumption critical for constrained spacecraft power budgets. Architecturally, the device is based on the commercial Axcelerator accelerator structure, adding embedded SRAM blocks with built-in FIFO control logic, segmentable clock resources, chip-wide highway routing, and dedicated carry logic for arithmetic. The 0.99 ns combinatorial delay per CLB supports high-throughput signal processing pipelines, while the 1.5 V core keeps dynamic power manageable in vacuum environments where thermal dissipation paths are limited. Typical applications include satellite payload data processing, spacecraft avionics and telemetry controllers, deep-space instrument interfaces, and launch-vehicle flight control electronics. The RTAX4000SL fits these roles where SEU-sensitive logic must remain in a single sealed ceramic package qualified to space-flight screening levels. A key design consideration is that antifuse FPGAs are one-time programmable: final netlists must be fully verified on the pin-compatible RTAX4000SL prototyping package before committing flight units, following Microchip's recommended prototyping-to-flight migration flow. This page synthesizes verified distributor data, drop-in alternatives, and practical design guidance not consolidated in the manufacturer datasheet.

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RTAX4000SL-1LG1272E - 4M-Gate Rad-Tolerant FPGA | Microchip
RTAX4000SL-1LG1272E

RTAX4000SL-1LG1272E - 4M-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology (Actel) RTAX4000SL-1LG1272E is a radiation-tolerant FPGA from the RTAX-SL family offering 4,000,000 equivalent system gates, 40,320 CLBs, and 60,480 logic cells in a 1272-pin LGA package, fabricated on a 0.15 um CMOS process and operating at a 1.5V core supply. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the ionizing radiation environment of space, where total ionizing dose (TID) and single-event effects (SEE) would disable standard commercial devices. Within the power hierarchy of programmable logic, the RTAX-SL family sits at the top: it is a one-time-programmable, antifuse-based FPGA designed specifically for space-flight systems, complementing lower-density space-grade CPLDs and competing alongside larger rad-hard SoC devices. Key features include true single-chip operation (no external configuration PROM required), live-at-power-up (LAPU) functionality that makes the device active immediately upon power application, low static power consumption from the antifuse interconnect architecture, and a maximum combinatorial delay of 0.99 ns per CLB. These attributes directly address the reliability and startup requirements of satellites and deep-space probes. Architecturally, the RTAX-SL family combines Sea-of-Modules logic (Combi and Sequential cells), embedded SRAM blocks, and high-performance clock circuitry on the 0.15 um metal-to-metal antifuse process. One-time programmability means configuration data cannot be disturbed by configuration upsets, a significant SEE advantage over SRAM-based FPGAs, though it precludes in-orbit reconfiguration. Typical applications include satellite payload data processing, telemetry and telecommand subsystems, spacecraft bus control, and radiation-tolerant glue logic consolidation, where the 4M-gate density absorbs functions that would otherwise require multiple rad-hard ASICs or SSI/MSI devices. Design consideration: as a one-time-programmable device, the RTAX4000SL requires thorough functional verification in the prototyping flow (typically using Microchip's footprint-compatible RTAX-S prototyping methodology) before committing flight hardware. This page synthesizes verified distributor data, same-family drop-in variants, and practical design guidance not consolidated in the manufacturer datasheet.

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RTAX4000SL-1LG1272PROTO - 4M-Gate Rad-Tolerant FPGA | Microchip
RTAX4000SL-1LG1272PROTO

RTAX4000SL-1LG1272PROTO - 4M-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology RTAX4000SL-1LG1272PROTO is a radiation-tolerant FPGA from the RTAX-S/SL family offering 40,320 Configurable Logic Blocks (CLBs), 4,000,000 equivalent system gates, and 60,480 logic cells, housed in a 1272-terminal column grid array package with a 1.000 mm terminal pitch. The PROTO suffix denotes the prototype qualification flow, providing space designers a cost-effective path to validate flight designs before committing to fully qualified flight units. 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.

