A54SX72A-1FG256M - 108K-Gate Antifuse FPGA, 256-FBGA | Microchip
Référence : A54SX72A-1FG256M ✓ Actif| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $89.5 | $89,50 |
| 10 | $82.1 | $821,00 |
| 100 | $74.9 | $7 490,00 |
| 500 | $68.4 | $34 200,00 |
| 1 000 | $62.75 | $62 750,00 |
A54SX72A-1FG256M Présentation
An antifuse FPGA is a type of field-programmable gate array in which the interconnect programming elements are one-time-programmable antifuse cells. Unlike SRAM-based FPGAs, an antifuse FPGA requires no external configuration ROM, configures in milliseconds at power-up, and offers inherently high resistance to radiation and bit-stream theft, making the technology a subset of one-time-programmable programmable logic within the broader power-management-free, low-risk FPGA hierarchy.
Key features include a 0.25 um process operating from a 2.5V core supply, single-chip integration that removes the cost of configuration devices, and the security and low power inherent to antifuse interconnect. The 203 available I/O support multiple voltage-referenced standards, and the -1 speed grade balances performance with availability for long-lifecycle programs.
Architecturally, the SX-A fabric combines C-cells (combinatorial logic) and R-cells (sequential logic) with a segmented routing mesh programmed by metal-to-metal antifuse links, delivering fast, deterministic interconnect delays suitable for high-speed state machines and glue logic consolidation.
Typical applications include aerospace and defense logic replacement, industrial control, communications line cards, and obsolescence mitigation where a one-time-programmable, configuration-free FPGA is preferred.
Design consideration: as a one-time-programmable device, verify the design fully in simulation and, where practical, prototype on the -2 speed grade or PQ208 variant before committing production devices.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
Alternatives de remplacement direct pour A54SX72A-1FG256M — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec A54SX72A-1FG256M (même facteur de forme et même empreinte) — différant par Package, System Gates, Process Technology, Speed Grade, Operating Temperature.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
A54SX72A-FG256M
✅ Remplacement direct✓ En stock
Contactez-nous pour le prix
Voir la fiche technique →A54SX72A-1FGG256M
✅ Remplacement direct✓ En stock
$258.66 / unité
Voir la fiche technique →A54SX72A-1FGG256I
✅ Remplacement direct✓ En stock
$88 / unité
Voir la fiche technique →A54SX72A-2FG256
✅ Remplacement direct✓ En stock
$96.5 / unité
Voir la fiche technique →A54SX72A-2FG256I
✅ Remplacement direct✓ En stock
$198 / unité
Voir la fiche technique →A54SX72A-2FGG256I
✅ Remplacement direct✓ En stock
$79.4 / unité
Voir la fiche technique →A54SX72A-FGG256M
✅ Remplacement direct✓ En stock
$136 / unité
Voir la fiche technique →A54SX72A-1FG256M Valeurs maximales et caractéristiques électriques
| Family | SX-A (Antifuse FPGA) |
| System Gates | 108,000 |
| Typical Gates | 72,000 |
| Module Cells | 4,024 |
| Number of I/O | 203 |
| Tension d'alimentation | 2.25 V to 2.75 V (2.5 V nominal core) |
| Maximum System Frequency | 250 MHz |
| Process Technology | 0.25 um |
| Programming Type | One-Time Programmable (Antifuse) |
| Speed Grade | -1 |
| Température de fonctionnement | -55C to +125C (TC) |
| Boîtier | 256-FBGA (17x17 mm) |
| Type de montage | Surface Mount |
| Packaging | Tray |
| Statut RoHS | RoHS3 Compliant |
| Manufacturer Lead Time | 20 weeks |
| Product Status | Active |
Guide de configuration des broches du A54SX72A-1FG256M 256-fbga (17x17 mm)
Configuration des broches du A54SX72A-1FG256M (boîtier 256-fbga (17x17 mm)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.
Aucune donnée de brochage détaillée disponible pour A54SX72A-1FG256M.
