A54SX32-CQ256B

Overview

The A54SX32-CQ256B is a high-reliability Field Programmable Gate Array from the HiRel SX-A family, manufactured by Microsemi. It features 48,000 system gates and 2,880 logic modules within a 256-pin Ceramic Quad Flat Pack (CQFP) package. The device supports mixed-voltage operation at 2.5 V, 3.3 V, and 5 V with 5 V input tolerance. It achieves a maximum internal clock frequency of 240 MHz and a pin-to-pin clock-to-out delay of 5.3 ns under military temperature conditions (-55°C to +125°C). The part is MIL-STD-883 Class B certified.

Feature Summary

• MIL-STD-883 Class B certification for high reliability applications
• Military temperature testing across -55°C to +125°C range
• Supports hot-swap compliant I/Os without voltage sequencing requirements
• Includes Actel Secure Programming Technology with FuseLock to prevent reverse engineering

Applications

• Military and aerospace electronic systems
• High-reliability space equipment
• Defense communication hardware

Procurement Notes

Verify that the ordering suffix 'B' confirms MIL-STD-883 Class B qualification status. Confirm the ceramic CQFP-256 package matches the design footprint. Ensure the speed grade meets the required timing constraints for the target application environment.

Selection Notes

Select this component when radiation tolerance is not required but high reliability and deterministic timing are critical. Compare against commercial SX-A variants if cost reduction is possible for non-military environments. Verify that the 256-pin CQFP package is compatible with the assembly process.

Part Context

This device belongs to the HiRel SX-A family of antifuse FPGAs. It shares architectural similarities with the A54SX32A series but includes specific screening and testing protocols defined by MIL-STD-883. The 'CQ256' designation indicates the specific ceramic flat pack package type used in this variant.

Replacement Considerations

Direct replacements include other A54SX32A variants with different packages or speed grades, provided they meet the MIL-STD-883 Class B requirement. Cross-reference with A54SX32-P1BGG329 for plastic BGA options if package migration is permitted.