A54SX16P-TQ176I

Overview

The A54SX16P-TQ176I 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 1452 logic modules, comprising 924 combinatorial cells and 512 dedicated flip-flops. The device supports up to 180 user-programmable I/Os and features three global clock networks. Operating at an industrial temperature range of -40°C to +85°C, it utilizes a 176-pin Thin Quad Flat Pack (TQFP) package with a height of 1.40 mm. The architecture enables internal performance up to 350 MHz and supports mixed-voltage operation for 2.5 V, 3.3 V, and 5.0 V I/O standards.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent low-impedance connections.
• Hot-swap compliant I/Os allowing safe insertion into electrically active systems without power sequencing requirements.
• Deterministic timing architecture featuring DirectConnect and FastConnect routing resources for predictable signal propagation.
• Integrated Boundary-Scan Testing (BST) compliant with IEEE Standard 1149.1 (JTAG) for in-system diagnostic verification.

Applications

• High-performance digital logic integration requiring deterministic timing and low power consumption
• PCI-compliant interface designs supporting 66 MHz bus speeds
• Systems requiring hot-swappable capabilities and mixed-voltage I/O interfacing

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product documentation to confirm package type, speed grade, and temperature rating. Ensure that the selected component matches the required industrial temperature specifications and pin count for the target application design.

Selection Notes

Select this model when a nonvolatile FPGA with high-speed internal performance and robust security features is required. Consider the 176-pin TQFP package constraints and verify that the available user I/O count meets the interface requirements. Confirm compatibility with the Actel Designer software tools for place-and-route implementation.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which are designed for cost-effective, low-power applications. The family offers scalable gate counts ranging from 12,000 to 108,000 system gates across different device variants, providing a versatile platform for integrating complex logic functions into a single chip.

Replacement Considerations

Cross-reference with other A54SX16A variants sharing the same package and speed grade. Verify functional equivalence regarding logic capacity and I/O configurations before substitution.

FAQ

What is the maximum internal clock frequency supported by the A54SX16P-TQ176I?

The device supports internal clock frequencies up to 350 MHz, enabling fast execution of complex logic functions.

How does the SX-A architecture ensure design security?

Security is ensured through nonvolatile antifuse technology, which makes reverse engineering difficult, and FuseLock technology, which prevents unauthorized reading or overwriting of the design.

Can the I/Os be powered up or down in any order?

Yes, the device supports power-up/down friendly operation where supply voltages do not require strict sequencing, and I/Os remain tristated during power transitions.