A54SX08A-TQ144

Overview

The A54SX08A-TQ144 is a Field Programmable Gate Array from the SX-A family, manufactured by Microchip Technology. It features 12,000 system gates and 768 logic modules within a 144-pin Thin Quad Flat Pack (TQFP) package. The device supports up to 113 user-programmable I/O pins and includes three global clock networks. It operates with supply voltages of 2.5 V, 3.3 V, or 5 V and offers mixed-voltage operation with 5 V input tolerance. Standard speed grade devices achieve 250 MHz system performance.

Feature Summary

• Nonvolatile antifuse architecture providing deterministic timing and high security against reverse engineering
• Hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements
• Configurable I/O standards supporting 3.3 V/5 V PCI, 5 V TTL, 3.3 V LVTTL, and 2.5 V LVCMOS2
• Integrated Boundary-Scan Testing (BST) compliant with IEEE Standard 1149.1 (JTAG)

Applications

• Low-power, high-performance single-chip solutions
• 66 MHz PCI compliant designs
• Systems requiring hot-swap capability

Procurement Notes

Verify the specific speed grade suffix required for the design, as blank indicates standard speed while -1 and -2 offer faster performance. Confirm temperature grade availability, as commercial (blank), industrial (I), automotive (A), and military (M) options exist for this package. Check current distribution status, as older FPGA families may have limited stock or end-of-life implications.

Selection Notes

Select the A54SX08A-TQ144 when 12,000 system gates and 113 I/Os are sufficient for the logic density. Ensure the design utilizes the 2.5 V, 3.3 V, or 5 V supply rails compatible with the SX-A family. Consider the nonvolatile nature of the antifuse technology if reprogrammability is not required, which simplifies the system boot process compared to volatile FPGAs.

Part Context

This component belongs to the Actel SX-A family of FPGAs, fabricated on 0.22 μm / 0.25 μm CMOS antifuse technology. The SX-A series was designed to integrate CPLD and FPGA functionality into a single chip, offering high performance and low power consumption. The TQFP-144 package is a common form factor for this density level in the family.

Replacement Considerations

Direct pin-to-pin replacements within the same package and gate count are limited due to the specific antifuse architecture. Other members of the SX-A family, such as the A54SX16A, offer higher capacity but may require schematic changes. Modern alternatives from Microchip's SmartFusion or IGLOO families provide similar functionality with different packaging and voltage requirements.