A54SX72A-2PQ208I - 108K-Gate Antifuse FPGA, PQFP-208 | Microchip
MPN: A54SX72A-2PQ208I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $128.5 | $128.50 |
| 10 | $116.2 | $1,162.00 |
| 100 | $104.75 | $10,475.00 |
| 500 | $96.4 | $48,200.00 |
| 1,000 | $89.9 | $89,900.00 |
Drop-in alternatives for A54SX72A-2PQ208I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet →A54SX72A-2PQ208I Maximum Ratings & Electrical Characteristics
| Family | SX-A (antifuse FPGA) |
| System Gates | 108000 gates |
| Logic Modules / Cells | 4024 cells |
| Dedicated Flip-Flops | up to 2012 |
| Speed Grade | -2 |
| Maximum System Frequency | 294 MHz |
| User I/O (this package) | 171 |
| Family Maximum User I/O | 360 |
| Supply Voltage | 2.5 V (2.25 V to 5.25 V I/O tolerance range per distributor data) |
| Process Technology | 0.25 um CMOS |
| Programming Technology | Antifuse (one-time programmable) |
| Package | 208-Pin PQFP / BFQFP (28 x 28 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | Industrial (-40C to +85C, I suffix) |
| Packaging | Tray |
| Clock Networks | CLKA, CLKB global plus quadrant QCLK networks |
| Configuration | Non-volatile, active at power-up, no external configuration device |
A54SX72A-2PQ208I 208-pin pqfp / bfqfp (28 x 28 mm) Pin Configuration Guide
Complete pinout information for A54SX72A-2PQ208I (208-pin pqfp / bfqfp (28 x 28 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-2PQ208I.
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-2PQ208I is suitable for 6 applications: Telecommunications Line Cards, Industrial Automation Controllers, Secure and Instant-On System Control, Avionics and High-Reliability Logic, Legacy System Life-Cycle Maintenance, Processor Peripheral Bridging and Glue Logic.
Telecommunications Line Cards
The A54SX72A-2PQ208I fits telecom and networking line-card designs that need glue logic, bus bridging, and state machines at line rates up to 294 MHz with deterministic timing. The antifuse fabric provides fixed interconnect delays, so timing closure on frame-counter and framer-interface logic is predictable, and instant-on operation means the card is active the moment power is applied with no configuration boot delay. Its 171 user I/Os on the PQ208 package handle wide parallel backplane interfaces, and 2.5V-tolerant I/O banking eases interfacing with legacy 3.3V and 5V line-card silicon. Because there is no configuration bitstream, the deployed logic cannot be read back, protecting proprietary framing and protocol IP in carrier equipment.
Recommended
Industrial Automation Controllers
Industrial PLC I/O modules and motion-control interfaces benefit from the A54SX72A-2PQ208I's combination of 108K gates, up to 2012 flip-flops, and industrial temperature rating (-40C to +85C with the I suffix). Encoders, stepper interfaces, and fieldbus glue logic fit comfortably in the 6036-module fabric, and the quadrant QCLK clock network supports multiple independent clock domains for concurrent axis control. The one-time-programmable antifuse configures in zero time at power-up, so machines resume production without configuration latency or corrupted-bitstream risk in electrically noisy factory environments. Designers should budget design verification fully before programming, since antifuse devices cannot be reprogrammed in the field.
Recommended
Secure and Instant-On System Control
Systems requiring design secrecy and immediate availability at power-up - such as key-storage controllers, authentication logic, and boot-sequencing supervisory logic - are a natural fit for the A54SX72A-2PQ208I. The antifuse interconnect is written once at the factory or programming lab and cannot be read back, eliminating the bitstream-interception attack surface inherent to SRAM FPGAs, and there is no external configuration flash to clone or corrupt. Power-up operation is immediate, which matters in supervisory circuits that must gate other rails within milliseconds. The PQ208 footprint's 171 user I/Os give ample margin for monitoring, control, and redundancy signals in high-reliability architectures.
Recommended
Avionics and High-Reliability Logic
High-reliability ground and airborne support equipment commonly specifies SX-A devices because the antifuse fabric has no configuration memory subject to single-event upsets in the configuration store, and it tolerates wide temperature with the industrial I suffix. The A54SX72A-2PQ208I integrates backplane interfaces, ARINC-style glue logic, and built-in-test state machines within its 108K gates, with deterministic routing delays that simplify worst-case timing analysis mandated in safety reviews. Designers should note the device is one-time programmable, so flight-lot programming must occur only after full verification, and should follow Microchip's quadrant clock application notes for the A54SX72A when distributing CLKA, CLKB, and QCLK domains.
