A54SX72A-1FG484M - 108K-Gate Antifuse FPGA 484-BGA | Microchip
MPN： A54SX72A-1FG484M ✓ 啟用中A54SX72A-1FG484M 概覽
An antifuse FPGA is a type of field-programmable gate array in which the interconnect is programmed permanently by blowing microscopic antifuse links at power-programming time. Unlike SRAM-based FPGAs from the broader programmable logic family, antifuse devices are non-volatile, configuration is retained without an external boot flash, and the programmed connections are inherently resistant to readout, making this programmable logic category attractive for secure, single-chip integration in defense, avionics, and industrial systems.
Key differentiating specifications include 0.25 um / 0.22 um CMOS antifuse process technology, support for 2.5 V, 3.3 V, and 5 V I/O signaling on a 2.5 V core supply, and the -1 speed grade within the SX-A speed family. The device supports up to 100% resource utilization and 100% pin locking with deterministic, user-controllable timing, which simplifies timing closure at high logic occupancy.
Architecturally, the SX-A fabric is organized as a sea-of-modules with 6,036 combinatorial logic cells (CLBs per FindIC cross-reference data) and dedicated registers, delivering predictable routing delays because antifuse interconnect is fixed once programmed. Security features include Actel Secure Programming Technology with FuseLock, which prevents reverse engineering of the programmed design, and boundary-scan testing in compliance with IEEE 1149.1 (JTAG). In-system diagnostic and verification is performed with the Silicon Explorer II tool.
Typical applications include military and avionics glue-logic integration, secure industrial control, communications bridging, and legacy socket maintenance where a non-volatile, single-chip solution replaces multiple MSI/LSI devices.
Design consideration: because antifuse programming is one-time and irreversible, verify the full netlist in simulation and with Silicon Explorer II diagnostics before committing the device; the -1 speed grade limits timing headroom versus the faster -2 grade.
This page synthesizes distributor pricing context, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 A54SX72A-1FG484M — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： A54SX72A-1FG484M （相同外形與佔位） — 差異在於 RoHS Status, Package, Process Technology, System Gates, Operating Temperature.
A54SX72A-1FGG484M
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-FGG484M
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →A54SX72A-2FG484
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →A54SX72A-FG484I
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →A54SX72A-FFG484
✅ 直接替換 ⚠️ 規格未經驗證聯絡詢價
查看資料表 →A54SX72A-1FG484M 最大額定值與電氣特性
| Family | SX-A (Antifuse FPGA) |
| System Gates | 108,000 |
| Logic Cells | 6,036 CLBs / 4,024 cells |
| Number of I/Os | 360 |
| Maximum System Frequency | 250 MHz |
| Core Supply Voltage | 2.5 V |
| I/O Supply Voltages Supported | 2.5 V, 3.3 V, 5 V |
| Process Technology | 0.25 um / 0.22 um CMOS antifuse |
| Speed Grade | -1 |
| 工作溫度範圍 | -55C to +125C |
| 封裝 / 外殼 | 484-ball FBGA (484-BGA) |
| Ball Pitch | 1 mm |
| 安裝方式 | SMD/SMT |
| Packaging | Tray |
| JTAG Boundary Scan | IEEE 1149.1 compliant |
| Security Feature | Actel Secure Programming Technology with FuseLock |
| RoHS 狀態 | RoHS compliant |
A54SX72A-1FG484M 484-ball fbga (484-bga) 腳位配置指南
A54SX72A-1FG484M（484-ball fbga (484-bga) 封裝）的腳位配置。 此數位 IC 包含 GPIO、通訊介面（UART、SPI、I2C）與電源腳位。替代腳位功能與配置選項請參閱製造商資料表。對嵌入式系統設計與 PCB 佈局至關重要。
無詳細腳位定義資料： A54SX72A-1FG484M.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX72A-1FG484M 適用於 6 應用s: Military Glue Logic Integration, Avionics Control and Data Handling, Secure Industrial Control, Communications Bridging and Protocol Conversion, Legacy Socket Maintenance and Obsolescence Bridge, Test and Measurement Instrument Logic.
Military Glue Logic Integration
The A54SX72A-1FG484M fits military board-level integration because its -55C to +125C M temperature grade and non-volatile antifuse fabric survive harsh platform environments without configuration devices. With 108,000 system gates and 360 I/Os, a single device replaces dozens of discrete MSI/LSI glue-logic packages, reducing component count, board area, and failure points on ruggedized VME or VPX cards. Deterministic, user-controllable post-programming timing lets designers close timing at 100% resource utilization and 100% pin locking, while IEEE 1149.1 JTAG boundary scan supports production test of densely populated military assemblies. Estimated power on a 2.5 V core keeps thermal design simple in conduction-cooled enclosures.
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Avionics Control and Data Handling
Avionics subsystems benefit from the A54SX72A-1FG484M's combination of fixed antifuse interconnect, which eliminates configuration upsets from a missing or corrupted bitstream at power-up, and FuseLock secure programming technology that prevents reverse engineering of flight-critical designs. The 250 MHz system performance and deterministic routing support bus interface logic, discrete-to-digital conversion, and arbitration functions between MIL-STD-1553, ARINC-class, and custom serial links. The 484-ball 1 mm FBGA provides high I/O density (360 signals) for backplane interfaces in a compact SMD footprint rated to +125C junction-class operation. In-system verification via Silicon Explorer II supports DO-254-adjacent verification workflows with observable programmed netlists.