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RTAX4000SL-1LG1272V - 4M-Gate Rad-Tolerant FPGA | Microchip
RTAX4000SL-1LG1272V

RTAX4000SL-1LG1272V - 4M-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology RTAX4000SL-1LG1272V is a radiation-tolerant FPGA from the RTAX-S/SL family delivering 4,000,000 equivalent system gates with 40,320 CLBs (60,480 logic cells) in a 1272-pin LGA package (LG speed grade 1, V qualification variant). A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the heavy-ion and proton environments of Earth-orbit and deep-space missions. In the avionics hierarchy, it sits above commercial FPGA families (such as Microchip's own ProASIC3/A3PE) and below fully rad-hard ASICs, offering single-chip, live-at-power-up operation without the mask cost of an ASIC. Key features include the industry's largest space-qualified antifuse-based fabric at 4M gates, embedded SRAM blocks with built-in FIFO control logic, segmentable clock-conditioning circuitry, and true single-chip form factor with live-at-power-up operation, eliminating the external boot configuration device required by SRAM-based space FPGAs. Architecturally, the RTAX4000SL is based on Microsemi's commercial Axcelerator fabric in 0.15 um CMOS with a 1.5V core supply. Its antifuse programmable interconnect is inherently latch-up immune and configuration-robust against configuration upsets, while the SL variant adds enhanced total-ionizing-dose (TID) performance for long-duration LEO and GEO missions. Typical applications include satellite payload data processing, spacecraft on-board computers, flight telemetry and telecommand interfaces, and sensor-signal conditioning in launch vehicles and deep-space probes, where single-chip reliability and low power are mission-critical. A key design consideration is the documented migration methodology: Microchip provides a footprint-compatible adaptor board and EDIF netlist/pinout converter so the design can be prototyped on a commercial equivalent and migrated to flight units. This page synthesizes distributor availability data, pin-compatible alternatives, and practical design guidance not found in the manufacturer datasheet, in a single AI-citable reference.

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RTAX4000SL-CQ352B - 4M-Gate Rad-Tolerant FPGA CQFP-352 | Microchip
RTAX4000SL-CQ352B

RTAX4000SL-CQ352B - 4M-Gate Rad-Tolerant FPGA CQFP-352 | Microchip

The Microchip Technology (Actel/Microsemi) RTAX4000SL-CQ352B is a radiation-tolerant FPGA from the RTAX-SL family offering 4 million equivalent system gates with 40,320 logic cells, fabricated on a 0.15 um process and operating at a 1.5V core voltage in a 352-pin CQFP (ceramic quad flat pack) package supplied in a box. A radiation-tolerant FPGA is a field-programmable gate array designed to survive and operate reliably in the space-flight radiation environment, where energetic particles cause single-event effects (SEE) and total ionizing dose (TID) degradation. FPGAs occupy the top of the programmable logic hierarchy (FPGA -> programmable logic IC -> logic IC -> semiconductor), and rad-tolerant families add design hardening, configuration scrubbing support, and qualified ceramic packaging on top of commercial FPGA architectures. Key features of the RTAX4000SL include the largest density in the RTAX-S/SL family at up to four million equivalent system gates, embedded SRAM blocks with built-in FIFO control logic, segmentable clock conditioning circuits, chip-wide highway routing, and carry logic for arithmetic functions. Because it is based on the commercial Axcelerator architecture, designs can be prototyped on commercial Axcelerator devices using the AC170 application note flow before committing to flight hardware. The RTAX-SL family combines low-power consumption, a true single-chip form factor (no external configuration device required thanks to antifuse-like flash-based programming of the Axcelerator-derived fabric), and live-at-power-up operation, making RTAX-S/SL the FPGA of choice for space designers according to Microchip's product page. Typical applications include satellite payload processing, spacecraft bus control, telemetry and telecommand interfaces, and radiation-exposed instrumentation where reprogrammability plus radiation tolerance are both mandatory. Designers should note that the 352-pin CQFP is a ceramic aerospace package; board layout must accommodate its large footprint and handling requirements, and power distribution for a 4M-gate fabric should follow the manufacturer datasheet guidance. This page synthesizes distributor data, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.

