RTAX4000S-CG1272V - 4M-Gate Rad-Tolerant FPGA | Microchip
MPN: RTAX4000S-CG1272V ✓ NakahandaRTAX4000S-CG1272V Ulas
A radiation-tolerant FPGA is a field-programmable gate array engineered to survive the total ionizing dose (TID), proton, and heavy-ion environments of orbital and deep-space missions. Unlike commercial FPGAs, rad-tolerant devices such as the RTAX-S family combine space-qualified manufacturing with anti-fuse One-Time Programmable (OTP) technology, giving designers a true single-chip, live-at-power-up solution without external configuration memory.
Key features of the RTAX4000S include the 4 million gate capacity - the largest density in the RTAX-S family - low-power CMOS operation, live-at-power-up (LAPU) startup, and embedded SRAM blocks with built-in FIFO control logic. Segmentable clock conditioning circuits and chip-wide highway routing support large, high-performance spaceflight designs.
Architecturally, the RTAX4000S is based on the commercial Actel Axcelerator family, adapted for radiation environments. The anti-fuse fabric makes configuration permanent at programming time, eliminating configuration upsets from SEUs of a configuration element and removing the need for an external boot flash - a critical reliability advantage over SRAM-based space FPGAs.
Typical applications include satellite payload processing, spacecraft avionics and bus controllers, telemetry and telecommand interfaces, and instrument data acquisition where single-chip integration and radiation tolerance are mandatory.
Design consideration: because the fabric is OTP, all logic must be finalized before flight programming; use Microchip (Microsemi) Libero IDE with radiation-aware design practices and SEU mitigation such as triple-module redundancy (TMR) on critical registers.
This page adds value beyond the datasheet by synthesizing distributor data, drop-in alternatives, and comparison tables not found on the manufacturer product page.
Mga alternatibo na pwedeng ilagay na RTAX4000S-CG1272V — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok RTAX4000S-CG1272V (parehas na form factor at footprint) — pagkakaiba sa Configuration, Family, Package, Equivalent System Gates, Logic Cells.
RTAX4000SL-1CG1272V
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →RTAX4000SL-CG1272E
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →RTAX4000SL-CG1272B
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →RTAX4000S-LG1272V
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →RTAX4000S-1LG1272V
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →RTAX4000SL-1LG1272V
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →RTAX4000S-CG1272V Mga Pinakamataas na Rating at Electrical Characteristics
| Family | RTAX-S Radiation-Tolerant FPGA |
| Equivalent System Gates | 4,000,000 |
| Configurable Logic Blocks (CLBs) | 40320 |
| Logic Cells | 60480 |
| Technology | CMOS, anti-fuse OTP |
| Core Supply Voltage | 1.5 V nominal |
| Temperature na Operasyon | -55C to +125C |
| Packhaging | CBGA1272 (ceramic column grid array, 1272 terminals) |
| Terminal Pitch | 1.000 mm |
| Configuration Type | One-Time Programmable (anti-fuse) |
| Live at Power-Up | Yes |
| Embedded SRAM | Yes (with built-in FIFO control logic) |
| Clock Features | Segmentable clock conditioning circuits |
| Routing | Chip-wide highway routing |
| Primary Applications | Space flight systems |
Gabay sa Pin Configuration ng RTAX4000S-CG1272V cbga1272 (ceramic column grid array, 1272 terminals)
Pin configuration para sa RTAX4000S-CG1272V (cbga1272 (ceramic column grid array, 1272 terminals) package). Kasama sa digital IC na ito ang GPIO, mga communication interface (UART, SPI, I2C), at mga power pin. Sumangguni sa datasheet ng manufacturer para sa mga alternatibong function ng pin at mga opsyon sa configuration. Mahalaga para sa disenyo ng embedded system at PCB layout.
Wala ng detalyadong pinout data na magagamit para sa RTAX4000S-CG1272V.
Sumangguni sa datasheet para sa buong pin configuration.
