A54SX16-2PQG208 - 24K Gate SX FPGA 175 I/O | Microsemi
MPN: A54SX16-2PQG208 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $68 | $68.00 |
| 10 | $61.2 | $612.00 |
| 100 | $54.4 | $5,440.00 |
| 500 | $47.6 | $23,800.00 |
| 1,000 | $40.8 | $40,800.00 |
Drop-in alternatives for A54SX16-2PQG208 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX16P-2PQG208
✅ Drop-In✓ In Stock
$49.2 / Unit
View Datasheet →A54SX16-2PQG208I
✅ Drop-In✓ In Stock
$47.95 / Unit
View Datasheet →A54SX16P-PQG208
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$47.95 / Unit
View Datasheet →A54SX16-1PQG208
✅ Drop-In✓ In Stock
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View Datasheet →A54SX16P-1PQG208
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View Datasheet →A54SX16-1PQG208I
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$39.9 / Unit
View Datasheet →A54SX16P-PQG208M
✅ Drop-In✓ In Stock
$66.4 / Unit
View Datasheet →A54SX16-2PQG208 Maximum Ratings & Electrical Characteristics
| Manufacturer | Microsemi (Actel) |
| Family | SX (54SX) FPGA |
| System Gates | 24000 gates |
| Logic Cells | 1452 cells |
| Speed Grade | -2 |
| Programmable I/O | 175 I/O |
| Supply Voltage (Core) | 3 V to 3.6 V (3.3 V nominal) |
| Supply Voltage (I/O) | 4.75 V to 5.25 V |
| Process Technology | 0.35 um CMOS antifuse |
| Programming Type | One-time programmable (antifuse) |
| Package | 208-BFQFP (PQFP 28x28 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | 0 C to 70 C |
| Configuration | Non-volatile, instant-on (no boot PROM) |
A54SX16-2PQG208 208-bfqfp (pqfp 28x28 mm) Pin Configuration Guide
Complete pinout information for A54SX16-2PQG208 (208-bfqfp (pqfp 28x28 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 A54SX16-2PQG208.
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
A54SX16-2PQG208 is suitable for 6 applications: Industrial Control and Automation, 5V-Legacy System Bridging and Redesign, Telecommunications Line Cards, Avionics and Defense Subsystems, Test and Measurement Equipment, Medical Device Control Logic.
Industrial Control and Automation
The A54SX16-2PQG208 fits industrial control and factory automation because its 4.75V-5.25V I/O ring interfaces directly with legacy 5V TTL PLC I/O, sensors, and backplane signals without level shifters, while the 3.0V-3.6V core rail keeps internal power low. With 24,000 gates and 1452 logic cells, it implements glue logic, state machines, counters, and address decoding that previously consumed dozens of TTL devices. Its antifuse, one-time-programmable fabric is non-volatile and instant-on, so machinery resets to a known functional state immediately after power interruption - a meaningful advantage over SRAM FPGAs that need configuration time and a boot PROM in noisy industrial power environments.
Recommended
5V-Legacy System Bridging and Redesign
The A54SX16-2PQG208 is a natural fit for sustaining 5V-legacy equipment: many mid-1990s and 2000s systems expose 5V TTL signaling that modern single-rail FPGAs cannot tolerate directly. The SX16's dedicated 4.75V-5.25V I/O supply absorbs 5V drive levels natively, and the 208-BFQFP 28x28 mm package offers large 0.635 mm lead pitch for inspection and rework. In obsolescence redesigns, the instant-on antifuse fabric replaces multi-chip TTL glue logic one-for-one, and with 175 I/O there is ample pin capacity for bus interfaces. The RoHS A54SX16P-2PQG208 variant enables compliant new builds on the same proven footprint.
Recommended
Telecommunications Line Cards
Telecom line cards built around 5V backplanes benefit directly from the A54SX16-2PQG208's dual-rail architecture: 5V I/O on the card edge and backplane interface, 3.3V core for the logic fabric. The -2 speed grade supports the timing-critical framing, TDM switching, and protocol handshaking functions historically implemented on SX devices, with distributor listings citing ~320 MHz-class family performance. The 175 programmable I/O cover E1/T1 framer, HDLC controller, and backplane bus connections simultaneously. Because the device is one-time programmable and non-volatile, line cards come up immediately after a shelf power cycle, meeting carrier availability expectations without configuration PROMs on the card.
Recommended
Avionics and Defense Subsystems
Antifuse FPGAs have long been preferred in avionics and defense electronics because the programmed interconnect is physically permanent, giving inherent immunity to configuration upset and no need for radiation-considered configuration storage. The A54SX16-2PQG208 provides 24,000 gates of instant-on logic for sensor preprocessing, bus interfacing, and discrete I/O consolidation in these subsystems. For programs operating across extended temperatures, the A54SX16-2PQG208I industrial variant is pin-identical, allowing one PCB design across commercial and rugged builds. Note the base part is rated 0C to +70C; always select the I-suffix or higher-screened M-grade variants for environments outside commercial limits.
Recommended
Test and Measurement Equipment
Bench and rack instrumentation uses the A54SX16-2PQG208 for trigger logic, timing generation, counter/timer functions, and bus interfacing (GPIB-style and custom parallel buses). The -2 speed grade provides the sub-nanosecond-class deterministic delays of the SX family's sea-of-modules routing, valuable in trigger path timing that general-purpose fabric handles poorly. Its 175 I/O support high-channel-count pattern generators and logic analyzers, and the 5V I/O ring matches the TTL probe and Pod hardware common in legacy test systems. The instant-on antifuse configuration means the instrument is measurement-ready the moment power stabilizes - no 100-500 ms FPGA load delay.
