A40MX04-1PQ100

Overview

The A40MX04-1PQ100 is a field-programmable gate array (FPGA) from the Microchip Actel MX family, designed as a high-capacity single-chip ASIC alternative. It features 295 configurable logic blocks (CLBs) and approximately 2000 equivalent system gates. The device supports mixed-voltage operation with core and I/O voltages of either 3.3V or 5.0V, ensuring PCI-compliant I/O levels. It utilizes flash-based nonvolatile technology for instant-on functionality and reprogrammability. The component is housed in a 100-pin plastic quad flat package (PQFP), offering up to 69 user-programmable I/O pins for flexible interface integration.

Feature Summary

• Flash-based nonvolatile architecture providing instant power-up configuration without external memory requirements.
• Mixed-voltage capability supporting both 3.3V and 5.0V core and I/O supply configurations.
• Deterministic timing characteristics with user-controllable delays and pin locking capabilities.
• High resource utilization allowing 100% logic block usage and complete pin assignment flexibility.

Applications

• Replacement for complex programmable logic devices (CPLDs) and standard ASICs in embedded systems.
• Industrial control applications requiring deterministic timing and mixed-voltage interfacing.
• Automotive electronics utilizing industrial temperature range components.
• Military and aerospace systems requiring radiation-tolerant or high-reliability programmable logic solutions.

Procurement Notes

Verify the specific suffix code against official Microchip documentation to confirm voltage grade, temperature range, and package variant. Ensure compatibility with existing PCB footprints for the 100-pin PQFP form factor. Confirm moisture sensitivity level handling procedures during assembly to prevent package damage. Cross-reference the manufacturer part number with current datasheet revisions to validate active status and design-in specifications.

Selection Notes

Select this model when a moderate density FPGA with instant-on capability is required. The 295 CLB count suits designs needing up to 2000 system gates. Choose the PQFP-100 package for through-hole or standard surface-mount assembly needs. Verify that the 3.3V or 5.0V mixed-voltage option aligns with the target system's I/O standards. Consider the MX family's radiation tolerance if operating in harsh environments.

Part Context

This component belongs to the Microchip Actel MX series, which bridges the gap between simple CPLDs and high-end FPGAs. The MX family is characterized by its flash-based technology, eliminating the need for external configuration PROMs. It serves as a drop-in replacement for many legacy ASIC designs, offering the flexibility of programmable logic with the simplicity of fixed-function chips.

Replacement Considerations

Direct substitutes within the same family include other A40MX04 variants with different suffixes indicating package or temperature changes. For higher density, consider A42MX series models. For lower density, A40MX02 may suffice. Verify pinout compatibility before substituting, as package variations exist within the MX lineup.