A54SX72A-FG256

The A54SX72A-FG256 is a commercial-grade SX-A family FPGA from Microchip Technology offered in a 256-ball fine-pitch BGA (256-FPBGA, 17×17) package. It provides a nonvolatile, single-chip programmable logic solution with 108,000 system gates and 6,036 logic elements for board-level control, interface bridging, and embedded system functions.

Designed for mixed-voltage systems, the device supports a wide supply range (2.25 V to 5.25 V) and up to 203 user I/Os, delivering deterministic timing, in-system diagnostic capability, and security features suited to a variety of commercial electronic designs.

Key Features

• Logic Capacity  6,036 logic elements and approximately 108,000 system gates to implement medium-density FPGA functions.
• Flip-Flops and Clocks  Up to 2,012 dedicated flip-flops with 3 global clocks and 4 quadrant clocks for structured clocking domains.
• High-Speed Performance  SX-A family performance characteristics include up to 250 MHz system performance and 350 MHz internal performance as documented for the family.
• I/O Density and Flexibility  203 user I/Os with configurable I/O support for multiple standards, enabling mixed-voltage operation and flexible interfacing.
• Mixed-Voltage and 5 V Tolerance  Supports 2.5 V, 3.3 V, and 5 V mixed-voltage operation with 5 V input tolerance and 5 V drive strength where applicable.
• Nonvolatile Single-Chip Configuration  Nonvolatile architecture provides single-chip configuration without external configuration memory.
• Design Security and Test  Includes Actel Secure Programming Technology (FuseLock™) to protect design IP and supports IEEE 1149.1 JTAG boundary-scan testing plus in-system diagnostic and verification via Silicon Explorer II.
• Package and Mounting  256-FPBGA (17×17) fine-pitch BGA, surface-mount package optimized for compact board designs; RoHS compliant.
• Supply and Operating Range  Wide supply range of 2.25 V to 5.25 V and commercial operating temperature 0 °C to 70 °C.
• Board-Friendly I/Os  Hot-swap compliant I/Os and configurable weak pull-up/pull-down options help simplify system power sequencing and hot-insert scenarios.

Typical Applications

• Interface Bridging and Glue Logic  Use the A54SX72A-FG256 to implement board-level protocol bridging and custom interface logic where mixed-voltage I/O and deterministic timing are required.
• PCI-Compatible Systems  Suitable for designs that require 66 MHz PCI compatibility and flexible I/O standards for legacy or mixed-voltage PCI signaling.
• Secure or IP-Sensitive Designs  Applications that require on-chip IP protection and in-system verification can leverage the device’s FuseLock security and diagnostic capabilities.
• In-System Configurable Control  Field-programmable control logic, state machines, and peripheral management functions that benefit from nonvolatile, single-chip configuration.

Unique Advantages

• Nonvolatile, single-chip solution: Eliminates the need for external configuration memory, simplifying BOM and system design.
• Robust I/O flexibility: Configurable I/O standards and mixed-voltage support (2.5 V, 3.3 V, 5 V) with 5 V tolerance enable versatile interfacing without extra level shifting in many use cases.
• Security and test built in: FuseLock™ secure programming and IEEE 1149.1 boundary-scan plus in-system diagnostics provide IP protection and easier production testability.
• Balanced capacity and performance: 6,036 logic elements, ~108,000 system gates, and family-documented performance figures support medium-density designs that need predictable timing.
• Compact BGA package: 256-FPBGA (17×17) fine-pitch BGA delivers high I/O count (203 pins) in a compact surface-mount footprint.
• Commercial readiness: Commercial-grade temperature range (0 °C to 70 °C) and RoHS compliance for standard commercial applications.

Why Choose A54SX72A-FG256?

The A54SX72A-FG256 provides a balanced combination of logic capacity, flexible I/O, and nonvolatile single-chip configuration for commercial embedded designs. Its documented family-level performance, on-chip security features, and diagnostic support make it a practical choice for designers needing medium-density programmable logic with predictable behavior and simplified system integration.

This device is well suited to engineers building board-level interface logic, PCI-compatible subsystems, and secure programmable control functions who require a compact, RoHS-compliant BGA package with mixed-voltage I/O capabilities.

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