A42MX36-1CQ208B

Overview

The A42MX36-1CQ208B is a non-volatile Flash FPGA from the Microchip MX family, designed as a high-capacity single-chip ASIC alternative. It features approximately 54,000 system gates and 2,438 configurable logic blocks (CLBs). The device supports mixed-voltage operation with I/Os compatible with 3.3V or 5.0V standards, including PCI compliance. It integrates up to 2.5 kbits of configurable dual-port SRAM for embedded memory applications. The component utilizes a solder-free Flash architecture, eliminating the need for external configuration memories. It is housed in a 208-pin CQFP package and operates within a commercial temperature range.

Feature Summary

• Non-volatile Flash-based architecture provides instant-on functionality without external configuration devices.
• Supports mixed-voltage I/O operations compatible with both 3.3V and 5.0V logic levels.
• Integrates configurable dual-port SRAM for efficient data buffering and FIFO implementations.
• Features fast wide-decode circuitry and high-performance clock-to-output timing.

Applications

• High-density logic replacement for complex ASIC designs.
• Industrial control systems requiring mixed-voltage interface compatibility.
• Embedded memory applications utilizing internal dual-port SRAM.
• Military and aerospace systems utilizing qualified ceramic variants.

Procurement Notes

Verify the specific suffix requirements carefully, as the MX family includes various package and speed grades. Confirm that the commercial plastic package variant meets the thermal and environmental specifications for the target deployment. Check for obsolescence notices, as older Flash FPGA models may have limited production availability or end-of-life status depending on the manufacturing date code.

Selection Notes

Select this model when a non-volatile FPGA with immediate power-up readiness is required. Ensure the design fits within the 54,000 gate capacity and 2.5 kbit SRAM limits. Verify that the 208-pin CQFP footprint matches the PCB layout constraints. Consider the -1 speed grade if higher performance is needed compared to slower variants in the same package.

Part Context

This component belongs to the Microsemi/Microchip MX series of Flash FPGAs, which are known for their radiation tolerance and non-volatile nature. The A42MX36 represents the mid-range capacity within this family, bridging the gap between smaller 16k/24k gate devices and larger 60k+ gate options. It shares architectural similarities with the ProASICPlus series but offers enhanced performance and embedded memory resources.

Replacement Considerations

Direct pin-compatible replacements include other speed grades of the A42MX36 series, such as the A42MX36-1FCQ208 or A42MX36-3FCQ208, provided the package type matches. For legacy Actel parts, the A42MX36PQG208 may serve as a functional equivalent in different packaging. Always verify electrical characteristics against the specific application requirements before substitution.