A1280A-PLG84I

Field Programmable Gate Array Overview

The A1280A-PLG84I is an Actel ACT 2 series Field Programmable Gate Array (FPGA) manufactured by Microsemi Corporation. It features a density of 8,000 equivalent gates organized into 1,232 Configurable Logic Blocks (CLBs). The device is housed in an 84-pin Plastic Leaded Chip Carrier (PLCC) package with J-leads. It operates on a single 5V supply voltage within the commercial temperature range of 0°C to 70°C. Key electrical specifications include a maximum clock frequency of 50 MHz and a typical CLB combinatorial delay of 5 ns. The component has a Moisture Sensitivity Level (MSL) rating of 3.

Field Programmable Gate Array Feature Summary

• High-density logic architecture utilizing 1,232 CLBs for complex digital design implementation
• Non-volatile Flash-based technology enabling instant-on functionality without external configuration memory
• Single 5V power supply operation simplifying system power management requirements

Field Programmable Gate Array Applications

• Industrial control systems requiring reliable programmable logic
• Telecommunications interface circuits
• Test and measurement equipment logic functions

Field Programmable Gate Array Procurement Notes

Verify the specific suffix 'I' indicates the commercial temperature grade (0°C to 70°C) rather than industrial or military grades when sourcing replacements. Confirm the package type matches the 84-PLCC physical footprint. Check for RoHS compliance status as older ACT 2 devices may have varying environmental declarations depending on the manufacturing date code. Ensure the source document explicitly lists this part number to avoid confusion with similar ACT 1 or ACT 3 variants.

Field Programmable Gate Array Selection Notes

Select this component when a moderate gate count FPGA with non-volatile configuration is required. The 50 MHz speed grade suits applications not demanding high-frequency processing. Compare against the A1280A-PLG84C if a wider temperature range is unnecessary. Consider pin compatibility with existing PCB layouts designed for the 84-LCC/J-Lead form factor. Evaluate power consumption differences against newer low-power FPGA families if battery operation is a constraint.

Field Programmable Gate Array Part Context

This part belongs to the Microsemi ACT 2 family, which introduced Flash-based FPGA technology to the market. It succeeded the ACT 1 series, offering higher density and improved performance while maintaining backward compatibility with many ACT 1 design tools. The A1280A variant represents the highest density option within the 84-pin package constraints of that generation. It serves as a bridge between early CPLDs and modern high-performance FPGAs.

Field Programmable Gate Array Replacement Considerations

Direct pin-to-pin replacements are limited due to the discontinued nature of the ACT 2 family. Potential substitutes include the A1280A-PLG84C for identical electrical characteristics but different temperature ratings. Modern equivalents from Microsemi's SmartFusion or IGLOO families require significant redesign. Verify if the A1280A-1PLG84I is available as a lower-speed bin alternative.