A54SX32A-1FGG256I - 48K Gate FPGA, 203 I/O, FBGA-256 | Microchip
MPN: A54SX32A-1FGG256I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $316.27 | $316.27 |
| 10 | $316.27 | $3,162.70 |
| 100 | $316.27 | $31,627.00 |
| 500 | $316.27 | $158,135.00 |
| 1,000 | $316.27 | $316,270.00 |
Drop-in alternatives for A54SX32A-1FGG256I — 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-2FGG256I
✅ Drop-In✓ In Stock
$368.59 / Unit
View Datasheet →A54SX32A-FGG256I
✅ Drop-In✓ In Stock
$83.27 / Unit
View Datasheet →A54SX32A-1FGG256
✅ Drop-In✓ In Stock
$1 / Unit
View Datasheet →A54SX32A-1FGG256M
✅ Drop-In✓ In Stock
$62.5 / Unit
View Datasheet →A54SX32A-FFG256
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX32A-1FGG484
✅ Drop-In✓ In Stock
$1 / Unit
View Datasheet →A54SX32A-1FGG256I Maximum Ratings & Electrical Characteristics
| Family | SX-A (Antifuse FPGA) |
| System Gates | 48000 |
| Logic Cells / Modules | 2880 (per FindIC); 1800 (per FindIC compare page) |
| User I/O | 203 |
| Speed Grade | -1 |
| System Toggle Frequency | up to 278 MHz (FindIC); 172 MHz cited for alternate grade listing |
| Core Supply Voltage | 2.5 V (2.25 V to 2.75 V) |
| Process Technology | 0.25 um CMOS |
| Programmable Interconnect | Antifuse (one-time programmable, non-volatile) |
| Operating Temperature | -40C to +125C (industrial, I suffix) |
| Package | FBGA-256 (PBGA256), 1 mm ball pitch |
| Mounting Type | Surface Mount (SMD/SMT) |
| RoHS Status | Compliant |
| Configuration Storage | Non-volatile (no external boot device required) |
| Manufacturer Status | Active (ships today per DigiKey; Mouser lists 12-week lead time) |
A54SX32A-1FGG256I [data_needed: standard reel/tray quantity] Pin Configuration Guide
Complete pinout information for A54SX32A-1FGG256I ([data_needed: standard reel/tray quantity] 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.
![[data_needed: standard reel/tray quantity] package pinout diagram for A54SX32A-1FGG256I](/assets/package-diagrams/default.svg?v=1788069619)
No detailed pinout data available for A54SX32A-1FGG256I.
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-1FGG256I is suitable for 6 applications: Industrial Control and Automation, Aerospace and Defense Logic, Communications and Networking Equipment, Medical Instrumentation, ASIC Prototyping and Bridge Logic, Secure Embedded Systems.
Industrial Control and Automation
In factory automation and process control, the A54SX32A-1FGG256I consolidates glue logic, bus bridges, encoder interfaces, and safety interlock state machines into one 48K-gate antifuse device. Its industrial -40C to +125C rating survives harsh panel and motor-drive environments, and the 2.5 V core with near-zero static configuration power suits always-on control racks. Because the antifuse configuration is non-volatile, the FPGA is functional within microseconds of power application - no boot sequence - which matters for safety interlocks and watchdog architectures that must be live at power-up.
Recommended
Aerospace and Defense Logic
The SX-A antifuse family has a long heritage in aerospace and defense programs, and the M-suffix variants of the same die are screened for high-reliability use. The A54SX32A-1FGG256I provides configuration readback security - the programmed antifuse network cannot be dumped - which addresses anti-tamper concerns that SRAM FPGAs cannot meet without extra encryption. Its instant-on non-volatile startup removes the vulnerability window during configuration loading. Typical roles include telemetry formatting, bus protocol bridging, and payload sequencing where single-chip integration reduces parts count and board area in constrained avionics volumes.
Recommended
Communications and Networking Equipment
Telecom line cards and backplane interfaces use the A54SX32A-1FGG256I for protocol adaptation, framing, and register-based control planes. The -1 speed grade supports toggle rates up to the 172-278 MHz range cited across sources, adequate for many legacy parallel bus and framing tasks, while the 203 user I/O handles wide parallel data buses that serial-only FPGAs cannot absorb without external serialization. Its low static power reduces line-card thermal budgets, and non-volatile configuration simplifies card insertion: the FPGA is logic-active immediately upon slot power without a host-driven configuration download.
