A54SX16A-2PQG208I - 24k-Gate Antifuse FPGA, PQFP-208 | Microchip
MPN： A54SX16A-2PQG208I ✓ 啟用中A54SX16A-2PQG208I 概覽
A field-programmable gate array (FPGA) is a semiconductor device containing configurable logic blocks (CLBs) and programmable interconnects that the designer wires together after manufacturing. Unlike SRAM FPGAs, the SX-A family uses antifuse programming technology: one-time programmable connections that retain configuration through power cycles, need no external configuration memory, and offer inherent resistance to bit-stream readback, making them a subcategory of non-volatile, single-chip programmable logic within the broader power/space/defense-oriented FPGA hierarchy.
Key features include 1,452 CLBs of logic capacity, 175 user-input/output pins in the 208-BFQFP footprint, a 294 MHz maximum system frequency, CMOS low-power operation, and RoHS-compliant lead-free plastic packaging. The '-2' speed grade and the 'I' industrial temperature suffix distinguish this member from commercial (-C) and standard speed (-1) variants.
Technically, the SX-A architecture combines a sea-of-modules logic fabric with high-speed, low-skew routing resources. The antifuse interconnect adds near-zero programming overhead to routing delay, giving deterministic timing that simplifies closure in glue-logic, bus-interface, and state-machine designs. Because configuration is permanent, designs are secure against cloning and do not require a boot PROM, reducing board cost and turn-on failure modes.
Typical applications include industrial control glue logic, legacy aerospace/defense board refresh, communications bridge logic, and single-chip integration of multiple discrete ASSP/PLD functions to cut BOM cost, exactly the system-wide savings Microchip promotes for SX-A devices.
A key design consideration: antifuse FPGAs are one-time programmable. Verify the design fully in simulation and, ideally, in a comparable device before committing the flight/production unit, and confirm I/O banking voltages against the SX-A family datasheet.
This page synthesizes verified distributor data, drop-in same-footprint alternatives, pricing context, and practical design notes beyond what the manufacturer datasheet alone provides.
直接替換替代品，適用於 A54SX16A-2PQG208I — 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： A54SX16A-2PQG208I （相同外形與佔位） — 差異在於 Package, System Gates, Family, RoHS Status, Process Technology.
A54SX16A-PQG208I
✅ 直接替換聯絡詢價
查看資料表 →A54SX16A-1PQG208
✅ 直接替換聯絡詢價
查看資料表 →A54SX16A-2PQG208
✅ 直接替換聯絡詢價
查看資料表 →A54SX16A-PQG208A
✅ 直接替換聯絡詢價
查看資料表 →A54SX16A-PQG208M
✅ 直接替換聯絡詢價
查看資料表 →A54SX32A-2PQG208I
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查看資料表 →A54SX16A-2PQG208I 最大額定值與電氣特性
| Family | SX-A (Antifuse FPGA) |
| System Gates | 24000 gates |
| Logic Cells | 1452 cells |
| Configurable Logic Blocks (CLBs) | 1452 |
| Maximum Frequency | 294 MHz |
| User I/O | 175 |
| 封裝 | PQFP-208 (208-BFQFP, QFP-208) |
| Speed Grade | -2 |
| Temperature Grade | Industrial (I suffix) |
| 工作溫度 | -40C to +85C |
| Technology | CMOS, antifuse (one-time programmable) |
| 安裝類型 | Surface Mount |
| Programming Technology | Antifuse (non-volatile, no external config memory) |
| RoHS 狀態 | RoHS Compliant |
| Lead Free | Yes |
A54SX16A-2PQG208I pqfp-208 (208-bfqfp, qfp-208) 腳位配置指南
A54SX16A-2PQG208I（pqfp-208 (208-bfqfp, qfp-208) 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： A54SX16A-2PQG208I.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX16A-2PQG208I 適用於 6 應用s: Industrial Control Glue Logic, Legacy Board Refresh / Obsolete Logic Replacement, Communications Bridge Logic, Aerospace and Defense Board Electronics, Single-Chip System Integration / BOM Cost Reduction, Test and Measurement Instrument Logic.
Industrial Control Glue Logic
The A54SX16A-2PQG208I integrates bus arbitration, address decoding, and interface bridging that would otherwise require several PLDs or ASSPs, delivering the single-chip cost savings Microchip promotes for the SX-A family. Its -40C to +85C industrial grade ('I' suffix) matches factory-floor ambient ranges, and the 294 MHz -2 speed grade leaves ample margin for typical 10-50 MHz control clocks. The antifuse fabric provides deterministic pin-to-pin timing that simplifies timing closure across a production run, and instant-on configuration means no boot delay or external configuration PROM is needed on the control card.
推薦
Legacy Board Refresh / Obsolete Logic Replacement
Mature industrial and defense boards frequently lose discontinued PAL/GAL/ASIC support; the A54SX16A-2PQG208I absorbs multiple legacy functions into one 24,000-gate antifuse fabric while preserving the original PQFP-208 footprint used by earlier Actel designs. Because configuration is permanent and unreadable, the replacement design inherits the tamper profile of the original custom logic. The industrial temperature rating and RoHS-compliant lead-free package allow the refreshed board to meet current environmental directives without a full platform redesign, and 175 user I/Os cover wide legacy buses.
