A54SX32-TQ144I - 48K Gate SX FPGA, 113 I/O | Microchip Technology
MPN: A54SX32-TQ144I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $312.63 | $312.63 |
| 10 | $297 | $2,970.00 |
| 100 | $281.36 | $28,136.00 |
| 500 | $265.73 | $132,865.00 |
| 1,000 | $250.11 | $250,110.00 |
Drop-in alternatives for A54SX32-TQ144I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX32-TQG144I
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View Datasheet →A54SX32-1TQG144
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View Datasheet →A54SX32-TQ144I Maximum Ratings & Electrical Characteristics
| Family | SX (Actel/Microsemi SX series) |
| System Gates | 48,000 |
| Logic Cells | 1800 |
| Logic Array Blocks (LABs) | 2880 |
| User I/O | 113 |
| Core Voltage | 2.5 V |
| Maximum System Performance | 238 MHz |
| Process Technology | 0.25 um |
| Programmability Type | One-Time Programmable (antifuse) |
| Package | 144-TQFP (LQFP), surface mount |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (industrial, I suffix) |
| Configuration Memory | Antifuse (no external boot device required) |
| Supplier Stock (Heisener) | 5,264 pieces as of 2026-09-03 |
| Unit Price (1 pc, Heisener) | 312.63 USD as of 2026-09-03 |
A54SX32-TQ144I 144-tqfp (lqfp), surface mount Pin Configuration Guide
Complete pinout information for A54SX32-TQ144I (144-tqfp (lqfp), surface mount 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-TQ144I.
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-TQ144I is suitable for 6 applications: Industrial Control and Automation, Secure Military and Aerospace Logic, Communications and Networking Glue Logic, Board-Level System Integration / ASSP Bridging, Test and Measurement Equipment, Battery-Powered and Low-Power Portable Systems.
Industrial Control and Automation
In factory automation, motor sequencing, and PLC I/O modules, the A54SX32-TQ144I consolidates dozens of discrete logic, decoding, and interlock functions into a single 48,000-gate antifuse fabric. Its -40C to +85C industrial temperature rating matches cabinet and floor-level equipment environments, while 113 user I/O provide dense parallel interfacing to sensors, encoders, and actuators at 2.5V/3.3V-compatible logic levels. Because configuration is programmed into antifuses, the controller logic is present the instant power is applied - no configuration loading time delays machine startup - and the design cannot be altered by firmware corruption or power glitches. Designers typically combine it with 3.3V transceivers and supervisors; a watchdog such as a reset supervisor protects against system-level faults.
Recommended
Secure Military and Aerospace Logic
Antifuse FPGAs like the A54SX32-TQ144I are a mainstay in defense electronics precisely because the configuration cannot be read back: once programmed, the fuse map exists only as physical connections in silicon. This makes the device suited to mission computers, radar timing generators, and telemetry encoders where design IP must be protected against reverse engineering. The 48,000-gate density handles protocol framing, bus arbitration, and timing-chain functions, while 238 MHz-class performance supports high-speed counter and datapath logic. The industrial-grade TQ144 package serves benign-flight environments; for full MIL-temperature programs, the screened -M variant in the same footprint enables commonality. Board designers pair it with rad-tolerant power supervision and isolated communication interfaces for system-level robustness.
Recommended
Communications and Networking Glue Logic
Line cards, backplane controllers, and telecom interface boards frequently need a mid-density FPGA to bridge processor buses, memory controllers, and physical-layer devices. The A54SX32-TQ144I fits this role with 113 flexible I/O that can implement address decoding, interrupt aggregation, and parallel-to-serial conversion at speeds up to the 238 MHz family ceiling. The antifuse fabric contributes no configuration-load latency, so links recover instantly after a hot swap or power event, a benefit for carrier-grade availability targets. Its 2.5V core keeps static power low in always-on telecom shelves. Typical companion devices include CAN or RS-485 transceivers for management planes and digital isolators to meet inter-domain isolation requirements in central-office equipment.
Recommended
Board-Level System Integration / ASSP Bridging
The SX family was explicitly positioned by Actel/Microchip for integrating multiple functions into a low-cost, single-chip solution, and the A54SX32-TQ144I delivers that promise in board-level integration projects: replacing PAL/GAL clusters, discrete decoders, and bus transceiver glue with one 48,000-gate device. This reduces BOM count, board area, and assembly cost while improving timing determinism because interconnect delays are fixed at antifuse programming rather than varying with configuration. Designers migrate legacy schematics into VHDL, verify in simulation, and program final hardware with confidence. The 144-TQFP footprint, with 0.5 mm-class lead pitch, hand-solderable for prototype rework, keeps integration accessible for industrial product lines without high-density BGA assembly capability.