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Secure Industrial Control
In industrial control equipment where firmware IP protection matters, the A54SX72A-1FG484M's Actel Secure Programming Technology with FuseLock prevents readout of the programmed netlist, a protection class SRAM FPGAs cannot match without additional security silicon. The device's tolerance of 5 V, 3.3 V, and 2.5 V I/O signaling allows direct interfacing with legacy 5 V PLC backplanes as well as modern 3.3 V sensors, reducing level-shifting circuitry. Its 108K gates accommodate state machines, counters, and bus bridges for motion control and process I/O. Non-volatility removes boot-flash failure modes in electrically noisy factory environments, improving availability of deployed control nodes.
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Communications Bridging and Protocol Conversion
The A54SX72A-1FG484M serves communications equipment as a protocol bridge: 360 user I/Os and 250 MHz system performance handle multi-bank 2.5 V / 3.3 V / 5 V interfacing between backplanes, line cards, and legacy TTL-level peripherals. Deterministic antifuse routing gives fixed latency through the fabric once programmed, which matters for framing, multiplexing, and time-slot interchange logic where jitter budget is fixed. At 108K gates the device fits TDM switch matrices, serial-to-parallel framers, and bus arbiters in a single 484-ball FBGA, cutting board area versus multi-chip solutions. IEEE 1149.1 boundary scan enables high-coverage production test of dense telecom line-card assemblies.
推薦
Legacy Socket Maintenance and Obsolescence Bridge
Programs sustaining legacy defense and industrial platforms use the A54SX72A-1FG484M to bridge discontinued ASSP and ASIC sockets: the SX-A family's long production history and Microchip's continued listing of the full speed/package/temp matrix (documented across the DigiKey and Mouser catalogs) provide a stable resupply path. Because the die is shared across all A54SX72A package options, a design qualified in the 484-ball FBGA can migrate to FGG lead-free or I-temp variants without board redesign, preserving second-source flexibility. Storing the antifuse programming file with Silicon Explorer II verification data enables repeat manufacture of exact functional equivalents decades after first deployment.
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Test and Measurement Instrument Logic
Instrument makers deploy the A54SX72A-1FG484M for deterministic control logic in test fixtures and measurement front ends, where fixed post-programming routing timing simplifies trigger-path delay budgets compared with reconfigurable SRAM fabrics. The 108K-gate capacity integrates timing generators, sample-control sequencers, and bus interfaces to GPIB-class or embedded hosts, while 360 I/Os fan out to relay drivers, comparators, and DAC control lines. The -55C to +125C range and non-volatile configuration support portable and rack instruments that must power up instantly into a known-good configuration. Boundary-scan JTAG coverage accelerates ICT fixture development for densely populated analog/digital hybrid boards.
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推薦產品摘要
工程參考資料，適用於 A54SX72A-1FG484M — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | A54SX72A-1FGG484M | A54SX72A-FGG484M | A54SX72A-2FG484 | A54SX72A-FG484I |
|---|---|---|---|---|---|
| Package | 484-ball FBGA (1 mm pitch) | 484-ball FBGA - same | 484-ball FBGA - same | 484-ball FBGA - same | 484-ball FBGA - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108,000 | 108,000 | 108,000 | 108,000 | 108,000 |
| Speed Grade | -1 | -1 | Standard | -2 (faster) | Standard |
| User I/Os | 360 | 360 | 360 | 360 | 360 |
| Core Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Operating Temperature | -55C to +125C (Military) | Military grade (M) | Military grade (M) | Commercial/Extended | Industrial (-40C to +100C) |
主要差異化特點
- Military temperature grade in identical footprint (對比A54SX72A-FG484I)
- Faster timing option without re-layout (對比A54SX72A-2FG484)
- Lead-free process compatibility via G-suffix variant (對比A54SX72A-1FGG484M)
設計說明
Design the power tree around a regulated 2.5 V core rail plus bank-selected I/O rails of 2.5 V, 3.3 V, or 5 V, per SX-A product data. Antifuse devices draw no configuration current at power-up because the interconnect is hard-wired, so inrush is dominated by I/O charging; sequence I/O rails with the core to avoid bus contention. Estimated: with 360 I/Os switching, budget decoupling of bulk plus 0.1 uF ceramic caps per power bus group, and confirm exact ICC numbers against the SX-A datasheet power tables before finalizing the regulator sizing.
Antifuse programming is one-time and irreversible. Never commit a device before completing post-route timing simulation and Silicon Explorer II in-system verification, because a mis-timed -1 speed-grade design cannot be reworked - the part is a consumable. Also mind the speed-grade suffix on your PO: -1, -2, F, and standard-grade parts share the identical 484-ball footprint, and a faster grade is a safe substitute, but a slower or wrongly temp-graded part is not. Double-check the FG versus FGG ball finish against your soldering process.
The 484-ball 1 mm-pitch FBGA requires a controlled-impedance stack and via-in-pad or dog-bone fanout; plan signal layers so that the 360 user I/Os escape without crosstalk-critical buses sharing neck channels. Follow Actel/Microchip PBGA land-pattern and fanout guidance in the SX-A datasheet's PCB design section, and keep programming-access pins (VPP/VCI class rails) routed to a programming header even if unused in operation. IEEE 1149.1 JTAG chain access (TDI, TDO, TMS, TCK) should reach a test connector for production boundary scan.
合規資訊
FindIC lists A54SX72A-1FG484M as ROHS COMPLIANT, PBGA484, 1 mm pitch. REACH, halogen-free, and conflict-minerals status not stated in retrieved data. For lead-free reflow process compatibility, use the GG (lead-free fine-pitch) variants such as A54SX72A-1FGG484M.
