A54SX16A-PQ208

Overview

The A54SX16A-PQ208 is a nonvolatile FPGA from the SX-A family, fabricated on 0.22 μm / 0.25 μm CMOS antifuse technology. It provides 24,000 system gates and supports up to 175 user-programmable I/O pins within a 208-pin Plastic Quad Flat Pack (PQFP) package. The device features 1,452 combinatorial cells and 924 dedicated flip-flops, enabling high-performance logic implementation with internal clock frequencies reaching 350 MHz. It operates at supply voltages of 2.5 V, 3.3 V, or 5 V, supporting mixed-voltage I/O standards including 3.3 V/5 V PCI, 5 V TTL, and 3.3 V LVTTL.

Feature Summary

• Supports hot-swappable I/O configurations for safe insertion into active systems without power sequencing requirements.
• Includes patented DirectConnect and FastConnect routing resources for deterministic timing and minimal signal propagation delays.
• Integrates Actel FuseLock security technology to prevent reverse engineering and unauthorized design access.
• Provides IEEE 1149.1 compliant Boundary-Scan Testing capabilities via JTAG interface.

Applications

• High-speed data path logic and fast counters requiring deterministic performance
• Complex state machine implementations with mixed voltage I/O interfaces
• Secure embedded control applications utilizing nonvolatile antifuse architecture

Procurement Notes

Verify the specific speed grade suffix associated with the PQ208 package, as standard speed variants exist alongside faster options. Confirm temperature range compatibility with the application environment, noting that commercial and industrial grades are available within this package type. Ensure the ordering documentation specifies the correct lead-free status if RoHS compliance is required for the manufacturing process.

Selection Notes

Select this component when a single-chip nonvolatile solution is required to replace multiple CPLDs or gate arrays. Evaluate the 175 available I/O pins against system interface needs, considering the support for 5V tolerance inputs. Verify that the 24,000 system gate capacity meets the logic density requirements for the target design complexity.

Part Context

This part belongs to the Microchip (formerly Actel) SX-A family of FPGAs, which utilizes metal-to-metal programmable antifuse interconnect elements. The family ranges from 12,000 to 108,000 system gates, offering various package options including PQFP, TQFP, and BGA types. The A54SX16A specifically targets mid-range logic density applications requiring high performance and robust security features.

Replacement Considerations

Direct pin-compatible replacements within the same package and speed grade should be sourced from the A54SX16A series. Cross-family migration to newer Microchip FPGA architectures requires careful review of I/O configurations and routing resources, as architectural differences may impact timing and functionality.