A54SX16A-FG144I

Overview

The A54SX16A-FG144I is a Field Programmable Gate Array from the Actel SX-A family, featuring 24,000 system gates and 1,452 logic modules. It utilizes 0.22 μm / 0.25 μm CMOS antifuse technology with a standard speed grade. The device operates within an industrial temperature range of -40°C to +85°C and is housed in a 144-pin Fine Pitch Ball Grid Array (FG) package with a 1.0 mm pitch. It supports up to 113 user-programmable I/O pins and includes three global clock networks.

Feature Summary

• Nonvolatile single-chip solution using metal-to-metal programmable antifuse interconnect elements for permanent low-impedance connections.
• Supports mixed-voltage operation across 2.5 V, 3.3 V, and 5 V domains with 5 V input tolerance and drive strength.
• Hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements.
• Deterministic timing architecture with DirectConnect and FastConnect routing resources for predictable signal propagation.

Applications

• High-performance digital logic integration requiring deterministic timing
• Systems requiring hot-swappable interface capabilities
• Mixed-voltage I/O applications supporting multiple logic standards

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type, speed grade, and temperature rating. Ensure compatibility with design tools such as Actel Designer for programming and configuration. Check for RoHS compliance status if required by assembly specifications.

Selection Notes

Select this component when 24,000 system gates and 1,452 logic modules are sufficient for the design. The FG144 package is suitable for space-constrained PCB layouts requiring fine-pitch connections. Consider the industrial temperature grade if the application environment exceeds commercial limits.

Part Context

This part belongs to the Actel SX-A family of FPGAs, which are designed for cost-effective, high-performance designs using antifuse technology. The family includes devices ranging from 8,000 to 108,000 system gates, offering various package options and speed grades to suit different performance and pin-count requirements.

Replacement Considerations

Direct replacements may include other parts within the A54SX16A series with different speed grades or packages, such as A54SX16A-TQ144I or A54SX16A-PQ208I, provided pinout and resource requirements match. Verify that any substitute maintains the same antifuse technology characteristics and I/O voltage levels.

FAQ

What is the maximum internal clock frequency for the A54SX16A?

The A54SX16A devices support internal clock frequencies up to 350 MHz.

How does the SX-A family handle reverse engineering protection?

Reverse engineering is prevented by the inherent difficulty in distinguishing programmed from unprogrammed antifuses and by FuseLock™ security fuses that block internal probing and overwriting.

Can unused I/O pins be left floating?

No, unused I/O pins should be configured as tristate outputs by the design software. Leaving them floating can cause unpredictable behavior or excessive current consumption.