A3P400-FG484

Field Programmable Gate Array Overview

The A3P400-FG484I is a ProASIC3 Flash Field Programmable Gate Array manufactured by Microsemi. It features 400,000 system gates and 9,216 configurable logic blocks (VersaTiles). The device operates within an industrial temperature range of -40°C to +100°C and utilizes a Fine Pitch Ball Grid Array package with 484 pins. Key specifications include a maximum clock frequency of 350 MHz, support for up to 194 user I/Os, and embedded memory comprising 54 kbits of SRAM and 1 kbit of nonvolatile FlashROM.

Field Programmable Gate Array Feature Summary

• Nonvolatile flash-based architecture providing instant-on functionality without external configuration PROMs.
• Integrated security mechanisms including FlashLock protection and AES-128 decryption engine for secure in-system programming.
• Flexible clock conditioning circuits featuring six CCC blocks and one integrated PLL for precise phase and frequency synthesis.
• Advanced I/O structure supporting mixed-voltage operation across multiple banks with hot-swappable capabilities.

Field Programmable Gate Array Applications

• Secure remote field updates over public networks
• Systems requiring instant-on initialization before processor wake-up
• Applications needing high-reliability nonvolatile programmable logic

Field Programmable Gate Array Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature rating (-40°C to +100°C) as defined in the ordering information. Confirm that the FG484 package designation matches the required footprint dimensions and pin pitch. Ensure design tools support the ProASIC3 Flash family for successful implementation.

Field Programmable Gate Array Selection Notes

Select this device for designs requiring 400,000 system gates with nonvolatile storage. Compare against A3P250 or A3P600 if gate density requirements differ. Verify that the 484-pin FBGA package fits the board space constraints. Check if ARM Cortex-M1 integration is needed, which requires the M1A3P400 variant.

Field Programmable Gate Array Part Context

This component belongs to the ProASIC3 Flash family, representing third-generation flash FPGA technology from Microsemi. It bridges the gap between CPLDs and complex FPGAs, offering ASIC-level costs with FPGA reprogrammability. The family emphasizes low power consumption and robust security features compared to traditional SRAM-based FPGAs.

Field Programmable Gate Array Replacement Considerations

Publicly confirmed substitutes include other devices within the ProASIC3 Flash family such as the A3P250 or A3P600, provided pin compatibility and density requirements are met. Migration should consult the ProASIC3 FPGA Fabric User Guide for design compliance.