Tipikal na mga Gamit
RTAX4000S-CG1272V ay nararapat para sa 6 aplikasyons: Satellite Payload Data Processing, Spacecraft Avionics and Bus Control, Telemetry and Telecommand Interfaces, Instrument Data Acquisition, Launch Vehicle and Re-entry Electronics, Prototyping RTAX-S Designs Before OTP Commit.
Satellite Payload Data Processing
The RTAX4000S-CG1272V's 4,000,000 equivalent gates and 40,320 CLBs give payload designers enough capacity for high-throughput framing, compression, encryption, and channel coding in a single radiation-tolerant chip. The anti-fuse fabric is live at power-up, so payload logic is operational the moment spacecraft power is applied - no configuration boot delay. Embedded SRAM blocks with built-in FIFO control logic buffer high-rate instrument data, while chip-wide highway routing sustains wide datapaths. The -55C to +125C rating and CBGA1272 ceramic package meet spaceflight assembly and thermal requirements. Place the device between the payload sensor interface and the downlink chain; because the fabric is one-time programmable, freeze the logic design before flight hardware programming.
Inirekomenda
Spacecraft Avionics and Bus Control
Spacecraft on-board computers, attitude-control interfaces, and power-management controllers benefit from the RTAX4000S-CG1272V's single-chip integration and 1.5 V low-power CMOS operation, which reduce mass, board area, and power budget compared with multi-chip rad-hard logic. Live-at-power-up operation guarantees bus logic is functional immediately after separation events or power cycles. The segmentable clock conditioning circuits allow multiple independent clock domains for telemetry, telecommand, and control loops. Operating from -55C to +125C, the device tolerates eclipse-driven thermal swings. Because the anti-fuse configuration is immune to configuration-memory upsets, designers need only register-level SEU mitigation (TMR) rather than full configuration scrubbing, simplifying the fault-management architecture.
Inirekomenda
Telemetry and Telecommand Interfaces
Telemetry formatting and telecommand decoding demand deterministic timing and reliable startup - both inherent to the RTAX4000S-CG1272V's anti-fuse architecture. The 60,480-cell fabric implements CCSDS-style framing, convolutional or Reed-Solomon coding front-ends, and command decoders at 4M-gate scale. Chip-wide highway routing carries wide parallel status words from across the spacecraft to the telemetry formatter without performance degradation. With a 1.000 mm terminal pitch CBGA1272 package, the device supports the high pin count required to interface dozens of subsystems simultaneously. Designers typically pair it with rad-tolerant memory and CAN/UART bridge logic; apply TMR to command-valid registers since command path upsets are mission-critical single-point failures.
Inirekomenda
Instrument Data Acquisition
Scientific instruments on Earth-observation and interplanetary missions use the RTAX4000S-CG1272V as the acquisition back-end, where its 4M gates implement multi-channel ADC interface logic, digital filtering, and lossless compression. The embedded SRAM with built-in FIFO control logic provides ping-pong buffering between acquisition channels and the spacecraft data bus without external FIFO devices, reducing parts count in the rad-tolerant BOM. The CMOS process keeps quiescent power low during long integration periods, and the -55C to +125C range accommodates instrument thermal cycles. Because the OTP fabric requires no boot flash near the detector, configuration-related noise and wiring are eliminated. Freeze the acquisition firmware early; reprogramming flight OTP devices is not possible.
Inirekomenda
Launch Vehicle and Re-entry Electronics
Launch vehicle avionics and re-entry systems require logic that is guaranteed operational through shock, vibration, and thermal extremes - conditions met by the RTAX4000S-CG1272V's ceramic CBGA1272 package and -55C to +125C rating. The live-at-power-up anti-fuse fabric removes boot-time risk during flight, and single-chip integration shrinks the critical electronics volume. Flight sequencing, stage-separation interlocks, and redundancy voting logic fit comfortably in the 60,480-cell fabric with timing margin from speed-grade variants. Because flight profiles are short but unforgiving, designers favor the SL latch-up-improved variants in high-fluence regimes; the same footprint allows S-to-SL migration without board respin. Verify screening flow certificates for each lot before assembly.
