A54SX32-CQ256B - 48K Gate Military FPGA, 203 I/O | Microsemi
部品番号: A54SX32-CQ256B ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
A54SX32-CQ256B 概要
An FPGA (Field Programmable Gate Array) is a semiconductor device containing a matrix of configurable logic blocks and programmable interconnects that the designer programs to implement custom digital circuits. In the programmable-logic hierarchy, the A54SX32 belongs to the Actel SX antifuse FPGA family, positioned as a one-time-programmable (OTP), radiation-robust alternative to SRAM-based FPGAs. Because antifuse configuration is non-volatile and stored within the silicon, SX devices require no external configuration PROM and offer inherent resistance to configuration upset - key reasons they persist in aerospace and defense platforms.
Key features include 32K system gates with 2880 logic array blocks, a 0.35 um CMOS process, and system performance up to approximately 205 MHz. The dual-supply architecture operates core and I/O from 3V to 3.6V and 4.75V to 5.25V, supporting mixed 3.3V/5V system environments.
The C grade (military temperature) suffix of the -CQ256B version supports a junction temperature range of -55C to +125C, making it suitable for high-reliability defense, avionics, and space-adjacent industrial applications where commercial FPGAs cannot survive.
Typical applications include military avionics bus interfaces, radiation-tolerant satellite payload glue logic, secure weapons-system control logic, and industrial systems requiring 5V-tolerant I/O and OTP security.
Design consideration: antifuse FPGAs are one-time programmable - fix your design before programming, and budget die access for Libero/Designer toolchain flows during prototyping.
This page synthesizes distributor stock data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: A54SX32-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: A54SX32-CQ256B （同一形状・フットプリント） — 相違点: Package, Process Technology, Series, System Gates, Architecture.
クイック比較ツール — 並列比較する代替部品を選択:
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 →A54SX32-CQ256M
✅ ドロップイン ⚠️ 仕様未検証✓ 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 →A54SX32A-CQ256B
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
A54SX32-CQ256B 最大定格＆電気的特性
| System Gates | 48000 gates |
| Logic Array Blocks (LABs) | 2880 |
| User I/O | 203 |
| Maximum Toggle Frequency | 205 MHz |
| Supply Voltage (VCCI) | 3 V to 3.6 V |
| Supply Voltage (VCI) | 4.75 V to 5.25 V |
| Process Technology | 0.35 um CMOS |
| Series | SX (Actel SX) |
| Configuration Technology | Antifuse (one-time programmable) |
| パッケージ | 256-BFCQFP Exposed Pad and Tie Bar (75x75 mm) |
| 実装タイプ | Surface Mount |
| 動作温度 | -55C to +125C (TJ) |
| Temperature Grading | Military |
| Terminal Form | Flat |
| Terminal Count | 256 |
| Package Shape | Square (QFF package code) |
A54SX32-CQ256B square (qff package code) ピン配置ガイド
A54SX32-CQ256B (square (qff package code) 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: A54SX32-CQ256B.
詳細は データシート をご参照ください。
主な用途
A54SX32-CQ256B の用途: 6 件s: Military Avionics Bus Interfaces, Secure Defense System Control Logic, Industrial 5V Legacy System Retrofit, Test and Measurement Instrumentation, Communications and Networking Line Cards, Aerospace Ground Support Equipment.
Military Avionics Bus Interfaces
The A54SX32-CQ256B's -55C to +125C junction rating and hermetic ceramic CQFP package make it a natural fit for military avionics control and bus-interface logic, where commercial plastic-packaged FPGAs cannot survive thermal cycling. Its 203 user I/O supports wide parallel interfaces such as MIL-STD-1553 companion logic, ARINC 429 front-end buffering, and discrete I/O concentration. The dual-supply operation (3V-3.6V core, 4.75V-5.25V I/O rail) allows direct interfacing with legacy 5V avionics backplanes without level shifters. Because the antifuse configuration is stored in silicon, the bitstream cannot be corrupted by single events or power glitches - a critical reliability property in flight-critical platforms. Place the exposed thermal pad against a plated through-hole array to manage junction temperature near the +125C ceiling.
おすすめ
Secure Defense System Control Logic
Antifuse FPGAs are favored in defense control logic precisely because the A54SX32-CQ256B's configuration is burned into the silicon at programming time and cannot be read back, dumped, or altered. For weapons-system controllers, cryptographic auxiliary logic, and secure telemetry formatting, this OTP property eliminates the configuration-cloning attack surface that SRAM FPGAs carry. The 48,000 system gates and 2880 LABs accommodate state machines, counters, and interface glue logic of moderate complexity at toggle rates up to approximately 205 MHz. The military C-grade temperature range covers conduction-cooled chassis environments from -55C to +125C. Design teams should complete full simulation before programming, since there is no field rework path; keep a spare programmed population in storage for logistics sustainment.
おすすめ
Industrial 5V Legacy System Retrofit
Many industrial retrofits must integrate new logic into 5V backplanes and PLC racks designed decades ago. The A54SX32-CQ256B addresses this directly with its second supply rail accepting 4.75V to 5.25V, letting the FPGA's I/O drive and receive 5V logic levels without translators. Its 203 user I/O covers large parallel bus bridges, relay-control expansion, and sensor aggregation across the full -55C to +125C military range, comfortably exceeding industrial -40C to +85C requirements. The 256-pin ceramic CQFP, while premium in cost, provides mechanical robustness on vibration-prone factory floors. Designers should budget the dual-rail power architecture - a 5V rail plus a 3.3V regulator feeding the core - and verify that the CQFP land pattern on the retrofit PCB matches the 75x75 mm ceramic package footprint.
