A54SX32A-1TQG144I - 32K Gate FPGA 113 I/O TQFP-144 | Microchip
MPN: A54SX32A-1TQG144I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $42.5 | $42.50 |
| 10 | $38.75 | $387.50 |
| 100 | $34.9 | $3,490.00 |
| 500 | $31.6 | $15,800.00 |
| 1,000 | $28.8 | $28,800.00 |
Drop-in alternatives for A54SX32A-1TQG144I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
A54SX32A-2TQG144I
✅ Drop-In✓ In Stock
$281.98 / Unit
View Datasheet →A54SX32A-1TQG144
✅ Drop-In✓ In Stock
$45.2 / Unit
View Datasheet →A54SX32A-1TQG144M
✅ Drop-In✓ In Stock
$978 / Unit
View Datasheet →A54SX32A-TQG144IX53
✅ Drop-In✓ In Stock
$302 / Unit
View Datasheet →A54SX32A-TQG144IX53
✅ Drop-In✓ In Stock
$302 / Unit
View Datasheet →A54SX32A-1TQG144I Maximum Ratings & Electrical Characteristics
| Family | SX-A (Antifuse FPGA) |
| System Gates | 48000 gates |
| Logic Gates | 32000 gates |
| Logic Cells | 1800 cells |
| CLBs | 2880 |
| Number of I/O | 113 |
| Maximum System Frequency | 278 MHz |
| Process Technology | 0.25 um CMOS |
| Supply Voltage | 2.25 V to 5.25 V |
| Core Voltage | 2.5 V |
| Speed Grade | -1 |
| Operating Temperature | -40C to +85C |
| Package | 144-LQFP / TQFP-144 |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| Programmable Type | One-Time Programmable (Antifuse) |
| RoHS Status | RoHS Compliant |
| Package Height | 1.4 mm |
A54SX32A-1TQG144I 1.4 mm Pin Configuration Guide
Complete pinout information for A54SX32A-1TQG144I (1.4 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 A54SX32A-1TQG144I.
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
A54SX32A-1TQG144I is suitable for 6 applications: Industrial Automation and Control, Aerospace and Defense Subsystems, Communications Bridging and Line Cards, Legacy Design Sustainment and Last-Time-Buy Bridge, Secure Instant-On Control Logic, Test and Measurement Instrumentation.
Industrial Automation and Control
The A54SX32A-1TQG144I fits industrial control and factory automation because its -40C to +85C industrial rating and 2.25V to 5.25V supply range per distributor data allow direct integration into legacy 5V PLC backplanes and modern 3.3V subsystems alike. In these systems it typically implements sequencer state machines, I/O expansion decoding, and fieldbus glue logic where the 278 MHz capability far exceeds required timing. Its antifuse configuration is active within microseconds of power-up, which matters for safety interlocks that must function before any configuration controller loads a bitstream. Unlike SRAM FPGAs, no external configuration flash is needed, reducing BOM count and eliminating a common industrial failure point. Place it between sensor connectorry and a microcontroller, decoupling each 2.5V/3.3V supply pin with 0.1uF ceramics.
Recommended
Aerospace and Defense Subsystems
The Actel/Microsemi SX-A heritage makes the A54SX32A-1TQG144I a natural fit for defense and aerospace board designs that demand configuration security and single-event-upset-immune configuration storage. Because the antifuse interconnect is permanently programmed, there is no bitstream in external memory to read out, clone, or corrupt - a documented advantage of the family emphasized by Microchip. The M-suffix screened variants (e.g., A54SX32A-1TQG144M) extend this part into hi-rel flows on the same footprint, letting one PCB layout serve both commercial prototypes and qualified builds. Typical roles include telemetry formatting, bus bridging, and wrapper logic around ASICs. Budget 113 user I/O carefully and reserve routing headroom, since the one-time-programmable array cannot be reworked in the field after launch.
Recommended
Communications Bridging and Line Cards
In telecom and datacom line cards, the A54SX32A-1TQG144I implements protocol glue, serial-to-parallel conversion, and address decoding between physical-layer devices and backplane controllers. Its 1800-cell array with 2880 CLBs provides enough capacity for moderately complex state machines, while the -1 speed grade's 278 MHz internal performance comfortably covers common line-card timing budgets in the tens of megahertz. The 113 user I/O in the 144-pin TQFP exposes wide parallel buses needed for legacy T1/E1 and backplane interfaces that modern small-packages cannot accommodate. Antifuse determinism also guarantees fixed routing delays, simplifying timing closure without iterative place-and-route spins. Use the industrial temperature variant for outside-plant equipment and decouple all supply pins to control ground bounce on wide switching buses.
Recommended
Legacy Design Sustainment and Last-Time-Buy Bridge
Many deployed systems were architected around Actel SX and SX-A antifuse FPGAs, and the A54SX32A-1TQG144I remains the standard sustainment choice for these boards. Because the die, footprint, and programming flow are unchanged, procurement teams can keep producing legacy PCBs without respin, using the -2 speed grade A54SX32A-2TQG144I as a guaranteed-timing drop-in when -1 stock tightens. The TQFP-144 package is hand-reworkable compared with fine-pitch BGA equivalents, an operational advantage for low-volume maintenance depots. When migrating away eventually, engineers should plan a full redesign toward SRAM FPGAs, since pin-compatible cross-brand substitutes do not exist for this proprietary pinout. Maintain archived Libero project files and fuse files with revision control to keep the one-time-programmable build reproducible across years of production.
