A54SX08-1FGG144 - 8K Gate FPGA, 144-FBGA | Microchip
MPN： A54SX08-1FGG144 ✓ 啟用中A54SX08-1FGG144 概覽
An antifuse FPGA is a field programmable gate array whose interconnect elements are one-time programmable (OTP) antifuse cells rather than SRAM configuration memory. Because there is no configuration bitstream to load at power-up, antifuse FPGAs are inherently instant-on, immune to configuration bit-stream corruption, and offer lower static configuration overhead than SRAM-based FPGAs. Within the programmable logic hierarchy, the SX family sits under the Actel/Microsemi (now Microchip) FPGA portfolio, alongside SX-A, eX, ProASIC, and RTAX space-grade families.
Key features of the A54SX08 include the highest logic density per I/O in its class at the time of introduction, a low-cost one-time-programmable fabric, FastConnect routing delivering 0.4 ns maximum pin-to-pin propagation on direct paths, and a 3.3V core with 5V-tolerant inputs. The -1 speed grade denotes the standard industrial performance bin of the family.
Architecturally, the SX family combines Combinatorial Modules (CMs) and Register Modules (RMs) arranged in clusters, connected by DirectConnect, FastConnect, and segmented/high-drive routing resources. This structure yields deterministic, short interconnect delays suited to high-speed state machines, sequencers, and glue logic. Because antifuse programming is permanent, the device resists reverse engineering better than SRAM alternatives.
Typical applications include aerospace and defense glue logic, industrial control sequencers, bus interface bridging, and legacy system life-cycle replacement where instant-on, single-chip configuration is required.
Design consideration: as an OTP device, functionality cannot be reprogrammed after assembly, so full post-layout timing verification is mandatory before programming. Antifuse programming yield should also be considered in production planning.
This page synthesizes distributor availability data, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing as of 2026-09-03 requires quotation from XAIPART.
直接替換替代品，適用於 A54SX08-1FGG144 — 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： A54SX08-1FGG144 （相同外形與佔位） — 差異在於 Family, Package, System Gates, Operating Temperature, Process Technology.
A54SX08-1FGG144I
✅ 直接替換聯絡詢價
查看資料表 →A54SX08-FGG144
✅ 直接替換聯絡詢價
查看資料表 →A54SX08-FGG144I
✅ 直接替換聯絡詢價
查看資料表 →A54SX08-2FGG144
✅ 直接替換聯絡詢價
查看資料表 →A54SX08-2FGG144I
✅ 直接替換聯絡詢價
查看資料表 →A54SX08A-1FGG144
✅ 直接替換📋 參考替代品（不在目錄中）
A54SX08-1FGG144 最大額定值與電氣特性
| Family | SX (Actel/Microsemi antifuse FPGA) |
| System Gates | 8000 |
| Logic Cells | 512 |
| Maximum Toggle/System Frequency | 280 MHz |
| User I/O | 111 |
| Process Technology | 0.35 um |
| Core Supply Voltage | 3.3 V |
| I/O Voltage | 3.3 V / 5 V tolerant |
| Speed Grade | -1 (standard) |
| Programmability | One-time programmable (antifuse) |
| 封裝 | 144-ball FBGA |
| 安裝類型 | Surface Mount |
| Lead Free | Yes |
| Minimum Pin-to-Pin Propagation (FastConnect) | 0.4 ns |
| 類別 | FPGA - Field Programmable Gate Array |
A54SX08-1FGG144 144-ball fbga 腳位配置指南
A54SX08-1FGG144（144-ball fbga 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： A54SX08-1FGG144.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX08-1FGG144 適用於 6 應用s: Aerospace & Defense Glue Logic, Industrial Control Sequencing, Legacy System Life-Cycle Extension, Bus Interface Bridging, Secure Design Implementation, High-Speed Logic Prototyping.
Aerospace & Defense Glue Logic
Antifuse FPGAs are a staple of aerospace and defense boards because one-time programming removes configuration-storage failure modes entirely - there is no bitstream flash to corrupt under radiation or power interruption. The A54SX08-1FGG144 fits board-level glue logic, address decoding, and bus-bridging roles where its 8K gates, 512 cells, and 111 user I/O cover typical interface functions. Its 3.3V core with 5V-tolerant I/O bridges legacy TTL signals without level translators. Placed as the sole programmable device, it is active within microseconds of power ramp. For radiation-critical missions, migrate to Microchip RTAX space-grade parts, retaining the same design toolchain and similar architecture.
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Industrial Control Sequencing
Industrial machines frequently need deterministic, instantly-active control sequencers that cannot wait for a configuration controller. The A54SX08-1FGG144 loads no bitstream at power-up because antifuse interconnect is permanent, so state machines begin operating immediately as supply rails stabilize. The 280 MHz family performance ceiling and 0.4 ns FastConnect pin-to-pin routing give ample timing margin for sequencer clocks and handshakes. The -1 speed grade keeps cost low while covering typical 25-50 MHz industrial control timing. Industrial temperature variants (A54SX08-1FGG144I) extend ambient ratings for factory-floor enclosures lacking active cooling.
