A54SX16P-2TQG176 - 16K Gate SX FPGA 320MHz 147 I/O | Microchip
MPN： A54SX16P-2TQG176 ✓ 啟用中A54SX16P-2TQG176 概覽
An FPGA (Field-Programmable Gate Array) is a semiconductor device that implements configurable logic blocks (CLBs) interconnected by programmable routing, allowing designers to build custom digital circuits without fabricating an ASIC. Within the programmable logic hierarchy, the device sits as FPGA -> programmable logic IC -> logic IC -> digital semiconductor. The SX family uses a sea-of-modules architecture built on 0.35 um CMOS technology, a topology Microchip states delivers device performance and integration levels not achieved by other FPGA architectures of its generation.
Key features include 1452 configurable logic modules, a dual 3.3V/5V supply architecture, and a -2 speed grade supporting toggle rates up to 320 MHz. The antifuse programming technology is non-volatile and radiation-tolerant by nature, providing instant-on operation with no configuration PROM and inherently higher resistance to configuration upset than SRAM-based FPGAs.
Architecturally, the sea-of-modules structure shortens routing delays and enables deterministic timing, which is why the SX family targets performance-intensive applications such as bus bridging, state machines, and high-speed glue logic. The 5V-tolerant I/O structure of the P variant eases interfacing with legacy 5V systems.
Typical applications include industrial automation control, telecommunications line cards, test and measurement boards, and legacy avionics or military system sustainment where 5V compatibility and instant-on logic are required.
A key design consideration is that antifuse devices are one-time programmable: the design must be frozen before assembly, so budget for rework and socketed prototyping during development.
This page synthesizes distributor availability data, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with pricing references as of 2026-09-03.
直接替換替代品，適用於 A54SX16P-2TQG176 — 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： A54SX16P-2TQG176 （相同外形與佔位） — 差異在於 Package, System Gates, Family, RoHS Status, Operating Temperature.
A54SX16P-2TQG176I
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查看資料表 →A54SX16P-2TQG176 最大額定值與電氣特性
| Family | Actel SX (A54SX16P) |
| System Gates | 16000 |
| Configurable Logic Blocks (CLBs) | 1452 |
| User I/O | 147 |
| 最大時脈頻率 | 320 MHz |
| Speed Grade | -2 |
| Core Supply Voltage | 5 V |
| I/O Supply Voltage | 3.3 V / 5 V |
| Technology | 0.35 um CMOS |
| Programming Technology | Antifuse (one-time programmable) |
| Architecture | Sea-of-modules |
| 腳位數 | 176 |
| 封裝 | 176-LQFP / TQFP |
| Terminal Pitch | 0.5 mm |
| 安裝方式 | Surface Mount |
| 工作溫度範圍 | 0 C to +70 C (commercial) |
| Lead Free | Yes (G suffix, per PCB Electronics listing) |
A54SX16P-2TQG176 176-lqfp / tqfp 腳位配置指南
A54SX16P-2TQG176（176-lqfp / tqfp 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： A54SX16P-2TQG176.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX16P-2TQG176 適用於 6 應用s: Industrial Automation Control, Telecommunications Line Cards, Test and Measurement Equipment, Avionics and Defense Sustainment, Battery Management and Power Supervision Logic, Security and Surveillance Interface Boards.
Industrial Automation Control
The A54SX16P-2TQG176 fits industrial control boards that need deterministic glue logic between PLC backplanes, motor controllers, and sensor banks. Its 320 MHz class timing supports fast state machines and bus arbitration, while 147 user I/O in a 176-pin TQFP consolidates discrete 74-series logic into one device, cutting board area and BOM count. The 3.3V/5V I/O structure interfaces directly with legacy 24V-buffered TTL-level signals through standard translators. Because the antifuse configuration is non-volatile and instant-on, the FPGA is operational the moment power is applied - valuable on factory floors where a system reboot delay of even hundreds of milliseconds is unacceptable.
推薦
Telecommunications Line Cards
Legacy telecom line cards frequently use SX-series antifuse FPGAs for channel framing, HDLC processing, and backplane interface glue logic. The A54SX16P-2TQG176's sea-of-modules architecture provides short, deterministic interconnect delays, which matters for tight framing deadlines at T1/E1 rates, and its 16000-gate capacity with 1452 logic modules handles multi-channel aggregation. Instant-on antifuse configuration eliminates the configuration delay and single-point-of-failure PROM found in SRAM FPGA designs, improving carrier-grade availability. Its 5V-tolerant I/O eases integration into older 5V backplanes common in sustainment programs for installed telecom equipment.
推薦
Test and Measurement Equipment
Bench and automated test instruments use the A54SX16P-2TQG176 as timing sequencer, trigger logic, and instrument bus interface. The -2 speed grade supports counter/timer paths at rates up to 320 MHz class, and the 16K gate density accommodates trigger state machines plus data formatting. Antifuse one-time programming suits production test fixtures, where the design is frozen and security against design copying is valued. The 176-pin TQFP with 0.5 mm pitch is hand-solderable for lab rework, and the 5V I/O tolerance simplifies stimulus electronics driving TTL-level test points on legacy units under test.
