A54SX32-1BG329 - SX FPGA 48K Gates 329-BGA | Microchip
MPN: A54SX32-1BG329 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $730.66 | $730.66 |
| 10 | $694.13 | $6,941.30 |
| 100 | $657.59 | $65,759.00 |
| 500 | $621.06 | $310,530.00 |
| 1,000 | $584.53 | $584,530.00 |
Drop-in alternatives for A54SX32-1BG329 — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
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A54SX32-1BG329I
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$628.26 / Unit
View Datasheet →A54SX32-2BG329
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$46.3 / Unit
View Datasheet →A54SX32-2BG329I
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View Datasheet →A54SX32-BG329I
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$560 / Unit
View Datasheet →A54SX32-1BGG329
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$544.99 / Unit
View Datasheet →A54SX32-2BGG329
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View Datasheet →A54SX32-1BG329 Maximum Ratings & Electrical Characteristics
| Family | SX (Actel antifuse FPGA) |
| System Gates | 48K (32K gates) |
| Logic Cells | 1800 |
| User I/O | 249 |
| Maximum System Performance | 280 MHz |
| Process Technology | 0.35 um CMOS |
| Supply Voltage | 3.3 V / 5 V |
| Programming Technology | Antifuse (one-time programmable) |
| Package | 329-BBGA (PBGA329, 1.27 mm ball pitch) |
| Mounting Type | Surface Mount |
| Speed Grade | -1 |
| Configuration | Non-volatile, no external boot device required |
| Architecture | Sea-of-modules |
| Manufacturer Status | Active (legacy SX family) |
A54SX32-1BG329 329-bbga (pbga329, 1.27 mm ball pitch) Pin Configuration Guide
Complete pinout information for A54SX32-1BG329 (329-bbga (pbga329, 1.27 mm ball 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 A54SX32-1BG329.
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
A54SX32-1BG329 is suitable for 6 applications: Industrial Control and Automation, Communications and Networking Line Cards, Test and Measurement Instrumentation, Aerospace and Defense Sub-Systems, Legacy Bus Bridging and Glue Logic Consolidation, Medical Diagnostic Equipment.
Industrial Control and Automation
The A54SX32-1BG329 suits industrial control backplanes where deterministic, instant-on logic replaces multiple discrete PLDs. Its 249 user I/Os allow glueless interfacing to parallel fieldbus, backplane, and I/O-module interfaces, while the antifuse fabric powers up fully configured within microseconds - critical for safety interlocks that must be active before a soft CPU boots. The 3.3V/5V supply flexibility lets it bridge legacy 5V TTL sensor lines directly to 3.3V controller domains without level shifters, saving board area. Because the SX fabric delivers gate-array-like 280 MHz-class timing, deterministic state machines and counters close timing without pipeline latency. Design with industrial-grade A54SX32-1BG329I where ambient exceeds commercial limits.
Recommended
Communications and Networking Line Cards
Telecom line cards of the SX generation used SX32 devices as backplane bus interfaces, framing logic, and glue logic between PHYs and framer ASICs. The A54SX32-1BG329's 329-ball BGA provides dense I/O for byte-wide backplane buses, and its sea-of-modules architecture closes timing on wide counters and state machines at the family's 280 MHz benchmark. Because antifuse configuration is fixed at power-up, the device imposes no configuration latency or configuration-corruption risk on long-uptime telecom equipment. Pair with 3.3V transceivers and use the 5V-tolerant supply flexibility where legacy 5V backplanes are present. For faster classes of traffic, migrate logic to the -2 speed-grade A54SX32-2BG329 drop-in variant for additional timing margin.
Recommended
Test and Measurement Instrumentation
Bench instruments require deterministic timing, abundant I/O for front-panel and trigger distribution, and instant readiness at power-on. The A54SX32-1BG329 delivers 249 I/Os in one 329-ball BGA, letting designers terminate trigger busses, drive display interfaces, and sequence acquisition state machines in a single programmable device. The antifuse fabric's fixed interconnect provides repeatable timing from unit to unit - an advantage for calibration stability compared with SRAM FPGA routing variation. Supplying the device from 3.3V with 5V-tolerant interfacing simplifies mixed-era analog front-end integration. Use the -2 speed grade variant if acquisition counters must exceed base timing headroom in high sample-rate designs.
Recommended
Aerospace and Defense Sub-Systems
The SX architecture's one-time-programmable antifuse fabric is inherently resistant to configuration upsets, which is why Actel extended this architecture into the radiation-tolerant RTAX family (RTAX1000SL, RTAX2000S, RTAX250S). In benign-environment defense electronics - ground equipment, test benches, telemetry ground stations - the commercial/industrial A54SX32-1BG329 provides the same non-volatile, single-chip configuration without external boot flash that could be a single-point failure. Designers prototyping RTAX-based space designs frequently use SX32 devices for functional verification because the fabric methodology is the same. For actual flight programs, select the qualified RTAX derivative rather than the commercial SX part.
