A54SX72A-CQ256B - SX-A 108K Gate Antifuse FPGA | Microchip
部品番号: A54SX72A-CQ256B ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $285 | $285.00 |
| 10 | $270.75 | $2,707.50 |
| 100 | $256.5 | $25,650.00 |
| 500 | $242.25 | $121,125.00 |
| 1,000 | $228 | $228,000.00 |
A54SX72A-CQ256B 概要
An antifuse FPGA is a one-time-programmable (OTP) programmable logic device whose interconnect switches are permanently formed at programming time. Unlike SRAM FPGAs, antifuse devices retain their configuration through power cycles without any external configuration ROM, offer intrinsic resistance to bitstream readback attacks, and exhibit very low static power - placing them in the programmable logic hierarchy below modern SRAM-based FPGA families but above ASICs for low-to-medium volume designs.
Key features include 72K gates of registered programmable logic, high-speed flip-flops with clock rates in excess of 200 MHz, dedicated global and quadrant clock networks (CLKA, CLKB, and QCLK) for low-skew clocking, and the military-grade ceramic CQFP package with tie bar for reliable solder mounting and hermetic sealing. The 0.25um CMOS antifuse technology delivers deterministic timing, making the device well suited to glue logic consolidation and state-machine heavy designs.
The SX-A architecture uses a Sea-of-Modules fabric composed of combinatorial and sequential modules organized into clusters and quadrants. Interconnect is formed by one-time programmable antifuse elements, giving fixed, timing-verified routing after programming. Design entry is via Libero SoC (formerly Actel Designer), with VHDL/Verilog synthesis and static timing analysis.
Typical applications include military and aerospace embedded controllers, industrial automation glue logic, communications interface bridging, and obsolescence-mitigation redesigns where OTP security and instant-on configuration are required.
Design consideration: because the device is one-time-programmable, verify the complete design with simulation and a target-board prototype before programming production units; antifuse programming is irreversible.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: A54SX72A-CQ256B — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: A54SX72A-CQ256B （同一形状・フットプリント） — 相違点: Package, Process Technology, System Gates, Maximum Toggle Frequency, Family.
クイック比較ツール — 並列比較する代替部品を選択:
A54SX72A-1CQ256B
✅ ドロップイン✓ 在庫あり
価格はお問い合わせください
データシートを見る →A54SX72A-CQ256M
✅ ドロップイン✓ 在庫あり
$2429.15 / 個
データシートを見る →A54SX72A-CQ256M
✅ ドロップイン✓ 在庫あり
$2429.15 / 個
データシートを見る →A54SX32-CQ256B
✅ ドロップイン✓ 在庫あり
価格はお問い合わせください
データシートを見る →A54SX32-CQ256M
✅ ドロップイン✓ 在庫あり
価格はお問い合わせください
データシートを見る →A54SX72A-CQ256B 最大定格＆電気的特性
| Family | SX-A (Antifuse FPGA) |
| System Gates | 108000 |
| Logic Gates | 72K |
| Logic Cells | 4024 |
| CLBs / LABs | 6036 |
| User I/O | 203 |
| Maximum Toggle Frequency | 217 MHz |
| Supply Voltage (Core) | 2.5 V |
| Supply Voltage Range | 2.25 V to 5.25 V (per variant data) |
| Process Technology | 0.25 um / 0.22 um CMOS |
| Programmability | One-Time Programmable (antifuse, OTP) |
| Configuration Memory | Non-volatile antifuse (no external boot device) |
| Clock Networks | CLKA, CLKB global clocks plus QCLK quadrant clocks |
| パッケージ | 256-pin CQFP (BFCQFP with tie bar), square, flat leads |
| Package Code | QFF |
| Temperature Grade | Military (B suffix) |
| 実装タイプ | Surface Mount |
A54SX72A-CQ256B qff ピン配置ガイド
A54SX72A-CQ256B (qff パッケージ) のピン配置。 このデジタルICには、GPIO、通信インターフェース (UART、SPI、I2C)、および電源ピンが含まれています。代替ピン機能と設定オプションについては、メーカーのデータシートを参照してください。組み込みシステム設計とPCBレイアウトに不可欠です。
詳細なピン配置データはありません: A54SX72A-CQ256B.
詳細は データシート をご参照ください。
主な用途
A54SX72A-CQ256B の用途: 6 件s: Military and Aerospace Embedded Controllers, Industrial Automation Glue Logic Consolidation, Communications Interface Bridging, Obsolescence Mitigation and Redesign, High-Reliability Power-Up-Critical Sequencing Logic, Secure Single-Chip Integration.
Military and Aerospace Embedded Controllers
The A54SX72A-CQ256B fits military controller designs because its hermetic 256-pin ceramic CQFP package, military B temperature grade, and one-time-programmable antifuse fabric address the reliability and anti-tamper requirements of defense electronics. The 108K system gates and 203 user I/Os provide enough capacity to integrate address decoding, bus interfaces, and control state machines into a single chip, replacing multiple MSI/LSI devices. Because configuration is stored in antifuse switches, the device powers up instantly with no configuration PROM and cannot be read back, simplifying secure disposal of design IP. Designers should validate timing at worst-case military temperature corners using Libero SoC static timing analysis before fuse programming.
おすすめ
Industrial Automation Glue Logic Consolidation
In industrial PLC, motor-control, and backplane applications, the A54SX72A-CQ256B consolidates address decoders, interrupt controllers, and handshaking glue logic into one 72K-gate device. Its deterministic antifuse timing - toggle rates up to 217 MHz - and instant-on configuration mean the logic is active the moment power is applied, which is valuable for safety interlocks that must be valid at power-up without waiting for a configuration controller. The 2.5V core with tolerant I/O interfaces eases integration into mixed-voltage industrial racks. Note that at 1-2W-class power levels the ceramic CQFP dissipates heat through its leads, so copper pour under the package is recommended in estimate terms for high-utilization designs.
