A54SX16-1TQG176I - 24K-Gate SX FPGA, TQFP-176 | Microchip
部品番号: A54SX16-1TQG176I ✓ 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 |
A54SX16-1TQG176I 概要
A field-programmable gate array (FPGA) is an integrated circuit that implements user-defined digital logic through a programmable interconnect fabric and configurable logic blocks. Within the programmable logic hierarchy, the SX family sits in the one-time-programmable (OTP) antifuse FPGA class: the architecture is fixed permanently at programming time, offering inherent resistance to configuration readback attacks, no external boot configuration memory requirement, and instant-on operation. The SX family's sea-of-modules architecture delivers high routing efficiency and performance for its generation, integrating many functions into a single low-cost chip.
Key features of the A54SX16-1TQG176I include 24,000 system gates with 1,452 LABs/CLBs, 147 user I/Os, dual 3.3V and 5.0V supply operation for legacy 5V system interfacing, industrial -40C to +85C operation, and the low-cost TQFP-176 package. The speed grade is -1, the slowest commercial grade in the family, suiting cost-driven designs rather than maximum-frequency pipelines. Logic capacity is implemented in Actel's module-based fabric, which yields high effective gate utilization compared with SRAM FPGAs of the same era.
Technically, the SX family uses a 0.35um antifuse process with a sea-of-modules architecture in which logic modules are surrounded by abundant routing tracks, simplifying place-and-route and shortening design cycles. Because configuration is stored in antifuses rather than SRAM cells, the device requires no configuration PROM and is immune to configuration upset from radiation-induced bit flips in the configuration memory - a classic reason for selecting Actel parts in aerospace-adjacent and high-reliability industrial designs.
Typical applications include industrial control and automation glue logic, legacy 5V bus interface bridging, communication equipment control planes, and defense/hi-rel system support logic where OTP security and instant-on boot matter.
Design consideration: budget static and dynamic power carefully, as antifuse FPGAs dissipate standby power on dual rails; and verify the -1 speed grade timing in Libero/Microchip design software before committing the pinout.
This page synthesizes distributor inventory data, pricing context, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: A54SX16-1TQG176I — 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: A54SX16-1TQG176I （同一形状・フットプリント） — 相違点: System Gates, Package, Operating Temperature, RoHS Status, Family.
クイック比較ツール — 並列比較する代替部品を選択:
A54SX16-2TQG176
✅ ドロップイン✓ 在庫あり
$339.14 / 個
データシートを見る →A54SX16-1TQG176
✅ 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 →A54SX16-TQG176I
✅ 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 →A54SX16-1TQ176I
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
A54SX16-2TQG176I
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$20.8 / 個
データシートを見る →A54SX16-1TQG176I 最大定格＆電気的特性
| Manufacturer Part Number | A54SX16-1TQG176I |
| Product Family | SX (Actel antifuse FPGA) |
| System Gates | 24000 gates |
| LABs/CLBs | 1452 |
| User I/Os | 147 |
| Supply Voltage (Core/IO) | 3 V to 3.6 V |
| Supply Voltage (Second Rail) | 4.75 V to 5.25 V |
| Operating Supply Voltage (typical) | 3.3 V, 5 V |
| Speed Grade | -1 |
| 動作温度 | -40C to +85C (TA) |
| パッケージ / ケース | 176-LQFP / TQFP-176 (24x24 mm) |
| 実装タイプ | Surface Mount (SMD/SMT) |
| Programming Technology | Antifuse (one-time programmable) |
| Packaging | Tray |
| RoHS ステータス | ROHS3 Compliant, Lead Free |
| Product Status | Active |
| Manufacturer Lead Time | 10 weeks |
A54SX16-1TQG176I 176-lqfp / tqfp-176 (24x24 mm) ピン配置ガイド
A54SX16-1TQG176I (176-lqfp / tqfp-176 (24x24 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: A54SX16-1TQG176I.
詳細は データシート をご参照ください。
主な用途
A54SX16-1TQG176I の用途: 6 件s: Industrial Control and Automation, Legacy 5V System Interface Bridging, High-Reliability and Security-Oriented Logic, Communication Equipment Control Plane, Obsolete CPLD/PAL Logic Consolidation, Test and Measurement Instrument Logic.
