A54SX16A-1TQG144M

Overview

The A54SX16A-1TQG144M is a military-grade Field Programmable Gate Array from the Actel SX-A family, manufactured by Microchip Technology. It features 24,000 system gates and 1,452 logic modules within a 144-pin Thin Quad Flat Pack (TQFP) package. The device operates at a maximum system frequency of 263 MHz with an internal performance specification of 350 MHz. It supports mixed-voltage I/O standards including 2.5 V, 3.3 V, and 5 V, with a nominal operating voltage of 2.5 V. The component is rated for a wide industrial temperature range of -55°C to +125°C.

Feature Summary

• Military-grade reliability with extended temperature range support
• Nonvolatile antifuse architecture providing inherent security against reverse engineering
• Hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements
• Deterministic timing through metal-to-metal programmable interconnect elements

Applications

• High-reliability aerospace and defense signal processing
• Secure communication systems requiring anti-tamper protection
• Industrial control applications in extreme environmental conditions
• Spacecraft avionics and satellite subsystems

Procurement Notes

Verify the specific ordering suffix 'M' confirms the military temperature grade (-55°C to +125°C) and that the 'G' suffix indicates RoHS compliance if required. Confirm the package type matches the 144-pin TQFP form factor. Check for end-of-life status or obsolescence notices from the manufacturer before finalizing procurement plans.

Selection Notes

Select this part when military qualification is mandatory alongside high-density logic requirements. Ensure the design utilizes the 24,000 system gate capacity efficiently. Verify that the 263 MHz speed grade meets the timing constraints of the target application. Consider the nonvolatile nature of the antifuse technology which prevents bitstream interception during power-up.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which utilize 0.22 μm / 0.25 μm CMOS antifuse technology. The SX-A series is known for its deterministic performance and high-speed routing capabilities. The A54SX16A variant specifically offers a balance of logic density and I/O count suitable for complex digital designs requiring robustness and security.

Replacement Considerations

Direct pin-compatible replacements are limited due to the proprietary antifuse technology. Evaluate modern Rad-Hard or commercial-off-the-shelf FPGAs only if architectural migration is feasible. Cross-reference with other A54SX16A variants differing only in speed grade or temperature rating if military specs can be relaxed.