A54SX32A-BG329I

The A54SX32A-BG329I is a member of the SX-A family of nonvolatile, single‑chip FPGAs from Microchip Technology. It delivers a combination of deterministic timing, mixed‑voltage I/O flexibility and on‑chip logic density designed for industrial applications.

This device provides 48,000 system gates implemented across 2,880 logic elements, 249 user I/Os, and a wide supply range (2.25 V to 5.25 V). Family-level performance characteristics include up to 250 MHz system performance and up to 350 MHz internal performance.

Key Features

• Core & Performance  SX-A family performance: 250 MHz system performance and up to 350 MHz internal performance for demanding logic and timing needs.
• Logic Resources  48,000 system gates delivered through 2,880 logic elements and up to 1,800 dedicated flip‑flops (family device allocations shown in datasheet).
• I/O & Interfaces  249 user‑programmable I/Os with configurable support for mixed I/O standards; family supports 3.3 V/5 V PCI, 5 V TTL, 3.3 V LVTTL and 2.5 V LVCMOS2 signaling and 5 V input tolerance.
• Power & Mixed‑Voltage Operation  Supported supply range 2.25 V to 5.25 V and mixed 2.5 V, 3.3 V and 5 V operation with 5 V drive strength where applicable, simplifying interfaces to legacy and modern peripherals.
• Package & Industrial Grade  Surface‑mount 329‑BBGA (329‑PBGA 31×31) package and industrial temperature grade (−40 °C to 85 °C) for robust deployment in industrial environments.
• System Reliability & Boot  Nonvolatile, single‑chip configuration removes the need for external configuration memory and supports power‑up/power‑down friendly operation without supply sequencing.
• I/O Robustness  Hot‑swap compliant I/Os and configurable weak pull‑ups/pull‑downs on power‑up; individual output slew rate control for signal integrity management.
• Diagnostics & Test  In‑system diagnostic capability (Silicon Explorer II) and IEEE 1149.1 JTAG boundary‑scan testing for board‑level validation and field diagnostics.
• Security  Actel Secure Programming Technology with FuseLock™ to protect intellectual property and prevent reverse engineering.
• Compliance  RoHS compliant packaging.

Typical Applications

• PCI and legacy bus interfaces  Use the device's 66 MHz PCI compliance and mixed‑voltage I/O support to implement PCI endpoints, glue logic, or bridge functions.
• Industrial control and automation  Industrial temperature rating (−40 °C to 85 °C), hot‑swap I/O capability and a high I/O count make it suitable for motor control, I/O aggregation and machine‑control fabrics.
• Mixed‑voltage system glue logic  Ideal for designs that must interface between 5 V legacy components and 3.3 V/2.5 V modern devices, reducing external level‑shifting components.
• Field‑upgradable/secure systems  Nonvolatile on‑chip configuration plus FuseLock™ security and in‑system diagnostics support secure, serviceable products with protected firmware.

Unique Advantages

• Deterministic, controllable timing: Family features provide deterministic timing control for predictable system behavior and timing closure.
• Nonvolatile single‑chip solution: Eliminates external configuration memory, reducing BOM and simplifying board layout.
• Wide supply and mixed‑voltage I/O: 2.25 V to 5.25 V supply range and family support for multiple I/O standards simplify integration with diverse peripherals.
• High I/O density: 249 user I/Os provide extensive connectivity for sensors, buses and peripheral interfaces without external multiplexing.
• Industrial readiness: Surface‑mount 329‑BBGA package and −40 °C to 85 °C operating range support deployment in industrial environments.
• Built‑in security and diagnostics: FuseLock™ protection and Silicon Explorer II diagnostics help safeguard IP and speed fault isolation during development and in the field.

Why Choose A54SX32A-BG329I?

The A54SX32A-BG329I combines the SX-A family’s nonvolatile single‑chip architecture with a substantial logic footprint (48,000 system gates, 2,880 logic elements) and a high I/O count (249). Its mixed‑voltage support, hot‑swap I/Os and deterministic timing features make it suited for industrial and mixed‑signal systems that require reliable interfacing and predictable timing.

Backed by family-level diagnostics, JTAG boundary‑scan, and on‑chip security, this device is a strong fit for designs that prioritize integration, hardware-level IP protection and long‑term field serviceability while maintaining compact BOM and board space.

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