A42MX09-PQ144I

Overview

The A42MX09-PQ144I is a Field Programmable Gate Array from the Microchip A42MX series, manufactured by Actel. It features 336 Configurable Logic Blocks and approximately 14,000 system gates. The device supports up to 70.2 MHz clock frequencies with a maximum CLB combination delay of 3.5 ns. It operates within a voltage range of 4.75 V to 5.25 V and includes mixed-voltage I/O capabilities supporting both 5.0V and 3.3V supplies. The component is housed in a PQFP-144 plastic package and is rated for an industrial operating temperature range of -40 °C to +85 °C.

Feature Summary

• Single-chip ASIC alternative consolidating logic from multiple PALs, CPLDs, and FPGAs
• Mixed-voltage operation allowing 5.0V or 3.3V core and I/O configurations
• Deterministic, user-controllable timing with up to 100% pin locking

Applications

• High-speed controllers and address decoding
• Peripheral bus interfaces
• DSP and co-processor functions

Procurement Notes

Verify the specific suffix 'I' confirms the industrial temperature grade (-40°C to +85°C). Confirm the package type matches the required PQFP-144 footprint. Check current lifecycle status as older Actel/Microsemi FPGA families may have limited availability or end-of-life implications. Ensure design tools support the legacy MX architecture.

Selection Notes

Select this model when 14,000 system gates and 336 CLBs are sufficient for the design. Choose the PQFP-144 package for surface-mount compatibility requiring 144 pins. Verify that the 70.2 MHz performance meets timing requirements. Consider mixed-voltage I/O needs if interfacing with both 5V and 3.3V systems.

Part Context

This part belongs to the A42MX family, which provides high-capacity programmable logic solutions. The A42MX09 variant specifically targets applications requiring moderate logic density with fast wide-decode circuitry. It serves as a drop-in replacement for complex discrete logic or smaller PLDs in industrial and commercial environments.

Replacement Considerations

Direct substitutes include other A42MX09 variants with different packages (e.g., A42MX09-PQG144) or gate counts within the same family. Cross-family migration to newer Microsemi SmartFusion or IGLOO devices may be necessary for long-term supply assurance.