A54SX16A-1TQG100I

Overview

The A54SX16A-1TQG100I is a Field Programmable Gate Array from the SX-A family, featuring 24,000 system gates and 1,452 logic modules. It operates at a maximum clock frequency of 263 MHz with an internal performance of 350 MHz. The device supports up to 81 user-programmable I/Os in a TQFP-100 package. It utilizes 0.22 μm / 0.25 μm CMOS antifuse technology and supports mixed-voltage operation for 2.5 V, 3.3 V, and 5 V I/Os. The component is rated for industrial temperature ranges (-40°C to +85°C) and includes boundary-scan testing compliant with IEEE Standard 1149.1.

Feature Summary

• Supports hot-swappable I/Os allowing insertion into active systems without power sequencing requirements.
• Provides deterministic timing through unique local routing resources like DirectConnect and FastConnect.
• Includes FuseLock security features to prevent reverse engineering and unauthorized design access.

Applications

• PCI-compliant embedded controller designs
• High-speed data path logic and state machines
• Industrial control systems requiring mixed-voltage interfaces

Procurement Notes

Verify the specific ordering suffix 'I' confirms the industrial temperature grade (-40°C to +85°C). Confirm the 'G' suffix if RoHS compliance is required, as standard packaging may differ. Ensure the TQFP-100 package height matches board clearance specifications. Check for discontinued status or alternative lead-free versions if sourcing from secondary markets.

Selection Notes

Select this model when 24,000 system gates are sufficient for the target logic density. The -1 speed grade offers approximately 15% faster performance than the standard grade. Verify that the 81 available I/O pins meet interface requirements. Consider the TQFP-100 package constraints for PCB layout and thermal management during the initial design phase.

Part Context

This component belongs to the Actel SX-A family of FPGAs, now manufactured by Microchip Technology. The SX-A series is characterized by its nonvolatile antifuse technology, which provides permanent configuration without external memory. This family bridges the gap between CPLDs and larger FPGAs, offering high performance with low power consumption.

Replacement Considerations

The A54SX16A-1TQG100I is functionally compatible with other A54SX16A variants sharing the same gate count and I/O count. Substitutes must match the TQFP-100 package dimensions and the -1 speed grade performance characteristics. Verify pinout compatibility before replacing with higher or lower capacity devices in the same family.