Consultez la fiche technique pour la configuration complète des broches.
Applications typiques
A54SX72A-1FG256M convient pour 6 applications: Aerospace and Defense Logic, Industrial Control and Automation, Communications Line Cards, Obsolescence Mitigation / Legacy Redesign, Secure / Anti-Cloning Systems, Test and Measurement Instrumentation.
Aerospace and Defense Logic
The A54SX72A-1FG256M fits aerospace and defense payloads because its antifuse fabric is inherently radiation-tolerant in configuration (no bitstream can be upset in external memory) and the M-suffix package is rated from -55C to +125C, covering MIL-temperature programs. With 108,000 system gates and 203 user I/O, it consolidates glue logic, bus interfaces, and state machines that were previously multiple ASICs or SSI/MSI parts. Because it is one-time programmable and configures in milliseconds at power-up, no configuration PROM is needed on orbit or in flight hardware, reducing BOM count and single-point failure sources. Designers should implement triple-module redundancy in logic for SEU mitigation where required, and reserve the faster -2 speed grade for time-critical interfaces.
Recommandé
Industrial Control and Automation
In industrial controllers, the A54SX72A-1FG256M replaces multiple discrete logic devices with a single 256-FBGA chip, cutting board area and assembly cost. The 2.5V core supply keeps power low, important for fanless PLC modules and distributed I/O nodes, while 203 I/O lines handle parallel sensor, encoder, and actuator interfaces without external fanout. Its deterministic antifuse interconnect delivers consistent timing across units - valuable in motion control and safety-related sequencing where SRAM-FPGA configuration variability is undesirable. The -1 speed grade comfortably handles typical 20-50 MHz industrial state machines. Designers should budget a 2.5V regulator and level-shift circuitry for 3.3V or 5V field signals, and use the wide -55C to +125C M-grade rating for outdoor and unconditioned cabinets.
Recommandé
Communications Line Cards
Telecom and datacom line cards benefit from the A54SX72A-1FG256M's 250 MHz-class fabric performance and large I/O count for backplane interface logic, framer glue, and protocol bridging. The segmented antifuse routing provides short, predictable interconnect delays, helping close timing on TDM and packet-processing pipelines without the timing closure iterations common on larger SRAM devices. Instant-on configuration means the card is active within milliseconds of power application, simplifying hot-swap sequencing at the shelf level. With the M temperature rating, cards qualify for central-office and outside-plant equipment alike. Place the FPGA near the backplane connector to minimize trace lengths on the parallel 203-I/O banks and decouple each supply ball pair with 0.1 uF ceramics.
Recommandé
Obsolescence Mitigation / Legacy Redesign
A primary use of the A54SX72A-1FG256M today is sustaining legacy Actel SX-A designs whose original devices are exhausted. Because the -1FG256M remains active per Microchip and distributor listings, it serves as the form-fit-function continuation part for existing programmed designs - provided the design netlist is reprogrammed using Microchip Libero/Designer tools and an approved programmer. Its one-time-programmable nature means replacement boards must be programmed at production or via a programming house, not reconfigured in the field. The 20-week manufacturer lead time argues for lifecycle buys; XAIPART stocks same-package variants to bridge gaps. Verify speed-grade timing tables against the original design's constraints before committing to the -1 grade.
Recommandé
Secure / Anti-Cloning Systems
Systems requiring bitstream security - license enforcement modules, encrypted key storage wrappers, anti-counterfeit authentication logic - exploit the antifuse FPGA's inability to be read back. The A54SX72A-1FG256M stores configuration entirely in internal metal antifuse links; there is no external flash to dump and no JTAG readback of the programmed design, raising the effort bar for IP theft far above SRAM FPGAs. The 108K-gate capacity is sufficient for AES wrappers, challenge-response engines, and board-ID logic. Because programming is permanent, incorporate a security review and simulation sign-off step before committing silicon, and reserve unprogrammed devices in a controlled inventory. The M-grade temperature range also suits tamper-exposed outdoor installations.