Recommended
Legacy System Life-Cycle Maintenance
A primary ongoing use of the A54SX72A-2PQ208I is sustaining legacy platforms originally designed with Actel SX-A silicon. Because the die, pinout, and Libero design flow are unchanged, maintenance teams can re-source the identical MPN (or its green PQG208 variant) to repair or remanufacture aging telecom, medical, and industrial equipment without respinning boards or requalifying logic. Distributor channels including DigiKey and Mouser still list the part as active and shipping as of 2026-09-03, but a mature product line warrants stocking strategy: qualifying A54SX72A-2PQG208I and the -1 speed grade now provides supply-chain flexibility if the classic package goes on last-time-buy.
Recommended
Processor Peripheral Bridging and Glue Logic
The A54SX72A-2PQ208I consolidates address decoders, bus arbiters, interrupt controllers, and memory-interface glue that previously occupied multiple discrete devices, delivering the single-chip cost savings highlighted on Microchip's SX-A product page. With 171 user I/Os and 5V-tolerant I/O capability across the family's supply range, it bridges modern low-voltage processors to legacy 3.3V and 5V peripheral buses directly. Deterministic antifuse routing guarantees fixed propagation delays on handshake paths, which simplifies interface timing verification between asynchronous domains. The instant-on fabric also means bridge logic is alive before the processor's first bus cycle, avoiding missed early accesses during boot.
Recommended
Recommended Products Summary
Engineering reference data for A54SX72A-2PQ208I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX72A-2PQG208I | A54SX72A-1PQG208I | A54SX72A-PQG208I | A54SX72A-2PQ208 | A54SX72A-PQ208I |
|---|---|---|---|---|---|---|
| Package | 208-PQFP (28x28 mm) | 208-PQFP (28x28 mm) - same | 208-PQFP (28x28 mm) - same | 208-PQFP (28x28 mm) - same | 208-PQFP (28x28 mm) - same | 208-PQFP (28x28 mm) - same |
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108000 | 108000 | 108000 | 108000 | 108000 | 108000 |
| Speed Grade / Max Frequency | -2 / 294 MHz | -2 / 294 MHz | -1 (lower) | standard (lower) | -2 / 294 MHz | standard (lower) |
| User I/O | 171 | 171 | 171 | 171 | 171 | 171 |
| Temperature Range | Industrial (-40C to +85C) | Industrial | Industrial | Industrial | Commercial | Industrial |
| Package Material | Classic PQFP | Green (lead-free/halogen-free) | Green (lead-free/halogen-free) | Green (lead-free/halogen-free) | Classic PQFP | Classic PQFP |
| Logic Cells / Flip-Flops | 4024 cells / up to 2012 FF | 4024 cells / up to 2012 FF | 4024 cells / up to 2012 FF | 4024 cells / up to 2012 FF | 4024 cells / up to 2012 FF | 4024 cells / up to 2012 FF |
Key Differentiators
- Fastest SX-A speed grade on the 108K die (vs A54SX72A-1PQG208I)
- Industrial temperature rating (vs A54SX72A-2PQ208)
- Instant-on, readback-protected antifuse fabric (vs Xilinx Spartan-3 / Intel Cyclone II class SRAM FPGAs)
- Green package option available on the same footprint (vs A54SX72A-2PQG208I)
Design Notes
Antifuse FPGAs are one-time programmable: once the A54SX72A-2PQ208I is programmed via Silicon Sculptor, the design cannot be changed. Complete full functional verification and static timing closure in Libero before programming production units, and program pilot units first for system-level validation. Reserve 10-15% of the 108K-gate capacity for ECO fixes, since you cannot revise the fabric afterward - any logic change requires a new physical device. Keep VPP/VCI programming pins per the SX-A datasheet connection requirements even though they are inactive in operation.
Power the core at a regulated 2.5V; SX-A antifuse devices draw very low static current because there is no configuration bitstream memory to refresh, but dynamic power scales with clock frequency and switching activity. Estimated: at heavy utilization and near-294 MHz operation, budget core current per the SX-A datasheet current-versus-frequency tables rather than assuming idle figures. Use solid VDD/GND decoupling - multiple 0.1uF ceramics plus bulk 10uF per power domain - and respect the datasheet power-up ramp-rate requirement to guarantee reliable device initialization at power-on.
Use the dedicated CLKA, CLKB global clocks and the A54SX72A quadrant QCLK resources for clock distribution rather than routing clocks through general fabric, per Microchip's quadrant clock application notes. Place high-fanout clock sources near the dedicated clock pins to minimize skew, and keep wide parallel I/O banks length-matched on the PCB when interfacing to fast buses. Because the PQ208 package has comparatively high lead inductance versus fine-pitch BGAs, add series termination (22-33 ohm) on fast switching outputs to control ringing and undershoot.
Compliance Information
The classic A54SX72A-2PQ208I package predates standard green packaging; the G-suffixed variant A54SX72A-2PQG208I is the green (lead-free/halogen-free) option. Verify exact RoHS/REACH status on the Microchip product page for the specific order code.
