A54SX72A-PQ208M - 108K-Gate SX-A Antifuse FPGA | Microchip
MPN: A54SX72A-PQ208M ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $95 | $95.00 |
| 10 | $88.5 | $885.00 |
| 100 | $81 | $8,100.00 |
| 500 | $74 | $37,000.00 |
| 1,000 | $68 | $68,000.00 |
Drop-in alternatives for A54SX72A-PQ208M — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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View Datasheet →A54SX72A-PQ208M Maximum Ratings & Electrical Characteristics
| Family | SX-A (Antifuse FPGA) |
| System Gates | 108,000 |
| Dedicated Flip-Flops | 2,012 |
| Combinatorial Cells | 4,024 |
| User I/O (this package) | 171 |
| Max User I/O (family) | 360 |
| Supply Voltage (core) | 2.5 V |
| Process Technology | 0.25 um CMOS / 0.22 um |
| Max Toggle Rate | 217 MHz |
| Package | 208-BFQFP (PQ208) |
| Mounting Type | Surface Mount |
| Programming Type | One-Time Programmable (Antifuse) |
| Configuration | Non-volatile, no external boot ROM |
| Clock Networks | CLKA, CLKB global plus quadrant (QCLK) clocks |
A54SX72A-PQ208M 208-bfqfp (pq208) Pin Configuration Guide
Complete pinout information for A54SX72A-PQ208M (208-bfqfp (pq208) 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-PQ208M.
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-PQ208M is suitable for 6 applications: Industrial Control and Automation, Secure Communications and Encryption, Military and Avionics Subsystems, Test and Measurement Equipment, Legacy Board Repair and Obsolescence Management, Single-Chip System Integration / Glue Logic.
Industrial Control and Automation
The A54SX72A-PQ208M integrates PLC glue logic, bus bridges and sequencing functions into a single 108K-gate antifuse chip, replacing multiple ASSP and discrete devices for system-wide cost savings. Its instant-on, non-volatile antifuse configuration means the controller is functional within nanoseconds of power application - no configuration loader, no boot delay and no external flash to corrupt in electrically noisy factory environments. The 171 user I/O in the 208-pin PQFP provides ample parallel interface capacity for backplane and sensor-bank connectivity, and the 2.5V core on a 0.25 um process keeps static power low in always-on control cabinets.
Recommended
Secure Communications and Encryption
Antifuse configuration data cannot be read back from a programmed A54SX72A, giving designers inherent protection against bitstream extraction and IP cloning that SRAM FPGAs cannot match without battery-backed security. This makes the 108K-gate device well suited to encryption engines, authentication blocks and proprietary protocol converters in defense and commercial secure-comms equipment. The device's 217 MHz-class internal toggle capability supports DES/AES-era datapath widths, and quadrant clock networks (CLKA, CLKB, QCLK) allow clean low-skick clocking of multiple independent cipher domains within one chip.
Recommended
Military and Avionics Subsystems
The A54SX72A-PQ208M's non-volatile antifuse fabric is immune to configuration upsets that affect SRAM cells, eliminating the need for configuration scrubbing in flight-critical logic. The device has a documented history in military programs - it carries an NSN (National Stock Number 5962-01-565-2592) and was originally produced by Actel, the supplier of choice for rad-tolerant antifuse FPGAs. Its 208-pin PQFP package supports conventional through-inspection surface-mount assembly used in defense depots, and its 171 user I/O accommodates MIL-STD bus interfaces and parallel data converters common in avionics line-replaceable units.
Recommended
Test and Measurement Equipment
Bench instruments and ATE fixtures frequently need flexible sequencing, trigger logic and bus translation that the A54SX72A-PQ208M handles with its 108K gates and 2,012 flip-flops. Instant-on operation means the instrument is ready as soon as power stabilizes - important for equipment that must capture events at power-up. The PQFP package's gull-wing leads simplify rework in low-volume instrument production, and the low static power of the 0.25 um antifuse process keeps self-heating inside a closed instrument enclosure minimal, reducing calibration drift of adjacent analog circuitry.
