A54SX08-1PQG208I - 8K Gate SX FPGA, 280MHz, PQFP-208 | Microsemi
MPN： A54SX08-1PQG208I ✓ 啟用中A54SX08-1PQG208I 概覽
An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a fabric of configurable logic blocks and programmable interconnects that the designer wires together after manufacturing. Within the programmable logic hierarchy, the A54SX08 belongs to the low-cost, low-power antifuse FPGA category: unlike SRAM FPGAs, antifuse configuration is one-time programmable, giving it inherent resistance to configuration readback and radiation-induced configuration upsets.
Key features include the SX family sea-of-modules architecture with high-speed dedicated carry logic, a 0.35 um antifuse CMOS process, and a 208-pin fine-pitch quad flat pack measuring 28x28 mm. The device reaches 280 MHz internal performance while consuming low static power, and the 130 user I/Os support both 3.3V and 5V signaling, easing integration into legacy 5V systems.
Architecturally, the SX family uses a module-based fabric (C-cells and S-cells) with predictable, fast interconnect, delivering ASIC-like density and timing in a programmable part. The antifuse switch adds negligible parasitic capacitance compared with pass-gate SRAM routing, which is why this family achieves its clock rates at relatively small gate counts.
Typical applications include glue logic consolidation, bus interface and bridge functions, industrial control sequencers, communications protocol handlers, and defense/aerospace subsystems that value the one-time-programmable, configuration-volatile-free nature of antifuse FPGAs.
When designing with this part, budget power and I/O assignments carefully in the Libero/M Designer software flow, and verify 5V-tolerant I/O banks against your board topology since the device supports dual-rail operation.
This page synthesizes verified distributor data, drop-in same-family alternatives, pricing tiers, and practical design notes not found in a single manufacturer datasheet.
直接替換替代品，適用於 A54SX08-1PQG208I — 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： A54SX08-1PQG208I （相同外形與佔位） — 差異在於 Operating Temperature, Package, Family, User I/O, System Gates.
A54SX08-1PQG208
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查看資料表 →A54SX08-2PQG208
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查看資料表 →A54SX16-1PQG208
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查看資料表 →A54SX16P-PQG208
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查看資料表 →A54SX08-1PQG208I 最大額定值與電氣特性
| Equivalent Gates | 8000 gates |
| Logic Cells | 512 cells |
| Logic Array Blocks | 768 LABs |
| User I/O | 130 |
| Maximum Frequency | 280 MHz |
| Process Technology | 0.35 um CMOS |
| Supply Voltage (Core) | 3V ~ 3.6V |
| Supply Voltage (I/O) | 4.75V ~ 5.25V |
| Combined Supply Support | 3.3V / 5V |
| 封裝 | 208-Pin PQFP (BFQFP), 28x28 mm |
| 安裝類型 | Surface Mount |
| Programming Technology | Antifuse (one-time programmable) |
| Family | SX (SX-A) FPGA Family |
| 工作溫度 | -40C to +85C (industrial, I suffix) |
| Supplier Device Package | 208-PQFP (28x28) |
A54SX08-1PQG208I 208-pqfp (28x28) 腳位配置指南
A54SX08-1PQG208I（208-pqfp (28x28) 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： A54SX08-1PQG208I.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX08-1PQG208I 適用於 6 應用s: Glue Logic Consolidation, Industrial Control and Sequencing, Communications Protocol Bridging, Test and Measurement Instrumentation, Military and Defense Subsystems, Legacy 5V System Modernization.
Glue Logic Consolidation
The A54SX08-1PQG208I consolidates discrete 74-series glue logic, PALs, and CPLDs into a single 8K-gate antifuse fabric with 130 user I/Os in one 208-pin PQFP. Because the SX08 reaches 280 MHz internal toggle rates with predictable module-based routing, address decoders, wait-state generators, and bus transceives run with deterministic timing that discrete TTL cannot match. Its dual 3.3V/5V rail support (3V-3.6V core, 4.75V-5.25V I/O) lets it sit directly on legacy 5V backplanes while interfacing modern 3.3V logic, eliminating level-shifters. Once programmed, the antifuse configuration is fixed, behaving like an ASIC without NRE cost - ideal for mid-volume boards where discrete logic count, inventory, and assembly cost dominate the budget.
推薦
Industrial Control and Sequencing
In industrial controllers, the A54SX08-1PQG208I implements state machines, interlock logic, and PWM/timing sequencers that must run from -40C to +85C without derating. The industrial 'I' temperature grade and one-time-programmable antifuse fabric mean there is no configuration flash to corrupt across power brownouts, a common failure mode for SRAM FPGAs on noisy factory floors. With 130 I/Os, one device replaces multiple PLC-side interface PALs driving sensors, relays, and operator-panel signals, and 280 MHz-class internal performance leaves wide margin for microsecond-scale control loops. Designs are locked in Microsemi Designer and burned once, protecting production firmware integrity against field tampering or accidental reconfiguration.