Recommended
Medical Device Control Logic
Non-life-critical medical device control and interface logic - patient data acquisition gating, front-panel control, communication interfacing - is a good match for the A54SX16-2PQG208 where designs already standardize on 5V subsystem peripherals. The antifuse fabric's deterministic, fixed routing simplifies verification documentation because post-program timing never drifts with configuration reloads, an audit-friendly property. With 24,000 gates it consolidates former TTL and PLD logic, reducing BOM count and failure points. For medical builds, prefer the Pb-free A54SX16P-2PQG208 to satisfy RoHS directive 2011/65/EU expectations, and use the industrial-temperature I variant for equipment subject to cold-chain or sterilization-adjacent temperature excursions.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16-2PQG208 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16P-2PQG208 | A54SX16-2PQG208I | A54SX16-1PQG208 | A54SX16P-PQG208 |
|---|---|---|---|---|---|
| Package | 208-BFQFP (PQFP 28x28 mm) | 208-BFQFP (PQFP 28x28 mm) - same | 208-BFQFP (PQFP 28x28 mm) - same | 208-BFQFP (PQFP 28x28 mm) - same | 208-BFQFP (PQFP 28x28 mm) - same |
| Brand | Microsemi (Actel) | Microchip Technology | Microsemi | Microsemi | Microchip Technology |
| System Gates | 24,000 | 24,000 | 24,000 | 24,000 | 24,000 |
| Logic Cells | 1452 | 1452 | 1452 | 1452 | 1452 |
| Speed Grade | -2 (fastest standard grade) | -2 | -2 | -1 (slower) | -1 (slower) |
| Programmable I/O | 175 | 175 | 175 | 175 | 175 |
| Supply Voltage | 3.0-3.6 V core, 4.75-5.25 V I/O | 3.0-3.6 V core, 4.75-5.25 V I/O | 3.0-3.6 V core, 4.75-5.25 V I/O | 3.0-3.6 V core, 4.75-5.25 V I/O | 3.0-3.6 V core, 4.75-5.25 V I/O |
| Operating Temperature | 0 C to +70 C | 0 C to +70 C | Industrial (I suffix) | 0 C to +70 C | 0 C to +70 C |
| RoHS / Pb-Free | [DATA_NEEDED] | Yes (P suffix = Pb-free) | [DATA_NEEDED] | [DATA_NEEDED] | Yes (P suffix = Pb-free) |
| Lifecycle Status | EOL (residual distributor stock) | Active - ships today (DigiKey) | EOL / legacy stock | EOL / legacy stock | Legacy listing |
Key Differentiators
- Dual 3.3V/5V supply architecture (vs A54SX16P-2PQG208)
- Fastest standard speed grade in the SX16 208-pin family (vs A54SX16-1PQG208)
- Instant-on non-volatile antifuse configuration (vs SRAM FPGAs (no drop-in equivalent))
- Honest trade-off: no RoHS plating (vs A54SX16P-2PQG208)
Design Notes
The A54SX16-2PQG208 requires two independent rails: 3.0-3.6V for the core and 4.75-5.25V for the I/O ring. Do not share a single regulator output between core and I/O domains without confirming sequencing per the 54SX family datasheet, because I/O structure integrity depends on the I/O rail. Provide 0.1 uF ceramic decoupling at multiple I/O corner pins plus at least 10 uF bulk per rail. Estimated: SX16 quiescent antifuse current is very low, but 5V I/O switching dominates dynamic power - budget P = C*V^2*f per output bank for the 5V rail sizing.
This is a one-time-programmable antifuse device: there is no rework path after programming. Freeze the pin assignment and design before committing devices, and always buy extra programmed spares (5-10% of lot size). Never substitute the A54SX16A (SX-A family, 0.25 um) for the A54SX16 (SX family, 0.35 um) - despite similar names and 208-pin PQFP packaging they are different families with different timing, pinout verification, and toolchain constraints, as Jotrin's parallel listings make clear.
The 208-pin PQFP (28x28 mm, 0.5 mm lead pitch for BFQFP class) needs careful solder-paste stencil design: use a 1:1 aperture with tensioned stencil and inspect for solder bridging between fine-pitch leads under magnification. Provide at least two thermal relief vias per ground plane connection under the die and route the 5V I/O return currents directly to the ground plane. Keep high-speed clock traces short and reference an unbroken ground plane; the QFP lead inductance limits edge rates, but stubs on clock nets still cause ringing.
Because this part is EOL, design the PCB footprint for the full SX16 208-PQG family (including the P Pb-free variants) so that A54SX16P-2PQG208 can be substituted without layout change. The QFP lead-tip footprint per the 54SX datasheet package drawing accommodates both package generations; verify the silkscreen polarity mark against pin 1 of the package drawing before release, and reserve a testpoint on each supply rail and the programming-related pins for incoming inspection.
Compliance Information
The base A54SX16-2PQG208 is a legacy Pb-era package; the P-suffix variant A54SX16P-2PQG208 is the Pb-free/RoHS-oriented version per Microchip listings. Commercial temperature grade only (0C to +70C); not automotive qualified.
