A54SX72A-FG256I - 108K Gate Antifuse FPGA 256-FBGA | Microchip
MPN: A54SX72A-FG256I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1317.77 | $1,317.77 |
| 10 | $1251.88 | $12,518.80 |
| 100 | $1186 | $118,600.00 |
| 500 | $1120.11 | $560,055.00 |
| 1,000 | $1054.22 | $1,054,220.00 |
Drop-in alternatives for A54SX72A-FG256I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX72A-FG256
✅ Drop-In✓ In Stock
$89 / Unit
View Datasheet →A54SX72A-FG256M
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View Datasheet →A54SX72A-1FGG256
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View Datasheet →A54SX72A-2FGG256
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$217.72 / Unit
View Datasheet →A54SX72A-FGG256M
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$136 / Unit
View Datasheet →A54SX72A-FG256I-1
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
A54SX72A-FG256I Maximum Ratings & Electrical Characteristics
| Family | SX-A (Antifuse FPGA) |
| System Gates | 108000 |
| Raw Gates | 72K |
| Module Cells | 4024 |
| Number of I/O | 203 |
| Maximum Toggle Frequency | 217 MHz |
| Supply Voltage | 2.25 V to 5.25 V |
| Core Voltage (nominal) | 2.5 V |
| Process Technology | 0.25 um / 0.22 um CMOS antifuse |
| Programming Type | One-Time Programmable (antifuse, OTP) |
| Operating Temperature | -40C to +85C (TA, industrial) |
| Package | 256-Ball FBGA (17x17 mm) |
| Mounting Type | Surface Mount |
| LABs/CLBs | 6036 |
| Packaging | Tray |
A54SX72A-FG256I 256-ball fbga (17x17 mm) Pin Configuration Guide
Complete pinout information for A54SX72A-FG256I (256-ball fbga (17x17 mm) package). This digital IC includes GPIO, communication interfaces (UART, SPI, I2C), and power pins. Refer to the manufacturer datasheet for alternate pin functions and configuration options. Essential for embedded system design and PCB layout.
No detailed pinout data available for A54SX72A-FG256I.
Refer to the datasheet for full pin configuration.
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this digital IC. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
A54SX72A-FG256I is suitable for 6 applications: Industrial Automation Control, Defense and Aerospace Subsystems, Telecommunications Line Cards, Legacy System Sustainment / Obsolete Logic Replacement, Secure Embedded Controllers, Test and Measurement Instrumentation.
Industrial Automation Control
The A54SX72A-FG256I fits industrial control and factory automation because its 203 user I/O and wide 2.25V to 5.25V supply range allow direct integration of 5V-domain sensor and actuator interfaces without level-shift circuitry. In a typical deployment the FPGA consolidates PLC I/O decoding, encoder quadrature processing, and interlock state machines into one chip, replacing dozens of 74-series devices; the 217 MHz-class cell performance leaves large timing margin for 50 MHz-class control loops. Because the antifuse configuration is live at power-up, safety interlocks are active within nanoseconds of applying power - a behavior SRAM FPGAs cannot match during configuration. The industrial -40C to +85C rating matches cabinet-mounted electronics. Use 10uF bulk plus 0.1uF ceramic decoupling per power ball group, and exploit CLKA/CLKB global clocks for low-skew synchronous design.
Recommended
Defense and Aerospace Subsystems
The A54SX72A family is widely used in defense electronics where the -M (military) screened siblings of this industrial part serve the same die. The antifuse OTP architecture provides inherent bitstream secrecy - there is no configuration readback path, so reverse engineering a programmed device is impractical, a decisive advantage over SRAM FPGAs. The A54SX72A-FG256I with its 108K system gates implements bus protocol bridges (MIL-STD-1553 support logic, ARINC interfaces), telemetry formatting, and redundancy/voting logic. Instant-on behavior matters in munitions and avionics where logic must be functional at first power. The 256-ball 17x17 mm FBGA suits conduction-cooled boards with constrained height. Designers should apply Microchip's quadrant clock application notes (CLKA/CLKB/QCLK) for low-jitter timing and plan lot programming plus burnt-in spares because OTP silicon cannot be field-updated.
Recommended
Telecommunications Line Cards
Telecom line cards and backplane adapters benefit from the A54SX72A-FG256I's combination of 203 I/O, 217 MHz-class performance, and low static power inherent to antifuse technology. The device typically fills the control-plane role: backplane address decoding, hot-swap sequencing supervision, LED/alarms handling, and glueless bridging between PHY devices and card microcontrollers. The 2.25V to 5.25V supply range eases integration on legacy 3.3V and 5V shelves. Because configuration is stored in silicon, the line card is operational immediately at shelf power-up, meeting carrier requirements for rapid service restoration. The 256-ball FBGA footprint delivers high I/O density in 17x17 mm for compact card edge placement. Designers should partition timing-critical framing into C-cell/S-cell register paths and verify quadrant clock routing in Microchip Libero before committing the OTP bitstream.
Recommended
Legacy System Sustainment / Obsolete Logic Replacement
A primary use case for the A54SX72A-FG256I is replacing discontinued ASICs, gate arrays, and large 74-series/4000-series logic networks in equipment still in service - medical devices, test instruments, and industrial machinery. The 108K system gates (6036 LAB/CLB structures, 4024 cells) provide ample capacity to absorb entire legacy boards, and the 5V-tolerant, 2.25V-5.25V supply range matches the electrical environment of 1990s-era systems. The 256-ball FBGA can often be adapted to legacy footprints with a simple interposer PCB. Because antifuse programming is permanent, the redesigned function is fixed and qualification-reproducible - important for regulated industries re-certifying a sustained design. Engineers should capture legacy timing at 217 MHz-class budgets, use the SX-A family datasheet ball map, and program first-article devices through Microchip Libero/Designer with full pre-programming simulation.
