A1240A-PQ144M

Field Programmable Gate Array Overview

The A1240A-PQ144M is a Field Programmable Gate Array (FPGA) belonging to the ACT 2 family manufactured by Microsemi Corporation. It features an architecture comprising 1232 Configurable Logic Blocks (CLBs) and approximately 8000 equivalent gates, providing logic density comparable to up to 200 TTL packages or eighty 20-pin PALs. The device operates at a maximum clock frequency of 70 MHz and supports a supply voltage range of 4.5 V to 5.5 V with a nominal rating of 5 V. It utilizes CMOS technology and is housed in a PQFP-144 package with 144 user I/O pins. The component is designated as End-of-Life (EOL) / Lifebuy status.

Field Programmable Gate Array Feature Summary

• ACT 2 antifuse-based FPGA architecture offering high-density programmable logic
• Support for wide-input combinatorial functions and single-module sequence operations
• Access to a design library containing over 500 macro functions
• Military temperature grade capability with extended operating ranges

Field Programmable Gate Array Applications

• Replacement for legacy discrete TTL logic circuits
• Replacement for complex Programmable Array Logic (PAL) devices
• Military and aerospace embedded systems requiring radiation-hardened or high-reliability logic
• Industrial control systems utilizing standard 5V logic interfaces

Field Programmable Gate Array Procurement Notes

This component is officially classified as End-of-Life (EOL) with Lifebuy availability. Verification of authenticity is critical due to the discontinued status. Buyers must confirm the specific suffix 'M' corresponds to the military temperature grade and ceramic/plastic package variant as defined in the official Microsemi datasheet. Ensure compliance with export control classifications such as ECCN 3A991D if applicable to the transaction jurisdiction.

Field Programmable Gate Array Selection Notes

Select this part when migrating designs from discrete TTL or PAL components to a single-chip solution. The 1232 CLB count and 70 MHz performance suit moderate complexity logic applications. Verify that the system power supply strictly adheres to the 4.5 V to 5.5 V range. Consider the PQFP-144 footprint during PCB layout. For higher capacity or lower power requirements, evaluate the ProASIC3 family or newer Microsemi FPGA lines.

Field Programmable Gate Array Part Context

The A1240A-PQ144M is part of the ACT 2 family, which succeeded earlier Actel PLD offerings. This family bridges the gap between traditional PLDs and modern FPGAs, utilizing antifuse technology for permanent configuration. It shares architectural similarities with the A1240A-VQ176B and A1280A series but differs in pin count and package type. The ACT 2 family was designed to replace large volumes of discrete logic in cost-sensitive and high-reliability applications.

Field Programmable Gate Array Replacement Considerations

Direct pin-compatible replacements are not available due to the EOL status. Functional equivalents may include other ACT 2 family members like the A1280A if pin counts allow, or migration to the ProASIC3 Flash family for new designs. Verify that any substitute maintains the required 5V I/O levels and speed grade.