Industrial Control and Automation
The A54SX16-1TQG176I fits industrial control and factory automation systems where deterministic, instantly-available logic is required at power-up and the operating environment spans -40C to +85C. Its 24,000 system gates and 147 user I/Os provide ample capacity for PLC I/O mapping, encoder interface decoding, and interlock logic, while the industrial temperature grade removes the need for convection-controlled cabinets. The dual supply architecture (3.0-3.6V core/IO with 4.75-5.25V rail) lets designers bridge legacy 5V sensor and actuator signaling to 3.3V subsystems on a single chip, replacing multiple discrete glue-logic devices. Because configuration is stored in antifuses, there is no configuration PROM to fail in high-vibration machinery, improving MTBF. Design the I/O for the -1 speed grade timing and confirm worst-case setup/hold in Libero static timing analysis before freezing the PCB.
おすすめ
Legacy 5V System Interface Bridging
Many installed systems still run 5V TTL or 5V CMOS buses, and the A54SX16-1TQG176I's second supply rail (4.75V to 5.25V) makes it one of the few still-active FPGAs that can live natively in such environments. The 147 user I/Os assigned to the 5V-tolerant bank can directly terminate 5V signals, level-translate to the 3.0-3.6V core domain, and implement bus arbitration, address decoding, and wait-state generation for legacy backplanes. Compared with discrete level-shifters and PAL/GAL devices, one SX16 integrates the translation plus the logic, cutting board area and inventory. Verify the exact 5V input thresholds in the 54SX datasheet DC characteristics for your VCCI corner, and add series termination on long backplane traces to control reflections, since the -1 grade output edges are fast enough to matter even in 5V systems.
おすすめ
High-Reliability and Security-Oriented Logic
The A54SX16-1TQG176I suits high-reliability control logic because its antifuse configuration is one-time-programmable: there is no configuration bitstream in external flash to read, clone, or corrupt, and no configuration upset from single-event effects on SRAM configuration cells. This is the classic Actel argument for defense-adjacent, avionics support, and secure industrial equipment. The 24K-gate capacity covers checksum engines, secure key-handling support logic, voter circuits, and watchdog/monitoring functions. The industrial -40C to +85C grade covers most harsh environments, and for full space qualification Microchip's RTAX family on the same antifuse heritage is the upgrade path (e.g., RTAX2000S devices). Note that antifuse programming is irreversible - hold design reviews before tape-out of the programming file, and purchase programmer-supported speed grades consistent across the build to keep lot timing uniform.
おすすめ
Communication Equipment Control Plane
In telecom and networking line cards, the A54SX16-1TQG176I implements the non-time-critical control plane: backplane ID coding, LED driving, fan monitoring, hot-swap state machines, and MAC/PHY management interfaces such as MDIO. Its instant-on antifuse boot means the FPGA is functional the moment power arrives - valuable for power-good sequencing and fault reporting before a host processor loads software. With 147 I/Os, one device absorbs the many small control signals that would otherwise consume a CPLD plus discrete logic. The 3.0-3.6V rail matches standard card logic while the 4.75-5.25V rail serves legacy shelf hardware. Designers should budget standby power across both rails in rack-level thermal calculations and keep JTAG access on the 176-TQFP dedicated pins for field diagnostics even though reprogramming is not possible.
おすすめ
Obsolete CPLD/PAL Logic Consolidation
A common retrofit task is consolidating dozens of aging 22V10 PALs, GALs, or EPM7000-style CPLDs that are end-of-life. The A54SX16-1TQG176I's 1,452 LAB/CLB capacity and 24K gates absorb multiple such devices while its dual-rail operation eases integration into older boards that mix 5V and 3.3V domains. Consolidation reduces component count, improves timing consistency between formerly separate devices, and removes sourcing risk from multiple obsolete SKUs. Map each legacy device into a Libero project, run timing at the -1 grade, and pay special attention to asynchronous paths such as reset distribution, which the antifuse fabric routes with different delays than the original devices. Because programming is one-time, validate the consolidated design in simulation thoroughly before committing hardware; keep the A54SX16-2TQG176 as a same-footprint timing upgrade if margins are tight.
