A54SX72A-FPQ208 - 108K-Gate Antifuse FPGA, 171 I/O | Microchip
MPN: A54SX72A-FPQ208 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $248 | $248.00 |
| 10 | $226 | $2,260.00 |
| 100 | $198 | $19,800.00 |
| 500 | $182 | $91,000.00 |
| 1,000 | $169 | $169,000.00 |
Drop-in alternatives for A54SX72A-FPQ208 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet →A54SX72A-FPQ208 Maximum Ratings & Electrical Characteristics
| Family | SX-A (Antifuse FPGA) |
| System Gates | 108,000 |
| Typical Usable Gates | Up to 72,000 |
| User I/O Pins | 171 |
| Configurable Logic Blocks | 6036 |
| Process Technology | 0.25 um CMOS |
| Programmability | Antifuse, One-Time Programmable (OTP) |
| Package | 208-BFQFP, 28 x 28 mm |
| Mounting Type | Surface Mount |
| I/O Standards | TTL, LVTTL, LVCMOS2, 3.3 V PCI, 5 V PCI |
| Clock Networks | Quadrant clock inputs CLKA-CLKD with global distribution |
| Speed Grade | F (standard) |
A54SX72A-FPQ208 208-bfqfp, 28 x 28 mm Pin Configuration Guide
Complete pinout information for A54SX72A-FPQ208 (208-bfqfp, 28 x 28 mm package) with 171 pins. 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-FPQ208.
Refer to the datasheet for full pin configuration.
Estimated pin count: 171 pins (digital package)
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-FPQ208 is suitable for 6 applications: Industrial Control and Automation, Communications and Networking Interface Logic, Aerospace and Defense Secure Logic, Legacy System Life-Cycle Management, Test and Measurement Instrumentation, Medical Equipment Control Logic.
Industrial Control and Automation
The A54SX72A-FPQ208 integrates multiple glue-logic, interface-bridging, and sequencing functions into one 108,000-gate antifuse FPGA, which is valuable in industrial controllers where board space, power, and long-term configuration integrity matter. Its 171 user I/O pins, compatible with 5 V PCI and TTL levels, connect directly to legacy PLC I/O buses, motor-controller status lines, and 24 V-isolated interface logic through standard buffers. Because the antifuse configuration is permanent, a controller booted after a power cycle is instantly functional with no configuration device to fail. Place it between the main CPU and fieldbus transceivers, using the quadrant clock inputs (CLKA-CLKD) to distribute a clean system clock; the low-capacitance antifuse routing keeps clock skew low across the fabric, supporting deterministic I/O timing in factory automation and process-control equipment.
Recommended
Communications and Networking Interface Logic
In networking line cards and backplane interface boards, the A54SX72A-FPQ208 provides protocol glue logic, bus width conversion, and address decoding at high speed thanks to the SX-A architecture's low-junction-capacitance antifuse interconnect. The 171 user I/O support TTL, LVTTL, LVCMOS2, and PCI-compatible signaling, letting one device bridge 5 V PCI mezzanine buses to 3.3 V LVCMOS2 payload logic. The four quadrant clock inputs feed dedicated global clock networks, so receive and transmit quadrants can each receive low-skew clocks for synchronous FIFO and framing logic. Designers typically implement the device between a PHY or MAC and the backplane interface, where the one-time-programmable configuration guarantees the deployed bitstream cannot be altered in the field - a meaningful reliability and security property for telecom infrastructure with long service lives.
Recommended
Aerospace and Defense Secure Logic
The A54SX72A-FPQ208 family is widely used in aerospace and defense electronics where configuration security is mandatory: the antifuse bitstream is written once, is not readable back, and survives power cycling and radiation events better than SRAM configuration in comparable eras of technology. For avionics boxes, the 108,000-gate capacity implements MIL-STD-style bus interface state machines, built-in-test logic, and voter/arbitration circuits, with 171 I/O connecting to 5 V-tolerant and 3.3 V subsystems. For programs requiring military screening, the pin-compatible A54SX72A-PQG208M variant provides the M-suffix qualification on the identical footprint, allowing one PCB layout to serve commercial prototypes and qualified production builds. Microchip's quadrant-clock application notes for the A54SX72A and RT54SX72S document how to exploit the four CLKA-CLKD inputs for redundant, low-skew clock distribution in safety-critical designs.
Recommended
Legacy System Life-Cycle Management
When a discontinued ASSP, gate array, or custom logic device must be replaced to keep an legacy platform in service, the A54SX72A-FPQ208 offers a practical FPGA-based emulation target: up to 72,000 usable typical gates accommodate most medium-complexity legacy ASIC functions, and the 208-pin QFP footprint matches many legacy packages so adapter risk is low. Because the design is programmed once and locked, the emulated part behaves identically in every shipped unit for the rest of the program life - no firmware drift, no configuration corruption, and no unauthorized modification. Its I/O standards spanning TTL through 5 V PCI allow direct connection to the original board's signaling levels, frequently eliminating level-shifting redesign. Engineering teams typically validate the reverse-engineered design in simulation and on a larger SX-A or reprogrammable device before committing the OTP production units.
