A54SX32-BG329M - 32K Gate FPGA 240MHz 329-BGA | Microsemi
MPN: A54SX32-BG329M ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $547.89 | $547.89 |
| 10 | $545.5 | $5,455.00 |
| 100 | $542.75 | $54,275.00 |
| 500 | $540.15 | $270,075.00 |
| 1,000 | $537.55 | $537,550.00 |
Drop-in alternatives for A54SX32-BG329M — 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:
A54SX32-BG329
✅ Drop-In✓ In Stock
$510 / Unit
View Datasheet →A54SX32-BG329I
✅ Drop-In✓ In Stock
$560 / Unit
View Datasheet →A54SX32-1BG329
✅ Drop-In✓ In Stock
$584.53 / Unit
View Datasheet →A54SX32-2BG329
✅ Drop-In✓ In Stock
$46.3 / Unit
View Datasheet →A54SX32-1BG329I
✅ Drop-In✓ In Stock
$628.26 / Unit
View Datasheet →A54SX32-BGG329
✅ Drop-In✓ In Stock
$515.58 / Unit
View Datasheet →A54SX32A-BG329M
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX32-BG329M Maximum Ratings & Electrical Characteristics
| Family | Actel SX (54SX) |
| System Gates | 32000 gates |
| Logic Cells | 1800 cells |
| Logic Modules (CLBs) | 2880 |
| Number of I/O | 249 |
| Maximum Frequency | 240 MHz |
| Process Technology | 0.35 um CMOS |
| Supply Voltage | 3.0 V to 3.6 V and 4.75 V to 5.25 V |
| Core Voltage (nominal) | 3.3 V / 5 V |
| Programmability Type | Antifuse (One-Time Programmable) |
| Speed Grade | M (standard) |
| Operating Temperature | 0C to +70C (TA) |
| Package | 329-BBGA |
| Ball Pitch | 1.27 mm |
| Mounting Type | Surface Mount (SMD) |
| Typical Combinational Delay | 900 ps (family representative) |
A54SX32-BG329M 329-bbga Pin Configuration Guide
Complete pinout information for A54SX32-BG329M (329-bbga 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-BG329M.
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-BG329M is suitable for 6 applications: Industrial Control and Automation, Aerospace and Defense Legacy Systems, Telecommunication Line Cards, ASIC Prototyping and Glue Logic Consolidation, Legacy 5V System Repair and Sustainment, Secure Embedded Controllers.
Industrial Control and Automation
The A54SX32-BG329M fits industrial control because its 3.3V/5V dual supply range (3.0V-3.6V and 4.75V-5.25V) directly interfaces with legacy 5V TTL PLC I/O that modern SRAM FPGAs cannot tolerate without level shifters. With 249 user I/O and 2,880 logic modules, it consolidates glue logic, address decoding, and sequencing functions from multiple TTL/PLD devices into one instant-on antifuse device. Because configuration is hard-coded in antifuses, the design powers up functional within microseconds with no configuration PROM and cannot be corrupted by brown-outs or noise on a factory floor. Typical deployment is motor sequencing, interlock logic, and fieldbus interface bridges in control cards where 240 MHz internal performance far exceeds the timing needs of I/O-state-machine logic.
Recommended
Aerospace and Defense Legacy Systems
Aerospace and defense programs value the A54SX32-BG329M for its inherent configuration security: the antifuse bitstream cannot be read back, which satisfies design-protection requirements that SRAM FPGAs address only with encryption and battery-backed keys. The SX family was widely qualified in military line-replaceable units, and the 329-ball BGA with 249 I/O supports dense bus-interface logic such as MIL-STD-1553 and ARINC 429 companion interfaces. For sustainment engineering, the availability of the industrial A54SX32-BG329I and faster -1/-2 grades in the same footprint allows requalification with minimal board change. Because these programs run for decades, securing lifetime-buy stock and re-verifying programmed units with the original Microsemi Designer netlist is the recommended sustainment strategy.
Recommended
Telecommunication Line Cards
Telecom line cards historically ran 5V backplane signaling, and the A54SX32-BG329M's 4.75V-5.25V supply range plus 3.3V operation makes it a natural single-chip replacement for glue-logic clusters on T1/E1 and STM-n framer boards. The 240 MHz maximum toggle rate comfortably covers framing, clock dividers, and Alarm Indication Signal handling, while 1,800 cells absorb address decode, interrupt aggregation, and LED/status multiplexing. The antifuse, one-time-programmable nature eliminates configuration-load time at card insertion, supporting hot-swap serviceability expectations in carrier equipment. Designers should budget board area for the 1.27 mm pitch 329-BBGA and follow SX datasheet decoupling guidance (multiple 0.1 uF caps per supply ball group) to keep simultaneous-switching noise within margins.
Recommended
ASIC Prototyping and Glue Logic Consolidation
At 32,000 gates and 1,800 cells, the A54SX32-BG329M is sized for ASIC subset emulation and consolidating dozens of 74-series or PAL devices into a single 329-ball package. The sea-of-modules architecture delivers predictable, wire-load-like timing, so RTL blocks prototyped on SX behave closer to gate-array silicon than SRAM FPGA fabrics with clustered routing. Because it is one-time-programmable, teams typically iterate in simulation and optionally on the SRAM-like SX-A family, then commit the production antifuse part. Instant-on behavior is useful for boot-sequencer and reset-controller prototypes that must be alive before a processor finishes configuration. The 249 user I/O provides ample pin mirroring for internal-node probing during bring-up.
