A54SX32A-FFG144

Overview

The A54SX32A-FFG144 is a Field Programmable Gate Array from the SX-A family, manufactured by Microsemi. It features 48,000 system gates and 2,880 logic modules within a 144-pin Fine Pitch Ball Grid Array package. The device supports up to 111 user-programmable I/O pins and includes dedicated flip-flops for sequential logic implementation. It operates with a maximum clock frequency of 172 MHz and utilizes 0.22 μm / 0.25 μm CMOS antifuse technology. The component provides mixed-voltage I/O support for 2.5 V, 3.3 V, and 5 V standards.

Feature Summary

• Supports hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements.
• Integrates nonvolatile antifuse architecture that prevents reverse engineering and eliminates configuration bitstream interception.
• Provides deterministic timing through patented metal-to-metal interconnect elements and direct routing resources.

Applications

• 66 MHz PCI compliant single-chip solutions
• Mixed-voltage interface designs supporting 3.3 V and 5 V standards
• High-performance digital logic integration requiring low power consumption

Procurement Notes

Verify the specific speed grade suffix associated with the FFG144 package to ensure compliance with target timing constraints. Confirm the temperature range designation matches the operational environment requirements. Check for RoHS compliance markings if environmental regulations apply to the final assembly process.

Selection Notes

Select this model when 48,000 system gates are required in a compact 144-pin footprint. Ensure the design fits within the 2,880 CLB limit and available I/O count. Consider the standard speed grade performance against application latency needs before choosing faster or slower variants.

Part Context

This component belongs to the Actel SX-A FPGA family, which utilizes antifuse technology for permanent programming. The SX-A series is designed for applications requiring high reliability and security, distinguishing it from volatile SRAM-based FPGAs. It serves as a cost-effective alternative to complex gate arrays for fixed-function logic implementations.

Replacement Considerations

Compatible packages include the A54SX32A-TQG144 (TQFP) and A54SX32A-FBGG329 (FBGA). Verify pinout compatibility and thermal characteristics when substituting different package types within the same device family.

FAQ

Does the A54SX32A-FFG144 require external configuration memory?

No, the device uses nonvolatile antifuse technology, eliminating the need for external configuration bitstreams or memory devices.

What is the maximum internal clock frequency supported?

The SX-A family architecture supports internal clock frequencies up to 350 MHz, though the specific speed grade determines the actual system performance.

Can unused I/O pins be left floating?

No, unused I/O pins must be configured as tristate outputs or tied to a defined logic level to prevent undefined states and potential current leakage.