A54SX32-1PQG208 - 32K Gate SX FPGA, 208-PQFP | Microchip
MPN： A54SX32-1PQG208 ✗ 停產A54SX32-1PQG208 概覽
An antifuse FPGA is a one-time-programmable (OTP) field-programmable gate array in which each programmable interconnect point is an open antifuse that is permanently shorted during programming. Unlike SRAM FPGAs, antifuse devices retain their configuration in silicon, require no configuration PROM, boot instantly at power-up, and are inherently resistant to configuration corruption - traits that placed the Actel SX family in a hierarchy running FPGA -> antifuse FPGA -> one-time-programmable programmable logic -> programmable semiconductor.
Key features include the sea-of-modules architecture built from Combinatorial Modules (CMs) and Register Modules (RMs), which delivers gate utilization and routing efficiency well ahead of SRAM architectures of the same era; a 0.35 um CMOS process enabling internal toggle rates up to roughly 280 MHz; and a wide operating family spanning 6K to 60K system gates with I/O standards supporting 3.3V and 5V signaling.
Technically, the SX architecture clusters CM/RM pairs into clusters and superclusters, keeping critical interconnect local and short. This is why the family achieves ASIC-like speed and deterministic timing without the configuration-load penalty of SRAM parts, while consuming low static power. Design entry uses the Actel/Microchip Libero design flow with VHDL or Verilog synthesis; programming is performed once via dedicated programming equipment because antifuses cannot be reprogrammed.
Typical applications include glue logic and bus-interface consolidation in industrial control, aerospace and defense boards requiring instant-on, boot-free configuration, telecommunications line cards, and motor/automation controllers where design security matters. The PQFP-208 package suits reflow-soldered, moderately pin-dense boards.
Design consideration: because the device is one-time-programmable, simulate thoroughly and freeze the design before committing silicon; a design change requires a new device, so plan procurement accordingly.
This page synthesizes distributor availability data, same-family drop-in variants, and lifecycle guidance not found in a single datasheet.
直接替換替代品，適用於 A54SX32-1PQG208 — 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： A54SX32-1PQG208 （相同外形與佔位） — 差異在於 Package, Family, System Gates, Architecture, Supply Voltage.
A54SX32-2PQG208
✅ 直接替換聯絡詢價
查看資料表 →A54SX32-1PQG208M
✅ 直接替換聯絡詢價
查看資料表 →A54SX32-1PQ208
✅ 直接替換 ⚠️ 規格未經驗證📋 參考替代品（不在目錄中）
A54SX32A-1PQG208
✅ 直接替換📋 參考替代品（不在目錄中）
A54SX32-PQ208
✅ 直接替換聯絡詢價
查看資料表 →A54SX32-1PQG208 最大額定值與電氣特性
| Family | SX (Actel antifuse FPGA) |
| System Gates | 32,000 (48K max per Mouser listing) |
| Logic Modules / Cells | 1,800 |
| User I/O | 174 |
| Maximum System Performance | 280 MHz |
| Process Technology | 0.35 um CMOS |
| 供應電壓 | 3.3 V / 5 V |
| Programming Type | Antifuse, one-time programmable (OTP) |
| Speed Grade | -1 (standard) |
| 封裝 | 208-Pin PQFP (208-BFQFP) |
| 安裝類型 | Surface Mount |
| Lead Free Status | Lead free (per distributor listings) |
| Configuration Storage | Non-volatile (antifuse, no boot PROM) |
| Architecture | Sea-of-modules (CM/RM clusters) |
| RoHS 狀態 | Compliant (per distributor listings) |
A54SX32-1PQG208 208-pin pqfp (208-bfqfp) 腳位配置指南
A54SX32-1PQG208（208-pin pqfp (208-bfqfp) 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： A54SX32-1PQG208.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX32-1PQG208 適用於 6 應用s: Industrial Control and Automation Glue Logic, Aerospace and Defense Legacy Board Sustainment, Telecommunications Line Cards, Secure Single-Chip Logic Consolidation, Motor Drive and Motion Control Sequencing, Test and Measurement Fixture Logic.
Industrial Control and Automation Glue Logic
The A54SX32-1PQG208 fits industrial control boards that must consolidate address decoding, bus bridging, and sequencing logic into one deterministic device. Its 32K gates and 1,800 logic modules absorb dozens of 7400-family devices, while the 280 MHz-class internal performance easily covers PLC backplane timing. Because the antifuse configuration is non-volatile, the board boots instantly with no configuration PROM - important for machinery that must be functional the moment 24V control power is applied. Use the 3.3V core with 5V-tolerant I/O for legacy industrial signaling, and reserve I/O margin from the 174 available pins for field revisions routed as NC test points.
推薦
Aerospace and Defense Legacy Board Sustainment
Antifuse FPGAs were historically favored in aerospace and defense because their one-time-programmed configuration cannot be upset by SEU-induced configuration loss and requires no radiation-exposed configuration memory. The A54SX32-1PQG208 and its M-grade sibling A54SX32-1PQG208M support sustainment of legacy flight and ground-system boards where redesign is prohibited. The PQ208 through-reflow package simplifies rework in low-volume military production. Note that the base commercial part is not radiation-qualified; for rad-tolerant needs, Microchip's RTAX family (e.g., RTAX250SL parts) carries that role, while the SX32 handles non-critical digital aggregation on the same board.
