A54SX32-BG329 - 48K Gate FPGA 329-BGA | Microsemi
MPN: A54SX32-BG329 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $547.89 | $547.89 |
| 10 | $537.55 | $5,375.50 |
| 100 | $530 | $53,000.00 |
| 500 | $520 | $260,000.00 |
| 1,000 | $510 | $510,000.00 |
Drop-in alternatives for A54SX32-BG329 — 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:
A54SX32-1BG329
✅ Drop-In✓ In Stock
$584.53 / Unit
View Datasheet →A54SX32-1BG329I
✅ Drop-In✓ In Stock
$628.26 / Unit
View Datasheet →A54SX32-2BG329
✅ Drop-In✓ In Stock
$46.3 / Unit
View Datasheet →A54SX32-2BG329I
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →A54SX32-BG329I
✅ Drop-In✓ In Stock
$560 / Unit
View Datasheet →A54SX32-BGG329I
✅ Drop-In✓ In Stock
Contact for price
View Datasheet →A54SX32-2BGG329I
✅ Drop-In✓ In Stock
$88.9 / Unit
View Datasheet →A54SX32-BG329 Maximum Ratings & Electrical Characteristics
| Family | SX (Actel SX) |
| System Gates | 48000 |
| Logic Cells | 1800 |
| Number of LABs/CLBs | 2880 |
| Number of I/O | 249 |
| Maximum System Frequency | 240 MHz |
| Process Technology | 0.35 um CMOS |
| Supply Voltage (Core) | 3 V to 3.6 V |
| Supply Voltage (I/O) | 4.75 V to 5.25 V |
| Programming Technology | Antifuse (one-time programmable) |
| Operating Temperature | 0C to +70C (TA) |
| Package | 329-BBGA / 329-PBGA (31x31 mm, 1.27 mm pitch) |
| Mounting Type | Surface Mount |
| Packaging | Tray |
| RoHS Status | Non-compliant |
| Manufacturer Lead Time | 20 weeks |
A54SX32-BG329 329-bbga / 329-pbga (31x31 mm, 1.27 mm pitch) Pin Configuration Guide
Complete pinout information for A54SX32-BG329 (329-bbga / 329-pbga (31x31 mm, 1.27 mm pitch) 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-BG329.
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-BG329 is suitable for 6 applications: Industrial Control and Automation, Communications and Networking Equipment, Test and Measurement Instrumentation, Military and Aerospace Legacy Upgrades, Legacy 5V Board Retrofit and Sustaining Engineering, Secure Embedded Logic and Copy Protection.
Industrial Control and Automation
The A54SX32-BG329 fits industrial control and factory automation systems that integrate legacy 5V TTL sensor and actuator interfaces with modern 3.3V logic. Its dual-supply architecture (3.0V-3.6V core, 4.75V-5.25V I/O) allows the 249 user I/O to connect directly to 5V PLC signals without level translators, while the 48,000-gate antifuse fabric implements deterministic state machines and interlock logic that must never lose configuration after power cycles, unlike SRAM FPGAs that need external configuration devices. At up to 240 MHz system speed, it comfortably handles high-speed counting, PWM generation, and bus bridging. Place it on a solid 0.1 uF decoupling network per supply ball and verify timing with the manufacturer's Libero timing models before committing, since antifuse devices are one-time programmable.
Recommended
Communications and Networking Equipment
In telecommunications line cards and networking backplane interfaces, the A54SX32-BG329 provides glueless integration of protocol logic, FIFOs, and bus arbitration. The sea-of-modules architecture delivers predictable routing delays, which matters for timing-critical functions such as SONET/SDH framers and TDM switching at clock rates approaching the 240 MHz device rating. The 329-ball BGA supplies up to 249 I/O, enough for wide parallel data paths (for example 64-bit or 96-bit buses) plus control, while the antifuse fabric adds no configuration-bitstream vulnerability on deployed telecom hardware. Designs typically pair the FPGA with a 3.3V core regulator and 5V-tolerant PHY interfaces. Verify I/O switching characteristics in the SX datasheet AC tables and budget ground balls for return current when driving many simultaneously switching outputs.
Recommended
Test and Measurement Instrumentation
Bench and automated test instruments use the A54SX32-BG329 as a high-speed pattern generator, counter/timer, and bus-interface engine. The 48,000-gate capacity implements deep event counters, triggering state machines, and multiple independent timing channels, while the deterministic antifuse routing keeps channel-to-channel skew low, which is critical when generating synchronized stimulus across instrument channels. The 5V I/O rail lets the device drive legacy GPIB-adjacent and TTL-level test fixtures directly, and the 240 MHz fabric rating supports sub-10 ns timing resolution in counter applications. For measurement integrity, keep clock inputs on dedicated low-skew balls, use differential or carefully terminated single-ended clocking, and recompile timing with Libero static timing analysis before programming production antifuse units.
Recommended
Military and Aerospace Legacy Upgrades
Although the commercial A54SX32-BG329 is rated 0C to +70C, its antifuse programming technology makes the SX family a natural fit for defense and aerospace sustaining programs that must replace obsolete ASICs or PALs on existing 5V boards. Antifuse fabric is non-volatile, single-event-upset-resistant at the configuration level, and immune to bitstream readback, addressing program-security concerns on deployed hardware. Designers commonly select the industrial A54SX32-BG329I or the lead-free A54SX32-BGG329I for extended environments while retaining the same 329-BGA footprint and 249 I/O for board spins. For upgrades, port legacy schematics into Libero, validate with simulation, and reprogram fresh devices since antifuse parts cannot be reworked after programming. Confirm program-level environmental requirements before choosing the commercial grade.