推薦
Communications Bridge Logic
The 294 MHz maximum toggle frequency of the -2 speed grade supports backplane bridge, protocol translation, and serial-to-parallel conversion functions at intermediate data rates. The SX-A routing architecture keeps inter-module delays predictable, which matters for multi-clock-domain bridges where setup/hold windows must be verified once and hold across production. With 175 user I/Os in PQFP-208, wide 32/64-bit data paths can be handled on a single device, replacing several smaller PLDs; CMOS static power keeps the device cool in sealed telecom enclosures without forced airflow.
推薦
Aerospace and Defense Board Electronics
Antifuse FPGAs are a long-standing choice in defense electronics because configuration data cannot be dumped or corrupted by single-event effects in the same way as SRAM bitstreams, and no configuration memory exists to intercept. The 'M'-grade siblings (e.g., A54SX16A-PQG208M) extend this family into higher-screening flows, letting engineers prototype on the commercial/industrial A54SX16A-2PQG208I and migrate within the same footprint. Deterministic antifuse timing also eases timing-derivation paperwork for safety-reviewed designs, and the wide -40C to +85C industrial range covers many sheltered platform requirements.
推薦
Single-Chip System Integration / BOM Cost Reduction
Microchip positions SX-A devices for system-wide savings by integrating multiple discrete functions into one low-cost, single-chip solution. A design consolidating decoders, counters, FIFOs, and handshaking state machines into the A54SX16A-2PQG208I eliminates device count, assembly cost, and inter-board failure points; at XAIPART's tiered pricing (from $128.50 at qty 1 down to $89.90 at qty 1000 as of 2026-09-03), consolidation typically beats a multi-PLD BOM above modest volumes. Instant-on antifuse operation also removes the supervisor/config-PROM line items that SRAM FPGA designs require.
推薦
Test and Measurement Instrument Logic
Instrument cards use the A54SX16A-2PQG208I for trigger distribution, time-stamping counters, and interface formatting where deterministic, repeatable timing across units is essential - a property of the fixed antifuse interconnect. The 294 MHz -2 rating supports fast counter clocks, while 175 I/Os interface with wide probe or backplane buses through PQFP-208's gull-wing leads, which are inspectable and reworkable on standard SMT lines. Since calibration firmware does not change in the field, the one-time-programmable nature of the antifuse fabric is not a limitation in this domain.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX16A-2PQG208I — 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 | A54SX16A-PQG208I | A54SX16A-2PQG208 | A54SX32A-2PQG208I |
|---|---|---|---|---|
| Package | PQFP-208 (208-BFQFP) | PQFP-208 - same | PQFP-208 - same | PQFP-208 - same |
| Brand | Microsemi (Microchip Technology) | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24000 gates | 24000 gates | 24000 gates | Approx. double (SX32A die) |
| Logic Cells / CLBs | 1452 | 1452 | 1452 | Higher (SX32A) |
| Maximum Frequency | 294 MHz | Base speed grade (lower than 294 MHz) | 294 MHz | 294 MHz (-2 grade) |
| Temperature Grade | Industrial (-40C to +85C, I suffix) | Industrial (I) | Commercial (no I suffix) | Industrial (I) |
| Speed Grade | -2 | Base | -2 | -2 |
主要差異化特點
- Fastest speed grade in the SX16A PQG208 family (對比A54SX16A-PQG208I)
- Industrial temperature rating (對比A54SX16A-2PQG208)
- Footprint-compatible upgrade path to double the logic (對比A54SX32A-2PQG208I)
設計說明
Antifuse devices are one-time programmable: once the A54SX16A-2PQG208I is programmed, it cannot be erased or corrected. Complete functional simulation, timing simulation at worst-case -2 speed corners, and a pin-swap review before committing the device. Budget spare devices (typically 10-15% attrition) in prototype builds, and reserve a logic-fit margin of at least 20-30% of the 1,452 CLBs to avoid routing congestion late in the design cycle.
The 208-pin PQFP has 0.5 mm-pitch gull-wing leads. Follow the Microchip SX-A datasheet land pattern and specify a no-clean or water-wash solder profile compatible with 0.5 mm pitch to prevent bridging on the dense periphery. Place package decoupling capacitors (100 nF per supply pin pair, plus bulk capacitance) within a few millimeters of VDD/VSS pins; the PQFP's perimeter power pins benefit from a continuous ground plane on layer 2 for low-inductance return paths.
Estimated: CMOS dynamic power scales with f * C * V^2, so although core supply details should be confirmed against the SX-A datasheet, keeping toggle rates on high-fanout nodes low and registering outputs at the pad ring reduces I/O switching current substantially. Verify I/O banking voltage groupings in the datasheet package tables before assigning 3.3 V and 5 V-tolerant signals - mixing levels across a bank is a common rework cause on 208-pin PQFP layouts.
The plastic PQFP-208 relies on PCB copper for heat dissipation. Estimated: at typical SX-A switching currents (tens of mA core plus I/O loads), junction rise above ambient is modest, but designs driving many outputs at high frequency should add thermal vias under the package center and at least 2 oz copper on the ground plane. Per the Microchip SX-A datasheet, thermal characteristics depend on device, package, airflow, and system dissipation capability - model your specific conditions.
合規資訊
ROHS COMPLIANT per FindIC and Jotrin verified listings for A54SX16A-2PQG208I. Mouser lists the family variant as LEAD FREE. REACH, halogen-free and conflict-minerals status not stated in provided data - consult official Microchip compliance documents.
