A54SX32-TQG176 - 32K Gate FPGA, 147 I/O, TQFP-176 | Microsemi
MPN: A54SX32-TQG176 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $48.5 | $48.50 |
| 10 | $43.65 | $436.50 |
| 100 | $38.8 | $3,880.00 |
| 500 | $34.9 | $17,450.00 |
| 1,000 | $31.2 | $31,200.00 |
Drop-in alternatives for A54SX32-TQG176 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX32A-TQG176
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX16-TQG176
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$203.14 / Unit
View Datasheet →A54SX16-TQG176I
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Contact for price
View Datasheet →A54SX16P-TQG176
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$47.2 / Unit
View Datasheet →A54SX16-2TQG176
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$339.14 / Unit
View Datasheet →A54SX32-TQG176 Maximum Ratings & Electrical Characteristics
| Family | SX (Actel antifuse FPGA) |
| System Gates | 32000 gates |
| Logic Cells | 1800 cells |
| User I/O | 147 |
| Maximum System Frequency | 240 MHz |
| Process Technology | 0.35 um |
| Supply Voltage (Core) | 3 V to 3.6 V |
| Supply Voltage (I/O) | 4.75 V to 5.25 V |
| Package | 176-LQFP / TQFP (24x24 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | 0C to +70C |
| Programming Technology | Antifuse (one-time programmable, non-volatile) |
| Architecture | Sea-of-modules |
| Configuration | No external configuration device required (instant-on) |
A54SX32-TQG176 176-lqfp / tqfp (24x24 mm) Pin Configuration Guide
Complete pinout information for A54SX32-TQG176 (176-lqfp / tqfp (24x24 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-TQG176.
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-TQG176 is suitable for 6 applications: Industrial Control and Automation, Legacy 5V/3.3V Bus Bridging, Communications Line Cards, Military and Aerospace Legacy Sustainment, Test and Measurement Equipment, Secure Embedded Controllers.
Industrial Control and Automation
The A54SX32-TQG176 fits industrial control and factory automation systems that must interface legacy 5V PLC I/O with modern 3.3V digital circuitry, thanks to its dual supply architecture (3V-3.6V core, 4.75V-5.25V I/O). The 32K gates and 1,800 cells consolidate glue logic, counters, and state machines that would otherwise occupy several CPLDs or dozens of discrete devices. The antifuse fabric powers up instantly with the correct configuration, which matters for safety interlocks that cannot tolerate FPGA configuration latency. With 147 user I/Os in the 176-TQFP package, designers can implement parallel bus bridges, encoder interfaces, and relay-control sequencing in one solder-friendly, hand-inspectable package rated 0C to +70C for standard industrial enclosures.
Recommended
Legacy 5V/3.3V Bus Bridging
The A54SX32-TQG176 excels as a voltage-domain bridge: its 5V-tolerant I/O bank connects directly to TTL-level backplanes, VME-style buses, or 5V microprocessors, while the 3.3V core logic talks to modern peripherals. The 240 MHz system performance gives ample timing margin for bus arbitration, byte-swapping, wait-state generation, and address decoding. Because the antifuse configuration is non-volatile, the bridge logic is active within microseconds of power application - no configuration PROM boot sequence - which simplifies power-rail bring-up on mixed-voltage boards. The 32K gate capacity accommodates dual 16-bit bus interfaces plus control logic, and the 176-TQFP (24x24 mm) footprint allows rework and inspection on through-hole-heavy legacy boards.
Recommended
Communications Line Cards
Telecom and datacom line cards use the A54SX32-TQG176 for framing, clock-domain crossing, and backplane interface logic where deterministic, instant-on behavior is required. The SX family's sea-of-modules architecture delivers predictable timing across the 1,800-cell fabric, easing timing closure on synchronous interfaces at up to 240 MHz. The 147 programmable I/Os support multiple T1/E1 or serial backplane channels with level flexibility. Because antifuse FPGAs carry no configuration readback path, they suit equipment where design IP protection matters. The commercial 0C to +70C rating covers central-office environments, and the TQFP-176 package permits high-density line-card layouts without BGA assembly cost.
Recommended
Military and Aerospace Legacy Sustainment
Many defense and avionics programs were designed around Actel antifuse FPGAs for their radiation-tolerant configuration and design security, and the A54SX32-TQG176 serves commercial-grade segments and ground equipment of such programs. The one-time-programmable fabric cannot be reconfigured in flight or read back by adversaries, and there is no configuration memory to upset, supporting high-reliability sustainment. Obsolescence-risk management is easier because Microchip continues the SX family and pin-compatible SX-A derivatives (such as A54SX32A-TQG176) allow board-level continuity where electrical review permits. The 32K gate capacity covers interface controllers, telemetry formatters, and voter logic in ground-test and support equipment rated 0C to +70C.