おすすめ
Communications Interface Bridging
The A54SX72A-CQ256B serves as a protocol bridge and framer in telecommunications and datacom line cards. With 203 user I/Os and global CLKA/CLKB plus quadrant QPLL-class QCLK clock networks, it can implement multi-domain clocking for serial-parallel conversion, FIFO interfaces, and backplane arbitration with low skew. The antifuse fabric's fixed routing yields deterministic, simulation-accurate timing above 200 MHz, which matters for TDM-style interfaces where setup/hold margins are verified once and never drift. Designs requiring more than 50% of the die should be checked against the A54SX32 footprint reduction path only if capacity allows.
おすすめ
Obsolescence Mitigation and Redesign
The A54SX72A-CQ256B is frequently used in lifetime-buy and redesign programs for legacy defense and industrial systems. Because the SX-A family remains supported in Microchip Libero SoC and the ceramic CQFP-256 matches many legacy board footprints, upgrading from older Actel SX or SX-A parts (e.g., A54SX32-CQ256B) to the 72K-gate SX72A can be done without PCB respin when pinout compatibility is confirmed in the datasheet pin tables. The OTP antifuse also removes configuration-ROM obsolescence risk, a common failure point in legacy SRAM FPGA retrofits. Verify utilization fits the target die before committing to the migration.
おすすめ
High-Reliability Power-Up-Critical Sequencing Logic
Applications such as avionics power sequencers, safety interlocks, and test-set control need logic valid within microseconds of power application. The A54SX72A-CQ256B's antifuse configuration is hard-wired at programming, so there is no configuration latency, no bitstream corruption risk from SEU in configuration memory, and no external flash to fail. The 2.5V core and 217 MHz-class flip-flops implement multi-channel sequencer state machines comfortably, while the 203 I/Os monitor and drive power-good and enable lines. Designers should implement redundancy in the fabric for the highest-criticality paths and verify at military temperature corners.
おすすめ
Secure Single-Chip Integration
Where IP protection is paramount - encryption key handling logic, proprietary control algorithms, copy-sensitive products - the A54SX72A-CQ256B's OTP antifuse architecture provides intrinsic security: there is no configuration bitstream in external memory to intercept, and no readback path from programmed antifuses. The 72K gates integrate the complete secure function on one chip, and the hermetic ceramic package supports tamper-evident potting approaches. Unlike SRAM FPGAs that must reload secret bitstreams at every power-up, this device requires physical decapsulation to attack, raising the cost of reverse engineering substantially.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: A54SX72A-CQ256B — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | A54SX72A-1CQ256B | A54SX72A-CQ256M | A54SX72A-CQ256 | A54SX32-CQ256B | A54SX32-CQ256M |
|---|---|---|---|---|---|---|
| Package | 256-pin CQFP (BFCQFP with tie bar) | 256-pin CQFP - same | 256-pin CQFP - same | 256-pin CQFP - same | 256-pin CQFP - same | 256-pin CQFP - same |
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108000 | 108000 | 108000 | 108000 | 54000 (36K gates) | 54000 (36K gates) |
| Logic Cells | 4024 | 4024 | 4024 | 4024 | 1800 | 1800 |
| Max Toggle Frequency | 217 MHz | 250 MHz (-1 speed grade) | 217 MHz class | 217 MHz class | 217 MHz class | 217 MHz class |
| Core Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Temperature Grade | Military (B) | Military | Military (M screening) | Commercial/Industrial | Military (B) | Military (M) |
| Programming | One-time programmable antifuse | OTP antifuse | OTP antifuse | OTP antifuse | OTP antifuse | OTP antifuse |
主な差別化要因
- Standard speed grade at lowest cost within the same footprint （vs A54SX72A-1CQ256B)
- Largest gate count available in the CQFP-256 footprint （vs A54SX32-CQ256B)
- Military B-grade hermetic ceramic packaging （vs A54SX72A-CQ256)
- Trade-off: OTP fabrication limits prototyping iterations （vs SRAM-based FPGAs)
設計ノート
The A54SX72A is one-time programmable: once antifuses are burned the device cannot be erased or reprogrammed. Complete functional simulation, timing closure at worst-case corners, and an engineering-lot prototype pass are mandatory before fuse programming of production units. Keep the generated fuse file under configuration management - a lost or corrupt fuse file cannot be recovered from a programmed device, since antifuse state is not readable back.
The 256-pin CQFP with tie bar has leads on all four sides; use the manufacturer-recommended land pattern and inspect with X-ray or AOI for solder bridges on the 0.5mm-class lead pitch typical of CQFP. The tie bar should be soldered or mechanically secured per the assembly drawing to prevent lead resonance in vibration environments. Provide solid ground planes under the package and decouple the 2.5V core with at least 10uF bulk plus 0.1uF ceramics at each supply corner (estimate; follow datasheet power section for exact counts).
Use the dedicated CLKA/CLKB global clocks and QCLK quadrant clocks for clock distribution rather than general routing - per Microchip application notes on A54SX72A quadrant clocks, this minimizes skew across the fabric. Register high-fanout control signals and pipeline long paths; antifuse routing is fixed after programming, so leave timing margin rather than relying on post-route optimization that would require reprogramming.
コンプライアンス情報
Military-grade hermetic ceramic CQFP product; RoHS/Pb status not stated in verified distributor data as of 2026-09-03. Confirm material declaration with Microchip before procurement.
