A54SX32A-1BGG329 - 48K-Gate SX-A FPGA 329-BGA | Microchip
MPN: A54SX32A-1BGG329 ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $68.5 | $68.50 |
| 10 | $63.2 | $632.00 |
| 100 | $57.8 | $5,780.00 |
| 500 | $52.1 | $26,050.00 |
| 1,000 | $47.6 | $47,600.00 |
A54SX32A-1BGG329 Overview
An antifuse FPGA is a type of field-programmable gate array in which the interconnect configuration is permanently set at power-up programming via antifuse elements. Unlike SRAM-based FPGAs, antifuse devices are non-volatile and configuration is stored in the silicon itself, providing inherent security advantages and eliminating the need for external configuration memory. Within the programmable logic hierarchy, the SX-A family sits in the one-time-programmable (OTP) FPGA class, part of the broader FPGA -> programmable logic -> semiconductor device taxonomy.
Key differentiating specifications include the 48K system gate count, 278 MHz system performance (speed grade -1), 249 available user I/O, and low static power consumption enabled by the antifuse architecture. The sea-of-modules architecture simplifies design migration and supports high-density integration of multiple functions into a single low-cost chip.
Technically, the SX-A architecture uses a sea-of-modules structure built on the 0.25 um antifuse CMOS process, with clustered logic modules and a segmented routing fabric that yields deterministic, pin-to-pin timing. Because configuration is hard-wired, there is no configuration bitstream to intercept, making the device attractive for designs where bitstream security matters. The 329-ball BGA with 1.27 mm pitch provides reliable surface-mount assembly on standard PCB processes.
Typical applications include industrial control systems, communications and networking line cards, aerospace and defense logic consolidation, and test-and-measurement equipment, where the combination of one-time programmability, security, and low power is valued.
A key design consideration is that antifuse FPGAs are one-time programmable: prototype thoroughly in simulation and, if necessary, on lower-cost family members before committing programming on production devices.
This page synthesizes distributor availability data, verified drop-in alternatives within the SX-A and SX families, and practical design notes not found in the manufacturer datasheet, providing engineers a complete sourcing and engineering reference for the A54SX32A-1BGG329.
Drop-in alternatives for A54SX32A-1BGG329 — 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-1BGG329 (same form factor and footprint) — differing in Package, Process Technology, Family, System Gates, Maximum Clock Frequency.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
A54SX32A-1BGG329I
✅ Drop-In✓ In Stock
$57.8 / Unit
View Datasheet →A54SX32A-2BGG329I
✅ Drop-In✓ In Stock
$95 / Unit
View Datasheet →A54SX32A-BGG329
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX32A-BG329I
✅ Drop-In📋 Reference alternative (not in catalog)
A54SX32-2BGG329I
✅ Drop-In✓ In Stock
$88.9 / Unit
View Datasheet →A54SX32A-1BGG329 Maximum Ratings & Electrical Characteristics
| Family | SX-A |
| System Gates | 48000 gates |
| Logic Modules / Cells | 2880 |
| User I/O | 249 |
| Maximum System Frequency | 278 MHz |
| Speed Grade | -1 |
| Process Technology | 0.25 um CMOS |
| Core Supply Voltage | 2.5 V |
| Programming Technology | Antifuse (one-time programmable) |
| Package | PBGA329 (329-BBGA), 1.27 mm pitch |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Architecture | Sea-of-modules |
| Configuration Memory | Non-volatile (internal antifuse) |
A54SX32A-1BGG329 pbga329 (329-bbga), 1.27 mm pitch Pin Configuration Guide
Pin configuration for A54SX32A-1BGG329 (pbga329 (329-bbga), 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 A54SX32A-1BGG329.
Refer to the datasheet for full pin configuration.
Typical Applications
A54SX32A-1BGG329 is suitable for 6 applications: Industrial Control and Automation, Communications and Networking Line Cards, Aerospace and Defense Logic Consolidation, Test and Measurement Equipment, Logic Consolidation / Single-Chip Cost Reduction, Secure / Anti-Tamper System Control.
Industrial Control and Automation
The A54SX32A-1BGG329 fits industrial control systems that require deterministic, instant-on logic at power-up. Because its antifuse configuration is non-volatile and internal, the FPGA begins operating within microseconds of power application with no configuration load time - a measurable benefit over SRAM FPGAs that need 50-500 ms of bitstream loading. The 48K-gate capacity and 249 user I/O at 2.5V core support motor sequencing, sensor interfacing, and backplane glue logic on a single chip. Its one-time programmable fabric also resists accidental or malicious reconfiguration on the factory floor. Place decoupling per Microchip SX-A power guidelines, and budget I/O banks for 3.3V-tolerant industrial signaling standards.
Recommended
Communications and Networking Line Cards
In networking and telecom line cards, the A54SX32A-1BGG329 integrates glue logic, bus bridging, and framing functions that would otherwise occupy multiple ASSPs. The 278 MHz system performance at the -1 speed grade supports timing-critical parallel interfaces, while the sea-of-modules routing fabric delivers deterministic delays useful for meeting fixed-latency budgets. Antifuse non-volatility means line cards are operational immediately at insertion, simplifying hot-swap sequencing design. The 329-ball BGA with 1.27 mm pitch assembles reliably on standard telecom PCB processes. Designers should verify I/O standards (single-ended) against backplane signaling and allocate the 249 I/O across banks according to the SX-A datasheet electrical rules.