Recommended
Test and Measurement Equipment
Bench instruments, fixture controllers, and automated-test backplanes use the A54SX32-TQ144I for trigger distribution, timing generation, and pattern-engine control logic. The deterministic antifuse timing benefits measurement repeatability: once routed, propagation delays do not shift between power cycles, so calibration profiles remain valid across reboots - an advantage over SRAM FPGAs whose timing is identical per-bitstream but which add configuration management complexity. With 238 MHz-class fabric speed, the device can generate fast strobe and gating signals, while 113 I/O accommodate dense fixture connector pin maps. Instrument makers combine it with precision data converters such as the ADS1220 and low-noise amplifiers, relying on the FPGA for sequencing, averaging control, and host interface handshake logic.
Recommended
Battery-Powered and Low-Power Portable Systems
Portable and battery-backed equipment benefits from the SX family's low static power profile on its 0.25 um, 2.5V core. Because the A54SX32-TQ144I requires no configuration PROM, the system avoids the repeated configuration current draws and boot delays of SRAM FPGAs, simplifying duty-cycled operation where the logic must respond instantly on wake-up. Applications include handheld test pods, data loggers, and portable communications terminals that need custom sequencing and interface glue but not modern FPGA densities. The 144-TQFP package is compatible with standard surface-mount assembly and supports compact two- and four-layer boards. Designers should implement I/O banking carefully and disable unused inputs to minimize leakage, and pair the device with precision supervisors for battery-management handshake logic.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-TQ144I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-TQG144I | A54SX32-TQ144 | A54SX32-1TQG144I | A54SX32-2TQG144I |
|---|---|---|---|---|---|
| Package | 144-TQFP | 144-TQFP - same | 144-TQFP - same | 144-TQFP - same | 144-TQFP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 48,000 | 48,000 | 48,000 | 48,000 | 48,000 |
| User I/O | 113 | 113 | 113 | 113 | 113 |
| Core Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Temperature Grade | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Speed Grade | Standard | Standard | Standard | -1 (standard timing) | -2 (faster timing) |
| Programmability | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP | Antifuse OTP |
| Unit Price (1 pc) | 312.63 USD (as of 2026-09-03) | [DATA_NEEDED] | 242.25 USD (Heisener, as of 2026-09-03) | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Configuration security via antifuse OTP (vs SRAM-based FPGAs (e.g., Lattice/Xilinx equivalents))
- Lowest-cost industrial-grade option in the 144-TQFP SX32 lineup (vs A54SX32-TQ144M)
- Faster timing available in same footprint (vs A54SX32-TQ144 (standard grade))
- Trade-off: no field reprogrammability (vs A54SX32-TQ144 / any SRAM FPGA)
Design Notes
The A54SX32 is one-time programmable: once antifuses are blown, the device cannot be reconfigured or returned. Always complete gate-level simulation and timing closure in Microchip Designer software before programming production devices, and budget at least 5-10% extra devices for development iterations. Verify the fuse file checksum after programming. Because there is no configuration memory to corrupt, field failures caused by bitstream loss do not occur - but design errors are equally permanent, so rigorous pre-program verification is the primary quality gate.
The A54SX32 core operates from a single 2.5V rail with I/O typically supplied at 3.3V-tolerant levels - confirm the exact I/O supply per the SX datasheet pin tables for your I/O standard selection. Estimated: at 48,000 gates of typical utilization with moderate toggle rates, core current remains in the tens-of-milliamps range on a 2.5V rail, but worst-case vector-correlated activity should be simulated using Designer's power estimator before sizing the regulator. Decouple each supply pin with 0.1 uF ceramic capacitors placed within 2 mm of the pin, plus bulk 10 uF per rail.
The 144-TQFP lead pitch (~0.5 mm) requires careful stencil design: use 1:1 or slightly reduced apertures with solder paste type 3 or finer, and prefer a 5x5 or 6x6 via-in-pad-free thermal pattern under the center keep-out area. Route the dedicated clock input with matched-length traces and keep it away from switching I/O banks to preserve the low-skew global routing advantage of the SX fabric. Assign unused I/O per the Designer software defaults and tie unused inputs to defined logic levels to prevent floating-node oscillation.
For long-term supply security, qualify the pin-identical A54SX32-TQG144I and A54SX32-1TQG144I/-2TQG144I orderable variants as alternate sources in your AVL - they share the same die and footprint, so qualification is a documentation exercise rather than a hardware retest. Also note the SX-A family (e.g., A54SX32A-TQ144I) offers a performance upgrade path in a compatible package class, but requires design recompile and re-verification, so plan a dual-source strategy before any obsolescence notice appears.
Compliance Information
Compliance status not stated in the provided verified web data; verify RoHS/REACH status on the official Microchip product page for the specific date/lot code before export-controlled procurement.