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Legacy System Life-Cycle Extension
Mature platforms - medical devices, avionics LRUs, telecom shelves - were often designed around Actel SX FPGAs, and the original ASIC or discontinued support makes re-spin costly. The A54SX08-1FGG144 provides form-fit-function continuity: same 144-FBGA footprint, same 111 user I/O, same programming toolchain in Libero SoC. Because the SX08 die is one-time programmable, previously released fuse files remain valid for new silicon, eliminating re-verification of the programmed pattern. Sourcing through surplus-aware distributors mitigates end-of-life risk; speed-grade and temperature variants allow BOM consolidation across build configurations without layout changes.
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Bus Interface Bridging
The 5V-tolerant I/O of the A54SX08-1FGG144 allows direct interfacing with 5V TTL and LVTTL buses - a key advantage when bridging legacy VME, ISA-style, or parallel peripheral buses to modern 3.3V logic. With 111 user I/O available, the device can implement a full 32-bit address/data path plus control strobes in one chip. The segmented and high-drive routing resources of the SX architecture keep bus multiplexing delays predictable. Designers should budget I/O timing using the -1 grade datasheet columns, since bus turnaround and tri-state control paths typically traverse segmented routing rather than FastConnect direct paths.
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Secure Design Implementation
Antifuse FPGAs are inherently more resistant to design extraction than SRAM FPGAs because there is no configuration bitstream traveling on the PCB or stored in an external flash that can be intercepted. The A54SX08-1FGG144 therefore suits products with proprietary control logic, license enforcement, or anti-cloning requirements. Once programmed, the interconnect pattern is buried within the die and cannot be read back. Combined with instant-on operation, this makes the part a compact security element for industrial instruments and payment peripherals. Designers should still apply standard board-level anti-tamper measures since security is strongest in depth.
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High-Speed Logic Prototyping
For prototype builds requiring 200-280 MHz internal clocking without the complexity of SRAM FPGA configuration chains, the A54SX08-1FGG144 provides a one-chip deterministic fabric. The 0.4 ns FastConnect direct paths let critical carry chains and comparators meet tight timing budgets, while the -1 speed grade files provide conservative worst-case timing for sign-off in Actel/Microchip timing tools. Prototypers should note the OTP nature: each logic iteration consumes a fresh device, so schedule programming inventory accordingly; the TQFP-packaged siblings (e.g., A54SX08-TQG144I) ease socket-based bench iteration before committing FBGA assemblies.
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推薦產品摘要
工程參考資料，適用於 A54SX08-1FGG144 — 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 | A54SX08-1FGG144I | A54SX08-FGG144 | A54SX08-2FGG144 | A54SX08A-1FGG144 |
|---|---|---|---|---|---|
| Package | 144-FBGA | 144-FBGA - same | 144-FBGA - same | 144-FBGA - same | 144-LBGA - same ball count, SX-A family |
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microsemi Corporation |
| System Gates | 8K | 8K | 8K | 8K | 8K (SX-A) |
| User I/O | 111 | 111 | 111 | 111 | 111 |
| Speed Grade | -1 (standard) | -1 (standard) | standard binning | -2 (faster) | -1 (SX-A, higher base performance) |
| Family / Technology | SX, 0.35 um antifuse, OTP | SX, 0.35 um antifuse, OTP | SX, 0.35 um antifuse, OTP | SX, 0.35 um antifuse, OTP | SX-A, antifuse, OTP |
主要差異化特點
- Instant-on OTP operation with no configuration device (對比A54SX08A-1FGG144)
- Lower cost standard speed bin (對比A54SX08-2FGG144)
- Wider temperature coverage via industrial variant (對比A54SX08-1FGG144I)
設計說明
The A54SX08-1FGG144 is strictly one-time programmable. Complete full post-layout timing simulation and hardware emulation before programming any device, because a design change after programming requires a new IC. Estimate: if programming yield is 98% and your annual build is 1,000 units, procure roughly 1,020-1,050 devices to absorb programming losses and rework. Keep the released fuse file under version control tied to the PCB revision to prevent mis-programming of stocked inventory.
Provide a clean 3.3V core rail with local 0.1 uF ceramic decoupling on each supply ball plus a bulk 10 uF capacitor near the package. Because the device is instant-on with no configuration sequence, supply inrush consists only of static and switching current - no ramp-order programming constraints exist as in SRAM FPGAs, but 5V-tolerant inputs must not be driven before core power stabilizes; observe the datasheet's input-current clamp limits during hot-socket or early-rail conditions.
The 144-ball FBGA requires a controlled-assembly process: specify a 0.5 mm pitch stencil design with reduced apertures (approximately 80-90%) to prevent solder bridging, and use X-ray or scaled inspection on the underside array. Follow the Microchip SX family datasheet land-pattern recommendation exactly. If migrating to A54SX08A-1FGG144 (SX-A), re-verify the ball map against the SX-A package drawing before assuming footprint identity.
合規資訊
Distributor listings (PCB Electronics, Datasheet Directory) explicitly identify A54SX08-1FGG144 as LEAD FREE. Full REACH and conflict-minerals declarations were not present in the provided data.