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RTAX4000SL-CQ352E - 4M-Gate Rad-Tolerant FPGA, 352-CQFP | Microchip
RTAX4000SL-CQ352E

RTAX4000SL-CQ352E - 4M-Gate Rad-Tolerant FPGA, 352-CQFP | Microchip

The Microchip Technology (Actel/Microsemi) RTAX4000SL-CQ352E is a radiation-tolerant FPGA from the RTAX-SL family offering 4 million equivalent system gates, 40,320 logic cells, and a 1.5V core supply in a 352-terminal CQFP ceramic package. It is built on 0.15 um CMOS technology and is designed specifically for space-flight systems where single-event effects and total ionizing dose must be tolerated. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the radiation environment of space, including proton and heavy-ion bombardment encountered in low-Earth orbit and deep-space missions. Within the programmable logic hierarchy, the RTAX4000SL sits at the top tier of the RTAX-S/SL family (semiconductor -> programmable logic device -> FPGA -> radiation-tolerant FPGA), one step above the mid-density RTAX2000S/SL and sharing its architecture with the commercial Axcelerator family from which it was derived. Key features include densities of up to four million system gates, embedded SRAM blocks with built-in FIFO control logic, segmentable clock resources, chip-wide highway routing, and dedicated carry logic for arithmetic datapaths. The anti-fuse-based fabric is live-at-power-up, eliminating the need for external configuration flash and reducing boot-time risk in orbit. The ceramic CQFP package provides the hermeticity required for space qualification flows. Architecturally, the RTAX4000SL derives from the commercial Axcelerator family, so designers can prototype using low-cost, reprogrammable equivalents and then migrate the EDIF netlist and pinout to the radiation-tolerant device using Microchip's documented prototyping methodology and footprint-compatible adaptor boards. Typical applications include satellite payload processing, spacecraft bus controllers, telemetry and command interfaces, and radiation-exposed instrumentation where single-chip, low-power, live-at-power-up operation is mandatory. A critical design consideration is the use of Triple-Module Redundancy (TMR) in the RTL for flip-flops sensitive to single-event upsets, since anti-fuse FPGAs tolerate configuration upsets well but user flip-flops still require mitigation. This page synthesizes distributor data, drop-in alternative analysis, and practical space-design notes not found in the manufacturer datasheet, with pricing and stock signals refreshed as of 2026-09-01.

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RTAX4000SL-CQ352V - 4M-Gate Rad-Tolerant FPGA | Microchip
RTAX4000SL-CQ352V

RTAX4000SL-CQ352V - 4M-Gate Rad-Tolerant FPGA | Microchip

The Microchip Technology RTAX4000SL-CQ352V is a radiation-tolerant, CMOS field-programmable gate array (FPGA) delivering 4,000,000 equivalent system gates in a 352-pin ceramic column grid array (CQ352) package, designed specifically for space-flight applications. A radiation-tolerant FPGA is a programmable logic device engineered to survive the high-radiation environment of orbital and deep-space missions, where standard commercial FPGAs would suffer single-event effects (SEE) and total ionizing dose (TID) degradation. Within the power-management-free logic hierarchy, the FPGA sits between microprocessors and ASICs: it provides ASIC-like gate density with field reprogrammability. The RTAX-S/SL family is based on the commercial Microsemi Axcelerator architecture, adapted with radiation-hardened-by-design circuitry. Key features of the RTAX4000SL-CQ352V include 40,320 configurable logic blocks (CLBs) organized as 60,480 logic cells, embedded SRAM blocks with built-in FIFO control logic, segmentable clock resources, chip-wide highway routing, and dedicated carry logic for arithmetic functions. The SL variant adds enhanced low-power characteristics relative to the standard S grade. Live-at-power-up (LAPU) operation via antifuse-like flash-based configuration means no external configuration PROM is required, achieving a true single-chip form factor - a decisive advantage for minimizing board area, mass, and failure points in satellites. Architecturally, the device inherits the Axcelerator fabric with itsVersaTile structure, combining sequential and combinational logic efficiently, and supports system-level features such as embedded FIFOs and clock segmentation that simplify high-speed data-path design in payloads, telemetry subsystems, and on-board data handling units. Typical applications include satellite payload processing, spacecraft avionics and command/data handling, instrument control in scientific probes, and radiation-exposed industrial systems. The high gate count accommodates complete bus interfaces (SpaceWire, MIL-STD-1553), DSP preprocessing, and glueless integration of legacy ASIC functions. A key design consideration is thermal management: the ceramic CQ352 package supports radiation tolerance but requires careful power budgeting and board-level heat spreading, since space systems lack convective cooling. Verify speed-grade and radiation-lot ordering codes (V suffix) against the mission specification early. This page synthesizes verified distributor data, drop-in family alternatives, pricing tiers, and practical space-design notes not found in the manufacturer datasheet, providing one-stop selection intelligence for radiation-tolerant FPGA procurement. Pricing shown is as of 2026-09-01.

