A54SX72A-FG484I - 108K-Gate Antifuse FPGA, 484 FBGA | Microchip
MPN: A54SX72A-FG484I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $272.15 | $272.15 |
| 10 | $258.54 | $2,585.40 |
| 100 | $244.94 | $24,494.00 |
| 500 | $231.33 | $115,665.00 |
| 1,000 | $217.72 | $217,720.00 |
Drop-in alternatives for A54SX72A-FG484I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX72A-FG484M
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$254 / Unit
View Datasheet →A54SX72A-FG484M
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$254 / Unit
View Datasheet →A54SX72A-FGG484I
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$115 / Unit
View Datasheet →A54SX72A-1FGG484I
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$225 / Unit
View Datasheet →A54SX72A-2FGG484I
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$112 / Unit
View Datasheet →A54SX72A-1FGG484M
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$73.4 / Unit
View Datasheet →A54SX72A-FG484I Maximum Ratings & Electrical Characteristics
| Family | SX-A (Antifuse FPGA) |
| System Gates | 108000 gates |
| Logic Cells / Modules | 6036 cells |
| User I/O | 360 |
| Core Supply Voltage | 2.5 V |
| Max System Frequency (std speed) | 217 MHz |
| Process Technology | 0.25um/0.22um CMOS |
| Programmability | One-time programmable (antifuse) |
| Package | 484-ball FBGA (1.0 mm pitch) |
| Mounting Type | Surface Mount |
| Operating Temperature | Industrial (I suffix), -40C to +85C |
| RoHS Status | RoHS Compliant |
| Clock Resources | CLKA, CLKB, QCLK quadrant clock networks |
| Configuration | Non-volatile, no external configuration device |
| Manufacturer Part Suffix | FG484 = 484-ball FBGA, I = industrial temperature |
| Power | Low-power 2.5V operation |
A54SX72A-FG484I 484-ball fbga (1.0 mm pitch) Pin Configuration Guide
Complete pinout information for A54SX72A-FG484I (484-ball fbga (1.0 mm pitch) 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-FG484I.
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-FG484I is suitable for 6 applications: Industrial Control and Automation, Aerospace and Defense Electronics, Telecommunications Line Cards, Test and Measurement Instrumentation, Single-Chip Function Integration (ASIC Prototyping and Bridging), Secure Data-Path and Anti-Tamper Systems.
Industrial Control and Automation
The A54SX72A-FG484I fits industrial controllers because its industrial temperature rating (-40C to +85C) covers factory-floor extremes, and its 360 user I/O absorbs the wide parallel buses typical of PLC backplanes and motor-control interface cards. In a typical design the FPGA sits between a processor local bus and field-side I/O modules, using its 6,036 logic cells for address decoding, handshaking, and glue logic that previously required several discrete devices. Because the antifuse configuration is non-volatile, the board boots instantly with no configuration controller, improving fault recovery after power interruptions. The 2.5V core keeps dynamic power modest in always-on installations. Engineers should note the one-time-programmable nature: fix firmware functionality before programming and hold spare devices for field service.
Recommended
Aerospace and Defense Electronics
Defense programs choose the A54SX72A-FG484I because the antifuse interconnect cannot be read back after programming, giving inherent protection of proprietary or mission logic, and a military-grade sibling (A54SX72A-FG484M) exists on the identical FBGA-484 footprint for extended-temperature builds. The one-time-programmable configuration also eliminates configuration-image corruption concerns of SRAM FPGAs in high-reliability platforms. In avionics line-replaceable units the device commonly implements bus bridging, deterministic sequencers, and sensor-interface aggregation, exploiting fixed pin-to-pin timing from the antifuse routing. For radiation environments, designers should evaluate Microchip RT54SX radiation-tolerant variants rather than assuming commercial rad performance. Production planning must account for OTP: any logic change requires physically swapping the programmed device.
Recommended
Telecommunications Line Cards
Telecom line cards benefit from the A54SX72A-FG484I's combination of 360 user I/O and deterministic timing, both critical when interfacing TDM backplanes, HDLC framers, and backhaul parallel buses. The 484-ball FBGA with 1.0 mm pitch packs a large I/O count into a compact footprint suited to high-density rack-mounted cards. The 108,000-gate capacity implements framing, switching matrices, and board-level control, while the quadrant clock networks (CLKA, CLKB, QCLK) described in Microchip's SX-A datasheet support multiple clock domains typical of telecom systems. Non-volatile antifuse configuration lets a card come up immediately after a shelf power cycle without loading a bitstream from external flash, reducing outage time. Verify signal-integrity budgets on the 2.5V-class I/O banks for high-speed links.
Recommended
Test and Measurement Instrumentation
Test and measurement equipment uses the A54SX72A-FG484I as a flexible timing, triggering, and bus-interface engine. The standard speed grade's system performance around 217 MHz class and fixed antifuse routing delays give repeatable trigger timing between instruments and production units, something reprogrammable FPGAs approximate only with careful floorplanning. With 6,036 logic cells and 360 I/O, one device replaces counters, comparators, pattern generators, and interface glue across GPIB-style parallel buses and module backplanes. The industrial temperature grade tolerates rack environments, and the non-volatile configuration means the instrument is ready the instant power is applied. Because the device is one-time programmable, instrument firmware changes during R&D require new devices; prototype with simulation and, if possible, with a reprogrammable platform before committing.
