A54SX32-PQ208 - SX FPGA, 48K Gates, 174 I/O | Microchip
MPN: A54SX32-PQ208 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $68.5 | $68.50 |
| 10 | $62.3 | $623.00 |
| 100 | $55.9 | $5,590.00 |
| 500 | $50.2 | $25,100.00 |
| 1,000 | $44.75 | $44,750.00 |
Drop-in alternatives for A54SX32-PQ208 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX32-PQG208
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View Datasheet →A54SX32-PQ208I
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$272.19 / Unit
View Datasheet →A54SX32-PQG208I
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$362.79 / Unit
View Datasheet →A54SX32-1PQG208
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$37.7 / Unit
View Datasheet →A54SX32-1PQG208I
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$44.9 / Unit
View Datasheet →A54SX32-2PQG208I
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View Datasheet →A54SX32-PQ208 Maximum Ratings & Electrical Characteristics
| Family | SX (Actel/Microsemi antifuse FPGA) |
| Gate Count | 48,000 gates (32K system gates) |
| Logic Modules (CLBs) | 2880 |
| User I/O | 174 configurable I/O pins |
| Max Clock Frequency (Internal) | 280 MHz to 320 MHz (speed-grade dependent) |
| Clock-to-Out (Pin-to-Pin) | 3.7 ns |
| Input Set-Up Time | 0.1 ns |
| Clock Skew | 0.25 ns |
| Supply Voltage (Core) | 3.0 V to 3.6 V (nominal 3.3 V) |
| Dual Rail Support | 4.75 V to 5.25 V (5.0 V operation option) |
| PCI Compliance | 66 MHz PCI single-chip solution |
| Programming Technology | Antifuse (one-time programmable, non-volatile) |
| Package | 208-pin Plastic Quad Flat Package (PQFP/BFQFP), 28 mm x 28 mm |
| Mounting Type | Surface Mount |
| Pin Locking | 100% resource utilization with 100% pin locking |
A54SX32-PQ208 208-pin plastic quad flat package (pqfp/bfqfp), 28 mm x 28 mm Pin Configuration Guide
Complete pinout information for A54SX32-PQ208 (208-pin plastic quad flat package (pqfp/bfqfp), 28 mm 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 A54SX32-PQ208.
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
A54SX32-PQ208 is suitable for 6 applications: 66 MHz PCI Interface and Bus Bridging, Industrial Control and Automation, Aerospace and Defense Subsystems, Communications Line Cards and Backplanes, Legacy System Maintenance and Obsolescence Repair, Test and Measurement Instrumentation.
66 MHz PCI Interface and Bus Bridging
The A54SX32-PQ208 is explicitly targeted at 66 MHz PCI as a single-chip CPLD/FPGA integration solution. Its 320 MHz internal performance, 3.7 ns pin-to-pin clock-to-out, 0.1 ns input set-up, and 0.25 ns clock skew provide the deterministic timing headroom needed to meet the strict PCI setup and hold budgets at 66 MHz. The antifuse fabric gives fixed routing delays, so timing sign-off does not shift between place-and-route runs - a significant advantage over SRAM FPGAs in bus-qualified designs. Place the device close to the PCI connector with controlled-length traces, and reference the I/O banks to the 3.3V rail with optional 5V-tolerant dual-rail support (4.75-5.25V) for legacy backplanes.
Recommended
Industrial Control and Automation
In industrial controllers, the A54SX32-PQ208 combines 48,000 gates and 174 I/O to replace multiple glue-logic, counter, and bus-interface devices in one package, cutting board area and BOM count. The 3.0-3.6V core with 5.0V dual-rail tolerance interfaces directly with legacy 5V PLC I/O subsystems, while the instant-on antifuse configuration means the FPGA is functional the moment power is applied - critical for safety interlocks and machine-state monitoring that cannot tolerate configuration boot delay. For harsh factory-floor temperature environments, specify the industrial-temperature A54SX32-PQ208I or A54SX32-PQG208I drop-in variant. Decouple both supply rails with 0.1 uF ceramics per I/O bank plus bulk 10 uF capacitance at the entry point.
Recommended
Aerospace and Defense Subsystems
Actel/Microsemi SX antifuse FPGAs have a long heritage in aerospace and defense because the one-time-programmable fabric contains no configuration memory to upset, no bitstream to intercept, and powers up active immediately - desirable in satellite payload interfaces, avionics data buses, and telemetry frames. The A54SX32-PQ208 supplies 48,000 gates and 174 I/O in a proven 28x28 mm PQFP with 100% pin locking across design iterations. Designers should recompile the netlist for the exact ordered speed grade and simulate against the datasheet AC tables before programming, since antifuse programming is irreversible. Related Microsemi RTAX radiation-tolerant families exist in the XAIPART catalog for higher-reliability orbits.
