A54SX32A-PQ208

Overview

The A54SX32A-PQ208 is a nonvolatile Field Programmable Gate Array from the Actel SX-A family, fabricated on 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 48,000 system gates and supports up to 174 user-programmable I/Os within a 208-pin Plastic Quad Flat Pack (PQFP) package. The device operates at standard speed grades with internal clock frequencies reaching 350 MHz and system performance up to 250 MHz. It features mixed-voltage I/O support for 2.5 V, 3.3 V, and 5 V standards, including PCI compliance. The architecture utilizes a sea-of-modules design with DirectConnect and FastConnect routing resources to ensure deterministic timing and high resource utilization.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent configuration without external memory.
• Supports hot-swap compliant I/Os allowing insertion into active systems without power sequencing requirements or system degradation.
• Features configurable weak-resistor pull-up or pull-down capabilities for individual I/O pins to establish known states during power-up.
• Includes dedicated boundary-scan testing compliant with IEEE Standard 1149.1 (JTAG) for superior diagnostic and verification capabilities.

Applications

• High-performance logic integration replacing complex programmable logic devices (CPLDs) in industrial control systems.
• PCI-compliant interface designs requiring 66 MHz bus speeds and mixed-voltage operation.
• Applications necessitating deterministic timing and pin-locking capabilities for concurrent PCB development.
• Secure embedded designs requiring protection against reverse engineering via FuseLock technology.

Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors or direct channels. Confirm that the specific ordering suffix matches the required temperature grade and package variant. Ensure compatibility with Actel Designer software versions supporting the SX-A family architecture. Check for any relevant product change notifications affecting manufacturing or packaging details prior to procurement.

Selection Notes

Select this model when 48,000 system gates and 174 user I/Os are required in a PQFP-208 form factor. Choose the standard speed grade unless faster propagation delays are necessary, noting that higher speed grades may have different availability. Verify that the target application supports the 2.5 V core voltage and compatible I/O standards. Consider the nonvolatile nature of the antifuse technology if reprogramming flexibility is not a primary requirement.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which were originally developed by Actel Corporation before being acquired by Microchip Technology. The SX-A series is characterized by its high-density antifuse technology and robust I/O flexibility. The A54SX32A represents a mid-range capacity device within this portfolio, bridging the gap between lower-density models like the A54SX16A and higher-density options such as the A54SX72A.

Replacement Considerations

Direct functional replacements within the same package and pinout are limited due to the proprietary antifuse architecture. Designers migrating from other FPGA families must account for differences in logic block structure and routing resources. Consult Microchip Technology for current equivalent recommendations or updated family members that offer similar gate counts and I/O configurations.