A54SX16P-2TQ176

Overview

The A54SX16P-2TQ176 is a Field Programmable Gate Array from the Actel SX-A family, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 16,000 typical system gates and 1,452 logic modules (combinatorial cells). The device supports internal clock frequencies up to 350 MHz with a maximum system performance of 250 MHz. It features 176 pins in a Thin Quad Flat Pack (TQFP) package, offering up to 147 user-programmable I/Os. The architecture includes dedicated flip-flops for sequential logic and segmented routing resources.

Feature Summary

• Antifuse-based nonvolatile single-chip solution providing deterministic timing and high security against reverse engineering via FuseLock technology.
• Supports mixed-voltage operation at 2.5 V, 3.3 V, and 5 V with configurable I/O standards including 3.3 V/5 V PCI and 5 V TTL.
• Hot-swap compliant I/Os allow safe insertion into active systems without power sequencing requirements for supply voltages.
• Includes Boundary-Scan Testing (BST) compliant with IEEE Standard 1149.1 (JTAG) for in-system diagnostic and verification.

Applications

• Integration of 66 MHz PCI compliant designs
• High-performance state machines and fast counters
• Data path logic requiring deterministic timing

Procurement Notes

Verify the specific speed grade suffix '2' corresponds to the required performance level, as it indicates approximately 25% faster operation than the standard speed grade. Confirm that the TQFP-176 package availability aligns with current manufacturing schedules, noting that older speed grades may have limited support. Ensure the ordering suffix matches the desired temperature range and RoHS compliance status.

Selection Notes

Select this model when 16,000 system gates and 176-pin form factor are required. The -2 speed grade is suitable for designs needing higher frequency margins than the standard grade. Consider the A54SX16A variant if a different package or speed grade is preferred. Verify I/O voltage requirements match the supported 2.5 V, 3.3 V, and 5 V configurations.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which utilizes metal-to-metal programmable antifuse interconnect elements. The family ranges from 8,000 to 108,000 system gates, offering various package options including PQFP, TQFP, PBGA, FBGA, and CQFP. The SX-A architecture emphasizes low power consumption and high performance through its sea-of-modules design.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Designers should consult Microsemi or Actel sales representatives for alternative packages or updated speed grades within the SX-A family.