A54SX32A-2BGG329I - 48K Gate SX-A FPGA 329-BGA | Microchip
MPN: A54SX32A-2BGG329I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $145 | $145.00 |
| 10 | $132 | $1,320.00 |
| 100 | $118.5 | $11,850.00 |
| 500 | $106 | $53,000.00 |
| 1,000 | $95 | $95,000.00 |
A54SX32A-2BGG329I Overview
An antifuse FPGA is a field-programmable gate array whose interconnect elements are permanently programmed at power-up by an on-chip circuit that blows microscopic antifuse links. Unlike SRAM-based FPGAs from Xilinx or Intel (Altera), an antifuse device is non-volatile and needs no configuration PROM, and its programmed connections are resistant to radiation-induced configuration upsets. Within the programmable logic hierarchy, the A54SX32A sits in the mid-density class of one-time-programmable FPGAs used where configuration data security, instant-on boot, and low static power matter more than reprogrammability.
Key features include 48K system gates with 1,800 register cells, 249 available user I/O in the 329-ball package, single 2.5V operation, and the SX-A family's inherently low static power consumption because no configuration bitstream SRAM is present. The BGA ball-grid package provides good signal integrity and thermal performance for high-I/O glue logic, bus bridging, and state machine integration.
The architecture is built around Actel's proven SX module: combination C-cells and register R-cells arranged in clusters, with segmented antifuse routing that delivers predictable, ASIC-like timing. The -2 speed grade represents the faster of the standard speed bins, supporting system clocks in the 200 MHz-class range per the SX-A family data.
Typical applications include aerospace and defense designs that value configuration security and SEU robustness, industrial control and bus-interface logic, telecom line-card glue logic, and single-chip integration of multiple discrete logic devices (SSI/MSI replacement) to cut board cost.
Design consideration: antifuse devices are one-time programmable - verify your design thoroughly in simulation before programming, and use Microchip's Libero/Designer software flow with the correct speed grade and temperature suffix.
This page synthesizes distributor availability, same-family drop-in part variants, and practical design notes not consolidated in the manufacturer datasheet, with pricing referenced as of 2026-09-03.
Drop-in alternatives for A54SX32A-2BGG329I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with A54SX32A-2BGG329I (same form factor and footprint) — differing in Package, System Gates, Process Technology, Family, Logic Cells.
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A54SX32A-2BGG329
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
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View Datasheet →A54SX32A-1BGG329I
✅ Drop-In ⚠️ Specs Unverified✓ In Stock
$57.8 / Unit
View Datasheet →A54SX32A-1BGG329
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$47.6 / Unit
View Datasheet →A54SX32-BGG329I
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View Datasheet →A54SX32-BGG329
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$515.58 / Unit
View Datasheet →A54SX32-2BGG329I
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$88.9 / Unit
View Datasheet →A54SX32A-2BGG329I Maximum Ratings & Electrical Characteristics
| Family | SX-A (antifuse FPGA) |
| System Gates | 48000 |
| Logic Cells | 1800 |
| User I/O | 249 |
| Speed Grade | -2 |
| Supply Voltage | 2.5 V |
| Process Technology | 0.25 um CMOS |
| Maximum Internal Frequency | Approx. 238 MHz |
| Program Technology | Antifuse (one-time programmable) |
| Package | 329-BBGA (BGG329) |
| Mounting Type | Surface Mount |
| Temperature Grade | I (Industrial, -40C to +85C) |
| Configuration Memory | Non-volatile (no external PROM required) |
| Design Software | Microchip Libero SoC / Actel Designer |
A54SX32A-2BGG329I 329-bbga (bgg329) Pin Configuration Guide
Pin configuration for A54SX32A-2BGG329I (329-bbga (bgg329) 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-2BGG329I.
Refer to the datasheet for full pin configuration.
Typical Applications
A54SX32A-2BGG329I is suitable for 6 applications: Aerospace and Defense Logic, Industrial Control and Automation, Telecom Line Cards, SSI/MSI Logic Integration, Secure Embedded Systems, Test and Measurement Equipment.
Aerospace and Defense Logic
The A54SX32A-2BGG329I fits aerospace and defense designs where configuration integrity is paramount. Its antifuse fabric is non-volatile and contains no SRAM configuration cells, eliminating the primary mechanism for configuration upset and removing the readable bitstream that SRAM FPGAs expose. With 48,000 gates, 1,800 register cells, and 249 user I/O in the 329-ball BGA, it integrates bus interfaces, custom protocols, and control state machines into one low-power 2.5V device. Used between a processor and backplane interfaces, it boots instantly with no configuration PROM, saving board space and startup time. Designers should validate timing at -40C to +85C industrial corners using Microchip Designer reports before programming, since the device is one-time programmable.
Recommended
Industrial Control and Automation
In industrial control systems, the A54SX32A-2BGG329I provides glue logic, I/O expansion, and deterministic sequencing with the industrial -40C to +85C temperature grade required on factory floors. The 2.5V single-supply operation and low static power of the antifuse architecture reduce overall system consumption compared to SRAM FPGAs that draw standby current for configuration. With 249 user I/O available in the 329-ball BGA, it can bridge parallel fieldbus interfaces, drive relay control logic, and implement safety interlock state machines in a single chip, replacing dozens of discrete 74-series devices. Because configuration is permanent, commissioning includes full timing verification at temperature extremes, after which behavior is fixed and immune to bitstream corruption from electrical noise.