Recommended
Legacy Board Repair and Obsolescence Management
Thousands of deployed industrial, medical and defense boards use the A54SX72A in the 208-pin PQFP, and repairs demand a pin-compatible, re-programmable-with-original-design substitute. Same-family variants such as A54SX72A-PQG208M and A54SX72A-PQG208I drop directly onto the existing 208-BFQFP footprint with zero PCB changes. Because antifuse devices ship blank, maintenance depots must keep the original design files and a Silicon Sculptor programmer in the repair loop - a logistics consideration that should be planned before the last-time-buy window closes on this legacy product line.
Recommended
Single-Chip System Integration / Glue Logic
Microchip positions the SX-A family explicitly as a way to 'generate system-wide savings by integrating multiple functions into a low cost, single-chip solution.' The A54SX72A-PQ208M consolidates address decoders, bus arbiters, state machines and interface translators that previously occupied a rack of 74xx logic into one 108K-gate device. This reduces board area, BOM line items and assembly cost, while the non-volatile antifuse fabric removes the external configuration flash that SRAM FPGA glue logic would require. The 2.5V core also simplifies power-tree design relative to mixed-supply modern FPGAs.
Recommended
Recommended Products Summary
Engineering reference data for A54SX72A-PQ208M — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX72A-PQG208M | A54SX72A-1PQG208I | A54SX32A-PQG208M |
|---|---|---|---|---|
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 208-Pin PQFP (208-BFQFP) | 208-Pin PQFP - same | 208-Pin PQFP - same | 208-Pin PQFP - same |
| System Gates | 108,000 | 108,000 | 108,000 | 36,000 |
| Dedicated Flip-Flops | 2,012 | 2,012 | 2,012 | [DATA_NEEDED] |
| User I/O | 171 | 171 | 171 | [DATA_NEEDED] |
| Core Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Speed Grade | Standard | Standard | Speed grade 1 (faster) | Standard |
| Temperature Range | Commercial | Commercial | Industrial | Commercial |
| Programming | One-time programmable antifuse | Antifuse OTP | Antifuse OTP | Antifuse OTP |
Key Differentiators
- Full 108K-gate density in the same 208-pin PQFP footprint (vs A54SX32A-PQG208M)
- Industrial temperature option available (vs A54SX72A-PQG208M)
- Inherent configuration security (vs Any SRAM FPGA equivalent)
- Faster timing grade as a drop-in upgrade (vs A54SX72A-PQ208M (standard grade))
Design Notes
Antifuse devices are one-time programmable: a design error after programming renders the physical device unusable. Complete full functional simulation and post-place-and-route static timing analysis in Libero/Designer before releasing the design to the Silicon Sculptor programmer. Budget for a programming yield margin (typically one spare device per 5-10 programmed units) in production planning.
The A54SX72A runs from a 2.5V core supply on a 0.25 um CMOS process with low static current. Provide solid 2.5V decoupling (0.1 uF ceramic per power pin group plus bulk capacitance) and verify inrush during antifuse programming, which differs from normal operating current. When interfacing to 3.3V logic, check I/O tolerance limits in the SX-A datasheet electrical characteristics before direct connection.
Use the dedicated global clock resources (CLKA, CLKB) and quadrant clocks (QCLK) rather than general-purpose routing for clock distribution; Microchip application notes on A54SX72A quadrant clocks describe the supported macros and skew characteristics. Keep clock trace lengths matched on the PCB and avoid routing clocks adjacent to wide switching buses to preserve timing margin at design frequencies approaching the family limits.
The 208-pin PQFP has 0.5 mm pitch gull-wing leads. Follow IPC-recommended land patterns, and allow keep-out areas around the package for inspection and rework access. Because PQFP leads are mechanically compliant, avoid board flex during assembly; a damaged lead on an OTP device can force scrapping the entire programmed part.
Compliance Information
Compliance status for the legacy PQ208M suffix was not stated in the provided web data. Green/RoHS-style PQG208 variants exist in the family; verify plating and compliance on the Microchip product page or ordering code before specifying for new builds.
