A54SX32-2BG329 - 32K-Gate SX FPGA, 320MHz, BGA-329 | Microchip
MPN: A54SX32-2BG329 ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $62.5 | $62.50 |
| 10 | $58.2 | $582.00 |
| 100 | $53.75 | $5,375.00 |
| 500 | $49.9 | $24,950.00 |
| 1,000 | $46.3 | $46,300.00 |
Drop-in alternatives for A54SX32-2BG329 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX32-2BGG329I
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$88.9 / Unit
View Datasheet →A54SX32-2BGG329
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View Datasheet →A54SX32-1BGG329I
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$47.8 / Unit
View Datasheet →A54SX32-1BGG329
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$544.99 / Unit
View Datasheet →A54SX32-BG329I
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$560 / Unit
View Datasheet →A54SX32-BGG329I
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View Datasheet →A54SX32A-2BG329
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX32-2BG329 Maximum Ratings & Electrical Characteristics
| Family | SX (Actel/Microsemi) |
| System Gates | 32,000 gates |
| CLBs | 2880 |
| Logic Cells (Modules) | 1800 |
| Maximum Toggle Frequency | 320 MHz |
| Speed Grade | -2 |
| Process Technology | 0.35 um CMOS |
| Supply Voltage | 3.3 V nominal (3.0 V to 3.6 V) |
| I/O Voltage Compatibility | 3.3 V / 5 V tolerant |
| User I/Os | 249 |
| Package | 329-ball BGA (BG329) |
| Mounting Type | Surface Mount |
| Architecture | Sea-of-modules |
| Programming Technology | Nonvolatile (Actel SX programming) |
A54SX32-2BG329 329-ball bga (bg329) Pin Configuration Guide
Complete pinout information for A54SX32-2BG329 (329-ball bga (bg329) 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 A54SX32-2BG329.
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
A54SX32-2BG329 is suitable for 6 applications: Telecommunications Line Cards, Industrial Control and Data Acquisition, Test and Measurement Instrumentation, Aerospace and Defense Logic Replacement, Legacy Board Sustainment and Obsolescence Management, Protocol Bridging and Interface Conversion.
Telecommunications Line Cards
The A54SX32-2BG329 fits telecommunications line-card logic because its 320 MHz toggle capability and sea-of-modules fabric handle framing, multiplexing, and backplane glue logic with deterministic delays. With 249 user I/Os in a 329-ball BGA, wide parallel buses to PHY and framer devices are supported without pin starvation. The device operates from a standard 3.3V card supply (3.0V to 3.6V) with 5V-tolerant I/O for legacy backplane signaling. Place 0.1 uF ceramic decoupling at each supply ball pair; the nonvolatile configuration removes the boot PROM required by SRAM FPGAs, simplifying card power-up sequencing and reducing BOM count in telecom racks.
Recommended
Industrial Control and Data Acquisition
In industrial controllers and DAQ systems, the A54SX32-2BG329 implements state machines, address decoders, and parallel interface bridging for sensors and actuators. Its 32K gates and 2880 CLBs provide sufficient capacity for moderate control logic, while the 0.35 um CMOS process keeps static power low in sealed enclosures with limited airflow. The industrial-temperature sibling A54SX32-2BGG329I drops into the identical footprint when -40C to +85C operation is required. The nonvolatile SX configuration ensures the controller is instantly active at power-on without configuration hardware, improving fault-recovery behavior in factory automation lines subject to frequent power cycling.
Recommended
Test and Measurement Instrumentation
Bench and automated test instruments use the A54SX32-2BG329 for timing generators, trigger logic, and bus interfaces (GPIB-class parallel timing, counter/timer functions). The -2 speed grade's 320 MHz toggle rate and predictable inter-module delays allow precise edge placement in stimulus generation, and the 249 I/Os support multi-channel test heads. Because SX fabric timing is deterministic, calibration routines can rely on stable propagation characteristics across units. The 3.3V supply with 5V-tolerant inputs eases integration with legacy instrument circuitry still running at 5V logic levels, avoiding level-shifters on mixed-voltage test fixtures.
Recommended
Aerospace and Defense Logic Replacement
The SX family's heritage in military and aerospace programs makes the A54SX32-2BG329 a sustainment choice for avionics boards needing form-fit-function refresh. The nonvolatile programming technology avoids configuration-storage devices susceptible to SEU-induced loss of configuration at power transition, and the sea-of-modules fabric supports the deterministic timing analysis documentation common in aerospace qualification packages. Temperature-grade variants (A54SX32-2BGG329I) cover extended ranges in the same 329-ball BGA footprint. For new aerospace designs, Microchip's RTAX radiation-tolerant family supersedes SX, but for existing platforms the SX32 remains a documented, sourcing-supported logic device.
