A54SX32A-BGG329I - 32K Gate Antifuse FPGA 329-BGA | Microchip
MPN: A54SX32A-BGG329I ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1 | $1.00 |
| 10 | $1 | $10.00 |
| 100 | $1 | $100.00 |
| 500 | $1 | $500.00 |
| 1,000 | $1 | $1,000.00 |
Drop-in alternatives for A54SX32A-BGG329I — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX32A-1BGG329I
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View Datasheet →A54SX32A-2BGG329I
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View Datasheet →A54SX32A-BGG329M
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View Datasheet →A54SX32A-1BGG329M
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$82 / Unit
View Datasheet →A54SX32A-2BGG329
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View Datasheet →A54SX32A-1BGG329
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View Datasheet →A54SX32A-FBGG329
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View Datasheet →A54SX32A-BGG329I Maximum Ratings & Electrical Characteristics
| Family | SX-A (Antifuse FPGA) |
| System Gates | 32000 gates (Mouser lists 48K system gates for SXA family) |
| Logic Cells / Modules | 1800 cells |
| Number of I/O | 249 |
| Maximum System Frequency | 238 MHz |
| Process Technology | 0.25 um CMOS antifuse |
| Core Supply Voltage | 2.5 V |
| I/O Voltage Support | 2.5 V, 3.3 V, 5 V |
| Configuration Type | Antifuse (one-time programmable, non-volatile) |
| Package | 329-BBGA (BGG329) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (I grade) |
| Speed Grade | Standard (-BGG329I) |
| Programming Method | Antifuse programmer (one-time) |
| Architecture | Sea-of-modules, fine-grained |
A54SX32A-BGG329I 329-bbga (bgg329) Pin Configuration Guide
Complete pinout information for A54SX32A-BGG329I (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-BGG329I.
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-BGG329I is suitable for 6 applications: Industrial Control Logic Consolidation, Aerospace and Defense Legacy Sustainment, Telecom Line-Card Control and Bridge Logic, Test and Measurement Equipment, Secure Embedded Controllers, Obsolescence-Driven Redesign of Legacy SX Designs.
Industrial Control Logic Consolidation
The A54SX32A-BGG329I consolidates discrete PLD, glue logic, and bus-interface functions into one 32K-gate antifuse chip, reducing board area and BOM count in PLC modules and motor-control backplanes. Its 249 user I/O with 5 V tolerant capability interfaces directly with legacy 5 V industrial signaling (TTL-level sensors, optocoupler outputs) without level shifters, while the 238 MHz performance ceiling comfortably covers PCI-class local buses and high-speed state machines. Because the antifuse configuration is non-volatile and immune to configuration upset from industrial electrical noise, the FPGA is operational within microseconds of power application - critical for safety interlock logic that must be valid at power-up. Place it between the backplane connector and local microcontroller, with I/O banks powered at the bus voltage and the 2.5 V core fed from a local buck regulator.
Recommended
Aerospace and Defense Legacy Sustainment
Aerospace line-replaceable units designed in the 2000s frequently specified Actel SX-A antifuse FPGAs, and the A54SX32A-BGG329I remains a primary sustainment part. Its instant-on, one-time-programmable configuration eliminates configuration-storage failure modes and configuration-reading attack surfaces valued in defense platforms, and deterministic interconnect delays simplify DO-254-style timing analysis on moderately complex control logic. With the industrial I grade covering -40C to +85C and a stable, decades-long Microchip lifecycle, the part supports obsolescence-mitigation buys. Designers should lock the programming file revision, verify leaded versus lead-free ball metallurgy against the platform solder process, and treat any radiation requirement assessment separately, since this is a COTS device rather than a radiation-hardened RTAX part.
Recommended
Telecom Line-Card Control and Bridge Logic
In telecom line cards and network shelves, the A54SX32A-BGG329I serves as a single-chip bridge between system backplanes and card-level PHYs, replacing multiple CPLDs and discrete buffers. Its multi-voltage I/O (2.5 V, 3.3 V, and 5 V signaling) matches the mixed-voltage legacy of telecom racks, allowing direct connection to both 3.3 V transceivers and 5 V alarm inputs. The 238 MHz system performance covers TDM backplane interfaces and local bus arbitration, while low static antifuse power keeps card idle current within shelf power budgets - an advantage over SRAM FPGAs that draw configuration-retention current. Hot-board insertion sequencing should be analyzed against the 2.5 V core supply ramp, and I/O bank assignment should group same-voltage signals to minimize level-shifting components around the 249-ball perimeter.