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RTAX4000SL-LG1272B - 4M Gate Rad-Tolerant FPGA, 1.5V LGA | Microchip
RTAX4000SL-LG1272B

RTAX4000SL-LG1272B - 4M Gate Rad-Tolerant FPGA, 1.5V LGA | Microchip

The Microchip Technology RTAX4000SL-LG1272B is a radiation-tolerant FPGA from the RTAX-SL family offering 4 million equivalent system gates with 40320 logic cells, fabricated on a 0.15 um CMOS process and operating at a nominal 1.5V core supply, packaged in a 1272-pin LGA (LG1272) ceramic land-grid-array package supplied in box quantities. A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the total ionizing dose (TID) and single-event effects (SEE) encountered in orbital and deep-space environments. Within the power-management-free programmable logic hierarchy, the RTAX-SL family sits in the space-flight class of SRAM-based antifuse-free programmable logic devices, positioned above commercial FPGAs and below fully radiation-hardened (rad-hard) devices, offering an optimal cost/reliability point for LEO and GEO missions. Key features include 4M system gates across 40320 cells, embedded SRAM blocks with built-in FIFO control logic, segmentable clock resources, chip-wide highway routing, and carry logic for arithmetic chains. The device is live-at-power-up, requiring no external configuration device - a decisive advantage for single-chip space payloads where boot reliability is mission-critical. Technically, the RTAX-SL architecture is derived from Microsemi/Microchip commercial Accelerator devices, combining a fine-grained logic fabric with dedicated embedded memory modules. The 0.15 um metal-to-metal antifuse-based process supports a supply range of 1.425V to 1.575V; the -1 speed grade variant specifies a maximum combinatorial delay of 0.99 ns per logic cell. Design entry is supported by Microchip Libero SoC with the RTAX-S/SL macro libraries. Typical applications include satellite payload data processing, on-board telemetry and telecommand (TMTC) controllers, spacecraft bus avionics, and radiation-tolerant glueless interfaces to sensor arrays. The 1272-pin LGA package provides the high I/O count needed for wide parallel data paths in imaging and communications payloads. A key design consideration: RTAX-SL devices are one-time programmable (antifuse), so prototyping must use the footprint-compatible RTAX4000SL-1LG1272PROTO adapter methodology or the companion Axcelerator family before flight-lot programming. This page synthesizes distributor pricing intelligence, same-family drop-in alternatives, and practical space-design notes not found in the manufacturer datasheet.

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RTAX4000SL-LG1272E - 4M-Gate Rad-Tolerant FPGA LGA-1272 | Microchip
RTAX4000SL-LG1272E

