A54SX72A-1CQ256M - 108K Gate Antifuse FPGA, 2.5V | Microchip
部品番号: A54SX72A-1CQ256M ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $8 | $8.00 |
| 10 | $7.6 | $76.00 |
| 100 | $7.2 | $720.00 |
| 500 | $6.8 | $3,400.00 |
| 1,000 | $6.4 | $6,400.00 |
A54SX72A-1CQ256M 概要
An antifuse FPGA is a type of field-programmable gate array in which the interconnect is permanently configured at programming time by blowing microscopic antifuse links. Unlike SRAM-based FPGAs, antifuse devices retain their configuration through power cycles without any external boot memory, offer lower static power, and provide higher resistance to configuration readback - a key advantage in security-conscious and high-reliability systems. Within the programmable logic hierarchy, the SX-A family sits under Actel-origin (now Microchip) antifuse FPGAs, positioned as low-cost, single-chip integration solutions.
Key features of the A54SX72A include a 0.25 um process technology, multiple global and quadrant clock networks (CLKA, CLKB, and QCLK resources), and speeds up to 250 MHz as reported for the -1 speed grade. The M suffix in the MPN denotes a moisture-sensitive/lead-free commercial qualification variant of the ceramic quad flat pack.
Architecturally, the device uses Actel's multiplexer-based combinatorial logic cells organized into clusters, with four layers of metal interconnect routing resources located between the top two metal layers for efficient silicon use, as described in the SX-A family datasheet. Dedicated quadrant clocking in the 72K-gate A54SX72A supports multiple independent clock domains.
Typical applications include glueless bus-interface integration, industrial control, communications line cards, test equipment, and defense/aerospace systems requiring one-time-programmable, configuration-store-free logic.
Designers should note the commercial operating range of 0C to +70C and plan the 2.5V core rail accordingly; once programmed, the antifuse fabric cannot be reprogrammed, so design verification must be complete before device programming.
This page synthesizes distributor pricing context, drop-in alternatives within the same 256-pin CQFP footprint, and design notes not found in the manufacturer datasheet.
ドロップイン代替品: A54SX72A-1CQ256M — 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-1CQ256M （同一形状・フットプリント） — 相違点: Package, Family, System Gates, Process Technology, User I/O.
クイック比較ツール — 並列比較する代替部品を選択:
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-CQ256B
✅ ドロップイン✓ 在庫あり
$228 / 個
データシートを見る →A54SX72A-CQ256
✅ ドロップイン✓ 在庫あり
$196 / 個
データシートを見る →A54SX32A-CQ256M
✅ ドロップイン📋 参考代替品（カタログ未掲載）
A54SX32A-CQ256B
✅ ドロップイン📋 参考代替品（カタログ未掲載）
A54SX32A-CQ256
✅ ドロップイン📋 参考代替品（カタログ未掲載）
A54SX72A-1CQ256M 最大定格＆電気的特性
| Family | SX-A (Actel/Microchip antifuse FPGA) |
| System Gates | 108000 |
| Raw Gates | 72000 |
| Logic Cells | 4024 |
| User I/O | 213 |
| 電源電圧 | 2.5 V |
| Process Technology | 0.25 um |
| Maximum Toggle Rate | 250 MHz (-1 speed grade, per FPGAkey listing) |
| Speed Grade | -1 |
| パッケージ | 256-BFCQFP with Tie Bar (CQFP, 75x75 mm) |
| 実装タイプ | Surface Mount |
| 動作温度 | 0C to +70C (TA, commercial) |
| Programming Type | One-Time Programmable (Antifuse) |
| Configuration Memory | None required (nonvolatile antifuse) |
A54SX72A-1CQ256M 256-bfcqfp with tie bar (cqfp, 75x75 mm) ピン配置ガイド
A54SX72A-1CQ256M (256-bfcqfp with tie bar (cqfp, 75x75 mm) 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-1CQ256M.
