A54SX72A-2FGG484 - 108K Gate SX-A FPGA 484-BGA | Microchip
MPN： A54SX72A-2FGG484 ✓ 啟用中A54SX72A-2FGG484 概覽
An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a matrix of configurable logic blocks (CLBs) interconnected by programmable fabric, allowing designers to implement custom digital circuits after manufacturing. Within the programmable logic hierarchy, the SX-A sits in the antifuse FPGA class: its program connections are one-time programmable, which yields lower cost, higher security against bitstream readback, and lower static power than SRAM-based FPGAs.
Key features include 0.25 um CMOS antifuse technology, 2.5 V single-supply operation, up to 360 user-accessible I/Os in the 484-ball package, and a 1 mm ball pitch that simplifies PCB layout. The -2 speed grade supports the fastest timing within the SX-A family, making it appropriate for state machines, glue logic consolidation, bus interfacing, and control-plane functions at moderately high clock rates.
Technically, the SX-A architecture combines C-cell modules for combinational logic with R-cell register modules for sequential elements, providing predictable single-module routing delays. Because the antifuse fabric is programmed once at the board factory (via a programmer such as Silicon Sculptor), no configuration PROM is needed at power-up, and the design is effectively immune to bitstream cloning.
Typical applications include industrial automation control boards, communications line cards, test and measurement backplanes, and defense/aerospace systems where the one-time-programmable, low-power antifuse fabric and long product lifecycle are valued.
Design consideration: because antifuse FPGAs cannot be reprogrammed after programming, verify the design completely in simulation and, if possible, prototype on a reprogrammable platform before committing; also reserve spare I/O bank headroom for ECO changes.
This page synthesizes distributor pricing, verified drop-in alternatives within the same 484-ball footprint, and practical design notes not found in the manufacturer datasheet, as of 2026-09-03.
直接替換替代品，適用於 A54SX72A-2FGG484 — 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-2FGG484 （相同外形與佔位） — 差異在於 Package, RoHS Status, Operating Temperature, Speed Grade, System Gates.
A54SX72A-2FGG484I
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-FGG484A
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-FGG484M
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-1FGG484I
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-FFGG484
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-2FG484
✅ 直接替換聯絡詢價
查看資料表 →A54SX72A-2FGG484 最大額定值與電氣特性
| Family | SX-A (antifuse FPGA) |
| System Gates | 108,000 (72,000 typical) |
| Configurable Logic Blocks (CLBs) | 6,036 |
| Number of I/O | 360 |
| Maximum Frequency | 294 MHz |
| 供應電壓 | 2.5 V |
| Technology | 0.25 um CMOS antifuse |
| Speed Grade | -2 |
| 封裝 | 484-ball FBGA (FGG484), 27 x 27 mm |
| Ball Pitch | 1 mm |
| 安裝類型 | Surface Mount |
| Programming Type | One-time programmable (antifuse) |
| RoHS 狀態 | Compliant, lead free |
A54SX72A-2FGG484 484-ball fbga (fgg484), 27 x 27 mm 腳位配置指南
A54SX72A-2FGG484（484-ball fbga (fgg484), 27 x 27 mm 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-2FGG484.
請參閱 資料表 以查看完整腳位配置。
典型應用
A54SX72A-2FGG484 適用於 6 應用s: Industrial Automation Control, Communications Line Cards, Test and Measurement Backplanes, Defense and Aerospace Systems, Glue Logic Consolidation, Video and Display Timing Control.
Industrial Automation Control
The A54SX72A-2FGG484 fits industrial PLC and motor-control supervisory boards because its 108K gates (6,036 CLBs) consolidate sequencers, interlocks, and bus bridges that would otherwise need several CPLDs and glue-logic devices, reducing BOM count to a single chip. Its 360 user I/Os handle parallel field-bus interfaces, encoder inputs, and backplane lines in the 484-ball FBGA, while the 294 MHz toggle capability comfortably covers industrial clock domains of 50-100 MHz with margin. Because the antifuse fabric is one-time programmable, no configuration PROM is required and the logic powers up instantly at 2.5 V, improving machine boot time. The trade-off versus an SRAM FPGA is the absence of reprogrammability, so design changes require a new programmed lot.
推薦
Communications Line Cards
Telecom and datacom line cards use the A54SX72A-2FGG484 as a control-plane fabric for frame counting, alarms, and parallel chip-to-chip buses. Its -2 speed grade (294 MHz toggle class) supports backplane-typical clock rates, and 360 I/Os terminate multiple TDM or Ethernet-MAC sideband buses without external fanout logic. The antifuse one-time-programmable fabric provides instant-on operation, important for hot-swappable cards that must assert management signals before a host CPU loads firmware, and its configuration cannot be read back, a security benefit in carrier equipment. Power is single-rail 2.5 V with low static draw, simplifying card power budgeting versus SRAM FPGAs that need configuration flash plus multiple rails.
