A54SX08A-1TQ144I

Overview

The A54SX08A-1TQ144I is an antifuse-based Field Programmable Gate Array from the SX-A family, manufactured by Microchip Technology. It provides 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 operates at a maximum system frequency of 250 MHz with internal performance reaching 350 MHz. It functions within an industrial temperature range of -40°C to +85°C and utilizes 0.22 μm / 0.25 μm CMOS technology.

Feature Summary

• Supports hot-swap compliant I/Os allowing power-up/down without voltage sequencing requirements
• Features deterministic timing with user-controllable delays and 100% pin-locking capability
• Includes Actel Secure Programming Technology with FuseLock to prevent reverse engineering
• Complies with IEEE Standard 1149.1 for boundary-scan testing via JTAG interface

Applications

• Low-power, high-performance single-chip integration designs
• Systems requiring nonvolatile configuration without external bitstreams
• Applications needing mixed-voltage operation with 5V input tolerance
• Industrial environments requiring extended temperature stability

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current datasheet to confirm package type, speed grade, and temperature range. Ensure compatibility with existing design tools such as Actel Designer software. Confirm that the antifuse technology aligns with long-term supply requirements, as these devices are non-reprogrammable once programmed.

Selection Notes

Select this model when 12,000 system gates and 113 I/Os fit the design constraints within a TQFP-144 footprint. Consider the SX-A family architecture for applications prioritizing deterministic timing and low capacitance routing over reprogrammability. Verify that the 2.5V, 3.3V, or 5V I/O standards match the target system interfaces.

Part Context

This component belongs to the Actel SX-A family of FPGAs, which utilize metal-to-metal programmable antifuse interconnect elements. The family offers varying capacities from 8,000 to 108,000 system gates. The A54SX08A variant specifically targets mid-range complexity applications requiring high-speed performance and secure, nonvolatile configuration in a compact form factor.

Replacement Considerations

Direct replacements within the same package and pinout include other speed grades of the A54SX08A series, such as the standard speed version or faster variants like the -1 or -2 grades, provided timing constraints allow. Cross-family migration to newer Microchip FPGA architectures requires significant redesign due to differences in programming technology and architecture.