推薦
Avionics and Defense Sustainment
Sustainment programs for installed avionics and defense electronics rely on SX antifuse FPGAs because original designs were frozen decades ago and the parts remain procurable. The A54SX16P-2TQG176 replicates the original 16K-gate logic with 147 I/O and instant-on behavior required by MIL-STD-1553 and ARINC interface boards. The non-volatile antifuse fabric has no configuration readback path, supporting design-security requirements, and its deterministic timing simplifies recertification of timing-critical paths. For extended-temperature airframes, the identical-footprint A54SX16P-2TQG176I industrial grade substitutes without PCB change.
推薦
Battery Management and Power Supervision Logic
In battery management systems, the A54SX16P-2TQG176 implements fast protection state machines - overcurrent, overvoltage, and contactor sequencing - that must react within microseconds. Placed alongside the BQ76952 monitor, the FPGA aggregates cell-level flags and executes hard-wired cutoff logic independent of a microcontroller, providing a redundant safety layer for functional-safety architectures. Instant-on antifuse operation means protection logic is live during power-up transients, unlike microcontroller solutions that need boot time. The 3.3V I/O interface connects cleanly to monitor ICs and isolated transceivers on the communication side.
推薦
Security and Surveillance Interface Boards
Surveillance and access-control hardware uses the A54SX16P-2TQG176 for camera interface bridging, panel I/O expansion, and tamper-detection logic. The 147 user I/O handle parallel sensor arrays and relay drive outputs, while deterministic 320 MHz class timing supports precise event timestamping. Antifuse configuration cannot be altered in the field, hardening deployed units against configuration-tamper attacks compared with SRAM FPGAs whose bitstreams can be disturbed. Its 5V-tolerant inputs directly accept legacy alarm-loop signals, and the commercial 0-70 C rating suits indoor control-room enclosures where the industrial I-grade is unnecessary.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX16P-2TQG176 — 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 | A54SX16P-2TQG176I | A54SX16P-TQG176 | A54SX16-2TQG176 | A54SX16-1TQG176 |
|---|---|---|---|---|---|
| Package | 176-LQFP / TQFP | 176-LQFP / TQFP - same | 176-LQFP / TQFP - same | 176-LQFP / TQFP - same | 176-LQFP / TQFP - same |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 16000 | 16000 | 16000 | 16000 | 16000 |
| User I/O | 147 | 147 | 147 | 147 | 147 |
| Speed Grade | -2 (320 MHz class) | -2 (320 MHz class) | Standard grade (slower) | -2 (320 MHz class) | -1 (slower) |
| 5V-Tolerant P-Die I/O | Yes | Yes | Yes | No (base die) | No (base die) |
| Programming Technology | Antifuse (one-time programmable) | Antifuse | Antifuse | Antifuse | Antifuse |
主要差異化特點
- 5V-tolerant P-die I/O (對比A54SX16-2TQG176)
- Fastest -2 speed grade in the family (對比A54SX16-1TQG176)
- Commercial grade cost efficiency (對比A54SX16P-2TQG176I)
- Instant-on non-volatile configuration (對比A54SX16P-TQG176)
設計說明
Provide a clean 5 V core rail with 0.1 uF ceramic bypass capacitors at each VCC/GND pin pair placed within 2 mm of the device, plus 10 uF bulk capacitance per supply domain. SX-family dynamic current scales with clock toggle rate and I/O loading, so run the Microchip Designer power estimator with your actual utilization and toggle rates rather than assuming worst-case numbers. The 3.3V/5V I/O bank needs its own decoupling; never share the core rail with noisy I/O return paths.
Antifuse FPGAs are one-time programmable: there is no reflow-and-reprogram recovery. Program on a Silicon Sculptor programmer before assembly or use socketed prototypes during bring-up, and treat the programming house as part of your production lead time. Additionally, the P-die and non-P die share the same TQFP-176 footprint but differ in I/O voltage tolerance - swapping A54SX16P-2TQG176 for a non-P A54SX16-2TQG176 on a 5V-driven bus can overstress inputs. Verify I/O standards before any substitution.
The 176-pin TQFP with 0.5 mm pitch requires care in fanout: use 0.2 mm via-in-pad or dogbone escapes, and keep the outer two pin rings escape-routed on layer 1 to avoid squeezing traces under the body. Since the SX16 provides deterministic interconnect timing, lock critical I/O with Designer constraints early and honor the datasheet TQFP land pattern; a 10% oversize pad improves inspectability without violating pitch clearance for this 0.35 um-generation device.
合規資訊
G suffix denotes lead-free package; PCB Electronics listing marks the part 'LEAD FREE'. RoHS/REACH declarations should be confirmed against the current Microchip product page for the specific date code.
