A54SX32-TQ176M - 32K-Gate Anti-Fuse FPGA, TQFP-176 | Actel/Microchip
料号： A54SX32-TQ176M ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $185 | $185.00 |
| 10 | $172.5 | $1,725.00 |
| 100 | $158 | $15,800.00 |
| 500 | $146 | $73,000.00 |
| 1,000 | $135 | $135,000.00 |
A54SX32-TQ176M 概述
An FPGA (Field-Programmable Gate Array) is a programmable logic device that lets designers implement custom digital circuits after manufacturing. The SX family uses Actel's one-time-programmable (OTP) anti-fuse interconnect, which differs fundamentally from SRAM-based FPGAs: configuration is permanent, non-volatile, and immune to configuration-readout, making it attractive for defense, avionics, and space systems. Within the power-management hierarchy of programmable logic, SX sits at the high-performance, single-event-hardened end of 1990s-era Actel silicon.
Key features include a sea-of-modules architecture built from C-cells and R-cells (combinatorial and sequential logic modules), 3.3V core operation with 5V-tolerant I/O capability, a combinatorial delay of roughly 0.6 ns per logic module, and the very low routing delay typical of anti-fuse devices - which yields predictable, low-jitter timing unmatched by SRAM FPGAs of the same era.
Technical depth: the SX architecture delivers gate utilization above typical FPGA norms because routing is fixed at manufacture, eliminating the large interconnect capacitance that limits SRAM FPGA speed. The 0.35 um process enables 240 MHz-class counter/toggle rates. The TQ176M suffix denotes the military temperature range (M grade, -55C to +125C) in a 0.5 mm pitch, 28 x 28 mm TQFP body.
Typical applications include military and aerospace control logic, glueless bus interface and bridge logic, high-speed datapath and protocol engines, and mixed 3.3V/5V system integration in legacy industrial platforms.
Design consideration: the device is one-time programmable - there is no field rework, so verify timing closure in Actel Designer / Libero before programming, and note that the leaded TQ176M finish is RoHS non-compliant for new commercial designs.
This page synthesizes verified distributor data, drop-in same-family alternatives, pricing tiers, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： A54SX32-TQ176M ——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： A54SX32-TQ176M （相同外形与封装尺寸） ——差异在于 Family, Package, Process Technology, System Gates, Operating Temperature.
快速对比工具——选择替代料号进行并排对比：
A54SX32-2TQG176
✅ 直接替换✓ 有现货
联系询价
查看数据手册 →A54SX32-1TQG176
✅ 直接替换✓ 有现货
$43.6 / 个
查看数据手册 →A54SX32-2TQG176I
✅ 直接替换✓ 有现货
$55.1 / 个
查看数据手册 →A54SX32-1TQG176I
✅ 直接替换✓ 有现货
$45.2 / 个
查看数据手册 →A54SX32-TQG176
✅ 直接替换✓ 有现货
$31.2 / 个
查看数据手册 →A54SX32-TQG176I
✅ 直接替换✓ 有现货
$86.75 / 个
查看数据手册 →A54SX32-TQ176M 最大额定值与电气特性
| Programmable Type | In-System Programmable (one-time) |
| Number of Gates | 32000 |
| Number of Logic Cells | 1800 |
| Number of Logic Modules (CLBs) | 2880 |
| Maximum Toggle Frequency | 240 MHz |
| Combinatorial Delay per Module | 0.6 ns |
| Process Technology | 0.35 um CMOS anti-fuse |
| Supply Voltage (Core) | 3.3 V (3.0 V to 3.6 V) |
| I/O Voltage Support | 3.3 V / 5 V |
| Programming Technology | Anti-fuse (OTP) |
| Architecture | Sea-of-modules (C-cell / R-cell) |
| 工作温度范围 | -55C to +125C (M grade) |
| 封装 | 176-pin TQFP, 0.5 mm pitch |
| 安装类型 | Surface Mount |
| RoHS 状态 | RoHS Non-Compliant (contains lead) |
| Lead Free Status | Contains Lead |
A54SX32-TQ176M 176-pin tqfp, 0.5 mm pitch 引脚配置指南
A54SX32-TQ176M（176-pin tqfp, 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： A54SX32-TQ176M.
请参阅 数据手册 以查看完整引脚配置。
典型应用
A54SX32-TQ176M 适用于 6 应用s: Military and Avionics Control Logic, High-Speed Datapath and Protocol Engines, 3.3V/5V Mixed-Voltage System Integration, Secure and Instant-On Boot Logic, Legacy Industrial Platform Sustainment, Bus Interface and Bridge Logic.