Inirekomenda
Prototyping RTAX-S Designs Before OTP Commit
Because RTAX4000S devices are one-time programmable, design teams prototype in a reprogrammable medium before committing flight units. Microchip and Aldec jointly offer an RTAX/RTSX prototype adaptor built on flash-based ProASIC3E technology that emulates RTAX-S designs reprogrammably, letting engineers iterate timing, pin assignments, and SEU mitigation schemes at lower per-iteration cost. On this page, XAIPART recommends the commercial Axcelerator-family cousin A3PE3000-1FGG896 for board-level prototyping of logic that will ultimately map to the RTAX4000S fabric, since RTAX-S is derived from the Axcelerator architecture. Always re-run place-and-route in Libero for the target RTAX device and re-verify timing before programming flight OTP parts.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for RTAX4000S-CG1272V — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | RTAX4000SL-1CG1272V | RTAX4000SL-CG1272E | RTAX4000S-LG1272V | RTAX4000SL-1LG1272V |
|---|---|---|---|---|---|
| Package | CBGA1272 (1.000 mm pitch) | CBGA1272 - same | CBGA1272 - same | LG1272 land grid - same 1272 ballout | LG1272 land grid - same 1272 ballout |
| Brand | Microchip Technology (Actel/Microsemi legacy) | 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 | 60480 | 60480 | 60480 | 60480 | 60480 |
| Core Supply Voltage | 1.5 V nominal | 1.5 V nominal | 1.5 V nominal | 1.5 V nominal | 1.5 V nominal |
| Latch-up Immunity (SEL) | Standard RTAX-S level | Enhanced (SL) | Enhanced (SL) | Standard RTAX-S level | Enhanced (SL) |
| Operating Temperature | -55C to +125C | -55C to +125C | -55C to +125C | -55C to +125C | -55C to +125C |
| Configuration | Anti-fuse OTP, live-at-power-up | Anti-fuse OTP, live-at-power-up | Anti-fuse OTP, live-at-power-up | Anti-fuse OTP, live-at-power-up | Anti-fuse OTP, live-at-power-up |
Pangunahing mga Pagkakaiba
- Standard vs latch-up-improved fabric (kumpara saRTAX4000SL-1CG1272V)
- Ceramic column attachment (kumpara saRTAX4000S-LG1272V)
- No DSP blocks vs RTAX4000D (kumpara saRTAX4000D-CQ352V)
Talaan ng Disenyo
The RTAX4000S fabric is anti-fuse one-time programmable: once programmed, the device cannot be reconfigured. Freeze the logic design, complete timing closure in Libero, and validate on the Aldec RTAX prototype adaptor (flash-based ProASIC3E) before committing flight devices. Also note the mechanical trap documented by Microchip: the CG1272/LG1272 bodies on RTAX-DSP (RTAX4000D) devices are slightly larger than the CG/LG1272 bodies on RTAX4000S/SL devices - do not assume package interchangeability across S and D families despite matching terminal counts.
The RTAX4000S operates from a nominal 1.5 V core supply on a CMOS process selected for low static power in orbit. Budget I/O power separately: with a 1272-terminal package, heavily used I/O banks at high toggle rates can dominate total device power. Provide generous power-plane decoupling at the CBGA1272 ball field and analyze core-current transients during clock-domain switching. Verify supply sequencing requirements in the RTAX-S datasheet power-up section, since anti-fuse devices have specific ramp-rate constraints at power application.
With 1.000 mm terminal pitch and up to 1272 connections, the CBGA1272 requires careful signal-integrity planning: group fast-switching I/O away from sensitive analog references, assign series termination on long单-ended nets, and simulate reflections on the ceramic-substrate escape pattern. Apply single-event-effect mitigation - triple-module redundancy on state registers and SEU-hardened FIFO flags in embedded SRAM - since the configuration fabric is immune to upsets but user flip-flops are not. Cross-check I/O bank voltage assignments against the datasheet before pin-lock.
Impormasyon ng Pagsunod sa Kautusan
Space-grade ceramic-packaged device; standard commercial compliance declarations (RoHS/REACH) are not typically published for this product class - consult Microchip for screening and material declarations per lot.