Recommended
Secure Embedded Controllers
Applications that must resist cloning - licensed equipment, tamper-evident industrial controllers, and pay-per-use machinery - gain real protection from the A54SX72A's antifuse architecture. Unlike SRAM FPGAs whose bitstream exists in external flash and is loaded at every boot, the A54SX72A-FG256I's configuration resides permanently in antifuse interconnects with no readback mechanism, so extracting the design requires destructive delayering. With 108K system gates, designers can embed the product's secret control logic, license enforcement state machines, and proprietary protocol implementations entirely in silicon. The 217 MHz performance ceiling covers typical controller clock domains, and instant-on startup eliminates the configuration window an attacker could otherwise probe. Combine with a secure MCU for software secrets; keep hardware secrets in the FPGA. The industrial -40C to +85C range supports harsh deployments.
Recommended
Test and Measurement Instrumentation
Bench and automated test instruments use the A54SX72A-FG256I as the timing, trigger, and bus-interface engine. The register-rich C-cell/S-cell fabric supports precise trigger state machines and time-stamping counters at 217 MHz-class rates, while 203 I/O accommodates multi-channel probe front ends and parallel instrument buses. Instant-on antifuse configuration means the instrument's logic is ready before the operator's boot sequence completes - no configuration controller to power up. The 2.25V to 5.25V supply range interfaces directly with legacy TTL-level test fixtures common in production lines. The 17x17 mm 256-ball FBGA fits typical 3U/6U instrument boards. Engineers should route measurement clocks on CLKA/CLKB global networks to minimize skew (per Microchip's quadrant clock application notes) and reserve spare I/O balls for future diagnostic hooks before committing the OTP design.
Recommended
Recommended Products Summary
Engineering reference data for A54SX72A-FG256I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX72A-FG256 | A54SX72A-FG256M | A54SX72A-1FGG256 | A54SX72A-2FGG256 |
|---|---|---|---|---|---|
| Package | 256-Ball FBGA (17x17 mm) | 256-Ball FBGA (17x17 mm) - same | 256-Ball FBGA (17x17 mm) - same | 256-Ball FBGA (FGG family) | 256-Ball FBGA (FGG family) |
| Brand | Microchip Technology (Microsemi/Actel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108K | 108K | 108K | 108K | 108K |
| User I/O | 203 | 203 | 203 | 203 | 203 |
| Supply Voltage | 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 |
| Maximum Performance | 217 MHz | 217 MHz | 217 MHz | [DATA_NEEDED] | [DATA_NEEDED] |
| Operating Temperature | -40C to +85C (industrial) | Commercial (0C to +70C) | Military flow (-M) | [DATA_NEEDED] | [DATA_NEEDED] |
| Programming Type | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
Key Differentiators
- Industrial temperature range at standard pricing (vs A54SX72A-FG256)
- Lower screening cost than military flow (vs A54SX72A-FG256M)
- Instant-on secure configuration (vs SRAM FPGAs (Xilinx/Altera equivalents))
- 5V-tolerant wide supply range (vs Modern SRAM FPGAs)
Design Notes
Estimated: the A54SX72A supports 2.25V to 5.25V operation with nominal 2.5V core supply. Budget decoupling per power ball group: place at least one 0.1uF X7R ceramic within 3 mm of each VCC/VCCA ball pair plus 10uF bulk per quadrant. Antifuse FPGAs draw negligible static configuration current, but dynamic current scales with clock fanout - use Microchip Libero power estimation with your actual netlist before finalizing the rail. Because the device is OTP and a mis-programmed part is scrap, verify supply sequencing against the SX-A datasheet before first programming.
The 256-ball FBGA (17x17 mm, 1.0 mm-class pitch) requires a dedicated escape-routing strategy: plan via-in-pad or dog-bone escapes on the outer two ball rows and route inner rows through the board. Define the footprint strictly from the SX-A family datasheet mechanical drawing, not from generic BGA templates - FG256 and FGG256 codings must be verified against the package drawing before tape-out. Use at least 6x6 via stitching under the central ground region for return-current integrity at 217 MHz-class edges.
Use the CLKA and CLKB global clock networks for all high-fanout synchronous elements and reserve QCLK quadrant clocks for regionally confined logic, as detailed in Microchip's 'Using A54SX72A and RT54SX72S Quadrant Clocks' application note. Keep clock sources clean: jitter on global clocks propagates to every register. For 5V-tolerant I/O operating near the 5.25V maximum, series-terminate long lines (22-33 ohm) to control reflections into the 203 user I/O, and confirm per-standard drive current in the datasheet DC tables.
The most costly mistake on this device is treating it as reprogrammable: antifuse configuration is permanent, so a design error consumes silicon. Exhaustively simulate (gate-level with SDF timing), run DRC in Libero/Designer, and program one engineering lot before volume programming. Second pitfall: mixing up FG256 vs FGG256 orderables when ordering replacements - the -I (industrial), -M (military), and speed codings are distinct orderable MPNs and not interchangeable on purchase orders even when the die is identical.
Compliance Information
Compliance data was not present in the retrieved web data. Consult the Microchip product page and Microchip's environmental documentation for RoHS/REACH status of this mature antifuse FPGA.