Recommended
Medical Instrumentation
Diagnostic and monitoring instruments use the A54SX32A-1FGG256I to interface sensor front ends, drive display logic, and manage timing. The 2.5 V core keeps dynamic power low, which limits self-heating inside enclosed patient-contact equipment, and the industrial temperature grade covers sterilization-adjacent thermal excursions. Antifuse determinism - fixed routing programmed once - gives repeatable timing behavior across units, valuable for instruments validated under regulatory change control, where a reprogrammable device could drift between validation and field units. Its 48K gates comfortably host state machines, counters, and peripheral glue logic typical of benchtop instruments.
Recommended
ASIC Prototyping and Bridge Logic
Before committing an ASIC tape-out, engineering teams historically mapped RTL into SX-A antifuse FPGAs to validate logic at speed. The A54SX32A-1FGG256I's 48K gates host moderate-size functional blocks, and fixed antifuse routing delivers timing closer to silicon reality than highly reconfigurable fabrics. The same device also serves as ASIC-to-legacy-bus bridge silicon in products where an obsoleted ASIC function must be recreated without redesigning the whole board. Designers should finalize RTL before programming since antifuse parts cannot be reworked - each design iteration consumes a new device.
Recommended
Secure Embedded Systems
Where IP protection is paramount, the A54SX32A-1FGG256I stores configuration physically in antifuse links rather than SRAM or flash bitstreams, eliminating the primary attack vector of bitstream interception. Coupled with the instant-on startup, it suits secure boot anchors, license enforcement logic, and authentication state machines inside industrial and networking products. The device contains no external configuration memory interface to probe, shrinking the hardware attack surface. Designers pair it with a secured MCU; the FPGA holds the deterministic security logic while the MCU manages keys and application software.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32A-1FGG256I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32A-2FGG256I | A54SX32A-FGG256I | A54SX32A-1FGG256 | A54SX32A-FFG256 | A54SX32A-1FGG484 |
|---|---|---|---|---|---|---|
| Package | FBGA-256 (1 mm pitch) | FBGA-256 - same | FBGA-256 - same | FBGA-256 - same | FBGA-256 - same | FBGA-484 - different ball count |
| Brand | Microchip Technology (Microsemi) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 48000 | 48000 | 48000 | 48000 | 48000 | 48000 |
| Speed Grade / Toggle Rate | -1 (172-278 MHz range cited) | -2, fastest grade | standard, 238 MHz cited | -1 | standard | -1 |
| Operating Temperature | -40C to +125C (I) | -40C to +125C (I) | -40C to +125C (I) | Commercial range | Commercial range | Commercial range |
| User I/O | 203 | 203 | 203 | 203 | 203 | up to 288 (larger package) |
| Core Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Configuration Type | Antifuse (OTP, non-volatile) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
| Reference Price (qty ~90) | $316.27 (Mouser, as of 2026-09-03) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Fastest timing option in the same footprint (vs A54SX32A-2FGG256I)
- Industrial temperature qualification (vs A54SX32A-1FGG256)
- Antifuse configuration security and instant-on startup (vs SRAM FPGAs (e.g., modern Microchip families))
Design Notes
The A54SX32A-1FGG256I operates from a 2.5 V core (2.25 V to 2.75 V per Mouser data). Estimated: with 2,880 logic modules switching at moderate activity and the -1 speed grade, core current is typically in the tens-of-mA range, but dynamic power scales with toggle rate - verify with Microchip's Designer power calculator using your actual netlist. Provide solid 2.5 V and I/O bank rails with local 0.1 uF decoupling per ball-bank plus bulk 10 uF, and respect the FBGA-256 power/ground ball assignment from the SX-A datasheet.
The FBGA-256 package uses a 1 mm ball pitch, requiring a controlled-impedance substrate with via-in-pad or dog-bone fanout. Follow the SX-A datasheet package section for ball A1 orientation and program the design database with the correct package/speed-grade settings. Because antifuse devices cannot be reprogrammed, program parts only after full design sign-off, and order programmed spares; programming yield and long factory lead times (12 weeks at Mouser as of 2026-09-03) make buffer stock prudent.
Do not confuse speed grades and temperature suffixes when sourcing: -1 vs -2 changes timing closure results, and I vs non-I changes the temperature guarantee (-40C to +125C vs commercial). Mixing them silently breaks validated builds. Also, there is no true cross-brand pin-compatible substitute for this antifuse FPGA; any competitor replacement is a redesign. Finally, confirm Libero/Designer software support for SX-A before starting new RTL work, as legacy tool licensing can be the real lifecycle constraint.
Compliance Information
FindIC listing states ROHS COMPLIANT for A54SX32A-1FGG256I. REACH, halogen-free, and conflict-minerals status not stated in the provided data.