Military and Avionics Control Logic
The A54SX32-TQ176M's military M-grade operating range of -55C to +125C directly aligns with avionics bay and defense electronics environments where commercial-grade silicon cannot be qualified. Its one-time-programmable anti-fuse configuration is inherently immune to configuration bitstream corruption and configuration readback, a security property SRAM FPGAs do not offer. In flight-control interfaces, MIL-STD bus bridges, and mission-computer glue logic, the 240 MHz-class performance and ~0.6 ns predictable module delays simplify static timing sign-off required for airworthiness certification. Because the anti-fuse interconnect is permanent, there is no in-flight reconfiguration risk. Designers should re-verify timing in Actel Designer at temperature corners, as the M grade is specified across the full military envelope.
推荐
High-Speed Datapath and Protocol Engines
With up to 240 MHz toggle frequency and roughly 0.6 ns combinatorial delay per C-cell module, the A54SX32-TQ176M implements fast counters, CRC/encoding engines, FIFO control, and protocol state machines that exceed what contemporaneous SRAM FPGAs achieved at equal gate counts. The anti-fuse routing contributes low, deterministic interconnect capacitance, giving consistent timing that suits fixed-latency datapaths. In 3.3V systems interfacing to legacy 5V logic, the 5V-tolerant I/O removes the need for level-shifting glue. Designers should pipeline long routes and constrain critical paths in Actel Designer to hold timing across the -55C to +125C M-grade envelope; the OTP nature means timing must be signed off before programming, since no post-silicon fixes are possible.
推荐
3.3V/5V Mixed-Voltage System Integration
The A54SX32-TQ176M operates its core at 3.3V (3.0V to 3.6V) while supporting 5V I/O signaling, which is why it remains popular in legacy industrial and defense platforms that mix modern 3.3V logic with 5V TTL buses. This dual-voltage capability eliminates external level translators, reducing part count and failure points in vibration-prone environments. With 32,000 gates of capacity, typical board-level glue logic - address decoders, bus arbiters, interrupt controllers, and parallel-bus bridges - consolidates into a single OTP device, shrinking board area and improving reliability. Layout should keep the 176-pin TQFP's power/ground pin pairs decoupled with 0.1 uF ceramics placed within a few millimeters of each supply pin pair to contain ground bounce at 5V I/O switching edges.
推荐
Secure and Instant-On Boot Logic
Because the A54SX32-TQ176M's anti-fuse configuration is blown at programming time, the device is live within microseconds of power application with no external configuration PROM, no boot latency, and no bitstream to intercept or corrupt. This makes it a strong choice for power-sequencing supervisors, secure key-management shells, root-of-trust glue, and processor hold-off logic in defense systems. SRAM FPGAs require an external flash and a boot interval during which the fabric is unconfigured; the SX32 has neither weakness. The trade-off is zero reprogrammability: any logic change requires a physically new device, so production should plan programming yield and spare stock accordingly. Verify programming via Actel's programming hardware before board assembly for best workflow.
推荐
Legacy Industrial Platform Sustainment
Many factory automation, test equipment, and telecommunication platforms designed in the late 1990s and 2000s were built around Actel SX FPGAs. The A54SX32-TQ176M, with its 32,000 gates, 240 MHz-class performance, and standard TQFP-176 0.5 mm pitch footprint, lets engineers sustain those boards without re-spinning the PCB. Pin-compatible family members at different speed and temperature grades (A54SX32-1TQG176, A54SX32-2TQG176) allow commercial builds to move to RoHS-compliant lead-free finishes while preserving the original layout, netlist, and programming files. When sourcing for sustainment, confirm speed-grade requirements against the original design's timing reports, since -1 grade parts may fail timing margins that the original grade met.
推荐
Bus Interface and Bridge Logic
The A54SX32-TQ176M's combination of 5V-tolerant I/O, deterministic sub-nanosecond logic delays, and 32K gates of capacity makes it well suited to implementing bus arbiters, VME/PCI-era bridge interfaces, memory controllers, and backplane interface glue in defense and industrial systems. Predictable routing delay allows clean setup/hold budgeting against external bus timing specifications, which is harder to guarantee on SRAM FPGAs whose routing delay varies with each compile. Designs typically dedicate C-cells to combinatorial decode and R-cells (with registered outputs) to state machines, achieving the device's full speed potential. Because the part is OTP, freeze the interface specification and complete full simulation before committing to programming; the TQFP-176's 0.5 mm pitch requires careful reflow profiling to avoid solder bridging.