Recommended
Legacy Board Sustainment and Obsolescence Management
OEMs supporting long-life equipment use the A54SX32-2BG329 as the anchor for last-time-buy planning and footprint-compatible sparing. Because the full BG329 variant set (A54SX32-1BGG329I, A54SX32-BG329I, A54SX32A-2BG329) shares the 329-ball BGA land pattern, a single PCB layout accepts multiple speed and temperature grades, maximizing second-source flexibility when any one grade allocates. Procurement teams can alternate among grades based on timing margin analysis: designs closing timing at 240 MHz-class performance can accept the standard grade when -2 stock is constrained. Maintain recompile-capable design source in Actel/Microchip Designer tools to re-target grades without PCB changes.
Recommended
Protocol Bridging and Interface Conversion
The A54SX32-2BG329 serves as a protocol bridge between legacy parallel buses and embedded controllers, implementing FIFOs, bus arbitration, and level-conforming interfaces in one device. Its 5V-tolerant I/O connects directly to TTL-era peripherals while the 3.3V core interfaces to modern microcontrollers, removing external bus-transceiver banks. With 32K gates, dual independent bus masters with arbitrated shared memory can be implemented alongside the bridge core. Deterministic fabric timing simplifies meeting bus setup/hold budgets specified in microseconds-class legacy timing diagrams. The 329-ball BGA keeps signal lengths matched, important when bridging clocked parallel buses above 50 MHz.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-2BG329 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-2BGG329I | A54SX32-1BGG329I | A54SX32-BG329I | A54SX32A-2BG329 |
|---|---|---|---|---|---|
| Package | 329-ball BGA (BG329) | 329-ball BGA - same | 329-ball BGA - same | 329-ball BGA - same | 329-ball BGA - same |
| Brand | Microchip Technology (Microsemi/Actel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 32,000 | 32,000 | 32,000 | 32,000 | 32,000-class (SX32A die) |
| Speed Grade / Max Toggle | -2 / 320 MHz | -2 / 320 MHz | -1 / slower than -2 | standard / 240 MHz-class | -2 / 320 MHz-class |
| CLBs | 2880 | 2880 | 2880 | 2880 | [DATA_NEEDED] |
| Supply Voltage | 3.3 V nominal (3.0-3.6 V) | 3.3 V nominal (3.0-3.6 V) | 3.3 V nominal (3.0-3.6 V) | 3.3 V nominal (3.0-3.6 V) | [DATA_NEEDED] |
| User I/Os | 249 | 249 | 249 | 249 | [DATA_NEEDED] |
| Temperature Range | Commercial (standard) | Industrial | Industrial | Industrial | Commercial |
| Package Finish | Standard (non-green) | Green | Green | Standard | Standard |
Key Differentiators
- Fastest SX32 speed grade in the family (vs A54SX32-BG329I)
- Standard temperature rating at lower cost (vs A54SX32-2BGG329I)
- Proven legacy SX32 die (vs SX32A) (vs A54SX32A-2BG329)
Design Notes
Supply the A54SX32-2BG329 from a regulated 3.3V rail with an allowed window of 3.0V to 3.6V. Estimated: with 32K gates of 0.35 um CMOS fabric, static current is modest, but dynamic current scales with toggle rate - a design toggling a significant fraction of the fabric near 100 MHz can draw hundreds of milliamps, so size the core rail regulator accordingly. Place 0.1 uF ceramic decoupling capacitors on every supply ball pair plus bulk 10 uF near the BGA. The SX family also supports 5V-tolerant I/O; consult the SX datasheet input-structure section before driving balls from 5V logic.
The 329-ball BGA requires a controlled-impedance breakout with via-in-pad or dog-bone fanout. Follow the Microchip SX datasheet BG329 ball map exactly and verify your CAD footprint against SnapEDA's verified A54SX32-2BG329 symbol/footprint. Use at least 4 layers with a solid ground plane under the BGA to return high-speed switching currents. Because the same footprint accepts -1, -2, standard, and industrial grades, design the land pattern to the most restrictive reflow profile of the green (BGG) variants to keep the layout multi-source ready.
Do not assume stock continuity: the SX family is mature, and Octopart shows only 6 distributors carrying the A54SX32-2BG329. Qualify at least one same-footprint substitute (A54SX32-2BGG329I preferred - same -2 speed grade) in your design database before the primary part allocates. Also, timing closure must be re-verified when switching from -2 to -1 or standard grades; the toggle-rate drop is real, not nominal. Finally, keep the design source recompilable in Actel/Microchip Designer software, since BGA variants require re-targeting rather than bitstream reuse.
Compliance Information
Compliance status not stated in provided web data. The BGG (green) variants of the same family are typically the halogen-free options; verify RoHS/REACH status on the Microchip product page or certificate of conformance for the exact date code.
