A54SX16A-2TQG100 - 24K Gate SX-A FPGA 81 I/O TQFP-100 | Microchip
MPN： A54SX16A-2TQG100 ✓ 啟用中A54SX16A-2TQG100 概覽
A field-programmable gate array (FPGA) is a type of programmable logic device that implements custom digital circuits through a fabric of configurable logic blocks (CLBs) and programmable interconnect. Unlike SRAM-based FPGAs, the SX-A family uses antifuse programmable interconnect elements, which are one-time programmable and retain their configuration permanently. This places the SX-A in the hierarchy: FPGA -> programmable logic device -> digital logic IC -> semiconductor.
Key features include 24K system gates (16K typical available gates), 81 user-programmable I/O with multiple standards support, a low-cost single-chip integration path that replaces multiple glue-logic devices, and a permanently programmed antifuse architecture that provides inherent design security - the configured bitstream cannot be read back. The -2 speed grade offers high clock rates suitable for state machines, bus interfaces, and control logic.
Technically, the device is built on CMOS antifuse process technology with 0.22-micron-class geometry, operating from a nominal 2.5 V core supply (2.25 V to 2.75 V range per distributor data) over a commercial temperature range of 0 C to +70 C. The TQFP-100 footprint supports reflow soldering in standard SMT assembly lines.
Typical applications include industrial control glue logic, communications bridging, legacy system re-engineering, and military/aerospace program sustainment where one-time-programmable, secure configuration is valued.
Design consideration: because antifuse devices are one-time-programmable, always verify the design in simulation and, ideally, on a higher-density prototype part before committing production devices to programming.
This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.
直接替換替代品，適用於 A54SX16A-2TQG100 — 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： A54SX16A-2TQG100 （相同外形與佔位） — 差異在於 System Gates, Package, Operating Temperature, RoHS Status, Family.
A54SX16A-2TQG100A
✅ 直接替換📋 參考替代品（不在目錄中）
A54SX16A-TQG100A
✅ 直接替換聯絡詢價
查看資料表 →A54SX16A-1TQG100M
✅ 直接替換聯絡詢價
查看資料表 →A54SX32A-2TQG100I
✅ 直接替換聯絡詢價
查看資料表 →A54SX32A-2TQG100
✅ 直接替換聯絡詢價
查看資料表 →A54SX32A-TQG100A
✅ 直接替換聯絡詢價
查看資料表 →A54SX32A-1TQG100M
✅ 直接替換聯絡詢價
查看資料表 →A54SX16A-2TQG100 最大額定值與電氣特性
| Family | SX-A (Actel/Microchip antifuse FPGA) |
| System Gates | 24000 |
| Logic Cells / Modules | 1452 |
| User I/O | 81 |
| Speed Grade | -2 |
| Toggle Rate | 294 MHz |
| Core Supply Voltage | 2.25 V to 2.75 V (nominal 2.5 V) |
| Programming Technology | Antifuse (one-time programmable) |
| Process Technology | CMOS |
| 工作溫度 | 0 C to +70 C (commercial) |
| 封裝 | TQFP-100 (PQFP100), 1.4 mm height, 0.5 mm pitch |
| 安裝類型 | Surface Mount (SMD/SMT) |
| Configuration Memory | Non-volatile (antifuse, retains programming) |
| RoHS 狀態 | Compliant |
| Number of CLBs | 1452 |
A54SX16A-2TQG100 tqfp-100 (pqfp100), 1.4 mm height, 0.5 mm pitch 腳位配置指南
A54SX16A-2TQG100（tqfp-100 (pqfp100), 1.4 mm height, 0.5 mm pitch 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： A54SX16A-2TQG100.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX16A-2TQG100 適用於 6 應用s: Industrial Control Glue Logic, Legacy System Re-Engineering and Obsolescence Mitigation, Communications Bridging and Protocol Conversion, Design-Secure Control Logic, Aerospace and Defense Program Sustainment, Test and Measurement Instrumentation Logic.
Industrial Control Glue Logic
The A54SX16A-2TQG100 fits industrial control boards that need to consolidate address decoding, bus interfacing, handshaking, and control state machines into one device. Its 24,000 system gates and 1452 logic modules provide enough capacity to replace dozens of 74-series TTL devices, while the 81 user I/O covers parallel buses, chip selects, and status lines. The -2 speed grade's ~294 MHz toggle capability easily meets microprocessor bus timing, and the 2.5 V CMOS core keeps static power low in always-on controllers. Because the antifuse fabric programs permanently, the configured logic is immune to configuration upset at power-up, an advantage over SRAM FPGAs in systems without configuration flash. Designs should stay within the 0 C to +70 C commercial rating or move to an industrial-suffix variant.
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Legacy System Re-Engineering and Obsolescence Mitigation
The A54SX16A-2TQG100 is widely used to re-implement discontinued CPLD, PAL, and ASIC logic in long-life industrial, telecom, and defense equipment. The SX-A antifuse architecture replicates legacy asynchronous and synchronous behavior without requiring external configuration devices, since the pattern is burned permanently into the interconnect. With 24K system gates, 1452 modules, and 81 I/O in a 100-pin TQFP, a single part replaces multi-chip glue-logic clusters, simplifying BOM and PCB respin. The -2 speed grade preserves timing margins for older bus standards such as ISA-class, VME companion logic, and processor support functions. Designers must recompile legacy HDL or netlists in the Libero/Designer flow and perform timing closure before programming, since antifuse parts cannot be reworked in-system.
