A54SX16P-1TQG176I - 16K Gate SX FPGA, 280MHz, TQFP-176 | Microchip
MPN: A54SX16P-1TQG176I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $42.5 | $42.50 |
| 10 | $39.8 | $398.00 |
| 100 | $36.2 | $3,620.00 |
| 500 | $33.1 | $16,550.00 |
| 1,000 | $30.4 | $30,400.00 |
Drop-in alternatives for A54SX16P-1TQG176I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX16P-2TQG176
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View Datasheet →A54SX16-1TQG176
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View Datasheet →A54SX16P-1TQG176I Maximum Ratings & Electrical Characteristics
| Programmable Type | In System Programmable (antifuse FPGA) |
| Logic Cells | 924 |
| Configurable Logic Blocks (CLBs) | 1452 |
| Equivalent System Gates | 16000 |
| Number of I/O | 147 |
| Maximum Clock Frequency | 280 MHz |
| Supply Voltage - Nominal | 3.3 V |
| Supply Voltage - Range | 3.0 V to 3.6 V |
| I/O Operating Voltage | 3.3 V / 5 V |
| Process Technology | 0.35 um CMOS |
| Speed Grade | -1 |
| Package | 176-TQFP (24x24 mm) |
| Mounting Type | Surface Mount |
| Operating Temperature | Industrial (-40C to +85C) |
| Product Family | SX (Microsemi/Microchip) FPGA |
| Lead Free Status | Lead Free (per distributor listings) |
A54SX16P-1TQG176I 176-tqfp (24x24 mm) Pin Configuration Guide
Complete pinout information for A54SX16P-1TQG176I (176-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 A54SX16P-1TQG176I.
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
A54SX16P-1TQG176I is suitable for 6 applications: Industrial Control and Automation, Telecommunications Line Cards, Aerospace and Defense Subsystems, Test and Measurement Equipment, Bus Bridging and Protocol Conversion, Embedded Sensing and IoT Gateways.
Industrial Control and Automation
The A54SX16P-1TQG176I fits industrial control cards that need deterministic, glitch-free logic and 5V-tolerant I/O to bridge legacy sensors, PLC backplanes, and modern 3.3V controllers. Its 147 user I/O and 280 MHz registered performance handle encoder decoding, PWM generation, and parallel bus interfacing within a single 16K-gate fabric. Because the antifuse configuration is non-volatile, the card powers up functional immediately without a configuration device, improving fault recovery in factory environments. Place the FPGA between a 3.3V main rail and field-side buffers, with series termination on long field lines; the industrial -40C to +85C rating of the I suffix supports unconditioned cabinet deployments.
Recommended
Telecommunications Line Cards
Telecom and datacom line cards historically used SX family FPGAs for framing, TDM switching, and backplane glue logic, and the A54SX16P-1TQG176I sustains those designs at up to 280 MHz internal clock rates. The 0.35 um CMOS process provides static, low-switching-current operation suited to high-card-count shelves, while 147 I/O covers E1/T1/J1 serial streams and parallel management buses simultaneously. Deterministic antifuse routing delays simplify timing closure for fixed-rate synchronous designs, an advantage over SRAM fabrics whose timing varies with each compile. Decouple the 3.3V rail with 0.1uF ceramics at each supply pin and verify output enable sequencing against line-card hot-swap controllers to prevent bus contention at insertion.
Recommended
Aerospace and Defense Subsystems
The antifuse SX fabric is widely used in defense electronics because it contains no configuration memory that can be read out or upset by single-event effects at the configuration layer. The A54SX16P-1TQG176I provides 16,000 gates of trusted glue logic for radar interface cards, secure communications adapters, and test-set controllers, with the industrial temperature grade covering -40C to +85C environments. Designers should add conformal-coating-compatible pull resistors on unused I/O and follow Microchip ACT/SX family application notes for power-up current profiling. For programs needing higher assurance, Microchip RTAX radiation-hardened relatives (e.g., RTAX1000SL family) share architectural concepts, easing logical migration while remaining board-distinct.
Recommended
Test and Measurement Equipment
Bench instruments and automatic test equipment (ATE) fixture boards benefit from the A54SX16P-1TQG176I as a reusable pattern generator and comparison logic block. With 147 bidirectional I/O and 280 MHz flip-flop rates, a single device drives address/data sequences to devices under test while capturing responses, replacing racks of discrete logic. The 5V-tolerant I/O mode directly interfaces to legacy TTL-level instrument buses without level shifters, reducing BOM cost. Design the fixture with series resistors on all DUT-facing lines to limit edge rates into sensitive loads, and recompile timing-constrained patterns in Microchip Libero/Designer software after any speed-grade substitution to confirm setup and hold margins.