Recommended
Test and Measurement Equipment
Bench instruments and automated test equipment (ATE) use the A54SX32-TQG176 for trigger logic, timing generators, and pattern capture. The 240 MHz fabric speed supports sub-10 ns event resolution in trigger chains, while 147 I/Os fan out to probe matrices and relay multiplexers directly at 5V or 3.3V levels. Instant-on antifuse configuration means the instrument's sequencing logic is live before the host CPU boots, enabling clean power-up state capture. The 32K gates comfortably hold counter/timer macros, UART/SPI bridges, and pattern RAM interfaces. The 176-TQFP package simplifies prototyping and rework - important when instruments are iterated in low volumes on mixed-technology PCBs.
Recommended
Secure Embedded Controllers
The A54SX32-TQG176 is well suited to embedded controller functions where bitstream confidentiality is a requirement. SRAM FPGAs expose their configuration in the bitstream file and over the configuration interface; the SX antifuse fabric is programmed once via the silicon-level antifuses and cannot be read back, so the design remains inside the package. Designers use the 32K gates for cryptographic-hardware wrappers around 5V legacy peripherals, secure key-handling state machines, and tamper-response sequencing with instant-on behavior. The dual 3.3V/5V supply supports direct interfacing with older secure-module hardware, and the commercial 0C to +70C range with TQFP-176 package fits standard embedded controller boards.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-TQG176 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32A-TQG176 | A54SX16-TQG176 | A54SX16-TQG176I | A54SX16P-TQG176 | A54SX16-2TQG176 |
|---|---|---|---|---|---|---|
| Package | 176-TQFP (24x24 mm) | 176-TQFP (24x24 mm) - same | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same | 176-TQFP - same |
| Brand | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) |
| System Gates | 32000 | 32000 | 16000 | 16000 | 16000 | 16000 |
| Logic Cells | 1800 | 1800 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Max System Frequency | 240 MHz | 238 MHz | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
| Supply Voltage | 3V-3.6V core, 4.75V-5.25V I/O | 2.5V (SX-A) | 3.3V/5V class | 3.3V/5V class | [DATA_NEEDED] | [DATA_NEEDED] |
| Operating Temperature | 0C to +70C | [DATA_NEEDED] | 0C to +70C (commercial) | -40C to +85C (industrial) | [DATA_NEEDED] | [DATA_NEEDED] |
| Process Technology | 0.35 um antifuse | 0.25 um antifuse | 0.35 um antifuse | 0.35 um antifuse | [DATA_NEEDED] | 0.35 um antifuse |
Key Differentiators
- Full 32K gate capacity in the 176-TQFP footprint (vs A54SX16-TQG176)
- 3.3V/5V dual-rail operation for legacy integration (vs A54SX32A-TQG176)
- Non-volatile, read-back-protected antifuse fabric (vs A54SX16P-TQG176)
Design Notes
The A54SX32-TQG176 requires two supply rails: 3V-3.6V for the core and 4.75V-5.25V for the I/O banks. Decouple each VDD pin with 0.1 uF ceramic capacitors placed within 5 mm of the pin, plus bulk 10 uF per rail. Sequence is not strictly mandated, but avoid powering the 5V I/O rail while the 3.3V core rail is absent for extended periods. Verify total current against the SX datasheet power estimator using your post-route netlist, since antifuse FPGA power depends on actual utilization and toggle rates.
The SX family is one-time programmable (antifuse). There is no in-system reconfiguration - a logic fix requires a new physical device. Budget for prototype devices, verify the design exhaustively in simulation and on programmer hardware, and freeze the design before ordering production quantities. Also note that once programmed, the device cannot be returned or re-marketed, so program only parts destined for the final build.
With 147 I/Os in a 24x24 mm TQFP, use short stub routing on 5V-legacy buses and series-terminate (22-33 ohm) fast edges to control ringing, since 0.35 um output drivers can drive legacy TTL loads with stiff edges. Provide a solid ground plane under the device and return each 5V I/O bank's current with nearby ground vias. Keep clock lines length-matched if multiple synchronous I/O banks share a strobe.
Compliance Information
Compliance data not stated in the retrieved web data. The 'G' suffix in the Microchip part numbering convention generally denotes lead-free/green packaging, but this must be confirmed against the official Microchip product page before procurement claims.