Recommended
Aerospace and Defense Logic Consolidation
Antifuse FPGAs like the A54SX32A-1BGG329 are historically preferred in aerospace and defense because configuration data resides permanently in silicon, eliminating bitstream interception and readback risk. The device consolidates discrete logic into one 48K-gate chip, reducing parts count, board area, and power in avionics subsystems. Its 2.5V core with single-ended I/O suits legacy defense platforms still running 3.3V/5V signaling with appropriate level planning. One-time programmability enforces configuration control, valuable in programs requiring frozen, auditable designs. Select the -1I industrial-temperature variant (A54SX32A-1BGG329I) where extended temperature is required, and confirm program-specific screening with Microchip early in the design cycle.
Recommended
Test and Measurement Equipment
Test instruments benefit from the A54SX32A-1BGG329 as a timing-controller and instrument-bus interface device. The deterministic antifuse routing yields repeatable pin-to-pin delays between units, important for calibration consistency across a production run of instruments. The 278 MHz (-1 grade) capability covers counter, trigger, and state-machine functions, while 249 I/O connects front-panel controls, ADC/DAC interfaces, and backplane buses. Because configuration is internal and non-volatile, instruments power up ready without configuration controllers, improving mean time to ready. Designers should simulate critical timing with Microchip Libero/Designer timing models and reserve I/O for future diagnostics on the 329-ball BGA footprint.
Recommended
Logic Consolidation / Single-Chip Cost Reduction
Microchip positions the SX-A family explicitly for system-wide savings by integrating multiple functions into a low-cost, single-chip solution. The A54SX32A-1BGG329 replaces TTL/PLD clusters - address decoders, bus transceivers, sequencers - collapsing them into 48K gates in one 329-ball BGA. This reduces BOM line items, board rework risk, and standby power, since antifuse FPGAs draw negligible static configuration current compared with SRAM FPGAs holding equivalent logic. Migration across the SX-A family (16A/32A/72A) in matching packages enables gate-count growth without redesign. For cost-optimized builds, evaluate the smaller A54SX16A-PQG208M for the same logic before committing to the 32A density.
Recommended
Secure / Anti-Tamper System Control
Systems with configuration-security requirements use the A54SX32A-1BGG329 as a secure boot controller or glue-logic gatekeeper. Because antifuse configuration cannot be read back and requires no external configuration flash, there is no bitstream on the bus for an attacker to capture - a concrete advantage over SRAM FPGAs, which must reload an exposed bitstream at every power cycle. The device's instant-on behavior lets it enforce power-rail sequencing or interlock logic before a host processor begins executing. The 249 I/O support board-level status, tamper-switch, and enable-signal fanout. Combine with a supervisor device and verify the non-volatile, one-time-programmable workflow fits your program's change-control process.
Recommended
Recommended Products Summary
Engineering reference data for A54SX32A-1BGG329 — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | A54SX32A-1BGG329I | A54SX32A-2BGG329I | A54SX32A-BGG329 | A54SX32-2BGG329I |
|---|---|---|---|---|---|
| Package | PBGA329 (329-BBGA), 1.27 mm pitch | PBGA329 - same | PBGA329 - same | PBGA329 - same | PBGA329 - same |
| Brand | Microchip Technology (Microsemi/Actel) | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology (Microsemi) |
| System Gates | 48000 | 48000 | 48000 | 48000 | 32000 |
| Max System Frequency | 278 MHz | 278 MHz | >278 MHz (-2 speed grade) | 278 MHz (family max) | 240 MHz |
| Core Supply Voltage | 2.5 V | 2.5 V | 2.5 V | 2.5 V | 3.3 V / 5 V |
| Process Technology | 0.25 um CMOS | 0.25 um CMOS | 0.25 um CMOS | 0.25 um CMOS | 0.35 um CMOS |
| Temperature Grade | Commercial (-1) | Industrial (-1I) | Industrial (-2I) | Commercial | Industrial |
| Programming Technology | Antifuse (OTP, non-volatile) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) | Antifuse (OTP) |
Key Differentiators
- Configuration security with no external bitstream (vs SRAM-based FPGAs)
- Faster speed grade option on identical footprint (vs A54SX32A-1BGG329I)
- Lower power on newer process node (vs A54SX32-2BGG329I)
Design Notes
The A54SX32A-1BGG329 operates from a 2.5V core supply per the SX-A family datasheet. Antifuse FPGAs draw negligible static configuration current because no bitstream storage or loading is required, but I/O dynamic current depends on toggle rates and output loading across the 249 user I/O. Provide dedicated 2.5V and I/O-bank rails with bulk plus 0.1 uF ceramic decoupling at each supply ball group, and follow the SX-A family power calculation method in the manufacturer datasheet to size regulators for worst-case activity factors.
This is a one-time-programmable antifuse device: a programmed part can never be erased or reprogrammed. Complete full functional simulation, timing closure with the -1 speed grade models, and a pilot run on a lower-cost family member (e.g., A54SX16A or a PQG208 variant) before programming production devices. Ordering the wrong speed grade or temperature suffix (standard -1 versus -1I) is a frequent and costly procurement error; verify the exact MPN against your validated timing report before release.
The PBGA329 uses a 1.27 mm ball pitch, which is routable on standard 0.15 mm line/space PCB processes with dog-bore via fanout. Define the land pattern per the mechanical drawing in the SX-A family datasheet, use non-solder-mask-defined pads, and verify the 329-ball array footprint against your CAD library before fab release. For replacement planning, note that all SX-A BGG329 variants share the identical ball map, so second-sourcing within the family requires no PCB change.
Compliance Information
FindIC specification data explicitly describes the PBGA329 package as ROHS COMPLIANT PLASTIC BGA-329. Other compliance attributes not stated in provided data.
