A54SX72A-2FG484I - 108K Gate Antifuse FPGA 484 FBGA | Microchip
MPN: A54SX72A-2FG484I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $285 | $285.00 |
| 10 | $262 | $2,620.00 |
| 100 | $238 | $23,800.00 |
| 500 | $214 | $107,000.00 |
| 1,000 | $196 | $196,000.00 |
Drop-in alternatives for A54SX72A-2FG484I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet →A54SX72A-2FG484I Maximum Ratings & Electrical Characteristics
| Family | SX-A (Antifuse FPGA) |
| System Gates | 108000 gates |
| Logic Cells (Modules) | 6036 |
| Maximum Toggle Frequency | 294 MHz |
| User I/O | 360 |
| Core Voltage | 2.5 V |
| I/O Voltage Support | 2.5 V, 3.3 V, 5 V |
| Process Technology | 0.25 um / 0.22 um CMOS antifuse |
| Programmability Type | One-Time Programmable (antifuse), nonvolatile |
| Speed Grade | -2 |
| Package | 484-ball FBGA (FG484) |
| Mounting Type | Surface Mount |
| Temperature Grade | Industrial (I) |
A54SX72A-2FG484I 484-ball fbga (fg484) Pin Configuration Guide
Complete pinout information for A54SX72A-2FG484I (484-ball fbga (fg484) 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-2FG484I.
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-2FG484I is suitable for 6 applications: Industrial Control and Automation, Defense and Avionics Systems, Communications Line-Card Logic, Legacy System Obsolescence Redesign, Test and Measurement Instrumentation, Secure Embedded Controllers.
Industrial Control and Automation
The A54SX72A-2FG484I fits industrial control because its 360 user I/Os with 2.5 V, 3.3 V, and 5 V support bridge legacy 5 V backplanes and sensors that modern SRAM FPGAs cannot tolerate directly. The industrial temperature grade and nonvolatile antifuse configuration mean the logic is active at power-up with no boot device, meeting strict equipment startup requirements. In a PLC or motor-controller card, it implements glue logic, bus interfaces, and sequencing between microprocessors and power stages. The trade-off is one-time programmability, so design freezes must be verified before production programming.
Recommended
Defense and Avionics Systems
The A54SX72A-2FG484I suits defense and avionics platforms because antifuse configuration cannot be read back or altered in the field, eliminating bitstream-interception attack surfaces inherent to SRAM FPGAs. Deterministic timing with no configuration uncertainty simplifies DO-style design assurance documentation, and the 108,000-gate capacity integrates bus interfaces, telemetry framing, and discrete I/O on a single chip. The 5 V-tolerant I/O directly interfaces legacy mil-standard signal rails. Designers must budget for one-time-programmable logistics: every design iteration consumes a new device, so simulation sign-off precedes programming.
Recommended
Communications Line-Card Logic
In telecom and datacom line cards, the A54SX72A-2FG484I implements framer glue logic, backplane interfaces, and clock-domain crossing logic at toggle rates up to 294 MHz. The 360 I/Os fan out across dense board-level buses, and quadrant clock networks (CLKA, CLKB, QCLK per the SX-A datasheet) support per-card clock domains without excessive global clock loading. Low dynamic power of the antifuse fabric eases line-card thermal budgets compared with denser SRAM devices. The nonvolatile fabric removes configuration PROMs from the BOM, improving card reliability in always-on network equipment.
Recommended
Legacy System Obsolescence Redesign
When obsolete PAL, GAL, or smaller CPLD clusters must be consolidated, the A54SX72A-2FG484I provides 108,000 gates of single-chip integration with 5 V-compatible I/O that interfaces directly to aging TTL-level boards. Because antifuse configuration is permanent, the redesigned board behaves identically on every power cycle, easing requalification of certified or long-lifecycle equipment such as rail, energy, and medical platforms. One design consideration: pin-migration differences between the original discrete logic and the FG484 ball map require a PCB respin, so the FPGA should be chosen early in the redesign.
Recommended
Test and Measurement Instrumentation
Bench and ATE instruments use the A54SX72A-2FG484I for timing generators, pattern capture, and bus-interface logic. The 294 MHz toggle rating and deterministic antifuse interconnect delays allow predictable trigger and strobe alignment without software timing recalibration, since routing never changes between units. The 360 I/Os connect dense measurement channels, and 5 V-tolerant banks interface with legacy instrument front ends. Because the configuration is fixed at manufacture, calibration firmware changes are handled in an adjacent processor rather than the FPGA fabric - plan for this architectural split during design.