Recommended
Secure Instant-On Control Logic
Applications that must act within microseconds of power application - power-supply sequencing managers, secure boot gatekeepers, and safety interlocks - benefit from the A54SX32A-1TQG144I's inherent instant-on behavior. Antifuse configuration is physically hard-wired at programming time, so the logic is operational immediately, whereas SRAM FPGAs remain inert for tens of milliseconds while a configuration device loads the bitstream. The same property delivers configuration security: there is no stored bitstream to dump, and the routing cannot be probed electrically without destroying the part. With 113 I/O the device can monitor dozens of enable lines and enforce complex power-rail sequencing policies deterministically. Design the sequencing truth table conservatively and verify it exhaustively in simulation, because one-time programmability makes post-deployment logic changes impossible.
Recommended
Test and Measurement Instrumentation
Bench and automated test equipment frequently needs custom timing, counters, and bus adapters, and the A54SX32A-1TQG144I covers these roles with 2880 CLBs and deterministic antifuse routing delays that keep measurement timing repeatable between units. The 113 user I/O support wide parallel interfaces to test fixtures, while the 278 MHz internal capability handles high-resolution timestamp counters. The 144-pin TQFP is socket-friendly for bench prototypes, and the industrial -40C to +85C rating permits unconditioned test-rack environments. Because the part is one-time programmable, allocate engineering units during development and freeze the design before ordering production quantities. Instrument makers also value that a programmed FPGA cannot be reconfigured in the field, guaranteeing that shipped instruments retain their calibrated behavior throughout service life.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32A-1TQG144I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32A-2TQG144I | A54SX32A-1TQG144 | A54SX32A-1TQG144M | A54SX32A-TQG144I |
|---|---|---|---|---|---|
| Package | 144-LQFP (TQFP-144) | 144-LQFP (TQFP-144) - same | 144-LQFP (TQFP-144) - same | 144-LQFP (TQFP-144) - same | 144-LQFP (TQFP-144) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 48000 | 48000 | 48000 | 48000 | 48000 |
| User I/O | 113 | 113 | 113 | 113 | 113 |
| Speed Grade | -1 (278 MHz) | -2 (faster timing) | -1 (278 MHz) | -1 (278 MHz) | base (verify suffix) |
| Operating Temperature | -40C to +85C | -40C to +85C | Commercial range | Screened (M) flow | -40C to +85C |
| Programmable Type | One-Time Programmable (Antifuse) | One-Time Programmable (Antifuse) | One-Time Programmable (Antifuse) | One-Time Programmable (Antifuse) | One-Time Programmable (Antifuse) |
| Unit Price (qty 1, as of 2026-09-03) | $42.50 | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Guaranteed timing margin via faster speed grade (vs A54SX32A-2TQG144I)
- Industrial temperature rating (vs A54SX32A-1TQG144)
- Standard industrial flow vs screened hi-rel (vs A54SX32A-1TQG144M)
- Instant-on antifuse configuration (vs SRAM FPGA alternatives (e.g., Lattice ECP5))
Design Notes
The SX-A family operates from a 2.25V to 5.25V supply per distributor data with a 2.5V nominal core. Decouple every VDD/VSS pin pair on the TQFP-144 with 0.1uF ceramic capacitors placed within 2 mm of the pins, and add one 10uF bulk capacitor per supply domain. Because antifuse FPGAs draw no configuration current at power-up, inrush is dominated by I/O charging - size the rail for simultaneous switching of the 113 user outputs. Estimated: 113 outputs switching 10 pF loads at 50 MHz can demand hundreds of milliamps of transient current, so plan the plane accordingly.
The A54SX32A is one-time programmable: a logic error discovered after programming permanently consumes a device. Always complete gate-level simulation with SDF timing, then program one engineering unit and validate on real hardware before committing the tray. Also confirm speed grade during procurement - a -1 device cannot be re-marked to -2, and timing failures on a -1 substitution of a -2 design will not show up until system test. Source both grades from authorized distributors to avoid remarked counterfeit parts common on mature Actel families.
The TQFP-144 has a 0.5 mm lead pitch, requiring solder-mask-defined pads of approximately 0.3 x 1.5 mm and a no-clean or water-wash paste process with careful stencil aperture design to prevent bridging. Use a 0.12 mm stencil for these fine-pitch leads. Fan out I/O on inner layers where possible and reserve JTAG/programming pin access per the Microchip SX-A datasheet programming section so production programmers can reach the device after assembly.
Per the Microchip SX-A family datasheet, thermal characteristics depend on device, package, operating temperature, operating current, and the system's ability to dissipate heat. For the TQFP-144, provide at least 2 oz copper ground pour connected to the thermal relief area; at the low gate utilization typical of glue-logic designs, power dissipation rarely requires a heatsink, but compute junction temperature from your actual toggle rate in Libero power analysis rather than assuming worst case.
Compliance Information
Parametric listings describe the part as ROHS COMPLIANT (FindIC listing). REACH, halogen-free, and conflict-minerals status not stated in retrieved data - confirm via Microchip compliance documentation.
