A54SX32A-PQG208M - 32K-Gate Antifuse FPGA, 208-PQFP | Microchip
料号： A54SX32A-PQG208M ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $0 | $0.00 |
| 10 | $0 | $0.00 |
| 100 | $0 | $0.00 |
| 500 | $0 | $0.00 |
| 1,000 | $0 | $0.00 |
A54SX32A-PQG208M 概述
An antifuse FPGA is a one-time-programmable (OTP) programmable logic device in which programming forms permanent low-resistance interconnects. Unlike SRAM FPGAs, an antifuse device retains its configuration through power cycles without an external configuration flash, offers inherent resistance to radiation-induced configuration upsets, and presents no bitstream to steal in the field - a hierarchy of benefits that places the SX-A among the most trusted families for high-reliability, security-sensitive systems.
Key features include the sea-of-modules architecture built from combinatorial C-cells and register R-cells, 0.25 um CMOS antifuse technology, a 2.5 V core supply, and combinational logic speeds that support system clocks well above 100 MHz. The 174 available I/Os support both 5 V-compatible and 3.3 V signaling options, easing integration into mixed-voltage legacy boards.
Architecturally, the die floor is covered with a dense grid of logic modules with virtually no area lost to routing channels; a rich hierarchical routing fabric connects module, cluster, and array levels. Timing is deterministic because routing is fixed after place-and-route, simplifying worst-case design sign-off for mil/aero programs.
Typical applications include avionics and space control logic, military communications, industrial glue logic integration, and obsolescence-driven redesigns consolidating multiple ASICs or PAL/GAL devices into a single chip.
Design consideration: because the device is OTP, verify the full netlist in simulation and, where possible, in the companion -A or commercial speed-grade silicon before committing military-grade units to programming.
This page adds distributor cross-reference data, drop-in alternatives, pricing context, and engineering notes beyond the manufacturer datasheet.
直接替换替代料： A54SX32A-PQG208M ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： A54SX32A-PQG208M （相同外形与封装尺寸） ——差异在于 Package, System Gates, Operating Temperature, Process Technology, Family.
快速对比工具——选择替代料号进行并排对比：
A54SX32A-PQG208A
✅ 直接替换✓ 有现货
$47.8 / 个
查看数据手册 →A54SX32A-1PQG208M
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →A54SX32A-PQG208I
✅ 直接替换📋 参考替代料（不在目录中）
A54SX32A-2PQG208
✅ 直接替换📋 参考替代料（不在目录中）
A54SX32A-1PQG208I
✅ 直接替换✓ 有现货
$44.75 / 个
查看数据手册 →A54SX32A-2PQG208I
✅ 直接替换✓ 有现货
$47.95 / 个
查看数据手册 →A54SX72A-1PQG208
✅ 直接替换✓ 有现货
$47.8 / 个
查看数据手册 →A54SX32A-PQG208M 最大额定值与电气特性
| Family | SX-A (Actel/Microsemi antifuse FPGA) |
| Equivalent System Gates | 32000 gates |
| Logic Modules (Cells) | 1800 |
| User I/O | 174 |
| Maximum Toggle Frequency | 238 MHz |
| Process Technology | 0.25 um CMOS antifuse |
| Core Supply Voltage | 2.5 V (2.25 V to 2.75 V) |
| Programming Technology | Antifuse, one-time programmable (OTP) |
| 封装 | 208-PQFP (28x28 mm, 0.5 mm pitch) |
| 安装类型 | Surface Mount |
| 工作温度 | -55C to +125C (military / TC) |
| Architecture | Sea-of-modules (C-cells and R-cells) |
| Configuration Retention | Non-volatile (antifuse, no boot configuration) |
| Radiation Tolerance | Configuration inherently immune to SEU (no SRAM configuration memory) |
| Packaging | Tray |
A54SX32A-PQG208M 208-pqfp (28x28 mm, 0.5 mm pitch) 引脚配置指南
A54SX32A-PQG208M（208-pqfp (28x28 mm, 0.5 mm pitch) 封装）的引脚配置。 该数字 IC 包含 GPIO、通信接口（UART、SPI、I2C）和电源引脚。请参阅制造商数据手册以了解复用引脚功能和配置选项。对嵌入式系统设计和 PCB 布局至关重要。
暂无详细引脚数据： A54SX32A-PQG208M.