おすすめ
Test and Measurement Instrument Logic
Bench and rack instruments benefit from the A54SX16-1TQG176I as a sequencer, trigger-logic engine, and interface bridge. The 24K-gate fabric implements trigger state machines, timebase gating, and pattern generation for custom test fixtures, while the 147 I/Os connect to front-panel controls, relay banks, and measurement front ends. Instant-on antifuse configuration means the instrument is ready the moment mains power is applied - no boot delay that customers perceive as sluggishness. The industrial temperature rating supports uncooled rack environments, and the TQFP-176's 0.5mm pitch keeps assembly on standard SMT lines. For timing-critical paths, remember the -1 grade is the slowest SX16 option; static timing analysis in Libero against the 3.3V commercial corner should be completed before the test-firmware team locks external timing assumptions.
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: A54SX16-1TQG176I — 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 | A54SX16-2TQG176 | A54SX16-1TQG176 | A54SX16-TQG176I |
|---|---|---|---|---|
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-176 (24x24 mm) | TQFP-176 (24x24 mm) - same | TQFP-176 (24x24 mm) - same | TQFP-176 (24x24 mm) - same |
| System Gates | 24000 | 24000 | 24000 | 24000 |
| User I/Os | 147 | 147 | 147 | 147 |
| Operating Temperature | -40C to +85C (I grade) | 0C to +70C (commercial) | 0C to +70C (commercial) | -40C to +85C (I grade) |
| Supply Voltage | 3V-3.6V, 4.75V-5.25V | 3V-3.6V, 4.75V-5.25V | 3V-3.6V, 4.75V-5.25V | 3V-3.6V, 4.75V-5.25V |
| RoHS / Lead Free | ROHS3 Compliant, Lead Free | ROHS3 Compliant (G suffix) | ROHS3 Compliant (G suffix) | Lead Free / RoHS Compliant |
主な差別化要因
- Industrial temperature range for harsh environments （vs A54SX16-1TQG176)
- Lowest-cost speed grade with upgrade path （vs A54SX16-2TQG176)
- Dual-rail 5V compatibility increasingly rare in FPGAs （vs A54SX16-TQG176I variants and modern SRAM FPGAs)
設計ノート
The A54SX16-1TQG176I requires two supply rails: 3.0V-3.6V (3.3V nominal) and 4.75V-5.25V (5.0V nominal). Verify rail sequencing requirements in the 54SX datasheet power-up section, as Actel antifuse FPGAs of this era specify which rail must arrive first and ramp-rate limits. Decouple each rail with bulk capacitance plus 0.1uF ceramics distributed across the four VCC pin groups of the 176-TQFP. Budget static power for both rails continuously, since antifuse FPGAs draw standby current from power-on - important in battery-backed and always-on industrial equipment.
Antifuse programming is permanent - there is no rework path. Complete full simulation, static timing analysis at the -1 speed grade across voltage and temperature corners, and design review before generating the programming file. The -1 grade is the slowest SX16 speed grade; if timing margins are under 20%, plan a same-footprint -2 variant (e.g., A54SX16-2TQG176) as contingency. Also, the commercial-grade variants (A54SX16-1TQG176, A54SX16-2TQG176) are rated 0C to +70C and must not be substituted into the industrial -40C to +85C application of the -I part.
The TQFP-176 has 0.5mm lead pitch with leads on all four sides of the 24x24 mm body. Use a courtyard footprint matching the datasheet mechanical drawing, fan out with 0.2-0.25mm traces and thermal reliefs on ground connections. Inspect with X-ray or AOI for solder bridging, a common defect on 0.5mm-pitch QFPs. Keep high-speed I/O stubs short and add series resistors (22-33 ohm) on long or backplane-routed signals to control ringing; the 5V-tolerant bank used for legacy interfaces should follow the same SI rules as the 3.3V bank.
Since the device requires no external configuration PROM, reserve board area for a JTAG header on the dedicated programming pins for production programming and boundary-scan test. Actel Designer supports pin assignment locking; lock your pinout early and re-run timing after every routing change, because antifuse routing delay varies with route length and the final programmed netlist is what matters, not the post-synthesis estimate.
コンプライアンス情報
ROHS3 Compliant and lead free per Microchip USA and Newark product data (G suffix = lead-free/green package). REACH, halogen-free, and conflict-minerals status not stated in the reviewed data.
