A54SX16P-VQG100I

Overview

The A54SX16P-VQG100I is a Field Programmable Gate Array (FPGA) from the Actel SX-A family, fabricated using 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 24,000 system gates and 1,452 configurable logic blocks (CLBs). The device supports up to 350 MHz internal performance with a maximum user I/O count of 81 in its 100-pin package. It operates at supply voltages of 2.5 V, 3.3 V, or 5 V, featuring mixed-voltage I/O support with 5 V input tolerance. The component includes dedicated flip-flops for sequential logic and supports hot-swap capabilities.

Feature Summary

• Nonvolatile single-chip solution utilizing metal-to-metal programmable antifuse interconnects for permanent configuration without external memory.
• Hot-swap compliant I/Os allowing insertion into active systems without degrading host reliability or requiring specific power sequencing.
• Configurable I/O standards supporting 3.3 V/5 V PCI, 5 V TTL, 3.3 V LVTTL, and 2.5 V LVCMOS2 with individually selectable slew rates.
• Deterministic timing architecture with DirectConnect and FastConnect routing resources ensuring predictable signal propagation delays.

Applications

• High-performance digital logic integration replacing complex CPLDs or gate arrays
• PCI-compliant interface designs requiring 66 MHz bus speeds
• Systems requiring deterministic timing and pin-locking capabilities
• Applications needing secure, nonvolatile configuration without bitstream interception

Procurement Notes

Verify the specific ordering suffix 'VQG' against the manufacturer's current datasheet to confirm package type and lead-free status. Confirm temperature grade 'I' corresponds to the required industrial range of -40°C to +85°C. Check for RoHS compliance markers as packaging options may vary. Ensure design tools support the SX-A family architecture for proper place-and-route implementation.

Selection Notes

Select this model when 24,000 system gates and 81 user I/Os are sufficient for the design. Choose the Industrial temperature grade if operation outside commercial limits is required. Consider the TQFP-100 package constraints for PCB layout. Verify that the antifuse programming infrastructure is available, as reprogramming is not supported once configured.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which utilizes antifuse technology for nonvolatile configuration. The SX-A series offers high-speed performance with low power consumption, targeting applications where deterministic timing and security are critical. The A54SX16 variant sits between the smaller A54SX08 and larger A54SX32 devices in terms of logic capacity.

Replacement Considerations

Direct replacements within the same package and pinout include other speed grades of the A54SX16A series, such as A54SX16A-1TQG100I or A54SX16A-2TQG100I, provided timing requirements are met. Cross-family migration to ProASIC3 or SmartFusion requires significant architectural redesign due to differences in configuration memory and logic structure.