詳細は データシート をご参照ください。
主な用途
A54SX72A-1CQ256M の用途: 6 件s: Industrial Control and Automation, Defense and Aerospace Glue Logic, Communications Line Cards, Test and Measurement Equipment, Secure Embedded Systems, Legacy System Life Extension.
Industrial Control and Automation
The A54SX72A-1CQ256M integrates PLC I/O decoding, bus bridges, and sequencing logic that would otherwise occupy dozens of discrete 74xx devices, delivering system-wide cost savings in a single 2.5V chip. Its 213 user I/O pins absorb parallel fieldbus, encoder, and relay-control signals, while the antifuse fabric is immune to configuration upsets from industrial EMI because no external configuration memory exists to corrupt. The ceramic 256-BFCQFP-with-tie-bar package withstands vibration and thermal cycling better than plastic quad packs. At 4,024 cells and quadrant clocking, typical control state machines, counters, and interlocks fit with margin; the one-time-programmable flow suits fixed-function equipment where field reconfiguration is never required.
おすすめ
Defense and Aerospace Glue Logic
Military programs specify the ceramic 256-BFCQFP-with-tie-bar package for hermetic sealing, and the SX-A antifuse fabric provides instant-on behavior with no bitstream to intercept, read back, or corrupt during power-up - a recognized security advantage. The A54SX72A's 108K system gates consolidate backplane interfaces, memory decode, and protocol adaptation across the 213 I/O. Four quadrant/global clock networks (CLKA, CLKB, QCLK) independently clock radar timing, telemetry, and bus domains. Designers needing full space qualification should evaluate Microchip's HiRel RT54SX72S, which shares the SX-A architecture; the -1CQ256M targets ground-based and avionic-level equipment within 0C to +70C.
おすすめ
Communications Line Cards
Telecom and datacom line cards benefit from the A54SX72A-1CQ256M's ability to merge framing logic, framer glue, backplane drivers, and LED/status decode into one low-power 2.5V device, cutting BOM count and board area on dense cards. With toggle rates up to 250 MHz for the -1 speed grade, the device handles T1/E1-class and parallel backplane timing, while the 213 I/O pins terminate multiple line interfaces simultaneously. Antifuse programming eliminates configuration-boot latency, so cards reach traffic-carrying state immediately at power-up - valuable in redundant, hot-swappable shelves. The ceramic CQFP also improves thermal robustness in unventilated outdoor cabinets where plastic packages would age faster.
おすすめ
Test and Measurement Equipment
Bench and automated test instruments use the A54SX72A-1CQ256M as fixed-function timing generators, pattern decoders, and instrument backplane controllers. The -1 speed grade supports clock rates up to 250 MHz for counter/timer paths, and the one-time-programmable fabric guarantees deterministic, jitter-free behavior across the instrument's service life - no accidental reconfiguration from power glitches. Its 213 I/O accommodate relay matrix control, multi-channel compare, and front-panel interfaces, while four clock networks separate measurement, communication, and UI domains cleanly. The 75x75 mm ceramic CQFP dissipates heat across a large footprint, simplifying thermal design in enclosed instruments without forced airflow.
おすすめ
Secure Embedded Systems
Where design IP protection matters, the A54SX72A-1CQ256M's antifuse architecture prevents bitstream extraction entirely: once programmed, the fuses are physically blown and invisible to any readback mechanism, unlike SRAM FPGAs whose configuration lives in external flash. This makes the part suitable for license-key controllers, encryption glue, copy-protection logic, and authentication front-ends. Instant-on operation means security logic is active before a host processor completes boot, closing race-condition windows. The 108K-gate capacity runs AES-class wrappers and interface state machines; the 2.5V supply and 0C to +70C commercial range suit embedded appliances rather than extended-temperature deployments, for which I-suffix family members are preferred.
