A54SX32A-CQ256B

Overview

The A54SX32A-CQ256B is a high-reliability Field Programmable Gate Array from the HiRel SX-A family, manufactured by Microchip Technology. It provides 48,000 system gates and supports up to 228 user-programmable I/O pins within a 256-pin Ceramic Quad Flat Pack (CQFP) package. The device operates at a standard speed grade with a maximum internal clock frequency of 240 MHz and a typical pin-to-pin performance of 215 MHz under military temperature conditions. It features mixed-voltage operation supporting 2.5 V, 3.3 V, and 5 V supplies, ensuring compatibility with various logic standards.

Feature Summary

• Military-grade reliability certified to MIL-STD-883 Class B requirements
• Nonvolatile antifuse architecture providing deterministic timing and design security
• Hot-swap compliant I/Os allowing safe insertion into active systems
• Integrated Boundary-Scan Testing (BST) compliant with IEEE 1149.1

Applications

• High-reliability military avionics and defense systems
• Spacecraft electronic subsystems requiring radiation tolerance
• Industrial control systems demanding long-term stability
• Prototyping platforms for RadTolerant designs

Procurement Notes

Verify that the specific ordering suffix corresponds to the required qualification level. The 'M' suffix indicates Military ambient temperature range, while 'B' denotes MIL-STD-883 Class B screening. Confirm package type matches the CQFP form factor. Ensure compliance with export regulations such as ITAR or EAR if applicable to the destination.

Selection Notes

Select this component when nonvolatile configuration and high-speed deterministic performance are critical. The A54SX32A offers sufficient logic density for complex state machines and interface bridging. Consider the 256-pin CQFP package only if hermetic sealing is mandatory for the environmental conditions. Evaluate power supply requirements for mixed 2.5V/3.3V/5V operation before finalizing the design.

Part Context

This part belongs to the Actel HiRel SX-A family of FPGAs, which utilizes metal-to-metal antifuse technology. Unlike SRAM-based devices, these FPGAs retain their configuration without external memory. The family includes variants like the A54SX72A for higher capacity. The A54SX32A serves as a mid-range solution balancing gate count and I/O availability for robust embedded applications.

Replacement Considerations

Direct replacements must maintain the same antifuse architecture and MIL-STD-883 Class B certification. Verify pinout compatibility with the 256-pin CQFP package. Check if alternative speed grades meet the 215 MHz system performance requirement. Ensure the substitute supports the same mixed-voltage I/O standards.