Recommended
Test and Measurement Instrumentation
Bench instruments and automated test equipment benefit from the A54SX72A-FPQ208's combination of wide I/O (171 pins), deterministic timing, and instant-on operation. The device commonly implements trigger state machines, timing generators, pattern generators, and bus mastering between the instrument CPU and measurement front ends. The antifuse fabric's low routing capacitance supports fast, repeatable path delays - important when trigger-to-measurement latency must be consistent run-to-run. Quadrant clocking via CLKA-CLKD lets acquisition and stimulus sections run on independent low-skew clock domains within one chip. Because the configuration is fixed, calibration routines can rely on stable internal routing delays over the instrument's service life, unlike SRAM FPGAs whose timing is fixed too but whose configuration storage adds a failure point. Use 3.3 V LVCMOS2 I/O banks to interface modern data converters and 5 V PCI/TTL levels for control backplanes.
Recommended
Medical Equipment Control Logic
Medical devices such as imaging consoles, infusion systems, and laboratory analyzers require control logic that powers up instantly, behaves identically across all shipped units, and resists unauthorized modification - properties the A54SX72A-FPQ208 delivers through its one-time-programmable antifuse configuration. The 108,000-gate capacity integrates front-panel sequencing, safety interlock state machines, and host-interface glue logic in a single 28 x 28 mm chip, and the 171 user I/O support the mixed TTL and 3.3 V signaling commonly found in medical backplanes. Deterministic power-up with no configuration loader simplifies IEC 60601-oriented risk analysis by removing a boot-failure mode associated with external configuration memories. For hospital-environment ambient conditions the commercial FPQ208 grade is adequate; for equipment with extended environmental requirements, the same die is available as A54SX72A-PQG208I with industrial temperature range on an identical footprint.
Recommended
Recommended Products Summary
Engineering reference data for A54SX72A-FPQ208 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX72A-FPQG208 | A54SX72A-PQ208 | A54SX72A-PQG208I | A54SX72A-PQG208M |
|---|---|---|---|---|---|
| Package | 208-BFQFP (28 x 28 mm) | 208-BQFP (28 x 28 mm) - same | 208-PQFP (28 x 28 mm) - same footprint | 208-PQFP green (28 x 28 mm) - same footprint | 208-PQFP green (28 x 28 mm) - same footprint |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 108,000 | 108,000 | 108,000 | 108,000 | 108,000 |
| User I/O | 171 | 171 | 171 | 171 | 171 |
| Temperature Range | Commercial [DATA_NEEDED: exact range] | Commercial [DATA_NEEDED: exact range] | Commercial | Industrial (-40C to +85C) | Military screening |
| Package Build | Fine-pitch (F) standard build | Green / RoHS build | Standard PQFP | Green / RoHS build | Green build, M-screened |
| Programmability | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP |
| Relative Cost | Baseline | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | Highest (military screening) |
Key Differentiators
- Configuration security by physics (vs SRAM-based FPGAs)
- Industrial and military variants on the identical footprint (vs A54SX72A-FPQG208 / A54SX72A-PQG208I)
- Legacy 5 V bus compatibility (vs Modern SRAM FPGA families)
Design Notes
The A54SX72A is one-time programmable: once the antifuse array is blown, the device cannot be corrected or reprogrammed. Complete full functional simulation and, ideally, validate the design on a reprogrammable platform or a larger SX-A device before programming production units. Order prototype quantities of the same speed grade you will ship, and program a small pilot lot first. Pin-point the exact Microchip programming file generation flow (Designer software) to avoid a mismatch between the compiled netlist and the device ordering code.
Use the four quadrant clock inputs (CLKA, CLKB, CLKC, CLKD) deliberately: per the SX-A datasheet they map to the bottom-left, bottom-right, top-left, and top-right quadrants of the A54SX72A. Place clock-sensitive registers physically near the quadrant whose clock input they use to minimize skew, and drive each quadrant clock from a clean, low-jitter source. Mixing I/O standards (5 V PCI and LVCMOS2) is supported, but group banks by standard to keep ground bounce predictable on simultaneous switching outputs.
The 208-pin, 28 x 28 mm BFQFP has 0.5 mm-pitch leads; design land patterns per the SX-A datasheet package drawing and inspect solder joints with X-ray or angled AOI, since fine-pitch QFP joints hide bridges. Decouple every VCC/VDDA pin pair with 0.1 uF ceramics placed within 2 mm of the pin, plus bulk 10 uF at board corners. Provide a solid ground plane under the device; the exposed die paddle of the QFP center is mechanical only, but the ground plane is essential for the return path of the 171 I/O drivers.
Compliance Information
The G-suffix variants (e.g., A54SX72A-FPQG208, A54SX72A-PQG208) denote Microchip green-package builds typically used for RoHS/lead-free compliance. Exact RoHS/REACH status for the FPQ208 build should be confirmed via Microchip environmental documentation.