おすすめ
Legacy System Life Extension
Programs originally built around Actel SX-A devices face component obsolescence risk decades before their platform life ends. The A54SX72A-1CQ256M and its same-footprint CQ256 siblings let sustainment teams re-populate unchanged 256-pin CQFP land patterns with fresh Microchip stock, preserving original netlists programmed through the same Libero toolchain and Silicon Sculptor programmers. Because the antifuse fabric never degrades and the die is unchanged across CQ256M/CQ256B/CQ256 suffixes, qualification deltas are limited to speed-grade timing verification. Procurement via DigiKey, Mouser, and Microchip USA as of 2026-09-03 remains viable, and Octopart aggregates broker stock for allocated quantities.
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-1CQ256M — 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-CQ256M | A54SX72A-CQ256B | A54SX72A-CQ256 | A54SX32A-CQ256M | A54SX32A-CQ256 |
|---|---|---|---|---|---|---|
| Package | 256-CQFP (BFCQFP with tie bar, 75x75 mm) | 256-CQFP - same | 256-CQFP - same | 256-CQFP - same | 256-CQFP - same | 256-CQFP - same |
| Brand | Microchip Technology (Actel legacy) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108000 | 108000 | 108000 | 108000 | 36000 | 36000 |
| Logic Cells | 4024 | 4024 | 4024 | 4024 | 1968 | 1968 |
| Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Configuration | Antifuse OTP, no external memory | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP |
主な差別化要因
- Fastest CQ256 speed grade in the 72K family （vs A54SX72A-CQ256M)
- Quadruple logic capacity in identical footprint （vs A54SX32A-CQ256M)
- Hermetic ceramic package with tie bar （vs A54SX72A-1FG256M (plastic FG256))
設計ノート
Power the A54SX72A-1CQ256M core and I/O from a clean 2.5V rail within the SX-A datasheet DC tolerance window. Estimated: at 4,024 cells with moderate toggle activity, core current typically stays well below the family maximum, but peak inrush during programming must come from the programmer - ensure the Silicon Sculptor fixture supply meets its specification. Place bulk 10 uF plus 0.1 uF decoupling at each power/ground pin pair around the 75x75 mm CQFP perimeter; the large package spreads pins widely, so distributed decoupling matters more than for small QFPs.
The 256-BFCQFP with tie bar uses a 75x75 mm ceramic body with leads on all four sides plus a mechanical tie bar. Verify your land pattern against the Microchip package drawing before layout - CQFP lead-form tolerance differs from plastic PQFP footprints. The tie bar must be soldered or mechanically anchored per the drawing to meet vibration and thermal-cycling requirements in harsh-environment builds. Use a 0.5 mm-pitch-compatible stencil and inspect with X-ray or angled AOI, since CQFP gullwing leads hide solder voids beneath the ceramic body.
The antifuse fabric is one-time programmable: a design that fails post-programming verification consumes the device. Complete full timing simulation in Microchip Libero, verify all quadrant clock assignments (CLKA, CLKB, QCLK resources for the A54SX72A per the SX-A datasheet), and only then program. Also remember the commercial 0C to +70C rating - substituting this part into an extended-temperature design without selecting an I-suffix variant is a common field failure. Keep the -1 speed grade timing margin when swapping to base-grade A54SX72A-CQ256M.
With 213 I/O on a 0.25 um, 2.5V process, simultaneous switching output (SSO) noise is the main integrity risk when driving wide parallel buses. Group high-toggle-count outputs near dedicated power/ground pin pairs and stagger output switching where possible. Series-terminate long traces (typically 22-47 ohm, estimated from standard 2.5V CMOS driver practice) rather than relying on the board's load capacitance. Assign quadrant clocks so each 25%-region's local routing is not oversubscribed, as recommended in Microchip's A54SX72A quadrant clock application notes.
コンプライアンス情報
FindIC lists 'Non-Compliant' lead-free status fields for comparison entries, but no authoritative compliance data for A54SX72A-1CQ256M was present in the verified web data; confirm with Microchip product compliance documentation before export or RoHS-sensitive builds.
