A54SX16A-1FG256M

Overview

The A54SX16A-1FGG256M is a Field Programmable Gate Array from the Actel SX-A family, fabricated on 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 24,000 system gates and supports up to 360 user-programmable I/O pins. The device operates at a maximum frequency of 263 MHz with an internal performance capability of 350 MHz. It utilizes a Fine Pitch Ball Grid Array (FBGA) package with 256 pins and requires a 2.5 V supply voltage. The component supports mixed-voltage operation for 2.5 V, 3.3 V, and 5 V I/Os.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent low-impedance connections.
• Supports hot-swap compliant I/Os allowing insertion into active systems without degrading host reliability or requiring specific power sequencing.
• Includes boundary-scan testing capabilities compliant with IEEE Standard 1149.1 (JTAG) for superior diagnostic and verification.
• Features deterministic timing through unique local routing resources like DirectConnect and FastConnect within logic clusters.

Applications

• High-performance digital signal processing
• PCI-compliant interface designs
• Complex state machine implementations

Procurement Notes

Verify the exact ordering suffix against the manufacturer's current datasheet to confirm temperature grade and packaging compliance. Confirm availability status as legacy products may have limited stock or discontinuation notices. Ensure the supplier provides original manufacturer documentation to validate authenticity before purchase.

Selection Notes

Select this model when 24,000 system gates and 180 user I/Os in an FBGA package are required. The -1 speed grade offers approximately 15% faster performance than standard grades. Verify that the application environment falls within the specified commercial operating temperature range of 0°C to +70°C.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which are designed for cost-effective, high-performance applications using antifuse technology. The family includes devices ranging from 8,000 to 108,000 system gates, offering various package options including PQFP, TQFP, PBGA, and FBGA configurations.

Replacement Considerations

Direct replacements include other speed grades within the A54SX16A series such as A54SX16A-FGG256A or A54SX16A-2FGG256A, provided the pinout and gate count remain compatible. Verify thermal and electrical specifications match the design requirements when substituting speed grades.

FAQ

What is the maximum internal clock frequency supported by the A54SX16A?

The A54SX16A supports internal clock frequencies up to 350 MHz.

Does the A54SX16A support mixed-voltage I/O operation?

Yes, the device supports 2.5 V, 3.3 V, and 5 V mixed-voltage operation with 5 V input tolerance and drive strength.

How does the SX-A architecture ensure deterministic timing?

It uses unique local routing resources called DirectConnect and FastConnect, which minimize signal propagation delays and provide predictable performance.