请参阅 数据手册 以查看完整引脚配置。
典型应用
A54SX32A-PQG208M 适用于 6 应用s: Avionics Control Logic, Military Communications Equipment, Space and High-Reliability Payloads, Industrial Automation and Control, Obsolescence Mitigation and Board Redesign, Secure Embedded Systems.
Avionics Control Logic
In avionics flight-control, ARINC-interface, and mission-computer designs, the A54SX32A-PQG208M fits because its antifuse configuration contains no SRAM configuration memory, eliminating configuration-upset concerns at altitude and providing instant-on operation required by power-interrupt-tolerant avionics architectures. The -55C to +125C M-grade matches unconditioned bay and wing ambient requirements. It is typically used as deterministic glue logic between processors and ARINC 429/1553 transceivers, with 174 user I/Os absorbing bus-interface fan-out. Design it with fixed routing budgets - timing is fixed after place-and-route, which simplifies DO-254-style worst-case timing sign-off.
推荐
Military Communications Equipment
Software-defined and legacy military radios use the A54SX32A-PQG208M for framing, formatting, and interface bridging logic where tamper resistance matters: because the antifuse netlist is written into silicon and no bitstream exists in external memory, configuration extraction is significantly harder than on SRAM FPGAs. The 238 MHz-class toggle rate covers common modulation and backplane interface clocks, while 2.5 V core operation keeps power low for man-portable platforms. Designers should budget the one-time-programmable limitation by locking the netlist after simulation, and use the companion industrial grades during early development.
推荐
Space and High-Reliability Payloads
The SX-A antifuse architecture is a long-standing choice for satellite housekeeping and payload interface logic: configuration is immune to single-event upsets by construction, total-dose behavior of the 0.25 um antifuse process is well characterized over decades of flight heritage, and the PQFP package avoids solder-ball fatigue concerns of fine-pitch BGAs. The A54SX32A-PQG208M provides 32K gates and 174 I/Os sufficient for telemetry formatting, watchdog, and latchup-protection supervisory logic. For radiation-critical paths, pair with the rad-tolerant RT54SX family variants and confirm the required screening flow with Microchip before design freeze.
推荐
Industrial Automation and Control
On factory-floor PLC backplanes and motor-control interface boards, the A54SX32A family consolidates PAL/GAL/22V10 glue logic, address decoding, and state machines into one chip, cutting BOM count and board area. Although the PQG208M is the military grade, industrial programs commonly standardize on it for derating margin: operating a -55C to +125C device at 0C to +70C ambient gives large guard bands on electromigration and timing drift. Its 5 V-tolerant I/O options interface directly with legacy TTL sensors and drives. Use the industrial PQG208I variants when cost, not margin, is the driver.
推荐
Obsolescence Mitigation and Board Redesign
Defense and industrial programs facing end-of-life on Actel SX, FPGAs-in-disguise PLDs, or mask-programmed ASICs use the A54SX32A-PQG208M as a consolidation vehicle: its 32K gates and 1,800 modules absorb multiple legacy PLDs, and the 208-pin PQFP is hand-solderable for low-volume maintenance builds. Because the die is one-time programmable, redesigns should re-verify all timing in the current Libero/Designer toolchain before committing. Long-term availability is supported by Microchip's continued defense product line, making it a safer re-baseline target than broker-sourced discontinued silicon.