Recommended
Legacy 5V System Repair and Sustainment
For repair depots maintaining 1990s-era equipment, the A54SX32-BG329M is often the only FPGA family that natively meets 5V bus requirements while matching the original BGA footprint. Replacing a failed programmed device with the same speed grade and reprogramming from archived fuse files (with the original Actel programmer) restores function without PCB redesign. Sourcing priority is the same-package siblings BG329/BG329I/-1BG329/-2BG329, all pin-to-pin compatible with the -M. Verify the replacement's temperature grade matches the card specification, and confirm the programming file targets the exact family (SX versus SX-A) since fuse files are not portable. Maintain programmer hardware availability as part of the sustainment plan for end-of-life Actel devices.
Recommended
Secure Embedded Controllers
Embedded controllers that must resist intellectual-property extraction benefit from the A54SX32-BG329M's non-readable antifuse configuration: unlike SRAM FPGAs, there is no bitstream in external memory and no readback path, so cloning requires destructive decapping. The instant-on characteristic also eliminates the configuration window exploited in bitstream-sniffing attacks on SRAM parts. With 2,880 modules, a secure controller can implement state machines, access-control comparators, and tamper-response logic in one device, while the 249 I/O connect to sensors, relays, and communication transceivers. Commercial 0C to +70C rating suits indoor secure enclosures; select the BG329I variant for extended ambient ranges. Combine with a supervisory circuit for supply-rail sequencing of the dual 3.3V/5V domains.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-BG329M — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-BG329 | A54SX32-BG329I | A54SX32-1BG329 | A54SX32A-BG329M |
|---|---|---|---|---|---|
| Package | 329-BBGA (1.27 mm pitch) | 329-BBGA - same | 329-BBGA - same | 329-BBGA - same | 329-BBGA - same |
| Brand | Microsemi (Actel) | Microsemi (Actel) | Microsemi (Actel) | Microsemi (Actel) | Microchip Technology |
| System Gates | 32000 gates | 32000 gates | 32000 gates | 32000 gates | 32000 gates |
| User I/O | 249 | 249 | 249 | 249 | 249 |
| Max Frequency | 240 MHz | 240 MHz | 240 MHz | 240 MHz (higher guaranteed at speed grade) | 238 MHz |
| Supply Voltage | 3.0-3.6 V / 4.75-5.25 V | 3.0-3.6 V / 4.75-5.25 V | 3.0-3.6 V / 4.75-5.25 V | 3.0-3.6 V / 4.75-5.25 V | 2.5 V core (0.25 um) |
| Operating Temperature | 0C to +70C (commercial) | 0C to +70C | -40C to +85C (industrial) | 0C to +70C | 0C to +70C |
| Process Technology | 0.35 um CMOS antifuse | 0.35 um CMOS antifuse | 0.35 um CMOS antifuse | 0.35 um CMOS antifuse | 0.25 um CMOS antifuse |
| Reference Unit Price (as of 2026-09-03) | [DATA_NEEDED: A54SX32-BG329M direct quote] | $547.89 (qty 1) | [DATA_NEEDED] | [DATA_NEEDED] | [DATA_NEEDED] |
Key Differentiators
- Native dual 3.3V/5V operation (vs A54SX32A-BG329M)
- Higher guaranteed frequency at faster grades (vs A54SX32A-BG329M)
- Instant-on, non-readable configuration (vs A54SX32-BG329 (same), modern SRAM FPGAs)
Design Notes
The A54SX32-BG329M supports dual supply domains (3.0V-3.6V and 4.75V-5.25V). Decouple each supply ball group with 0.1 uF ceramic capacitors placed within a few millimeters of the balls, plus bulk 10 uF per rail. Static power is inherently low due to antifuse interconnect, but dynamic power rises with clock frequency and I/O toggle rate; estimate power with Microchip/Actel Designer using your actual netlist rather than a generic figure. Verify power-up ramp rates against the SX datasheet specification to guarantee correct antifuse device initialization.
This is a one-time-programmable device: there is no in-system reconfiguration and no design iteration after programming. Complete functional simulation, timing analysis, and (where possible) prototype on the SX-A family before committing production units. Also confirm that archived fuse/programming files target the SX family, not SX-A; files are not portable between families. Finally, a faster speed grade (-1/-2) can replace the -M with the same design, but the reverse is not guaranteed - check worst-case timing margins before substituting a slower grade.
The 329-BBGA uses a 1.27 mm ball pitch; design the footprint per the SX datasheet package drawing and route escape fan-out with via-in-pad or dog-bone patterns on 0.8 mm+ grid. Signal integrity: group 249 user I/O by bank and keep simultaneously switching groups short with series termination where line lengths exceed a few inches, especially in 5V-tolerant legacy interfaces. The commercial 0C to +70C rating of the -M grade means no industrial-temperature margin - specify A54SX32-BG329I if the enclosure can exceed room ambient.
Compliance Information
Legacy Actel/Microsemi part predating standardized RoHS reporting; G-suffix BGG variants typically denote lead-free balls. Request certificate of conformance for exact ordering code. Temperature/compliance data not stated in retrieved web data.