Recommended
Telecom Line Cards
Telecom line cards benefit from the A54SX32A-2BGG329I's combination of high I/O count and predictable, ASIC-like timing from the segmented antifuse routing. The -2 speed grade supports system clock rates in the 200 MHz class per SX-A family data, sufficient for TDM framing, backplane handshaking, and counters. The 329-ball BGA package offers good signal integrity for high-pin-count bus interfaces and balanced thermal behavior on 2.5V supply. Because the device is instant-on, line cards can complete self-test immediately at power-up without waiting for configuration download from a PROM, reducing boot time. Designers typically pair it with line interface ICs and use the FPGA for channel aggregation, alarm logic, and LED/relay supervision across -40C to +85C operation.
Recommended
SSI/MSI Logic Integration
The A54SX32A-2BGG329I excels at consolidating many discrete SSI/MSI logic devices - counters, latches, decoders, comparators, and glue functions - into one antifuse FPGA. Microchip positions SX-A devices specifically for generating system-wide savings by integrating multiple functions into a low-cost single-chip solution. With 48K gates and 1,800 flip-flops, a board area populated by dozens of 74-series packages can collapse into a single 329-ball BGA, cutting BOM count, assembly cost, and failure points. Timing across integrated functions becomes deterministic since routing is fixed after programming. The trade-off is one-time programmability: logic changes require new devices, so design freeze should follow complete simulation. At 2.5V core supply, interface level shifting may be needed for legacy 5V or 3.3V signals.
Recommended
Secure Embedded Systems
Secure embedded systems use the A54SX32A-2BGG329I where design IP must be protected. Unlike SRAM FPGAs whose bitstream is stored externally and can be intercepted or cloned, the antifuse configuration exists only as physical connections inside the die, with no readable pattern available at the pins. Microchip highlights security as a core SX-A family benefit alongside performance and low power. The 48K-gate capacity accommodates encryption wrappers, authentication state machines, and anti-tamper supervision logic around a main processor. Instant-on behavior means security functions are active from the first clock, closing the boot-time vulnerability window that PROM-configured devices exhibit. For hostile environments, the industrial temperature grade and BGA mechanical robustness add reliability, and permanent configuration prevents field reprogramming attacks.
Recommended
Test and Measurement Equipment
Test and measurement instruments use the A54SX32A-2BGG329I for trigger logic, timing generation, and interface translation where deterministic timing matters. The antifuse routing yields consistent, fixed propagation delays after programming - valuable in trigger paths and precision timing chains where SRAM FPGA re-route variance is undesirable. The -2 speed grade and 238 MHz-class internal performance support high-resolution counter and event-timestamp functions, while 249 user I/O connect to front-end ADCs, display drivers, and communication ports. Instant-on configuration lets instruments reach operational state immediately at power-up. The industrial temperature grade suits bench and field instruments alike. Because the design is one-time programmable, instrument firmware changes require new devices, so validation discipline is essential before production programming.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32A-2BGG329I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32A-2BGG329 | A54SX32A-1BGG329I | A54SX32-BGG329I | A54SX32-2BGG329I |
|---|---|---|---|---|---|
| Package | 329-BBGA (BGG329) | 329-BBGA - same | 329-BBGA - same | 329-BBGA - same | 329-BBGA - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 48000 | 48000 | 48000 | 48000 (32000 gates per SX naming) | 48000 (32000 gates per SX naming) |
| Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| User I/O | 249 | 249 | 249 | 249 | 249 |
| Temperature Grade | Industrial (-40C to +85C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Process Technology | 0.25 um CMOS | 0.25 um CMOS | 0.25 um CMOS | 0.35 um CMOS | 0.35 um CMOS |
Key Differentiators
- Fastest standard speed grade in the SX32A family (vs A54SX32A-1BGG329I)
- Newer 0.25 um, 2.5V process generation (vs A54SX32-2BGG329I)
- Industrial temperature grade for extended environments (vs A54SX32A-2BGG329)
Design Notes
The A54SX32A-2BGG329I is a one-time-programmable antifuse FPGA. Unlike SRAM FPGAs, you cannot reprogram it after a design change - every logic revision consumes a new device. Complete HDL simulation, timing simulation at all temperature and voltage corners, and a formal design review before submitting the device to programming. Budget programming yield and spare units into your production plan. Verify the exact ordering code (-2 speed grade, I temperature grade, BGG329 package) when releasing the design to manufacturing, since wrong-suffix parts are not field-upgradeable.
The SX-A family operates from a single 2.5V core supply. Because there is no SRAM configuration array, static (standby) power is inherently low, but dynamic power scales with clock frequency and switching activity - estimate it in Microchip Designer's power calculator for your specific design at the 238 MHz-class internal frequencies. Decouple the 2.5V rail with a network of bulk and 0.1 uF ceramic capacitors placed at the BGA power balls. Note that core I/O signaling is 2.5V-class; level-shift any 3.3V or 5V legacy interfaces rather than relying on pin tolerance.
The 329-ball BGA requires careful footprint and stack-up design. Follow the package mechanical drawing from the SX-A datasheet for ball pitch and land pattern dimensions, and include the A1 corner marker for orientation. Use via-in-pad or dogbone fanout with adequate via annular ring for the fine-pitch array, and route high-speed buses with controlled impedance if timing margins are tight. Provide generous ground return paths under the BGA. Before layout freeze, download the current package drawing from the Microchip A54SX32A product page rather than copying footprints from older boards.
Compliance Information
Compliance data not present in the provided web results. Confirm RoHS/REACH status on the Microchip A54SX32A product page or via distributor compliance documentation before procurement.
