A54SX16A-FGG256A

Overview

The A54SX16A-FGG256A is an automotive-grade Field Programmable Gate Array from the SX-A family, manufactured by Microchip Technology. It features a sea-of-modules architecture with 24,000 typical system gates and 1,452 combinatorial cells. The device supports up to 180 user-programmable I/O pins and includes dedicated flip-flops for sequential logic. Operating at a maximum internal clock frequency of 250 MHz, it utilizes a 0.22µ CMOS process technology. The component is housed in a 256-pin Fine Pitch Ball Grid Array (FBGA) package with a 1.0mm pitch. It operates within an extended temperature range of -40°C to +125°C and requires a supply voltage between 2.25V and 2.75V.

Feature Summary

• Nonvolatile antifuse-based architecture providing deterministic timing and inherent security against reverse engineering.
• Hot-swap compliant I/Os allowing safe insertion into active systems without power sequencing requirements.
• Integrated Boundary Scan Testing (BST) compliant with IEEE Standard 1149.1 for diagnostic and verification capabilities.
• Configurable I/O modules supporting mixed-voltage operation including 3.3V PCI, LVTTL, and 2.5V LVCMOS2 standards.

Applications

• In-cabin telematics systems for automotive environments
• Automobile interconnect applications requiring high reliability
• Performance-intensive logic integration replacing multiple CPLDs

Procurement Notes

Verify that the specific ordering suffix corresponds to the required lead-free packaging status. Confirm that the automotive grade designation aligns with the intended operating temperature range. Ensure compatibility with the Designer software version used for configuration. Check for any recent Product Change Notifications regarding manufacturing or material updates.

Selection Notes

Select this device when design constraints require nonvolatile configuration and robust security features. Consider the 250 MHz internal performance limit for complex logic implementations. Evaluate the 180 I/O count against interface requirements. Verify that the FBGA-256 package fits the available PCB real estate and thermal management strategy.

Part Context

This part belongs to the Actel SX-A Automotive Family, which bridges the gap between standard commercial FPGAs and specialized ASICs. The SX-A line emphasizes low power consumption and fast time-to-market through its synthesis-friendly sea-of-modules architecture. It serves as a drop-in replacement for legacy CPLD designs while offering higher density and flexibility.

Replacement Considerations

Direct pin-compatible replacements within the same package are limited due to the specific antifuse architecture. Review the broader A54SX16A series for alternative speed grades or package options if the FBGA-256 form factor is flexible. Cross-reference with newer Microchip FPGA families for long-term availability assurance.