Recommended
Communications Line Cards and Backplanes
Telecom and datacom line cards use the A54SX32-PQ208 for framing, multiplexing, and backplane glue logic where 174 I/O in one 208-pin PQFP eliminates several PLD devices. The 0.25 ns clock skew supports board-level synchronous timing distribution, and 3.3V operation with 5V-tolerant inputs bridges legacy 5V backplane signaling with modern 3.3V PHYs. Because the antifuse configuration is non-volatile and load-free, hot-swap and redundant-card switchover sequences see no FPGA boot latency. Use the -1 or -2 speed grades (A54SX32-1PQG208I, A54SX32-2PQG208I, drop-in on the same footprint) when the timing budget is tight at higher line rates.
Recommended
Legacy System Maintenance and Obsolescence Repair
Mature industrial, medical, and test platforms originally designed around Actel SX FPGAs continue in service for decades. The A54SX32-PQ208 and its drop-in variants (A54SX32-PQG208, A54SX32-PQ208I) remain procurable through Octopart-listed brokers and XAIPART, making them the natural repair/continuation device: FindIC confirms the PQG208 fully replaces the PQ208 with no circuit modification. Because the antifuse bitstream was permanently programmed at original manufacture, a replacement device requires the archived design source and programming file; verify speed-grade marking before soldering to avoid timing mismatches with the original qualification.
Recommended
Test and Measurement Instrumentation
Bench and ATE instruments benefit from the A54SX32-PQ208 as a timing sequencer, trigger matrix, and bus-interface FPGA. Deterministic antifuse routing delays mean trigger-path latency is fixed and repeatable - essential for measurement repeatability and calibration - while the 280-320 MHz internal fabric handles high-rate counters and state machines. The 174 I/O accommodate multi-channel digital acquisition front ends, and 5V-tolerant dual-rail I/O connects directly to legacy instrument buses. For instruments shipping into RoHS-regulated markets, select the Green-finish A54SX32-PQG208/I variants on the identical footprint to avoid PCB rework.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-PQ208 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-PQG208 | A54SX32-PQ208I | A54SX32-PQG208I | A54SX32-2PQG208I |
|---|---|---|---|---|---|
| Package | 208-PQFP (28x28 mm) | 208-PQFP - same footprint | 208-PQFP - same footprint | 208-PQFP - same footprint | 208-PQFP - same footprint |
| Brand | Microchip Technology (Actel/Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Gate Count | 48,000 gates | 48,000 gates | 48,000 gates | 48,000 gates | 48,000 gates |
| User I/O | 174 | 174 | 174 | 174 | 174 |
| Speed Grade | Standard | Standard | Standard | Standard | -2 (fastest) |
| Temperature Range | [DATA_NEEDED] | [DATA_NEEDED] | Industrial (I suffix) | Industrial (I suffix) | Industrial (I suffix) |
| Supply Voltage | 3.0-3.6 V (dual rail 4.75-5.25 V) | 3.0-3.6 V (dual rail) | 3.0-3.6 V (dual rail) | 3.0-3.6 V (dual rail) | 3.0-3.6 V (dual rail) |
| Package Finish | [DATA_NEEDED: lead finish] | Green / lead-free | [DATA_NEEDED] | Green / lead-free | Green / lead-free |
| Programming Technology | Antifuse (OTP, non-volatile) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
Key Differentiators
- Green lead-free finish availability (vs A54SX32-PQ208 (this part, standard finish))
- Industrial temperature rating (vs A54SX32-PQ208I / A54SX32-PQG208I)
- Faster timing headroom without PCB change (vs A54SX32-2PQG208I)
Design Notes
The A54SX32-PQ208 requires a 3.0-3.6V core supply (3.3V nominal) and optionally a second 4.75-5.25V rail for 5.0V dual-rail operation. Decouple with at least 0.1 uF ceramic capacitors at each supply pin pair plus 10 uF bulk per rail. Antifuse FPGAs draw essentially zero configuration current at power-up, so inrush is dominated by ordinary decoupling capacitor charging - but verify I/O bank loading since 174 outputs switching simultaneously can create ground bounce on a shared return.
The SX family is one-time programmable: once antifuses are programmed there is no rework path, so complete full functional simulation and static timing analysis at the ordered speed grade before submitting to programming. Do not substitute a slower speed grade to save cost without re-running STA - the base PQ208 grade has different AC timing than -1/-2 grades. Also confirm the suffix (PQ208 vs PQG208 vs PQ208I) matches your temperature and lead-finish requirements at order entry, as markings look similar on receiving inspection.
The 208-pin PQFP has a 0.5 mm pin pitch with leads on all four sides of a 28x28 mm body. Inspect lead coplanarity before reflow, since PQFP leads are prone to shipping damage; use a footprint matching the Microchip mechanical drawing and include fiducials on two diagonal corners for optical alignment. Route the 66 MHz PCI traces with controlled impedance and matched lengths, keeping stubs under 5 mm. Provide thermal relief via standard signal-layer copper - no exposed pad exists on this package.
Compliance Information
The base A54SX32-PQ208 lead-finish and compliance status was not stated in the provided web data. Green (PQG) suffix variants indicate Microchip Green/lead-free packaging; verify current compliance certificates on the Microchip product page before export.
