A1425A-1PLG84I

Field Programmable Gate Array Overview

The A1425A-1PLG84I is an ACT3 series Field Programmable Gate Array (FPGA) manufactured by Microsemi Corporation. It features a logic capacity of 2,500 system gates organized into 310 LAB/CLB modules and provides 69 user-programmable I/O pins. The device operates within a supply voltage range of 4.5V to 5.5V and supports the -1 speed grade. It is housed in an 84-pin PLCC package with J-leads and is rated for commercial temperature operation from 0°C to 70°C.

Field Programmable Gate Array Feature Summary

• ACT3 architecture providing high-performance logic density with predictable place-and-route timing.
• Supports mixed-voltage I/O standards compatible with 5V and 3.3V systems.
• Includes dedicated fast clock networks for low-skew signal distribution.

Field Programmable Gate Array Applications

• High-speed interface bridging between legacy 5V logic and modern 3.3V components.
• Complex state machine implementation in industrial control systems.
• Protocol conversion logic for communication bus interfaces.

Field Programmable Gate Array Procurement Notes

Verify component authenticity through authorized channels as this part is discontinued. Confirm package integrity and moisture sensitivity level handling procedures prior to assembly. Check for specific revision markings on the die to ensure compatibility with existing design files.

Field Programmable Gate Array Selection Notes

Select this model when 2,500 system gates are sufficient for the design requirements. Ensure the 84-pin PLCC footprint matches the PCB layout. Consider the -1 speed grade if timing constraints require propagation delays under 10ns. Verify that the 69 available I/O pins meet the interface count needs.

Field Programmable Gate Array Part Context

This component belongs to the ACT3 family, which succeeded the ACT1 series. It offers higher density than the A1020 while maintaining pin compatibility with certain older Actel devices. The PLG84 variant specifically denotes the plastic leaded chip carrier package configuration used in surface-mount applications.

Field Programmable Gate Array Replacement Considerations

No direct pin-compatible replacements are officially documented for this specific discontinued part number. Designers may need to evaluate the A1425A-PQG100I or A1425A-1CQ132C for increased I/O counts, though package changes will require schematic and layout modifications.