A1240A-PLG84I

Field Programmable Gate Array Overview

The A1240A-PLG84I is an Actel ACT 3 series Field Programmable Gate Array (FPGA) manufactured by Microsemi Corporation. It features a CMOS technology with 10,000 gate array equivalent gates and 25,000 PLD equivalent gates. The device is housed in an 84-pin PLCC package and supports up to 186 MHz on-chip performance with clock-to-output times as low as 9.0 ns for the -1 speed grade. It includes four fast, low-skew clock networks and up to 228 user-programmable I/Os.

Field Programmable Gate Array Feature Summary

• Highly predictable performance with 100% automatic place-and-route capabilities
• Four fast, low-skew clock networks for precise timing control
• Supports up to 228 user-programmable I/O pins for flexible integration

Field Programmable Gate Array Applications

• High-speed system logic integration requiring deterministic timing
• Complex digital signal processing applications
• Custom ASIC prototyping and implementation

Field Programmable Gate Array Procurement Notes

Verify the specific speed grade suffix, as the base model number may correspond to different performance tiers. Confirm the package type matches the required footprint. Check for end-of-life status or last-time-buy notifications from the manufacturer. Ensure compatibility with existing design tools and programming cables. Validate environmental ratings against application requirements.

Field Programmable Gate Array Selection Notes

Select this component when high gate density and predictable routing are required. Consider the -1 speed grade for maximum performance needs. Evaluate pin count requirements against the available I/O resources. Compare power consumption and thermal characteristics with alternative FPGA families. Verify toolchain support for the ACT 3 architecture.

Field Programmable Gate Array Part Context

This part belongs to the Accelerator Series FPGAs within the ACT 3 family. It represents a mid-range solution offering significant logic capacity compared to earlier Actel devices. The ACT 3 series was designed to replace complex discrete logic solutions. It utilizes antifuse technology for permanent configuration.

Field Programmable Gate Array Replacement Considerations

Direct replacements may be limited due to the age of the ACT 3 family. Consider migrating to newer Microsemi FPGA families such as IGLOO or SmartFusion for modern alternatives. Verify pinout compatibility if substituting with similar gate count devices. Assess design re-verification requirements for any architectural changes.