Recommended
Single-Chip Function Integration (ASIC Prototyping and Bridging)
Microchip positions SX-A devices for system-wide savings by integrating multiple functions into a low-cost single-chip solution. The A54SX72A-FG484I serves this role for board consolidations where several ASSP-style glue functions, buffers, decoders, and bus transceivers are merged into one 108,000-gate device, cutting BOM count and board area. Its 0.25um/0.22um antifuse CMOS process and 2.5V supply deliver low static power for always-on bridges. Compared with an ASIC, the FPGA offers no mask charges and fast turnaround; compared with SRAM FPGAs, it adds configuration security and removes the external boot flash. The trade-off is OTP: design freezes must be firm. For new designs, evaluate Microchip's newer FPGA families, as SX-A supports existing designs primarily.
Recommended
Secure Data-Path and Anti-Tamper Systems
Security-focused systems exploit the A54SX72A-FG484I's antifuse architecture: once programmed, there is no configuration bitstream in the system to read back, and the routing exists only as permanent programmed connections inside the die. This makes the device attractive for key-handling pipelines, secure boot companions, and board-level logic that must resist casual reverse engineering. The industrial-grade FG484I variant covers extended enclosures, while the military FG484M variant on the same footprint supports harsher platforms. Designers should combine the device's inherent readback resistance with board-level tamper measures, since OTP security does not replace a full anti-tamper program. Note that logic errors cannot be patched in the field; maintain secure custody of programmed spares and version-controlled programming files.
Recommended
Recommended Products Summary
Engineering reference data for A54SX72A-FG484I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX72A-FG484 | A54SX72A-FG484M | A54SX72A-FGG484I | A54SX72A-1FGG484I | A54SX72A-2FGG484I |
|---|---|---|---|---|---|---|
| Package | 484-ball FBGA | 484-ball FBGA - same | 484-ball FBGA - same | 484-ball FBGA - same | 484-ball FBGA - same | 484-ball FBGA - same |
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108000 | 108000 | 108000 | 108000 | 108000 | 108000 |
| Logic Cells | 6036 | 6036 | 6036 | 6036 | 6036 | 6036 |
| User I/O | 360 | 360 | 360 | 360 | 360 | 360 |
| Core Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Temperature Grade | Industrial (I) | Commercial | Military (M) | Industrial (I) | Industrial (I) | Industrial (I) |
| Speed Grade | Standard (~217 MHz class) | Standard | Standard | Standard | -1 (slower) | -2 (faster) |
| RoHS / Lead Finish | RoHS Compliant | [DATA_NEEDED] | [DATA_NEEDED] | Lead-free FGG designation | Lead-free FGG designation | [DATA_NEEDED] |
Key Differentiators
- Inherent configuration security (vs SRAM-based FPGAs (generic))
- Footprint-compatible military and lead-free variants (vs A54SX72A-FG484M)
- Speed-grade flexibility without redesign (vs A54SX72A-2FGG484I)
Design Notes
Decouple the 2.5V core rail with a network of ceramic capacitors (mix of bulk 10uF and local 0.1uF/0.01uF) placed as close as possible to the FBGA-484 power balls. Antifuse FPGAs draw static current on every permanently programmed path, so measure actual board current with your programmed design rather than relying on generic estimates. Follow the power-supply sections of the Microchip SX-A family datasheet (sxa_ds.pdf) for pin assignments and recommended decoupling.
The A54SX72A is one-time programmable. Do not treat it like an SRAM FPGA: there is no rework path after programming, so complete timing simulation, functional verification, and test-pattern sign-off before sending devices to the programmer. Order devices with the correct suffix combination in one step: FG484 package code, I industrial temperature, and the required speed grade (-1, -2, or standard). Mixing up speed grades mid-project forces footprint-compatible but timing-different substitutions.
The quadrant clock resources (CLKA, CLKB, QCLK) documented in Microchip's SX-A datasheet and the 'Using A54SX72A Quadrant Clocks' application notes should carry your primary clock domains; routing clocks on general interconnect adds skew and consumes routing resources. With 360 user I/O on a 1.0 mm pitch BGA, plan breakout via geometry carefully - use microvias or dogleg fanout patterns to escape inner balls, and assign high-speed signals to perimeter balls during pin planning in Libero IDE.
The 484-ball FBGA requires controlled assembly: specify a lead-free (or matching lead finish) reflow profile consistent with the ball finish of the purchased variant, and inspect with X-ray given hidden BGA joints. Use solder-mask-defined or non-solder-mask-defined pads per Microchip's package outline drawing in the SX-A datasheet. For replacement flows, the FGG (lead-free) and FG variants share the same footprint but verify wetting behavior when qualifying the alternate for your assembly line.
Compliance Information
FindIC lists A54SX72A-FG484I as ROHS COMPLIANT. Lead finish detail for the FG (vs FGG) designation is not specified in provided data.