推薦
Communications Bridging and Protocol Conversion
In networking line cards and backplane interfaces, the A54SX16A-2TQG100 serves as a protocol bridge, translating between processor buses and serial or parallel communication interfaces. Its ~294 MHz toggle rate at the -2 speed grade supports high-clock-rate serializers, deserializers, and framing state machines at moderate data rates, while 1452 modules provide the registers and counters such designs need. The 81 user I/O allow simultaneous connection of two or more bus domains. The antifuse configuration cannot be read back, giving a degree of intellectual-property protection valued in communication equipment. Engineers should budget the 2.5 V core and verify I/O standard compatibility with 3.3 V peripherals per the SX-A datasheet electrical tables.
推薦
Design-Secure Control Logic
The A54SX16A-2TQG100 suits applications where the configured logic must be protected from cloning. Unlike SRAM FPGAs whose bitstream is stored in external flash and loaded at power-up, the SX-A antifuse fabric is programmed once at the factory or programming station and reveals no readable configuration image afterward. This makes the 24K-gate device appropriate for proprietary control algorithms, secure key handling logic, and anti-tamper companion functions. The 1452 modules and 81 I/O cover moderate-complexity secure state machines, and the permanent programming also eliminates configuration-time vulnerability windows. Trade-offs are the one-time-programmable nature, which rules out field updates, and the need to manage physical device programming logistics per production build.
推薦
Aerospace and Defense Program Sustainment
SX-A antifuse FPGAs have a long heritage in aerospace and defense ground and flight equipment, and the A54SX16A-2TQG100 continues to sustain such programs. Its resistance to configuration corruption, radiation-tolerant family lineage, and permanently programmed fabric make it a preferred retrofit target when legacy Actel devices must be replaced. The 24K system gates map to the moderate gate counts typical of telemetry framing, motion control, and interface adapter designs, with 1452 modules and 81 I/O providing register-heavy logic capacity. Program managers value the availability of multiple speed grades and the A-revision (A54SX16A-2TQG100A) as form-fit-function continuity. Note the commercial temperature rating; select I-suffix or higher-grade family members for extended environments.
推薦
Test and Measurement Instrumentation Logic
Bench instruments and automated test fixtures use the A54SX16A-2TQG100 for timing generation, trigger logic, counter arrays, and bus arbitration between the measurement front end and a host processor. The -2 speed grade's ~294 MHz toggle rate supports precise event timing at counter resolutions useful for instrumentation, while the 1452 modules implement wide comparators, FIFO control, and sequencer state machines. With 81 user I/O, one device interfaces to front-panel logic, ADC control buses, and a backplane simultaneously. The 2.5 V core keeps supply design simple with local regulators, and RoHS-compliant TQFP-100 packaging integrates into standard SMT production. Because configuration is permanent, instrument firmware logic changes require a new programmed device per revision.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX16A-2TQG100 — 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 | A54SX16A-2TQG100A | A54SX16A-TQG100A | A54SX16A-1TQG100M | A54SX32A-2TQG100I |
|---|---|---|---|---|---|
| Package | TQFP-100 | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same | TQFP-100 - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24000 | 24000 | 24000 | 24000 | 32000 (higher density) |
| Speed Grade | -2 | -2 | Standard (A-class, slower) | -1 | -2 |
| Operating Temperature | 0 C to +70 C (commercial) | Commercial | A-class grade | M grade | Industrial (-40 C to +85 C) |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
主要差異化特點
- Fastest commercial speed grade in the same package (對比A54SX16A-TQG100A)
- Lower cost than higher-density siblings (對比A54SX32A-2TQG100I)
- Configuration security from antifuse fabric (對比A54SX16A-2TQG100A)
設計說明
The SX-A core operates from a 2.25 V to 2.75 V supply (nominal 2.5 V). Provide a clean local LDO or buck regulator with at least 10 uF bulk and 0.1 uF per supply pin decoupling. Antifuse FPGAs draw near-zero static current in the unprogrammed state but dynamic power scales with clock frequency and toggle activity, so size the regulator for worst-case switching rather than leakage. Confirm exact per-rail current figures in the SX-A family datasheet power tables before finalizing the power budget.
This device is one-time programmable. Never commit an unverified design file to a production device: complete RTL simulation, place-and-route timing analysis, and preferably validate on a prototype density first. Once antifuse elements are burned, the part cannot be erased or reworked. Also verify the correct speed-grade timing library (-2) is selected in the Designer/Libero flow; compiling with a faster library mask on a slower suffix part will produce non-functional silicon.
The TQFP-100 has a 0.5 mm lead pitch; use a standard TQFP-100 land pattern per the manufacturer package drawing with solder-mask defined or non-solder-mask defined pads per your assembly house capability. Avoid running signals under the package center without ground stitching, and keep clock inputs routed short with series termination if trace lengths exceed a few centimeters. Assign unused I/O as grounded outputs or inputs with pull definitions per the SX-A user guide to avoid floating nodes.
JTAG/programming pin access should be brought to test points or a header even if not used in-system, because factory programming and any failure analysis require access. Keep the 2.5 V plane solid under the device to minimize I/O return-path loops, and separate noisy switching-regulator nodes from clock and JTAG routing. Estimated: at ~294 MHz toggle regions keep clock traces under 50 mm to limit ringing without termination.
合規資訊
Listings describe the part as ROHS COMPLIANT in lead-free TQFP-100 packaging. REACH, halogen-free, and conflict-minerals statuses not stated in provided data.