Recommended
Bus Bridging and Protocol Conversion
The A54SX16P-1TQG176I excels as a bridge between incompatible bus standards - for example, mapping a 5V-tolerant VME or ISA-style parallel bus onto a 3.3V local processor bus. The 16K-gate fabric accommodates FIFO buffers, byte-swapping logic, interrupt controllers, and wait-state generators concurrently. Because antifuse routing delays are fixed after programming, bridge latency is stable and repeatable, which simplifies host driver timing assumptions compared to SRAM FPGA recompiles that can shift critical paths. Host the bridge at the voltage boundary with the FPGA I/O banks configured per standard, and verify the 3.0V to 3.6V supply tolerance against the host backplane specification before tape-out.
Recommended
Embedded Sensing and IoT Gateways
Legacy industrial IoT gateways use the A54SX16P-1TQG176I as a sensor-aggregation coprocessor, demultiplexing parallel sensor streams, generating timestamps, and offloading the host MCU. The 280 MHz fabric processes pulse-capture and frequency-counting tasks deterministically, while the non-volatile antifuse configuration removes boot-time programming risk in remote, battery-backed installations. Its 0.35 um process draws low static current compared with modern high-density FPGAs, suiting always-on monitoring nodes. Keep unused I/O tri-stated with weak pull-ups per Microchip SX family guidelines, and monitor board temperature with a digital sensor polled over the FPGA's I2C master to guarantee operation within the -40C to +85C industrial envelope.
Recommended
Recommended Products Summary
Engineering reference data for A54SX16P-1TQG176I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX16P-2TQG176 | A54SX16P-1TQG176 | A54SX16-1TQG176I | A54SX16P-TQG176 |
|---|---|---|---|---|---|
| Package | 176-TQFP (24x24 mm) | 176-TQFP (24x24 mm) - same | 176-TQFP (24x24 mm) - same | 176-TQFP (24x24 mm) - same | 176-TQFP (24x24 mm) - same |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 16000 | 16000 | 16000 | 16000 | 16000 |
| Logic Cells | 924 | 924 | 924 | 924 | 924 |
| User I/O | 147 | 147 | 147 | 147 | 147 |
| Max Clock Frequency | 280 MHz | ~320 MHz (-2 speed grade) | 280 MHz | 280 MHz | [DATA_NEEDED] |
| Temperature Grade | Industrial (-40C to +85C) | [DATA_NEEDED] | Commercial | Industrial (-40C to +85C) | [DATA_NEEDED] |
| Supply Voltage | 3.3 V (3.0-3.6 V), 5 V tolerant I/O | 3.3 V (3.0-3.6 V) | 3.3 V (3.0-3.6 V) | 5 V family (SX16) | 3.3 V (3.0-3.6 V) |
| Lead Finish | Lead free (G suffix) | Lead free (G suffix) | Lead free (G suffix) | Lead free (G suffix) | Lead free (G suffix) |
Key Differentiators
- Deterministic antifuse timing (vs A54SX16P-2TQG176)
- Industrial temperature grade with lead-free finish (vs A54SX16P-1TQG176)
- P-variant enhanced electricals (vs A54SX16-1TQG176I)
Design Notes
Supply the A54SX16P-1TQG176I core from a clean 3.3V rail within the 3.0V to 3.6V tolerance. Place a 0.1uF ceramic capacitor at each VCC/ground pin pair plus at least 10uF bulk per device. Because antifuse FPGAs draw a transient programming current surge at power-up (see Microchip SX family power-up application notes), verify the regulator can source the inrush without drooping below 3.0V, or sequence the rail with a supervisor. If interfacing 5V logic, confirm the I/O bank configuration supports 5V-tolerant operation for the specific pins used.
Create the 176-TQFP footprint directly from the SX family datasheet mechanical drawing (24x24 mm body, 0.5 mm pitch). Keep the dedicated configuration and JTAG pins routed short with 10k pull resistors as shown in the manufacturer programming specification, and reserve test-point access to the JTAG chain for production programming and boundary-scan verification. Avoid routing fast I/O under the package center; use the four-layer stack (signal/GND/power/signal) to provide a low-inductance return path for the 280 MHz internal clocks.
The antifuse fabric is one-time programmable - a design change requires a new physical device, so complete full simulation, static timing analysis in Microchip Designer/Libero, and hardware validation before committing production parts. Do not confuse speed grades: a design meeting timing on the -2 grade may fail on the -1 (280 MHz class) part. Finally, when substituting the non-P A54SX16 variants, re-review I/O electrical characteristics since the P and non-P devices differ in certain electrical parameters despite identical footprints.
Compliance Information
Distributor listings (PCB Electronics, Mouser) explicitly mark A54SX16P-1TQG176I as LEAD FREE; the G suffix in TQG176 denotes the RoHS/lead-free package finish. REACH, halogen-free, and conflict-minerals statuses were not enumerated in the retrieved data.