推荐
Secure Embedded Systems
Security-focused systems - cryptographic key handling, secure boot roots, and anti-tamper platforms - benefit from the A54SX32A-PQG208M because it stores no external configuration bitstream and offers no JTAG-retrievable SRAM configuration image at power-up. Logic is fixed in antifuse silicon, supporting platforms where reverse engineering of the implemented function must be difficult. At 32K gates it implements moderate cryptographic interface wrappers and bus filters. Note the trade-off: OTP means no field patching; any vulnerability fix requires replacing programmed devices, so simulate and security-review the netlist exhaustively before programming military units.
推荐
推荐产品汇总
工程参考数据： A54SX32A-PQG208M ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | A54SX32A-PQG208A | A54SX32A-1PQG208M | A54SX32A-2PQG208 | A54SX72A-1PQG208 |
|---|---|---|---|---|---|
| Package | 208-PQFP (28x28 mm) | 208-PQFP - same | 208-PQFP - same | 208-PQFP - same | 208-PQFP - same outline, 72K die |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 32000 | 32000 | 32000 | 32000 | 72000 |
| Logic Modules | 1800 | 1800 | 1800 | 1800 | 4032 |
| User I/O | 174 | 174 | 174 | 174 | 174 |
| Operating Temperature | -55C to +125C (M) | Extended/automotive grade (A) | -55C to +125C (M) | Commercial/industrial grade | Commercial/industrial grade |
| Programming Technology | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP |
| Core Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
关键差异点
- Military temperature qualification （对比 A54SX32A-2PQG208)
- Configuration security （对比 SRAM FPGAs (e.g., Xilinx/Intel equivalents))
- Cost-optimized speed grade choice （对比 A54SX32A-1PQG208M)
- Capacity headroom on same footprint （对比 A54SX72A-1PQG208)
设计说明
Supply the A54SX32A-PQG208M core from a clean 2.5 V rail within the 2.25 V to 2.75 V window per the SX-A datasheet. Decouple every VDD/VSS pin pair with 0.1 uF ceramic capacitors placed within 2 mm of the package, plus at least one 10 uF bulk capacitor per supply domain. Antifuse FPGAs have low, data-dependent core current with no configuration surge at power-up, but I/O switching current on 174 outputs can inject significant ground bounce - use a solid, unbroken ground plane under the 208-PQFP and assign high-fan-out returns to adjacent ground pins.
The most costly mistake with this device is forgetting it is one-time programmable. Lock your netlist only after full functional simulation, static timing analysis at the worst military corner, and - ideally - validation on a commercial or industrial speed-grade sample in the same PQG208 package. Also confirm your programming hardware and Actel/Microsemi programming-file format are available before procurement; military-grade units cannot be used as test vehicles without risk. Finally, verify the exact ordering-code suffix semantics (M, A, I, speed digits) against the Microchip datasheet - broker listings frequently conflate PQ208 and PQG208 codes.
The 208-PQFP (28x28 mm, 0.5 mm pitch) footprint needs fan-out with 0.2 mm or finer traces to escape the two outer rows; plan for at least four layers so power, ground, and signal returns have dedicated planes. PQFP leads are susceptible to solder bridging - specify a rectangular pad with solder-mask-defined openings and inspect with AOI. For thermal relief, the exposed lead-frame of the PQFP conducts most heat to the leads, so generous copper on signal layers connected to ground pins improves dissipation at -55C to +125C extremes.
With 174 I/Os and up to 238 MHz-class internal toggle rates, control edge rates using the SX-A I/O slew options and series-terminate long traces (22-33 ohm) to suppress ringing on backplane lines. Group related outputs on the same I/O bank so voltage-reference and ground assignments remain consistent. Because the device is OTP, reserve a small set of spare I/Os routed to test points for post-production debug - you cannot reprogram pin assignments after the fact.
合规信息
M-suffix military-grade device; RoHS/lead-finish status was not stated in the retrieved distributor data. Military program line items are frequently supplied with leaded finishes for legacy soldering compatibility - verify with Microchip product change notifications.
