A54SX72A-PQ208 - 108K Gate Antifuse FPGA, 208-PQFP | Microchip
MPN： A54SX72A-PQ208 ✓ 啟用中A54SX72A-PQ208 概覽
An antifuse FPGA is a type of field-programmable gate array in which the programmable interconnect is formed by one-time-programmable antifuse elements rather than SRAM configuration cells or flash. Within the programmable logic hierarchy (FPGA -> programmable logic device -> digital IC), antifuse devices occupy the non-volatile, configuration-retention niche: the programmed connections are permanent, so no external configuration ROM is required at power-up, and the bitstream cannot be read out of the device.
Key features of the A54SX72A-PQ208 include the 0.25 um CMOS process technology, up to 2,012 dedicated flip-flops, multiple global and quadrant clock networks (CLKA, CLKB, and QCLK), and low static power consumption enabled by the antifuse architecture. The 171 available user I/O on the PQ208 package supports mixed-voltage interfacing across the wide 2.25V to 5.25V supply range.
The SX-A architecture uses a sea-of-modules fabric with combinational and sequential logic modules, giving deterministic interconnect delays that simplify timing closure compared with SRAM FPGAs. According to the Microchip SX-A Family FPGAs datasheet, the A54SX72A delivers high performance at low power, and the family is positioned for integrating multiple functions into a low-cost, single-chip solution.
Typical applications include industrial control and automation, glue logic integration and system consolidation, bridge and interface functions, and prototyping for the rad-tolerant RT54SX-S space devices, which Microchip documents as pin compatible in CQ208/PQ208 packages.
A key design consideration: antifuse devices are one-time programmable, so all functional verification must be completed in simulation before programming; budget spare I/O and logic capacity of at least 20% for design changes.
This page synthesizes distributor pricing, same-package drop-in speed/temperature-grade variants, and practical design notes not consolidated in the manufacturer datasheet. Pricing shown is indicative as of 2026-09-03.
直接替換替代品，適用於 A54SX72A-PQ208 — 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： A54SX72A-PQ208 （相同外形與佔位） — 差異在於 Package, Clock Networks, System Gates, Process Technology, Dedicated Flip-Flops.
A54SX72A-PQG208
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-PQ208I
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-PQ208M
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-PQG208I
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-PQG208M
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-1PQG208I
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-PQG208A
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-PQ208 最大額定值與電氣特性
| Family | SX-A (Actel antifuse FPGA) |
| System Gates | 108,000 |
| Logic Cells | 4,024 |
| User I/O Pins | 171 |
| Dedicated Flip-Flops | Up to 2,012 |
| Maximum Toggle Frequency | 217 MHz |
| Process Technology | 0.25 um CMOS |
| Supply Voltage Range | 2.25 V to 5.25 V |
| Core Supply Voltage | 2.5 V |
| 工作溫度 | 0C to +70C (commercial) |
| 封裝 | 208-BFQFP (PQFP-208) |
| 安裝類型 | Surface Mount |
| Programming Technology | Antifuse (one-time programmable) |
| Clock Networks | CLKA, CLKB, QCLK (global and quadrant) |
| Configuration Storage | Non-volatile (no external configuration ROM) |
| Packaging | Tray |
A54SX72A-PQ208 208-bfqfp (pqfp-208) 腳位配置指南
A54SX72A-PQ208（208-bfqfp (pqfp-208) 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： A54SX72A-PQ208.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX72A-PQ208 適用於 6 應用s: Industrial Control and Automation, Prototyping for RT54SX-S Space Designs, System Glue Logic Integration, Bridge and Interface Functions, Secure Single-Chip Design Consolidation, Test and Measurement Equipment.
Industrial Control and Automation
The A54SX72A-PQ208 fits industrial control systems because its 2.25V to 5.25V supply range bridges legacy 5V PLC backplanes and modern 3.3V logic without level-shifting glue, and its 171 user I/O handles parallel fieldbus, encoder, and relay-interface signals on one device. In use, the antifuse fabric consolidates counters, state machines, and interface bridges that previously consumed several PLDs, reducing BOM cost and board area. Because the configuration is non-volatile, the controller is functional immediately at power-up with no configuration controller - a hard requirement in factory equipment. Designers should budget at least 20% spare gates for field revisions, since antifuse programming is permanent.
推薦
Prototyping for RT54SX-S Space Designs
Microchip application note AC195 establishes the A54SX72A-PQ208 as the commercial prototyping vehicle for rad-tolerant RT54SX-S space FPGAs: the RTSX-SU device in the CQ208 package is pin compatible with the equivalent SX-A device in PQ208. Teams develop and simulate flight logic on the low-cost commercial part, validate timing at up to 217 MHz toggle rates, and then migrate to the space-grade device as a drop-in. The performance consideration is that commercial speed grades may differ slightly from space-grade AC timing, so final timing closure must be re-verified on the RT54SX-S target before flight build release.