推荐
推荐产品汇总
工程参考数据： A54SX32-TQ176M ——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 | A54SX32-2TQG176 | A54SX32-1TQG176 | A54SX32-2TQG176I | A54SX32-1TQG176I |
|---|---|---|---|---|---|
| Package | TQFP-176 (0.5 mm pitch) | TQFP-176 - same | TQFP-176 - same | TQFP-176 - same | TQFP-176 - same |
| Brand | Actel / Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 32000 | 32000 | 32000 | 32000 | 32000 |
| Speed Grade | Standard (base) | -2 (fastest bin) | -1 (slowest bin) | -2 | -1 |
| Temperature Range | -55C to +125C (M) | Commercial (narrower than M grade) | Commercial | Industrial (-40C to +100C) | Industrial (-40C to +100C) |
| RoHS / Lead Finish | Non-compliant (contains lead) | Compliant (lead-free G finish) | Compliant (lead-free G finish) | Compliant (lead-free G finish) | Compliant (lead-free G finish) |
| Supply Voltage | 3.3 V (3.0-3.6 V), 5V-tolerant I/O | 3.3 V / 5 V - same | 3.3 V / 5 V - same | 3.3 V / 5 V - same | 3.3 V / 5 V - same |
| Max Toggle Frequency | 240 MHz (family class) | Up to 240 MHz class (-2 bin, highest margin) | Reduced margin (-1 bin) | Up to 240 MHz class (-2 bin) | Reduced margin (-1 bin) |
关键差异点
- Military-grade temperature qualification （对比 A54SX32-2TQG176I)
- Fastest speed-bin margin available in same footprint （对比 A54SX32-1TQG176)
- OTP anti-fuse security and instant-on boot （对比 SRAM FPGAs (no pin-compatible cross-brand))
设计说明
Decouple each VDD/VSS pin pair of the TQFP-176 with 0.1 uF X7R ceramic capacitors placed within 3-5 mm of the pins, plus bulk 10 uF at the board entry. The SX32 core runs at 3.3V (3.0-3.6V) with 5V-tolerant I/O; ensure the 5V domain is never applied to core supply pins. Anti-fuse devices draw little static core current, but simultaneous switching of many 5V I/O can cause ground bounce - keep VSS plane continuity solid under the package. Estimated: at 240 MHz-class switching with tens of outputs toggling, dynamic I/O current dominates core current, so size the 5V rail regulator for the I/O budget, not the 32K gate count.
The most common pitfall with A54SX32-TQ176M is treating it like an SRAM FPGA: it is one-time programmable (anti-fuse OTP). Any functional fix after programming requires a physically new device, so complete gate-level simulation and static timing sign-off in Actel Designer across -55C to +125C corners before blowing fuses. Second pitfall: the leaded M-grade finish is RoHS non-compliant - do not ship it into RoHS markets; select A54SX32-2TQG176 instead. Third: speed grades matter - a -1 grade substitute may miss timing margins your original compile met; re-run timing after any speed-grade change.
The TQFP-176 uses a 0.5 mm lead pitch with 0.17 mm-class lead widths, requiring a fine-pitch reflow profile and stencil apertures of roughly 0.25 x 1.5 mm with 5-8% paste reduction to prevent bridging. Fan out inner rows with 0.2 mm vias on a dog-bone pattern or use via-in-pad on the outer rows. Follow the Microchip SX datasheet package mechanical drawing for the exact 28 x 28 mm land pattern. Avoid routing critical clocks under the package to reduce crosstalk into the dense lead area, and provide thermal relief through planes - the TQFP is not a thermally enhanced package.
Anti-fuse routing gives the SX32 low, deterministic interconnect delay (~0.6 ns module delay), which is a signal-integrity asset: predictable flight times simplify bus setup/hold budgeting against 5V TTL peripherals. Still, for high-fanout clocks, drive them from the dedicated clock pins and register outputs close to the driving R-cells. Estimated: at 5V I/O edges with several-picosecond-class slew through 0.35 um output buffers, series 22-33 ohm termination resistors at the package pins control ringback on 50-ohm traces longer than about one inch.
合规信息
Per distributor data (ChipDig), A54SX32-TQ176M contains lead and is RoHS Non-Compliant. For RoHS builds use G-suffix lead-free family members (e.g., A54SX32-2TQG176). REACH and conflict-minerals status not stated in provided data.
