A54SX32A-FG256

The A54SX32A-FG256 is a member of the SX-A family of nonvolatile FPGAs from Microchip Technology. It delivers a 48,000-system-gate capacity implemented as approximately 2,880 logic elements with 203 user I/Os in a 256-ball fine-pitch BGA package.

Built for designs that require deterministic timing, mixed-voltage I/O support and a single-chip nonvolatile FPGA, this device targets applications that benefit from in-system programmability, hot-swap capable I/Os and robust power-up/down behavior.

Key Features

• Core Performance — Leading-edge family performance with 250 MHz system performance and 350 MHz internal performance as defined for the SX-A family.
• Capacity — 48,000 system gates and approximately 2,880 logic elements provide substantial programmable logic resources for glue logic, custom peripherals and control functions.
• I/O and Voltage Flexibility — 203 user-programmable I/Os with configurable I/O support for 3.3 V / 5 V PCI, 5 V TTL, 3.3 V LVTTL and 2.5 V LVCMOS2; supports mixed-voltage operation with 5 V input tolerance and 5 V drive strength.
• Nonvolatile Single-Chip Solution — In-system programmable, nonvolatile architecture simplifies configuration management and eliminates external configuration memory.
• Power and Reliability — Hot-swap compliant I/Os and power-up/power-down friendly behavior (no sequencing required for supply voltages) reduce system-level power sequencing complexity.
• Package and Mounting — 256-FPBGA (17×17) fine-pitch BGA, surface-mount package (256-BGA package case) suitable for compact board layouts.
• Operating Range — Commercial grade operation with supply voltage range of 2.25 V to 5.25 V and operating temperature 0 °C to 70 °C.
• Diagnostics and Test — Boundary-scan testing compliant with IEEE 1149.1 (JTAG) and in-system diagnostic/verification capability referenced for the SX-A family.
• Security — Family-level secure programming technology (FuseLock™) to protect IP and prevent reverse engineering, as documented for the SX-A family.

Typical Applications

• PCI and Expansion Cards — Use on PCI-compliant boards where 66 MHz PCI compatibility and mixed 3.3 V/5 V signaling are required for interface logic and glue functions.
• Mixed-Voltage Interface Control — Ideal for systems that need level translation and custom interfacing between 2.5 V, 3.3 V and 5 V domains while maintaining 5 V tolerance.
• Embedded Control and Glue Logic — Implement custom control finite-state machines, bus bridging and peripheral interfaces using the device’s logic resources and abundant I/Os.
• In-System Programmable Designs — Systems that require field updates or in-system verification can take advantage of the device’s nonvolatile, single-chip programmability and diagnostic capabilities.

Unique Advantages

• Deterministic, User-Controlled Timing: Documented SX-A family timing control enables predictable system timing for critical interfaces.
• Mixed-Voltage I/O with 5 V Tolerance: Reduces the need for external level translators when interfacing across voltage domains, simplifying BOM and board routing.
• Nonvolatile Single-Chip Configuration: Eliminates external configuration memory and streamlines system initialization and field updates.
• Hot-Swap Capable I/Os: Helps support live-insertion scenarios and board-level maintenance without complex power sequencing.
• Compact Fine-Pitch BGA Package: 256-FPBGA (17×17) package supports high I/O density in space-constrained designs.
• Secure Programming Technology: FuseLock™-style protection for design IP and prevention of reverse engineering, as provided by the SX-A family.

Why Choose A54SX32A-FG256?

The A54SX32A-FG256 combines substantial programmable capacity (48,000 system gates, ~2,880 logic elements) with flexible, mixed-voltage I/O and nonvolatile single-chip configuration to simplify board-level design and deployment. Its family-provided features—hot-swap I/Os, power-up/power-down friendly operation, JTAG boundary-scan and built-in security—make it a practical choice for designers needing deterministic timing and field-programmable updates without external configuration components.

This device is well suited for engineers building PCI-capable interfaces, mixed-voltage embedded controllers, or any design requiring a compact, nonvolatile FPGA with strong I/O flexibility and in-system diagnostic capability.

Request a quote or contact sales to discuss availability, lead times and pricing for the A54SX32A-FG256.