A54SX16A-TQ144

Overview

The A54SX16A-TQ144 is a Field Programmable Gate Array from the Actel SX-A family, manufactured by Microchip Technology. It features 24,000 system gates and 1,452 logic modules within a 144-pin Thin Quad Flat Pack (TQFP) package. The device supports up to 113 user-programmable I/O pins and operates with a standard supply voltage of 2.5 V, ranging from 2.25 V to 2.75 V. It delivers 250 MHz system performance and 350 MHz internal clock speeds. The component is designed for commercial temperature ranges (0°C to +70°C) and utilizes nonvolatile antifuse technology.

Feature Summary

• Nonvolatile single-chip solution using 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 mixed-voltage operation including 3.3 V/5 V PCI, 5 V TTL, 3.3 V LVTTL, and 2.5 V LVCMOS2.
• Deterministic timing architecture with DirectConnect and FastConnect routing resources enabling 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 hot-swappable capabilities and cold-sparing redundancy.
• Secure embedded applications utilizing FuseLock technology to prevent reverse engineering.

Procurement Notes

Verify the specific speed grade suffix associated with the TQ144 package, as standard speed variants differ from faster grades. Confirm RoHS compliance status through official datasheets, as packaging options may vary. Check for end-of-life notifications or product discontinuance notices from Microchip Technology prior to finalizing procurement plans.

Selection Notes

Select this model when 24,000 system gates and 113 I/Os are required in a 144-pin surface-mount package. Ensure the design fits within the 1,452 CLB capacity and dedicated flip-flop limits. Verify that the commercial temperature range meets environmental requirements. Consider alternative packages like FBGA if higher pin counts or different form factors are needed.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which are fabricated on 0.22 μm / 0.25 μm CMOS antifuse technology. The family includes devices ranging from 8,000 to 108,000 system gates. The A54SX16A specifically targets mid-range complexity applications requiring high performance and security features inherent to antifuse architectures.

Replacement Considerations

Publicly confirmed substitute part numbers include A54SX16A-2TQ144 for faster speed grades and A54SX16A-FGG144 for Ball Grid Array packaging alternatives. Verify pin compatibility and electrical specifications before substitution.