A54SX16A-1PQG208 - 24K Gate SX-A FPGA, 175 I/O | Microchip
MPN: A54SX16A-1PQG208 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $42.5 | $42.50 |
| 10 | $38.9 | $389.00 |
| 100 | $35.2 | $3,520.00 |
| 500 | $32.8 | $16,400.00 |
| 1,000 | $30.5 | $30,500.00 |
Drop-in alternatives for A54SX16A-1PQG208 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX16A-1PQG208M
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View Datasheet →A54SX16A-PQG208A
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View Datasheet →A54SX16A-PQG208M
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$451.23 / Unit
View Datasheet →A54SX16A-2PQG208
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View Datasheet →A54SX16A-1PQG208A
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A54SX32A-1PQG208M
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View Datasheet →A54SX32A-2PQG208I
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$47.95 / Unit
View Datasheet →A54SX16A-1PQG208 Maximum Ratings & Electrical Characteristics
| Family | SX-A (Actel/Microsemi antifuse FPGA) |
| System Gates | 24000 |
| Logic Cells / CLBs | 1452 |
| User I/O | 175 |
| Max Toggle Frequency | 263 MHz |
| Input Setup Time | 1.2 ns |
| Supply Voltage | 2.25 V to 5.25 V |
| Speed Grade | -1 |
| Programmable Type | OTP (antifuse) |
| Package | 208-BFQFP (PQFP-208) |
| Lead Pitch | 0.5 mm |
| Mounting Type | Surface Mount (SMD/SMT) |
| Standard Package Quantity | 24 (Tray) |
| Process Technology | CMOS |
| RoHS Status | RoHS Compliant |
| Configuration Support | No external configuration device required (OTP) |
A54SX16A-1PQG208 24 (tray) Pin Configuration Guide
Complete pinout information for A54SX16A-1PQG208 (24 (tray) 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 A54SX16A-1PQG208.
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
A54SX16A-1PQG208 is suitable for 6 applications: Industrial Control and Automation, Telecommunications Line Cards, Military and Aerospace Legacy Systems, Embedded Glue Logic Consolidation, Test and Measurement Instrumentation, Medical Device Legacy Sustainment.
Industrial Control and Automation
The A54SX16A-1PQG208 fits industrial control applications where deterministic, instant-on logic replaces multiple PLDs and discrete glue chips. Its 2.25V to 5.25V supply tolerance rides through noisy 5V and 3.3V factory rails without level translators, while the 175 user I/O handle parallel fieldbus, encoder, and sensor interfaces. The antifuse OTP fabric eliminates configuration-upset risk from electrical noise and powers up functional within microseconds, unlike SRAM FPGAs that need a boot cycle. With a 263 MHz toggle ceiling and 1452 CLBs, it consolidates PLC I/O logic, motion control state machines, and backplane bridging into a single 208-pin PQFP, cutting BOM count and board area while providing ASIC-like reliability for long-lifetime industrial equipment.
Recommended
Telecommunications Line Cards
The A54SX16A-1PQG208 serves telecom line-card designs that need fast, deterministic control logic between PHY devices and backplanes. Its antifuse routing gives deterministic delays critical for fixed-timing interfaces, and the 263 MHz toggle rate with 1.2 ns-class input setup comfortably covers T1/E1 framing, HDLC processing, and backplane handshaking at DS3-class rates. The 175 I/O density supports wide parallel buses to line interface chips, and 5V-tolerant CMOS I/O connects directly to legacy 5V line-card components. As an OTP device it starts instantly at hot-swap power-up with no configuration delay, and its low static antifuse power helps thermal budgets in high-slot-density chassis where every watt per card is constrained.
Recommended
Military and Aerospace Legacy Systems
Antifuse FPGAs like the A54SX16A-1PQG208 are staples of defense and aerospace sustainment programs because their one-time-programmed configuration cannot be upset by radiation-induced configuration flips and cannot be read back, providing inherent design security. The device's instant power-up suits systems with strict initialization timing, and its 5V-tolerant I/O interfaces with legacy MIL-spec 5V logic families still present in avionics buses. With 24,000 gates and 175 I/O, it implements protocol conversion, telemetry formatting, and bus arbitration functions. Many obsolescence-driven redesigns use the same-footprint A54SX32A-1PQG208M to add margin without board respin, preserving qualification test documentation for the unchanged PCB and interconnect.
Recommended
Embedded Glue Logic Consolidation
The A54SX16A-1PQG208 excels at replacing clusters of 74xx logic, SPLDs, and PALs in embedded processor systems. Its 1452 CLBs absorb address decoding, bus transceiving, wait-state generation, interrupt aggregation, and reset supervision that would otherwise occupy a dozen packages. Microchip positions the SX-A family precisely for this 'system-wide savings by integrating multiple functions into a low cost, single-chip solution'. The wide 2.25V to 5.25V supply range lets one device bridge 5V processor buses and 3.3V peripherals without translators, and 175 I/O is ample for full-width parallel buses. Deterministic antifuse timing means decoded chip-select edges meet processor timing without the variation of reprogrammable fabrics.