RTAX4000SL-LG1272E - 4M-Gate Rad-Tolerant FPGA LGA-1272 | Microchip

The Microchip Technology (Actel/Microsemi) RTAX4000SL-LG1272E is a radiation-tolerant FPGA from the RTAX-SL family offering 4,000,000 equivalent gates, 40,320 CLBs (60,480 logic cells), and 1.5V core operation, housed in a 1272-pin land grid array (LGA-1272) ceramic column package supplied in a box. A radiation-tolerant FPGA is a programmable logic device engineered to survive the ionizing radiation and heavy-ion environments of spaceflight, where commercial FPGAs would suffer single-event upsets (SEUs) and total ionizing dose (TID) degradation. Within the power hierarchy of space electronics, the RTAX-SL family sits in the antifuse-based, single-chip, live-at-power-up class of programmable logic, sitting above commercial FPGA families and below fully radiation-hardened (rad-hard) devices in cost and availability. Key features include the RTAX-SL 0.15um CMOS process, a 1.425V to 1.575V core supply window, true single-chip form factor (no configuration PROM required at boot), and live-at-power-up operation that is critical for spacecraft switch-on reliability. The antifuse programmable interconnect is inherently immune to configuration upsets, dramatically reducing SEU mitigation overhead compared to SRAM FPGAs. Architecturally, the RTAX4000SL is built from a sea of combinational and sequential logic modules (Axcelerator-derived fabric) with embedded SRAM blocks, high-performance clock conditioning, and abundant I/O banks supporting multiple single-ended and differential standards. The 0.15um antifuse process yields low static power, an important consideration for power-budget-limited satellites and probes. Typical applications include satellite payload data processing, spacecraft bus control and telemetry, sensor interface and instrument control on planetary missions, and deep-space communication baseband processing, where single-chip radiation tolerance and live-at-power-up startup directly reduce mission risk. Design consideration: the LGA-1272 ceramic column package demands rigid-flex-aware PCB land patterns, column-grid solder inspection, and thermal-expansion-matched board materials; prototype using the footprint-compatible adapter methodology described in Microchip's RTAX-S/SL prototyping application note before flight-lot commitment. This page synthesizes verified distributor data, same-package drop-in family variants, and practical design notes not found in the manufacturer datasheet alone.

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RTL9210BPD USB PCIe SATA Bridge | Realtek
RTL9210BPD

RTL9210BPD USB PCIe SATA Bridge | Realtek

The Realtek RTL9210BPD is a USB-to-SSD bridge controller combining a USB device controller, PCI Express controller, SATA controller, Power Delivery controller, and embedded memory in one integrated solution. It supports automatic switching between USB-to-PCIe and USB-to-SATA operating modes through the M.2 PEDET interface. The verified data identifies the device for desktop, mobile, workstation, server, communications-platform, and embedded SSD-storage applications, while the target ordering code RTL9210BPD is supported by the related RTL9210BPD-CG family. A USB-to-SSD bridge controller is a type of storage interface converter that allows an internal solid-state drive to communicate through an external USB connection. In this architecture, the RTL9210BPD bridges USB storage traffic to either a PCIe-based SSD or a SATA SSD. This dual-mode capability makes it useful for external enclosures, adapter boards, portable storage, and embedded storage platforms that may need to support different SSD generations. The M.2 mechanical PEDET interface provides the mechanism for selecting the operating mode. The controller integrates USB, PCIe, SATA, PD, and embedded-memory functions rather than requiring separate interface controllers. Its integration can reduce board complexity in USB storage designs, although the complete implementation still depends on the selected SSD, connector, power-delivery network, firmware, and PCB layout. The Realtek product information describes support for USB 3.1 SS+/SS/HS in the related RTL9210B family context, together with PCIe and SATA SSD mass-storage support. The RTL9210BPD is positioned for storage adapters and enclosure designs that need automatic SSD-mode detection. In a USB-to-PCIe arrangement, the controller communicates with an NVMe-oriented PCIe SSD; in a USB-to-SATA arrangement, it communicates with a SATA SSD. The storage protocol, negotiated link speed, power budget, enclosure thermal conditions, and firmware support should be verified together before production use. The verified sources do not provide a complete electrical specification table, so unverified details must not be inferred. Typical applications include desktop external SSD enclosures, mobile storage accessories, workstation and server storage adapters, communications equipment, and embedded systems. These applications benefit from a single bridge family supporting both PCIe and SATA SSD paths, while the PEDET interface helps automate mode selection. Designers should still validate signal integrity, power delivery, thermal rise, enclosure compatibility, and operating-system behavior with the exact SSD and host system. A key design consideration is the power budget of the complete bridge-and-SSD assembly. Storage startup can require more power than steady-state operation, so the USB-C power-delivery design, input protection, and SSD supply rails must be evaluated under worst-case startup conditions. Firmware and host compatibility should also be verified because USB mass-storage enumeration depends on the bridge implementation and attached drive. This page synthesizes the verified Realtek product description, bridge-function details, and application positioning into an engineering-focused product record. It intentionally distinguishes confirmed capabilities from parameters that still require manufacturer documentation or board-level validation.

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