推薦
System Glue Logic Integration
The A54SX72A-PQ208 excels at replacing clusters of discrete logic - address decoders, bus transceivers, wait-state generators, and interrupt controllers - with a single 208-pin device. Its 4,024 logic cells and up to 2,012 dedicated flip-flops absorb medium-density glue functions, while 171 I/O pins connect multiple buses simultaneously across the 2.25V to 5.25V supply range. Antifuse interconnect gives deterministic delays that simplify meeting legacy bus timing margins compared with SRAM FPGA routing variance. The trade-off is permanence: verify the integrated logic exhaustively in simulation before programming, since each device supports only one configuration.
推薦
Bridge and Interface Functions
Bus and protocol bridge designs benefit from the SX-A architecture's dedicated CLKA, CLKB, and QCLK clock networks, which allow multiple independent clock domains - for example a 66 MHz PCI-style interface and a slower peripheral bus - with quadrant clock isolation on the A54SX72A die. The wide I/O voltage support enables direct interfacing between 5V TTL buses and 3.3V or 2.5V subsystems on the same chip. With 171 available user I/O on PQ208, wide parallel buses up to 64 bits plus control are practical. Designers should register all domain-crossing signals and account for inter-domain timing using the datasheet quadrant clock specifications.
推薦
Secure Single-Chip Design Consolidation
Because the antifuse bitstream cannot be read back and configuration is stored internally, the A54SX72A-PQ208 provides inherent design-security advantages over SRAM FPGAs, whose bitstreams live in external configuration devices. Microchip positions the SX-A family for integrating multiple functions into a low-cost, single-chip solution with performance, security, and low power. This suits proprietary industrial products where IP protection matters, such as licensed equipment controllers. The consideration is inventory: any design iteration consumes a fresh device, so procurement should stock spare programmed and unprogrammed units for production rework scenarios.
推薦
Test and Measurement Equipment
Test and measurement instruments use the A54SX72A-PQ208 for timing generators, pattern generators, and measurement front-end sequencing where deterministic propagation delay is more valuable than reprogrammability. The 217 MHz toggle capability and multiple global clock networks support counter/timer chains and high-resolution time-stamping, while 2,012 dedicated flip-flops provide the register-heavy structures such designs need. Non-volatile antifuse configuration means the instrument powers up instantly into a known state, avoiding configuration latency at power-on. Engineers should verify setup/hold margins against the SX-A datasheet timing model at their actual clock frequency before freezing the design.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX72A-PQ208 — 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 | A54SX72A-PQG208 | A54SX72A-PQ208I | A54SX72A-PQ208M | A54SX72A-1PQG208I |
|---|---|---|---|---|---|
| Package | 208-PQFP (BFQFP) | 208-PQFP (BFQFP) - same | 208-PQFP (BFQFP) - same | 208-PQFP (BFQFP) - same | 208-PQFP (BFQFP) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108,000 | 108,000 | 108,000 | 108,000 | 108,000 |
| User I/O | 171 | 171 | 171 | 171 | 171 |
| Supply Voltage Range | 2.25 V to 5.25 V | 2.25 V to 5.25 V | 2.25 V to 5.25 V | 2.25 V to 5.25 V | 2.25 V to 5.25 V |
| Operating Temperature | 0C to +70C | 0C to +70C (commercial, green pkg) | Industrial grade (extended) | Military grade (extended) | Industrial grade (extended) |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
主要差異化特點
- Non-volatile, read-back-proof configuration (對比SRAM-based FPGAs (e.g., Xilinx Spartan class))
- Wide 2.25V-5.25V single-rail operation (對比A54SX72A-PQG208 (same die))
- Pin-compatible space migration path (對比RT54SX-S (CQ208))
- Deterministic antifuse interconnect timing (對比SRAM FPGA alternatives)
設計說明
The A54SX72A is a one-time-programmable antifuse device. Every configuration error consumes a physical device - there is no rework or erase. Complete post-layout timing simulation and static timing analysis in Microchip (Actel) Designer before generating the programming fuse file, and order at least 10-15% spare devices for programming yield and design iterations. Never treat the first programmed unit as production-representative without a full functional test plan.
Supply the A54SX72A-PQ208 with a rail anywhere in the 2.25V to 5.25V range, but recognize that all I/O switch at that single rail - there are no independent I/O banks. Decouple with a network of at least 0.1 uF ceramic capacitors distributed around the 208-pin package plus bulk capacitance at each corner. Simultaneous switching output noise grows with the number of I/O toggling; group high-fanout outputs on adjacent quadrants and use the QCLK quadrant clocking to contain ground bounce.
The 208-pin PQFP has gull-wing leads on 0.5 mm pitch requiring accurate footprint land patterns per the mechanical drawing in the SX-A datasheet. Inspect solder joints with X-ray or angled AOI since inner rows are hard to see optically. Avoid rework-heavy flow: PQFP lead rework is labor-intensive and risks lifted leads. If migrating later to RT54SX-S in CQ208 for space programs, confirm the CQ208/PQ208 land pattern compatibility per application note AC195 before layout freeze.
合規資訊
The original A54SX72A-PQ208 may predate lead-free conversion; the green-package PQG208 variants are the RoHS-focused options. Confirm current compliance status on the official Microchip product page or certificate of conformance.