A54SX16-2PQG208I

Overview

The A54SX16-2PQG208I is an antifuse-based Field Programmable Gate Array from the Microsemi SX-A family. It provides 24,000 system gates and 1,452 logic modules within a 208-pin Plastic Quad Flat Pack (PQFP) package. The device supports up to 175 user I/Os and operates at a maximum system frequency of 250 MHz with internal performance reaching 350 MHz. It functions across a voltage range of 2.25 V to 5.25 V and is rated for industrial temperatures between -40°C and +85°C.

Feature Summary

• Supports hot-swap operations and flexible power sequencing without supply voltage constraints
• Features deterministic timing through patented metal-to-metal antifuse interconnect technology
• Includes boundary-scan testing compliant with IEEE Standard 1149.1 (JTAG)
• Provides FuseLock security features to prevent reverse engineering and design theft

Applications

• High-performance digital signal processing systems
• PCI-compliant interface designs operating at 66 MHz
• Complex state machine implementations requiring fast counters
• Data path logic integration replacing multiple CPLDs

Procurement Notes

Verify component authenticity by checking markings against official Actel/Microsemi specifications. Confirm the suffix 'I' indicates industrial temperature grade and '2' denotes the specific speed grade. Ensure the PQFP package matches the required footprint dimensions. Request RoHS compliance documentation if environmental regulations apply to the assembly process.

Selection Notes

Select this model when 24,000 system gates are sufficient for the target logic density. The -2 speed grade offers approximately 25% faster performance than standard grades. Verify that the 208-pin PQFP package fits the PCB layout constraints. Consider the 175 available user I/Os to ensure adequate pin count for external connections.

Part Context

This part belongs to the SX-A family of nonvolatile FPGAs fabricated on 0.22 μm/0.25 μm CMOS technology. The family includes variants like A54SX08A, A54SX32A, and A54SX72A, scaling from 12,000 to 108,000 system gates. The SX-A architecture utilizes a sea-of-modules design with dedicated routing resources for high-speed operation.

Replacement Considerations

Direct substitutes include other A54SX16A variants with different speed grades or packages, such as A54SX16-1PQG208I or A54SX16-PQ208. Cross-family replacements require evaluating gate counts and I/O availability against the A54SX16A specifications.