Recommended
Test and Measurement Equipment
Bench instruments and automated test equipment use the A54SX32A-BGG329I as a deterministic timing sequencer, trigger logic engine, and pattern generator. The fine-grained sea-of-modules architecture gives predictable interconnect delays, which matters for sub-10 ns trigger paths where SRAM FPGA routing variance complicates calibration. Its instant-on behavior means the instrument logic is live before the operator completes front-panel setup, and the one-time-programmable antifuse prevents accidental or malicious reconfiguration of calibration-critical logic in fielded units. With 249 I/O, the device can directly drive pin-electronics heads and relay-control banks, while 5 V tolerant banks interface with legacy instrumentation buses. Keep high-fanout clock nets on dedicated routing per Microchip's timing guidelines and simulate signal integrity for BGA escape patterns above 100 MHz toggle rates.
Recommended
Secure Embedded Controllers
The A54SX32A-BGG329I fits secure embedded controllers where the design must resist configuration extraction. Antifuse programming physically burns interconnect links, so no bitstream exists in the system to read back, unlike SRAM FPGAs whose configuration flash can be cloned or tampered with. The device implements secure boot-glue, authentication state machines, and access-control logic for industrial and infrastructure controllers. Because configuration is permanent, teams should treat programming as a controlled manufacturing step with golden programming files and verified programmer settings, and budget spare programmed spares for field service. The industrial temperature grade supports uncontrolled environments, and the absence of a configuration device removes an entire failure and attack class from the FMEA. Combine with a microcontroller such as a PIC32 for command processing while the FPGA enforces hard-wired policy.
Recommended
Obsolescence-Driven Redesign of Legacy SX Designs
Boards originally built around the non-A A54SX32 in BG329 packaging can migrate to the A54SX32A-BGG329I with minimal engineering effort: the SX-A family is the direct enhancement of the SX family, and Microchip maintains design-tool support for migrating SX projects to SX-A. The 0.25 um process raises performance to 238 MHz, reduces power, and lowers cost, while preserving the architectural model and library familiarity. Engineers should re-run timing with SX-A library delays, verify the ball map against the new footprint since BG329 and BGG329 ball assignments differ, and validate I/O standards where the original design used 5 V TTL at the perimeter. This application suits long-lifecycle industrial, medical, and transportation equipment where a full FPGA redesign is unjustified but the silicon source is aging.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32A-BGG329I — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32A-1BGG329I | A54SX32A-2BGG329I | A54SX32A-BGG329M | A54SX32A-1BGG329M | A54SX32A-2BGG329 |
|---|---|---|---|---|---|---|
| Package | 329-BBGA (BGG329) | 329-BBGA - same | 329-BBGA - same | 329-BBGA - same | 329-BBGA - same | 329-BBGA - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 32K | 32K | 32K | 32K | 32K | 32K |
| User I/O | 249 | 249 | 249 | 249 | 249 | 249 |
| Speed Grade | Standard | -1 (faster) | -2 (fastest) | Standard | -1 | -2 |
| Temperature Grade | Industrial (I, -40C to +85C) | Industrial (I) | Industrial (I) | Commercial (M) | Commercial (M) | Commercial (M) |
| Core Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 2.5 V |
| Configuration Type | Antifuse (one-time programmable) | Antifuse | Antifuse | Antifuse | Antifuse | Antifuse |
Key Differentiators
- Industrial temperature range at standard speed grade (vs A54SX32A-BGG329M)
- Fastest available timing on the same footprint (vs A54SX32A-2BGG329I)
- No cross-brand drop-in exists (vs Xilinx / Intel SRAM FPGAs)
Design Notes
Supply the 2.5 V core rail with a clean local regulator and decouple at the BGA power balls with an array of 0.1 uF ceramics plus at least one bulk 10 uF capacitor. Antifuse FPGAs have low static current, but dynamic ICC scales with toggle rate, so size the core regulator using the SX-A datasheet ICC-versus-frequency curves rather than the static figure. Assign I/O bank voltages (2.5 V, 3.3 V, or 5 V) in the design software before layout so bank supply balls match the signaling plan.
For the 329-ball BGA, plan fan-out early: use 0.8 mm pitch dog-bone escapes with via-in-pad only if your stackup supports it. Follow the ball map from the SX-A datasheet package chapter and reserve access to configuration-test and programming-related balls if the board will be programmed in-circuit. This page does not reproduce the full ball map; download the official datasheet and import the vendor symbol into your CAD tool to avoid footprint errors.
Antifuse devices are one-time programmable: a bad programming run wastes the device. Freeze the design revision, use the verified Microchip programmer settings, and program golden files in production rather than engineering files. Also note that the standard speed grade may fail static timing on designs written for -1 or -2 parts; when substituting a faster grade into an existing board this is safe electrically, but never assume the reverse substitution.
Compliance Information
Compliance data was not present in the captured web data. This generation of BGA parts exists in both SnPb and lead-free ball variants - verify the exact ordering code on the Microchip product page Environmental section before purchase.
