A54SX32A-1TQ100

Overview

The A54SX32A-1TQ100 is a Field Programmable Gate Array from the SX-A family, featuring 48,000 system gates and 81 user-programmable I/Os. It operates at a maximum frequency of 278 MHz with a 2.5 V supply voltage. The device utilizes 0.22 μm / 0.25 μm CMOS antifuse technology and supports mixed-voltage operation including 3.3 V and 5.0 V inputs. It is housed in a 100-pin Thin Quad Flat Pack (TQFP) package.

Feature Summary

• Supports hot-swap compliant I/Os for safe insertion into active systems without power sequencing requirements.
• Provides deterministic timing through unique local routing resources like DirectConnect and FastConnect.
• Includes Actel Secure Programming Technology with FuseLock to prevent reverse engineering and design theft.

Applications

• 66 MHz PCI compliant interface integration
• Low-power high-performance logic designs
• Systems requiring mixed 3.3 V and 5.0 V I/O standards

Procurement Notes

Verify the specific speed grade suffix '1' corresponds to the required performance level, as it indicates approximately 15% faster timing than standard. Confirm the temperature range matches the application environment, noting that the absence of an industrial suffix typically denotes commercial grade. Ensure the TQFP package dimensions align with the PCB footprint specifications provided in the datasheet.

Selection Notes

Select this model when 48,000 system gates are sufficient for the design complexity. Consider the 278 MHz operating speed against the system clock requirements. Verify that the 81 available I/O pins meet the interface count needs. Check if the commercial temperature range is adequate or if an industrial variant is necessary for harsher environments.

Part Context

This component belongs to the Actel SX-A FPGA family, which uses nonvolatile antifuse technology. Unlike volatile FPGAs, it does not require external configuration memory. The SX-A series offers high performance and low power consumption, making it suitable for cost-effective single-chip solutions in embedded applications.

Replacement Considerations

Direct replacements within the same package and pinout include other speed grades of the A54SX32A series, such as the standard speed version or the -2 speed grade. Cross-family replacements would require significant schematic and layout changes due to architectural differences.