Recommended
Legacy 5V Board Retrofit and Sustaining Engineering
One of the strongest use cases for the A54SX32-BG329 is replacing EOL PAL/GAL/ASIC devices on existing 5V PCBs without redesigning power supplies. The 5.0V I/O rail (4.75V-5.25V) speaks native TTL levels to surrounding 1990s-era logic, while the 3.3V core keeps dynamic power manageable in the 48K-gate fabric. The 31x31 mm 329-BGA footprint accommodates wide legacy buses, and the one-time-programmable antifuse behaves like a masked ASIC in service, with no configuration PROM to fail. Engineers should map legacy pin functions onto the SX pinout during Libero import, check supply sequencing, and reserve JTAG programming access on the board. Choose the standard commercial BG329 for indoor equipment; select the BG329I for anything exposed to temperature extremes.
Recommended
Secure Embedded Logic and Copy Protection
Because antifuse FPGAs cannot be read back, the A54SX32-BG329 suits designs where proprietary logic must be protected from cloning: licensing dongles, encryption bridges, and authentication modules. Unlike SRAM FPGAs, whose bitstream can be intercepted at power-up, the SX family's programmed antifuses are physically irreversible and leave no configuration image in external memory, eliminating the most common attack vector. The 48,000 gates are sufficient for block-cipher datapaths, challenge-response engines, and board-ID logic, while the 249 I/O supports wide parallel interfaces to host processors. Design for security by minimizing unused I/O termination, using the 240 MHz fabric for time-critical operations, and verifying with Libero simulation prior to programming, since no post-programming changes are possible on the antifuse fabric.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-BG329 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-1BG329 | A54SX32-2BG329 | A54SX32-BG329I | A54SX32-BGG329I | A54SX32A-2BG329 |
|---|---|---|---|---|---|---|
| Package | 329-PBGA (31x31 mm, 1.27 mm pitch) | 329-PBGA - same | 329-PBGA - same | 329-PBGA - same | 329-PBGA - same | 329-PBGA - same |
| Brand | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) | Microsemi (Microchip) |
| Family / Process | SX, 0.35 um | SX, 0.35 um | SX, 0.35 um | SX, 0.35 um | SX, 0.35 um | SX-A, 0.25 um |
| System Gates | 48000 | 48000 | 48000 | 48000 | 48000 | 32000 (32K gates) |
| Rated Speed | 240 MHz | 278 MHz | [DATA_NEEDED] | 240 MHz | 240 MHz | 238 MHz |
| Supply Voltage | 3.3V core / 5.0V I/O | 3.3V core / 5.0V I/O | 3.3V core / 5.0V I/O | 3.3V core / 5.0V I/O | 3.3V core / 5.0V I/O | 2.5V |
| Operating Temperature | 0C to +70C | 0C to +70C | 0C to +70C | Industrial (-40C extended) | Industrial (-40C extended) | [DATA_NEEDED] |
| RoHS Compliance | Non-compliant | RoHS compliant (per FindIC) | [DATA_NEEDED] | [DATA_NEEDED] | Lead-free green package | [DATA_NEEDED] |
Key Differentiators
- Fastest widely stocked speed grade in same footprint (vs A54SX32-1BG329)
- Native 5V I/O interface (vs A54SX32A-2BG329)
- Lead-free and industrial-grade variants available (vs A54SX32-BGG329I)
Design Notes
The A54SX32-BG329 requires two independent rails: 3.3V core (3.0V-3.6V) and 5.0V I/O (4.75V-5.25V). Provide local decoupling with at least one 0.1 uF ceramic capacitor per supply ball pair plus bulk capacitance (10 uF-47 uF) near the device. Estimated: with 249 I/O switching 5V loads, transient I/O current can dominate the 5V rail, so size the 5V regulator for peak simultaneous switching current, not just DC core draw. Follow the SX family datasheet power-supply recommendations and verify sequencing - establish the core rail before allowing heavy I/O switching.
The 329-BBGA uses a 1.27 mm ball pitch on a 31x31 mm body. Route fan-out with standard via-in-pad or dog-bone escape patterns on at least a 4-layer board, dedicating inner layers to ground and the 3.3V core plane to minimize loop inductance for 240 MHz-class switching. Verify ball A1 orientation against the datasheet pinout before footprint release - a mirrored footprint on a 329-ball BGA is not reworkable. Solder with a standard SAC or SnPb profile appropriate to the package; confirm the exact ball metallurgy because the standard BG329 is RoHS non-compliant.
Antifuse FPGAs are one-time programmable: there is no rework after programming, so a full simulation plus static timing closure in Libero/Designer is mandatory before committing production devices. Do not assume timing from schematic review alone - use the manufacturer timing models for the -standard, -1, or -2 speed grade actually purchased, since a slower grade can fail 240 MHz-class constraints. Finally, remember the 20-week factory lead time; maintain buffer stock or a qualified drop-in (A54SX32-1BG329 or BGG329I variants) in your continuity plan.
Compliance Information
RoHS Status: RoHS non-compliant per Microchip USA product data. For RoHS-compliant builds, consider BGG329 green-package variants in the same family. Operating temperature 0C to +70C (commercial grade); industrial -I variants exist.