おすすめ
Test and Measurement Instrumentation
Bench and rack instrumentation benefits from the A54SX32-CQ256B's deterministic, configuration-immune logic for timing generators, trigger distribution, and bus interface functions. With system performance up to roughly 205 MHz, the SX architecture handles sub-10 ns timing resolution in counter/timer and pattern-generator roles. The 203 user I/O enables wide parallel pattern buses to DUT fixtures, and the dual-supply design (3.3V core, 5V I/O rail) connects cleanly to both modern and legacy instrument internals. Because antifuse configuration has zero startup configuration time - the design is live at power-up - instruments avoid the boot latency of SRAM FPGAs, an advantage for fast-trigger test sequences. The ceramic CQFP's exposed pad should be soldered to a generous ground pour to contain switching noise near sensitive analog measurement front ends.
おすすめ
Communications and Networking Line Cards
Legacy telecom and defense-communications line cards used SX-class FPGAs for framing, multiplexing, and backplane interface logic. The A54SX32-CQ256B's 48K gates implement HDLC controllers, T1/E1 framer glue, and parallel backplane interfaces at the moderate speeds those systems require, while 203 user I/O covers the wide data buses characteristic of parallel backplanes. The -55C to +125C rating supports outside-plant and unconditioned equipment-shelter deployments, and the hermetic ceramic package resists humidity and corrosive atmospheres better than plastic packages. The dual 3.3V/5V supply scheme matches the mixed-voltage backplanes common in installed base cards. For lifecycle management, note that the SX family is mature - new line-card designs should evaluate current Microchip FPGA families, while this part excels in sustaining existing deployed systems.
おすすめ
Aerospace Ground Support Equipment
Ground support and test equipment for aerospace programs must validate flight hardware across the same environmental extremes as flight, making the A54SX32-CQ256B's -55C to +125C capability and military screening a practical match without the cost of full space-grade silicon. Its antifuse configuration provides deterministic behavior during thermal-vacuum and hot/cold test campaigns - there is no risk of a configuration SEU invalidating a test run. The 203 user I/O drives large-scale umbilical and panel interfaces, and the dual-rail 3.3V/5V operation ties into mixed-era test-set electronics. The 75x75 mm ceramic CQFP with tie bar withstands repeated insertion-cycle mechanical stress on test fixtures. Designers should implement boundary-scan or built-in test logic within the 48K gates to streamline fixture self-test between campaigns.
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: A54SX32-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 | A54SX32-CQ256M | A54SX32-CQ256 | A54SX32A-CQ256B |
|---|---|---|---|---|
| Package | 256-BFCQFP (ceramic CQFP, 75x75 mm) | 256-CQFP - same footprint | 256-CQFP - same footprint | 256-CQFP - same footprint |
| Brand | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microsemi (Microchip Technology) | Microchip Technology |
| System Gates | 48,000 | 48,000 | 48,000 | 48,000 (SX-A die) |
| Supply Voltage | 3V-3.6V and 4.75V-5.25V | 3V-3.6V and 4.75V-5.25V | 3V-3.6V and 4.75V-5.25V | 3V-3.6V and 4.75V-5.25V |
| Temperature Range | -55C to +125C (TJ) | -55C to +125C (TJ) | -55C to +125C (TJ) | -55C to +125C (TJ) |
| Configuration Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
| Speed Grade / Screening | B suffix (military) | M suffix (military screening) | Standard speed grade | B suffix (SX-A family, higher performance) |
主な差別化要因
- Antifuse OTP configuration with zero boot latency （vs Intel/Xilinx SRAM FPGAs (functional alternatives only))
- Military -55C to +125C junction range in hermetic ceramic （vs A54SX32 plastic TQ176/PQ208 variants)
- Dual 3.3V/5V supply architecture with 203 user I/O （vs A54SX32A-CQ256B (SX-A family))
設計ノート
The A54SX32-CQ256B requires two supply rails: a core/I/O rail of 3V to 3.6V (typically 3.3V) and a second rail of 4.75V to 5.25V (typically 5V). Decouple each rail with bulk capacitance (10-47 uF) plus 0.1 uF ceramics at multiple package corners of the 75x75 mm CQFP. Estimated: antifuse FPGA static current is low, but dynamic current scales with clock frequency and toggle rate - budget supply rails using the Microchip Designer power estimator at your maximum 205 MHz operating frequency rather than assuming worst-case datasheet figures.
The military C-grade rating allows junction temperatures to +125C, but the ceramic CQFP's thermal resistance is high compared to modern flipped-chip packages. Estimated: with the exposed pad soldered to a multi-row via array into a ground plane, board-level heat spreading improves substantially; without it, junction-to-ambient resistance in still air limits sustained power dissipation. For conduction-cooled chassis, bond the tie bar and pad to the cold wall per MIL-STD-style card design. Verify junction temperature with a thermal model before committing to a -55C to +125C full-range qualification.
The most common pitfall with this device is treating it like an SRAM FPGA: it is one-time programmable. Any design change after programming requires a new physical part, so complete full functional and timing simulation in the Microchip Designer flow before committing. Second, the B and M suffixes define different speed/screening combinations - do not substitute A54SX32-CQ256M for CQ256B in a timing-critical path without re-running static timing analysis. Third, no cross-brand pin-compatible replacement exists; do not assume Intel/Xilinx parts can drop onto the same footprint.
コンプライアンス情報
This is a military-grade ceramic-packaged device (C grade, -55C to +125C); RoHS/REACH and lead-free status were not stated in the verified data and must be confirmed with the manufacturer for this legacy military product line.