推薦
Communications Protocol Bridging
The A54SX08-1PQG208I suits protocol conversion tasks - UART-to-SPI bridges, parallel-bus to serial framers, and line-code converters - where 8K gates and 130 I/Os cover typical channel counts. The SX architecture's dedicated fast carry chains and low-skew global networks sustain the multi-MHz clocking these bridges need, while 0.35 um antifuse routing keeps per-net capacitance low for clean edge rates at 280 MHz-class toggle speeds. Dual-rail I/O (3.3V and 5V compatible) allows the FPGA to bridge a legacy 5V backplane directly to 3.3V PHYs without external translation. Because configuration is burned at manufacture, deployed units boot instantly with no configuration-load latency, a practical benefit in telecom equipment with strict reset-to-ready timing budgets.
推薦
Test and Measurement Instrumentation
Bench and automated test instruments use the A54SX08-1PQG208I for timing generators, event counters, and trigger logic where deterministic delays matter more than raw density. The 512-cell SX fabric delivers fixed, one-time-programmed timing that does not drift with configuration reloads, and the 208-pin PQFP exposes 130 I/Os for status, trigger, and data-acquisition buses on 2.0 mm-pitch footprints that are easy to probe and rework compared with fine-pitch BGAs. With 280 MHz maximum toggle capability, the device times events to the low-nanosecond region, sufficient for mid-range instrumentation. Its industrial temperature rating also suits rack-mounted equipment operating in unconditioned environments.
推薦
Military and Defense Subsystems
Antifuse FPGAs like the A54SX08-1PQG208I are favored in defense ground equipment because the programmed configuration cannot be read back or upset like SRAM bitstreams, removing a class of supply-chain and configuration-integrity concerns. The 8K-gate fabric handles bus interfaces (MIL-STD-1553 companion logic, discrete-to-digital conversion), checksum and comparison logic, and built-in-test controllers. The industrial -40C to +85C range covers sheltered and vehicle-mounted environments, while the 208-pin PQFP's through-considered 28x28 mm body suits conformally coated boards. Note that for flight or radiation environments, Microsemi's RTAX series is the qualified path; the SX08 is appropriate for tactical ground and test-station applications.
推薦
Legacy 5V System Modernization
Many installed industrial, telecom, and avionics-adjacent platforms still run 5V backplanes. The A54SX08-1PQG208I directly supports 5V I/O signaling (4.75V-5.25V VCCI) alongside a 3.3V core, letting designers replace obsolete PAL/GAL and ASIC logic with a programmable part without adding bus switch level translators. The 208-pin PQFP matches the footprint conventions of the era's PQFP ASICs, easing socket-compatible respins, and one-time antifuse programming reproduces ASIC behavior exactly at production volumes without mask charges. For boards being redesigned around 3.3V-only rails, the same die is available in the VQG100 and TQG176 package options within the SX08 family.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX08-1PQG208I — 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 | A54SX08-1PQG208 | A54SX08-PQG208I | A54SX16-1PQG208 | A54SX16-2PQG208I |
|---|---|---|---|---|---|
| Package | 208-Pin PQFP (BFQFP), 28x28 mm | 208-Pin PQFP - same | 208-Pin PQFP - same | 208-Pin PQFP - same | 208-Pin PQFP - same |
| Brand | Microsemi | Microsemi | Microsemi | Microsemi | Microsemi |
| Equivalent Gates | 8,000 | 8,000 | 8,000 | ~16,000 | ~16,000 |
| Supply Voltage | 3V~3.6V core, 4.75V~5.25V I/O | Same dual-rail scheme | Same dual-rail scheme | Same dual-rail scheme | Same dual-rail scheme |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
主要差異化特點
- Best cost-per-gate in the 208-pin PQFP family (對比A54SX16-1PQG208)
- Industrial temperature qualification (對比A54SX08-1PQG208)
- One-time-programmable configuration security (對比SRAM-based FPGAs)
設計說明
The A54SX08-1PQG208I uses a dual-rail supply: 3V-3.6V for the core and 4.75V-5.25V for I/O banks. Estimated: antifuse FPGAs draw very low static current since there is no SRAM bitstream to maintain, but dynamic current scales with toggle rate and I/O loading - budget roughly per the Microsemi power calculator for the SX family, entering your actual net toggle rates. Decouple each VCC and VCCI pin pair with 0.1 uF ceramics placed within 2 mm of the pin, plus bulk 10 uF per rail near the package.
The 208-pin PQFP has 0.5 mm pitch leads on a 28x28 mm body. Use an NSMD pad pattern per the datasheet footprint drawing and keep fan-out traces at 0.15-0.2 mm width to avoid solder bridging. Because the leads overhang the body on four sides, allocate at least 3 mm clearance beyond each lead tip for inspection and rework. Reflow profiles must follow the package MSL rating on the moisture-barrier bag label - PQFPs are moisture sensitive and require bake if floor-life is exceeded.
Antifuse devices are one-time programmable - a design error means scrapping the device. Always complete post-layout timing simulation with worst-case (slow) corner models before burning, and order spare unprogrammed units. Second, the '-1' speed grade carries specific timing tables: do not assume '-P' or '-2' grade timings. Third, remember the I/O rail must be at 4.75V-5.25V for 5V signaling; driving 5V-logic inputs from a 3.3V-only VCCI board risks violating input thresholds.
合規資訊
Compliance data was not present in the verified web data for this MPN; consult the Microchip/Microsemi product page or environmental data sheet for RoHS/REACH status of the specific ordering code.