Recommended
Legacy Bus Bridging and Glue Logic Consolidation
The A54SX32-1BG329 consolidates dozens of 74-series devices, PALs, and CPLDs into one antifuse FPGA, a common retrofit on legacy systems whose original ASSPs are obsolete. With 48K system gates and 249 I/Os, typical bridges include ISA/VME/PCI-era bus interfaces, memory controllers, and interrupt/DMA sequencers. The 5V-capable supply and 5V-tolerant I/Os interface directly with legacy TTL bus signaling, eliminating bus-switch glue. Because configuration is non-volatile, retrofitted boards behave identically to the original mask-based logic at power-up with no boot sequence. Consolidation also reduces NMI (no-mask-needed) costs versus a gate-array resporifice for low-volume legacy sustainment programs.
Recommended
Medical Diagnostic Equipment
Medical imaging and diagnostic systems in the SX era used SX32-class FPGAs for detector-interface sequencing, data buffering, and communication glue. The A54SX32-1BG329's deterministic, non-volatile fabric supports safety-relevant startup behavior: acquisition logic is live the instant power is applied, without depending on a configuration flash read. The 249 I/Os terminate multi-channel detector arrays, and the 3.3V/5V supply flexibility integrates with mixed-era analog front ends. Its fixed routing yields unit-to-unit timing repeatability that simplifies system calibration and regulatory test reproducibility. For hospital-environment temperature ranges, select the industrial A54SX32-1BG329I variant as a drop-in.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32-1BG329 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32-1BG329I | A54SX32-2BG329 | A54SX32-2BG329I | A54SX32-BG329I | A54SX32-1BGG329 |
|---|---|---|---|---|---|---|
| Package | 329-BBGA | 329-BBGA - same | 329-BBGA - same | 329-BBGA - same | 329-BBGA - same | 329-BBGA - same |
| Brand | Microchip Technology (Actel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| System Gates | 48K (32K gates) | 48K (32K gates) | 48K (32K gates) | 48K (32K gates) | 48K (32K gates) | 48K (32K gates) |
| Speed Grade | -1 | -1 | -2 (faster) | -2 (faster) | Standard | -1 |
| User I/O | 249 | 249 | 249 | 249 | 249 | 249 |
| Supply Voltage | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V | 3.3 V / 5 V |
| Temperature Range | Commercial | Industrial | Commercial | Industrial | Industrial | Commercial |
| Programming Technology | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
Key Differentiators
- Non-volatile instant-on configuration (vs Xilinx Virtex / Altera Stratix SRAM FPGAs (functional class))
- Industrial-temperature pin-compatible upgrade path (vs A54SX32-1BG329I)
- Speed-grade headroom without PCB change (vs A54SX32-2BG329)
- Trade-off: no in-field reprogrammability (vs A54SX32-1BG329 (inherent limitation vs SRAM FPGA families))
Design Notes
Antifuse FPGAs are one-time-programmable: a programming error destroys the device. Budget engineering-sample units and run complete post-layout simulation before programming production parts. Never treat the BG329 device as reworkable; there is no reconfiguration or field update path. Keep the programming-file (designer-generated fuse file) under configuration control with checksums so production programming is repeatable across lots and years - critical for legacy sustainment programs that must rebuild identical boards a decade later.
The A54SX32-1BG329 operates from 3.3V with 5V-capable supply interfacing; decouple both supply domains with bulk 10 uF tantalum plus 0.1 uF ceramic per supply ball group. SX-family antifuse devices draw negligible static configuration current compared with SRAM FPGAs, but dynamic current scales with toggle rate and I/O loading - estimate with the Actel/Microchip power calculator using actual place-and-route netlists rather than gate-count rules of thumb. Verify total I/O simultaneous-switching current against package ground-ball allocation in the datasheet electrical tables.
The 329-ball PBGA with 1.27 mm pitch fans out comfortably on 0.15 mm trace/0.15 mm space with dog-bone vias; avoid blind vias to control cost. Follow JEDEC-recommended BGA land pattern and inspect solder joints with X-ray after reflow since balls are hidden. No external configuration flash, pull-up, or JTAG chain resistor network is required for configuration, simplifying layout - reserve board space only for the programming access pad pattern used during production antifuse programming if your programming fixture requires socket access.
With 249 I/Os available, simultaneous switching output (SSO) noise is the dominant signal-integrity risk. Group switching outputs near allocated ground balls, limit the number of outputs switching in the same 1 ns window per ground/power ball pair, and use the SX family's slew-controlled output options on bus interfaces. For legacy 5V TTL bus signals, verify the datasheet I/V drive curves at the far-end load rather than assuming 74-series-equivalent drive, and add series termination of 22-33 ohms on stub-rich backplane nets.
Compliance Information
Compliance data was not present in the verified web data for A54SX32-1BG329. The related G-suffix variant (e.g., A54SX32-1BGG329) is referenced in distributor data as a lead-free/green option; choose that variant when RoHS/lead-free compliance is required, and confirm on the Microchip product page.
