A54SX72A-FG256

Overview

The A54SX72A-FG256 is a Field Programmable Gate Array from the SX-A family, manufactured by Microchip Technology. It features 108,000 system gates and 6,036 logic modules within a 256-pin Fine Pitch Ball Grid Array (FBGA) package. The device supports up to 203 user-programmable I/O pins and operates with supply voltages ranging from 2.25 V to 5.25 V. It delivers a maximum system performance frequency of 250 MHz with internal clock capabilities reaching 350 MHz. The component utilizes 0.22 μm / 0.25 μm CMOS antifuse technology and includes three global routed clocks plus one hardwired clock.

Feature Summary

• Supports mixed-voltage operation across 2.5 V, 3.3 V, and 5 V domains with 5 V input tolerance.
• Features hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements.
• Includes dedicated routing resources such as DirectConnect and FastConnect for deterministic timing and high-speed interconnect.
• Provides IEEE 1149.1 Boundary-Scan Testing compliance for diagnostic and verification purposes.

Applications

• High-performance digital signal processing implementations
• Complex state machine and control logic integration
• PCI-compliant interface designs requiring 66 MHz support
• Prototyping applications utilizing nonvolatile single-chip solutions

Procurement Notes

Verify the specific speed grade suffix associated with the FG256 package, as standard speed variants are available alongside faster options. Confirm temperature range requirements against the commercial, industrial, automotive, or military grades offered for this package type. Ensure design tools support the SX-A architecture for proper place-and-route implementation.

Selection Notes

Select this model when 108,000 system gates and 203 I/Os are required in a compact FBGA footprint. Consider the -F speed grade if lower performance is acceptable for reduced power consumption. Verify that the application does not require embedded memory blocks, as this device relies on distributed logic resources. Check compatibility with existing Actel Designer software versions for programming.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which are characterized by their metal-to-metal programmable antifuse technology. Unlike volatile SRAM-based FPGAs, these devices retain configuration data without external memory. The SX-A series bridges the gap between CPLDs and gate arrays, offering high density with predictable timing characteristics suitable for complex digital designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult Microchip Technology for current lifecycle status and potential obsolescence notices regarding the SX-A family.