A54SX16A-FG256A

Overview

The A54SX16A-FG256A 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 system gates and supports up to 180 user-programmable I/O pins. The device utilizes a 0.22µ CMOS process technology and offers internal performance up to 250 MHz. It operates within an extended temperature range of -40°C to 125°C and uses a 256-pin Fine Pitch Ball Grid Array (FBGA) package with a 1.0mm pitch.

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 support for multiple voltage standards including 3.3V PCI, 3.3V LVTTL, and 2.5V LVCMOS2.

Applications

• In-cabin telematics systems
• Automobile interconnect applications
• Performance-intensive embedded logic designs

Procurement Notes

Verify the specific ordering suffix 'G' indicates RoHS compliant packaging as per the datasheet. Confirm the device is an automotive grade part tested at room temperature with guard-banded specifications. Contact the manufacturer for options regarding guaranteed operation at extended temperatures if required.

Selection Notes

Select this component for designs requiring nonvolatile configuration and high-speed logic processing in automotive environments. Ensure the design accommodates the 256-pin FBGA package constraints. Verify that the 24,000 system gate capacity meets the logic density requirements for the intended application.

Part Context

This part belongs to the Actel SX-A Automotive Family FPGAs series. It shares architectural similarities with other devices in the family such as the A54SX08A, A54SX32A, and A54SX72A, differing primarily in logic capacity and pin counts. The SX-A family is characterized by its sea-of-modules architecture and antifuse programming technology.

Replacement Considerations

Direct replacements within the same package and pinout are limited due to the specific automotive grade and antifuse architecture. Consider the A54SX32A-FG256A for higher capacity or the A54SX08A for lower capacity, provided the pin compatibility and thermal requirements are met. Cross-family migration may require significant redesign.

FAQ

What is the maximum internal clock frequency for the A54SX16A?

The SX-A devices can operate with internal clock frequencies of up to 250 MHz.

How does the A54SX16A handle hot-swapping?

During power-up/down, all I/Os are tristated, preventing damage to the host system. The output pins remain in a high impedance state until normal operating conditions are reached.

Is Boundary Scan Testing supported?

Yes, automotive-grade SX-A devices are IEEE 1149.1 compliant and offer Boundary Scan Testing (BST) capabilities via JTAG pins.