推薦
Telecommunications Line Cards
Telecom line cards of the SX32 era used antifuse FPGAs for framer glue, HDLC offload, and backplane interfacing, benefiting from deterministic timing and instant availability after hot-swap insertion. The A54SX32-1PQG208's 174 I/Os support the parallel bus widths typical of T1/E1 framers and backplane connectors, while 0.35 um CMOS keeps static power low in always-on equipment. Designers should place 0.1 uF decoupling at each VCC pin per datasheet guidance and verify 5V-tolerant pin assignments against the backplane standard in use. For life-of-field spares, source same-die variants before residual stock depletes.
推薦
Secure Single-Chip Logic Consolidation
Where IP protection matters - pay terminals, licensed equipment, anti-cloning industrial products - the A54SX32-1PQG208's antifuse fabric provides hardware-level design security: there is no bitstream to intercept, no readback path, and the programmed interconnect is invisible even under decapsulation-level inspection short of destructive analysis. This is a structural advantage over SRAM FPGAs whose configuration flash or external PROM can be copied. Integrate state machines, authentication logic, and proprietary interfaces within the 32K gates, and keep the design in Libero under source control, because the OTP nature means a security flaw cannot be patched in the field.
推薦
Motor Drive and Motion Control Sequencing
Motion controllers use the A54SX32-1PQG208 to generate PWM gating, quadrature decode, and interlock logic with cycle-accurate determinism unavailable in microcontroller software. The 280 MHz-class fabric easily supports 20 kHz-plus PWM carriers with sub-nanosecond-phase resolution across the 174 I/Os, and the non-volatile configuration ensures the drive never powers gates before sequencing logic is live - a genuine safety benefit over SRAM FPGAs that spend milliseconds loading. Couple the FPGA I/O to gate drivers through isolators, and honor the 3.3V/5V supply domains listed in the datasheet when interfacing to legacy encoder signals.
推薦
Test and Measurement Fixture Logic
Production test fixtures and ATE adapter boards employ the A54SX32-1PQG208 for protocol emulation, scan-chain stitching, and timing-generation glue. Instant-on behavior means the fixture is ready the moment the tester initializes - no configuration download latency per DUT cycle - and the PQ208 hand-solderable QFP footprint eases fixture rework between product generations. Designers should exploit the 1,800 logic modules for per-pin comparators and reserve gates for boundary-scan-style debug logic. Because the device is OTP, program fixture variants from separate, versioned programming files and label each programmed device with its fixture revision.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX32-1PQG208 — 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 | A54SX32-2PQG208 | A54SX32-1PQG208M | A54SX32A-1PQG208 | A54SX32-PQ208 |
|---|---|---|---|---|---|
| Package | 208-PQFP (208-BFQFP) | 208-PQFP - same | 208-PQFP - same | 208-PQFP - same footprint family | 208-PQFP - same |
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 32K (48K max) | 32K (48K max) | 32K (48K max) | 48K (2880 CLBs per FindIC) | 32K |
| Logic Cells / Modules | 1,800 | 1,800 | 1,800 | 2,880 CLBs | 1,800 |
| Process / Supply | 0.35 um, 3.3V/5V | 0.35 um, 3.3V/5V | 0.35 um, 3.3V/5V | 0.35 um class, 3.3V/5V | 0.35 um, 3.3V/5V |
| Lead Finish / RoHS | Lead-free (G suffix), RoHS compliant | Lead-free (G suffix) | Lead-free (G suffix) | RoHS compliant | Tin/lead (non-G), not RoHS |
主要差異化特點
- Fastest standard speed grade in 208-PQFP among same-generation SX32 parts (對比A54SX32-PQ208)
- Lead-free RoHS-compliant plating (對比A54SX32-PQ208)
- Non-volatile antifuse fabric with no configuration PROM (對比A54SX32A-1PQG208)
設計說明
The SX32 uses separate VCC and VCCA (analog/PLL-related) supplies within its 3.3V/5V scheme per the SX family datasheet. Place a 0.1 uF ceramic capacitor at every VCC/VCCA pin pair and at least one 10 uF bulk capacitor per device. Estimated: with 1,800 modules toggling at even 25% activity, core current is typically in the tens-of-mA range at 3.3V, but run the Actel power calculator in Libero with your actual netlist before sizing the regulator - I/O current with heavily loaded 5V-tolerant banks can dominate.
Antifuse OTP is the defining constraint: once programmed, the device cannot be corrected. Freeze RTL, pass timing simulation, and verify pin assignments against the 208-PQFP datasheet pinout before sending devices to the programmer. A frequent error is reusing a place-and-route pinout from a different package (e.g., TQ144) - the PQ208 pin ring assignment differs. Order spare programmed devices per design revision, since a field fix requires physically swapping silicon.
Use a standard QFP-208 land pattern with slightly elongated pads (per IPC-style QFP practice) to aid rework on low-volume boards. Route the highest-fanout clock on an inner layer with a solid ground plane beneath to control the 280 MHz-class edges; keep series termination resistors near the FPGA driver pins for lines longer than ~50 mm. Provide thermal relief via 2-oz copper planes if the board carries multiple programmable devices in an enclosed industrial chassis.
合規資訊
Distributor listings (PCB Electronics, Kynix) mark A54SX32-1PQG208 as LEAD FREE; RoHS compliance per DigiKey listing. REACH, halogen-free, and conflict-minerals status not stated in provided data.
