A54SX16-CQ256 - SX FPGA 24K Gates 180 I/O CQFP-256 | Microsemi
料号： A54SX16-CQ256 ✓ 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 |
A54SX16-CQ256 概述
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. The SX family uses a sea-of-modules architecture combined with a one-time-programmable antifuse interconnect, placing it in the hierarchy: FPGA -> programmable logic device -> programmable semiconductor. Unlike SRAM FPGAs, the antifuse configuration is non-volatile and immune to configuration readback.
Key features include the sea-of-modules architecture that delivers high routing efficiency and deterministic timing, dual supply operation (3.0 V to 3.6 V core/ring and 4.75 V to 5.25 V per the device specification page), 180 programmable I/O pins for wide bus interfaces, and a ceramic CQFP package suited to demanding environments. Antifuse programming also removes the need for an external configuration PROM, reducing BOM cost and board area.
Technically, the device offers an estimated 24,000 gates and 1452 LABs in a performance-oriented architecture that the manufacturer states enables dramatic reductions in design cost, power, and time-to-market for performance-intensive applications. Logic is implemented in a fine-grained module structure that simplifies synthesis and timing closure compared with coarse-grained alternatives.
Typical applications include aerospace and industrial control logic, bus bridging and glue logic consolidation, communication equipment state machines, and military-grade systems where ceramic packaging and one-time programmability are preferred.
Design consideration: because the device is one-time programmable, verify the complete design in simulation and, ideally, on a prototyping device before committing the production part - programming errors cannot be erased.
This page synthesizes distributor pricing, verified drop-in alternatives, pin-count guidance, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： A54SX16-CQ256 ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
A54SX16-CQ256B
✅ 直接替换📋 参考替代料（不在目录中）
A54SX16-1CQ256
✅ 直接替换📋 参考替代料（不在目录中）
A54SX16-2CQ256
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
A54SX16A-CQ256
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
A54SX16-CQ256 最大额定值与电气特性
| Series | SX (Actel/Microsemi SX family) |
| Programmable Type | In System Programmable (antifuse, OTP) |
| Estimated System Gates | 24000 |
| Logic Array Blocks (LABs) | 1452 |
| Number of I/O | 180 |
| Voltage - Supply (VCCI) | 3 V ~ 3.6 V |
| Voltage - Supply (programming/ring) | 4.75 V ~ 5.25 V |
| Architecture | Sea-of-modules, antifuse interconnect |
| 封装 / 外壳 | 256-BFCQFP Exposed Pad and Tie Bar |
| Supplier Device Package | 256-CQFP (75x75) |
| 安装类型 | Surface Mount |
| Configuration Memory | Antifuse (one-time programmable, non-volatile) |
| Programming Adapter | Silicon Sculptor SM208CQ-ACTEL-2 adapter module |
A54SX16-CQ256 256-cqfp (75x75) 引脚配置指南
A54SX16-CQ256（256-cqfp (75x75) 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： A54SX16-CQ256.
请参阅 数据手册 以查看完整引脚配置。
典型应用
A54SX16-CQ256 适用于 6 应用s: Aerospace and Defense Logic, Industrial Control and Automation, Communication Equipment State Machines, Bus Bridging and Glue Logic Consolidation, Test and Measurement Instrumentation, Medical Device Control Logic.
Aerospace and Defense Logic
The A54SX16-CQ256 fits aerospace and defense processing platforms because its antifuse configuration is one-time programmable and cannot be read back or altered in flight, unlike SRAM-based FPGAs whose configuration stream is a known attack and SEU surface. With an estimated 24,000 gates, 1452 LABs, and 180 user I/Os, it consolidates glue logic, bus interfaces, and state machines that would otherwise occupy multiple MIL-qualified devices. The ceramic 256-BFCQFP (75x75) package with exposed pad and tie bar supports high-reliability solder attachment and thermal management in conduction-cooled assemblies. Typically placed between a processor and backplane interfaces with 3.0-3.6 V I/O supply rails, it adds no configuration PROM to the BOM, improving board-level reliability.
推荐
Industrial Control and Automation
In industrial controllers, the A54SX16-CQ256 implements deterministic sequencing, interlock logic, and parallel bus bridging where fixed, non-volatile configuration is preferred over reconfigurable SRAM fabrics. The sea-of-modules architecture delivers predictable timing across the 24,000-gate fabric, so safety interlocks and watchdog logic behave identically on every power-up without configuration loading delay. The 180 programmable I/Os interface PLC backplanes, encoders, and relay driver banks at 3.0-3.6 V levels, while the ceramic 256-CQFP package withstands vibration and temperature cycling better than plastic packages. Because the device is programmed once on a Silicon Sculptor (SM208CQ-ACTEL-2 adapter), production units are identical, simplifying factory acceptance testing and long-term field support.
推荐
Communication Equipment State Machines
Telecom and datacom line cards use the A54SX16-CQ256 for framing logic, alarm aggregation, and backplane handshaking. The 180 user I/O pins address wide parallel buses such as legacy T1/E1 framers and backplane connectors, while the antifuse fabric guarantees that critical failover state machines are active immediately at power-up - no configuration time window exists during which the card is offline. Operating from the specified 3.0-3.6 V and 4.75-5.25 V supply ranges, the device slots into mixed 5 V/3.3 V legacy backplane environments. The one-time-programmable nature also protects carrier-grade firmware IP, since the bitstream physically cannot be extracted from the programmed antifuse network.