Recommended
Test and Measurement Instrumentation
Bench and automated test instruments use the A54SX16A-1PQG208 for timing sequencers, trigger logic, and counter/timer front ends. The 263 MHz toggle capability supports 100 MHz-class event counting, while deterministic antifuse routing delivers channel-to-channel skew low enough for coherent multi-channel sampling logic. The 1.2 ns input setup time enables direct capture of fast status signals without external latches, and 5V-tolerant I/O connects to instrumentation-standard 5V signaling. Because the configuration is OTP, instrument firmware cannot be corrupted by customer tampering or power anomalies, improving field reliability - an important consideration for instruments with 10-year service expectations in calibration-sensitive environments.
Recommended
Medical Device Legacy Sustainment
Certified medical equipment such as imaging controllers and patient-monitoring backplanes frequently embed SX-A FPGAs in their approved designs. The A54SX16A-1PQG208 supports these platforms with instant-on, permanently configured logic whose behavior cannot drift between power cycles - a property regulators value when revalidating software-controlled devices. Its 24K gates and 175 I/O implement sensor front-end sequencing, alarm prioritization, and host interface logic, while 2.25V to 5.25V operation tolerates the mixed 5V/3.3V rails common in legacy medical boards. For service organizations sustaining approved designs, the same-footprint A54SX16A-1PQG208A and -M suffix variants provide authorized substitution paths that avoid hardware change-notification paperwork.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16A-1PQG208 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16A-1PQG208M | A54SX16A-2PQG208 | A54SX32A-1PQG208M | A54SX32A-2PQG208I |
|---|---|---|---|---|---|
| Package | 208-BFQFP (PQFP-208) | 208-BFQFP - same | 208-BFQFP - same | 208-BFQFP - same | 208-BFQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 24000 | 24000 | 24000 | 36000 | 36000 |
| Logic Cells (CLBs) | 1452 | 1452 | 1452 | [DATA_NEEDED] | [DATA_NEEDED] |
| User I/O | 175 | 175 | 175 | [DATA_NEEDED] | [DATA_NEEDED] |
| Max Toggle Frequency | 263 MHz | 263 MHz | Higher than -1 (faster speed grade) | [DATA_NEEDED] | Higher than -1 (faster speed grade) |
| Temperature Grade | Standard (per suffix -PQG) | Standard (M flow grade) | Commercial | Standard (M flow grade) | Industrial (-I) |
| Supply Voltage | 2.25 V to 5.25 V | 2.25 V to 5.25 V | 2.25 V to 5.25 V | 2.25 V to 5.25 V | 2.25 V to 5.25 V |
| Recompile Required | N/A (target part) | No (same die) | No (same die) | Yes (SX32A die) | Yes (SX32A die) |
Key Differentiators
- Deterministic antifuse routing with instant power-up (vs A54SX32A-1PQG208M)
- Timing margin for free via faster speed grade (vs A54SX16A-2PQG208)
- Industrial temperature option in same footprint (vs A54SX32A-2PQG208I)
- 5V-tolerant wide supply I/O (vs SRAM FPGAs (e.g., Xilinx XC4000-class))
Design Notes
The A54SX16A-1PQG208 accepts 2.25V to 5.25V, but timing specifications are only guaranteed across the datasheet's characterized supply window for the -1 speed grade. Decouple all VCC pins with 0.1uF ceramics placed within a few millimeters of each supply pin, plus one bulk 10uF per rail. Because antifuse static current is negligible, total power is dominated by dynamic switching: minimize high-fanout nets and register the highest-speed clocks onto dedicated clock resources to keep dynamic current predictable across the 175 I/O.
The device is one-time programmable: once antifuses are blown, the design is permanent and any logic change requires a new physical part. Complete RTL simulation, static timing analysis at the -1 speed grade corner, and a board-level prototype before committing to programming. Reserve a test socket or programming header footprint on the PCB so Silicon Sculptor or in-system programming can be performed reliably, and verify the programmer's algorithm revision matches the current Microchip device revision (note the -PQG208A suffix denotes a later die revision).
The 208-pin BFQFP with 0.5 mm pitch requires careful land-pattern design per IPC-SM-782-style PQFP footprints. Fan out the 175 user I/O with via-in-pad avoided; use dog-bone escapes on the two outer rows. Keep unterminated 5V-tolerant outputs away from reset and test pins to prevent crosstalk-induced false triggering during power sequencing. A solid ground plane under the die center reduces ground bounce on simultaneously switching outputs; limit SSO groups per the datasheet guidance for the PQFP package.
At the 263 MHz toggle ceiling, treat any output driving more than roughly 100 mm of trace as a transmission line: add 22-33 ohm series termination at the driver and keep stubs short. Group simultaneously switching outputs (buses) together on adjacent I/O rings with adjacent ground pins to bound ground bounce. For clocks entering the FPGA, route on an inner layer referenced to ground and add a series resistor near the source to slow edges to the minimum slew the design needs - faster edges buy nothing and only add EMI.
Compliance Information
FindIC specification summary explicitly states ROHS COMPLIANT for the plastic PQFP-208 package. REACH, halogen-free, and conflict-minerals status not stated in provided data.