Recommended
Secure Embedded Controllers
Security-conscious embedded controllers adopt the A54SX72A-2FG484I because the antifuse fabric offers no configuration readback path, protecting proprietary logic and key-handling state machines from extraction. Instant-on behavior means secure boot logic is active before any processor begins execution, enabling root-of-trust designs without an external configuration store. The 108,000-gate capacity accommodates crypto-interface wrappers and multi-bank I/O isolation. Designers should note that one-time programmability requires careful pre-silicon verification, and any security-patch update to the FPGA fabric requires board-level replacement rather than remote firmware update.
Recommended
Recommended Products Summary
Engineering reference data for A54SX72A-2FG484I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX72A-2FGG484I | A54SX72A-FG484I | A54SX72A-FGG484I | |
|---|---|---|---|---|---|
| Package | 484-ball FBGA (FG484) | 484-ball FBGA - same | 484-ball FBGA - same | 484-ball FBGA - same | |
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | |
| System Gates | 108000 gates | 108000 gates | 108000 gates | 108000 gates | |
| Logic Cells | 6036 | 6036 | 6036 | 6036 | |
| Max Toggle Frequency | 294 MHz | 294 MHz | 217 MHz | 217 MHz | |
| User I/O | 360 | 360 | 360 | 360 | |
| Temperature Grade | Industrial (I) | Industrial (I) | Industrial (I) | Industrial (I) | Commercial |
| Package Finish Option | Standard FG484 | Green (G) package | Standard package | Green (G) package | |
| Programmability | Antifuse, one-time programmable | Antifuse, one-time programmable | Antifuse, one-time programmable | Antifuse, one-time programmable |
Key Differentiators
- Fastest speed grade in the 484-ball FG484 SX-A lineup (vs A54SX72A-FG484I)
- Nonvolatile antifuse configuration with no boot PROM (vs SRAM-based Xilinx/Intel FPGAs)
- 5 V-tolerant I/O banks on 360 user I/Os (vs A54SX72A-2FGG484I)
- Largest SX-A die for single-chip integration (vs A54SX32A-FGG484)
Design Notes
The antifuse fabric is one-time programmable: after programming, the A54SX72A-2FG484I cannot be erased or reconfigured. Complete timing simulation, functional verification, and - ideally - a prototype-programmed validation unit before committing production devices. Any design change consumes a new physical part, so order pilot quantities separately from production volume. This is the single most costly mistake in antifuse FPGA projects and is emphasized throughout Microchip's SX-A design flow documentation.
The device runs a 2.5 V core with I/O banks supporting 2.5 V, 3.3 V, and 5 V. Assign I/O standards per bank early, because bank voltage is fixed by the ball assignment and cannot be changed after programming. Antifuse fabrics draw low static power, but dynamic power scales with toggle rate - at 294 MHz on heavily used routing, budget supply decoupling with bulk and 0.1 uF ceramic capacitors at each VDD ball pair. Verify current draw in the Libero power estimator before finalizing the regulator design.
The 484-ball fine-pitch BGA requires controlled-impedance multilayer PCB fabrication with via-in-pad or dogbone fanout. Follow Microchip's FG484 package layout guidelines for ball pitch escape routing; typical fanout needs at least four signal layers plus dedicated ground and power planes. Place 0.1 uF decoupling capacitors within 2 mm of supply ball vias. For rework, the FBGA demands a BGA rework station - plan inspection with X-ray after reflow since solder joints under the package are invisible optically.
Use the CLKA, CLKB, and QCLK global and quadrant clock networks for all timing-critical signals rather than general-purpose routing, per Microchip's quadrant clocks application notes for the A54SX72A. Keep high-fanout clocks off local routing to avoid skew. For 5 V-tolerant I/O interfacing legacy buses, add series termination (22-33 ohm) on long traces to control reflections, since antifuse I/O structures lack the programmable terminations of modern SRAM FPGA banks.
Compliance Information
The 'G' suffix variants (e.g., A54SX72A-2FGG484I) denote Microchip green-package options; the standard FG484 package compliance status should be confirmed from the Microchip product page or datasheet.