推荐
Bus Bridging and Glue Logic Consolidation
The A54SX16-CQ256 is a classic glue-logic consolidator: with an estimated 24,000 gates and 180 I/Os it replaces dozens of 74-series devices, PALs, and CPLDs across processor-peripheral boundaries, cutting board area, assembly cost, and failure points. The fine-grained sea-of-modules architecture maps random combinatorial logic and address decoders efficiently, and the antifuse interconnect provides fixed, low-skew routing between I/O rings and internal modules. Because configuration is non-volatile, bridged buses are functional the instant supplies reach the 3.0-3.6 V operating window, which matters in systems where peripherals must be reachable by an early-boot processor. The 256-CQFP exposed-pad package simplifies rework and inspection on legacy production lines.
推荐
Test and Measurement Instrumentation
Instrument front ends and timing generators benefit from the A54SX16-CQ256's deterministic, configuration-free startup: counters, trigger arbiters, and scan controllers implemented in the antifuse fabric are live before any host configuration cycle completes. The 1452 LABs implement wide counters and comparators, while 180 I/O pins drive probe multiplexers, relay matrices, and backplane trigger buses in the 3.0-3.6 V domain. Ceramic CQFP packaging tolerates the thermal cycling typical of bench instruments with frequent power cycles. Once programmed via Silicon Sculptor with the SM208CQ-ACTEL-2 module, every instrument shipped contains bit-identical logic, which eases calibration traceability and regulatory documentation across long service lifetimes.
推荐
Medical Device Control Logic
Diagnostic and monitoring equipment uses the A54SX16-CQ256 where predictable, immutable control logic supports regulatory validation. Because the antifuse configuration cannot silently change, a validated logic image remains validated for the service life of the device - there is no firmware-update surface in the FPGA itself. The 24,000-gate capacity covers motor sequencing for sample handling, sensor multiplexing across 180 I/O pins, and safety interlocks, with the ceramic 256-BFCQFP package providing mechanical robustness for portable and cart-based systems. Power design is straightforward: a 3.0-3.6 V I/O supply plus the specified 4.75-5.25 V rail, with no configuration PROM to monitor during power-on self-test.
推荐
推荐产品汇总
工程参考数据： A54SX16-CQ256 ——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 | A54SX16-CQ256B | A54SX16-1CQ256 | A54SX16-2CQ256 | A54SX16A-CQ256 |
|---|---|---|---|---|---|
| Package | 256-BFCQFP Exposed Pad and Tie Bar (75x75) | 256-BFCQFP Exposed Pad and Tie Bar - same | 256-CQFP - same | 256-CQFP - same | 256-CQFP - same |
| Brand | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) |
| Estimated System Gates | 24000 | 24000 | 24000 | 24000 | 24000 |
| User I/O | 180 | 180 | 180 | 180 | 180 |
| Logic Array Blocks | 1452 | 1452 | 1452 | 1452 | 1452 |
| Programming Adapter | SM208CQ-ACTEL-2 (Silicon Sculptor) | SM208CQ-ACTEL-2 - same | SM208CQ-ACTEL-2 - same | SM208CQ-ACTEL-2 - same | SM208CQ-ACTEL-2 - same |
关键差异点
- Standard flow availability from distributor stock （对比 A54SX16-CQ256B)
- Faster timing closure at identical footprint （对比 A54SX16-1CQ256)
- Ceramic package with exposed pad and tie bar （对比 A54SX16-TQG176 (same die, plastic TQFP))
设计说明
The A54SX16-CQ256 is one-time programmable: antifuse links are permanently blown during programming and cannot be erased. Never program a production unit directly from an unverified fuse file. Reserve a prototype device (or a -2 speed grade unit) for programming-trial runs, and complete gate-level simulation plus static timing analysis in Libero/Designer before committing. Microchip support also advises checking the latest SM208CQ-ACTEL-2 adapter module recommendation before each programming session, since adapter firmware revisions matter for CQ256 devices.
The device specifies two supply ranges: 3.0-3.6 V and 4.75-5.25 V per the Microsemi specification page. Map these rails to VCCI and the programming-related supply per the SX family datasheet pin tables, and ensure the 5 V rail is present during any in-system programming scenario. Because antifuse FPGAs draw essentially no static configuration current, decouple each rail with local 0.1 uF ceramics plus bulk capacitance at the board entry point; there is no configuration-PROM inrush to budget for, simplifying the power-up sequencing design.
The 256-BFCQFP has an exposed pad and tie bar that should be bonded to the PCB ground plane to meet the manufacturer's mechanical and electrical intent. Use a footprint with via-in-pad or perimeter vias under the pad for low-inductance grounding. With 180 user I/Os on a 75x75 mm ceramic body, maintain controlled-impedance routing on fast switching banks and stagger break-out traces to avoid necking between adjacent CQFP leads. Confirm land-pattern dimensions against the current Microchip package drawing rather than legacy Actel footprints.
合规信息
Ceramic hermetic CQFP packages on legacy Microsemi FPGAs historically use non-RoHS leaded lead finishes for high-reliability builds; RoHS/REACH status must be confirmed per order code on the Microchip product page before European-market shipment.
