A54SX16A-1PQ208I

Overview

The A54SX16A-1PQ208I is a nonvolatile Field Programmable Gate Array from the Microchip SX-A family, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 24,000 system gates, 768 logic modules, and 1,452 dedicated flip-flops. The device supports up to 175 user I/Os within a 208-pin Plastic Quad Flat Pack (PQFP) package. Operating at speed grade -1, it delivers approximately 15% faster performance than standard devices with a maximum internal clock frequency of 350 MHz. It operates on supply voltages ranging from 2.25 V to 2.75 V and supports mixed-voltage I/O standards including 2.5 V, 3.3 V, and 5 V.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnect elements for permanent configuration without external memory.
• Supports hot-swap compliant I/Os allowing insertion into active systems without power sequencing requirements or system degradation.
• Features deterministic timing through patented DirectConnect and FastConnect routing resources that minimize signal propagation delays.
• Includes Actel Secure Programming Technology with FuseLock to prevent reverse engineering and unauthorized design access.

Applications

• High-performance digital logic integration requiring low power consumption
• Systems requiring deterministic timing and fast state machine execution
• Applications needing mixed-voltage interface compatibility (2.5V, 3.3V, 5V)
• Secure designs requiring protection against reverse engineering

Procurement Notes

Verify component authenticity by checking markings against official datasheet specifications. Confirm the ordering suffix matches the required speed grade (-1), temperature range (Industrial), and package type (PQFP). Ensure compliance with relevant environmental regulations such as RoHS if applicable to the specific manufacturing batch.

Selection Notes

Select this model when 24,000 system gates are sufficient for the design logic. The -1 speed grade offers higher performance than standard variants. Verify that the 208-pin PQFP package fits the PCB footprint constraints. Ensure the design utilizes the available global clocks and I/O standards compatible with the 2.25V to 2.75V core voltage.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which were originally developed by Actel Corporation before being acquired by Microsemi and subsequently Microchip Technology. The SX-A series is characterized by its antifuse-based nonvolatile architecture, distinguishing it from SRAM-based FPGAs that require external configuration memory.

Replacement Considerations

Direct pin-compatible replacements within the same package and speed grade are limited due to the discontinuation of the SX-A line. Designers may consider migrating to newer Microchip FPGA families such as ProASIC3 or IGLOO, though these require schematic and layout modifications due to architectural differences.