推薦
Test and Measurement Backplanes
In automated test equipment (ATE) and instrument backplanes, the A54SX72A-2FGG484 implements channel-level handshaking, trigger distribution, and register-file style status aggregation. The 108K-gate capacity accommodates hundreds of per-channel state machines, and the -2 speed grade timing supports 100 MHz-class trigger domains with predictable single-module delays inherent to the SX-A R-cell/C-cell architecture. Its 484-ball FBGA at 1 mm pitch routes 360 I/Os to dense connector fields, and the 2.5 V antifuse core produces low static power across hundreds of channels - a measurable advantage when a rack holds dozens of boards. Recompilation in Libero SoC allows ECO updates before programming; after programming, units are immutable, so treat the program step as production release.
推薦
Defense and Aerospace Systems
Antifuse FPGAs are a long-standing choice in defense and space electronics because the one-time-programmable fabric is inherently resistant to bitstream readout, powers up instantly, and offers a configuration store with no external flash to fail or be tampered with. The A54SX72A-2FGG484 supplies 108K gates of payload control, telemetry framing, and sensor-interface logic, while its military-temperature sibling A54SX72A-FGG484M (same footprint) covers extended environments without PCB changes. The 2.5 V, 0.25 um process avoids advanced-node radiation-sensitive geometries used in modern SRAM FPGAs, though program-by-lot handling and full simulation sign-off are mandatory since programming is irreversible. Microchip's long lifecycle support of the SX-A line suits decade-long program sustainment.
推薦
Glue Logic Consolidation
The core use case of the SX-A family is replacing dozens of 74-series devices, PALs, and CPLDs with one low-cost chip, exactly the 'single-chip integration' positioning Microchip describes for SX-A. The A54SX72A-2FGG484's 6,036 CLBs absorb address decoders, bus transceiver control, wait-state generators, and interrupt aggregation, and its 360 I/Os provide the parallel pin count these legacy buses demand - typically impossible with smaller QFP-packaged CPLDs. Single 2.5 V supply and near-zero static current beat a pile of TTL devices on power and reliability, and the antifuse program behaves like hardwired logic with no boot delay. Designers should reserve 10-15% spare I/O and logic headroom for future ECOs since the device cannot be reprogrammed in the field.
推薦
Video and Display Timing Control
Raster-timing generators, scan converters, and custom display interfaces map well onto the A54SX72A-2FGG484: pixel-clock domains of 30-100 MHz sit within the -2 speed grade's 294 MHz toggle capability, and 360 I/Os support wide parallel video buses such as RGB888 plus sync in a single device. Deterministic antifuse routing delays simplify meeting fixed video timing constraints without the timing-closure iterations common on larger SRAM FPGAs. Instant-on behavior means sync signals are valid as soon as 2.5 V ramps, avoiding the blanking anomalies SRAM FPGAs show while loading configuration. Keep high-speed video I/O on the shortest ball-to-connector paths and respect the 1 mm BGA escape routing rules in the datasheet package section.
推薦
推薦產品摘要
工程參考資料，適用於 A54SX72A-2FGG484 — 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-2FGG484I | A54SX72A-FGG484A | A54SX72A-FGG484M | A54SX72A-1FGG484I | A54SX72A-2FG484 |
|---|---|---|---|---|---|---|
| Package | 484-ball FBGA (FGG484) | 484-ball FBGA (FGG484) - same | 484-ball FBGA (FGG484) - same | 484-ball FBGA (FGG484) - same | 484-ball FBGA (FGG484) - same | 484-ball FBGA (FG484, leaded) - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108,000 | 108,000 | 108,000 | 108,000 | 108,000 | 108,000 |
| User I/O | 360 | 360 | 360 | 360 | 360 | 360 |
| Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| RoHS / Lead Status | Lead free (G suffix) | Lead free (G suffix) | Lead free (G suffix) | Lead free (G suffix) | Lead free (G suffix) | Leaded (no G suffix) |
主要差異化特點
- Fastest -2 speed grade in the 108K family (對比A54SX72A-1FGG484I)
- Industrial temperature drop-in available (對比A54SX72A-2FGG484I)
- Lead-free (G) ball metallization for RoHS production (對比A54SX72A-2FG484)
設計說明
Escape routing a 1 mm-pitch 484-ball FBGA requires via-in-pad or dog-bone fanout; plan a minimum 4-layer stack with dedicated 2.5 V power plane to reach the distributed VCC balls. Follow the Microchip SX-A datasheet package section for ball-map constraints: keep high-fanout I/O banks near board edge connectors and reserve a clear channel for the programming (Silicon Sculptor) header to the dedicated programming balls.
The SX-A fabric runs from a single 2.5 V supply; dynamic current scales with toggle rate and static current is very low because antifuse connections draw no standby configuration current. Decouple each VCC ball cluster with 0.1 uF ceramics plus bulk 10-47 uF near the device. Derive exact ICC budgets from the family datasheet current tables rather than reusing SRAM-FPGA estimates, and confirm power-up ramp rate limits stated by Microchip.
The most common SX-A pitfall is treating the device like a reprogrammable FPGA: antifuse programming is permanent, so a design bug found after programming means scrapping the lot. Always complete full timing simulation, static timing sign-off in Libero Designer, and at least one system-level prototype before releasing programming files. Also note the -2 vs -1 speed grade difference: IP that closes timing on -2 may fail on -1, so document the grade on your BOM explicitly.
合規資訊
Lead free and RoHS compliant per distributor listings (Kynix, FindIC) for the FGG484 lead-free package variant.