Recommandé
Test and Measurement Instrumentation
Bench and automated test equipment uses the A54SX72A-1FG256M for deterministic trigger logic, counter/timer arrays, and bus-interface glue where jitter and latency consistency matter. Antifuse interconnect gives every production unit identical propagation delay, simplifying calibration across a fleet of instruments - an advantage over process-variation-prone ASICs and configurable SRAM routing. The 203 I/O support dense parallel capture to FPGA-hosted comparators, and the 250 MHz-class fabric handles fast event counting. Because instruments operate in conditioned environments, the commercial-range -2 variants are also viable where maximum speed is needed. Decouple the 2.5V core aggressively and keep clock balls on matched-length traces to preserve setup margins.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour A54SX72A-1FG256M — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | A54SX72A-FG256M | A54SX72A-1FGG256M | A54SX72A-2FG256 | A54SX72A-2FGG256I |
|---|---|---|---|---|---|
| Package | 256-FBGA (17x17 mm) | 256-FBGA - same | 256-FBGA (GG variant) - same footprint | 256-FBGA - same | 256-FBGA (GG variant) - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108,000 | 108,000 | 108,000 | 108,000 | 108,000 |
| User I/O | 203 | 203 | 203 | 203 | 203 |
| Supply Voltage | 2.25 V to 2.75 V (2.5 V nominal) | 2.25 V to 2.75 V | 2.25 V to 2.75 V | 2.25 V to 2.75 V | 2.25 V to 2.75 V |
| Programming Type | Antifuse (One-Time Programmable) | Antifuse | Antifuse | Antifuse | Antifuse |
Principaux différenciateurs
- Instant-on, configuration-free startup (vs A54SX72A-2FG256)
- Extended temperature range (vs A54SX72A-2FG256I)
- Cost-optimized speed grade (vs A54SX72A-2FG256)
- Inherent bitstream security (vs SRAM FPGAs (e.g., Artix-7))
Notes de conception
The A54SX72A-1FG256M requires a regulated 2.5V core supply (2.25V-2.75V range per distributor data). Unlike SRAM FPGAs, antifuse devices draw no configuration surge at power-up, so the regulator only needs to handle steady-state logic current plus I/O loading. Provide at least one 10 uF bulk capacitor per supply domain and 0.1 uF ceramics at supply ball pairs. Because the device is one-time programmable, an out-of-range supply during programming can permanently damage antifuse links - verify rail accuracy to within 5% before programming.
This is a one-time-programmable device: a flawed bitstream cannot be corrected in the field. Complete gate-level simulation, timing verification against the -1 speed-grade tables in the SX-A datasheet, and ideally prototype on the faster -2 grade or a lower-cost PQ208 variant before committing FG256M production units. Also note quadrant clock pins A, B, C, and D are used only on the A54SX72A; map global clocks deliberately in Libero to avoid skew surprises.
The 256-FBGA (17x17 mm) with 203 signal balls typically requires at least a 4-layer board with via-in-pad or dog-bone fanout on 0.8-1.0 mm ball pitch. Route the four quadrant clock inputs (A, B, C, D - bottom-left, bottom-right, top-left, top-right per the SX-A datasheet) as matched-length traces from a low-jitter source. Follow Microchip's SX-A PCB layout guidelines for the fine-pitch (GG) variants if footprint reuse is planned, since ball pitch may differ between FG and FGG packages.
Estimated: at a typical 20-50 MHz industrial design consuming roughly 300-500 mW core plus I/O power, junction rise in the 256-FBGA over a standard 4-layer board stays modest; the -55C to +125C M-grade rating gives wide margin. For high-utilization designs near 250 MHz, compute actual power with the Microchip SX-A power calculator and confirm junction temperature stays within the derated limit of the chosen temperature grade.
Informations de conformité
RoHS3 compliant and lead-free per Microchip USA listing for the A54SX72A-1FGG256M variant of this package; REACH/halogen status not stated in provided data.
