A42MX36-CQ256M

Overview

The A42MX36-CQ256M is a Field Programmable Gate Array (FPGA) from the Microchip MX series, manufactured by Microchip Technology. It features 54,000 system gates and 176 I/Os within a 256-pin CQFP package. The device operates on supply voltages of 3V to 3.6V or 4.75V to 5.25V, with an industrial temperature range of -40°C to +85°C. It includes 2560 bits of embedded RAM and utilizes CMOS technology for surface mount installation.

Feature Summary

• Non-volatile flash-based architecture enabling instant-on functionality without external configuration memory.
• Supports both 3.3V and 5V power supply domains for flexible interface compatibility.
• Integrated security features including bitstream encryption and password protection.

Applications

• Industrial control systems requiring robust logic processing.
• Automotive electronics operating in harsh thermal environments.
• Telecommunications infrastructure equipment.

Procurement Notes

Verify component authenticity through authorized Microchip distributors due to high counterfeit risks in legacy FPGA markets. Confirm RoHS compliance status and check for specific manufacturing date codes if long-term availability is required. Review Product Change Notices (PCNs) for any assembly site updates or material substitutions that may affect qualification.

Selection Notes

Compare against A42MX36 variants with different pin counts or temperature grades based on board space constraints. Ensure voltage levels match the target application's power rails. Consider the 256-pin CQFP package dimensions for PCB layout planning and verify thermal dissipation requirements for the specific enclosure design.

Part Context

This component belongs to the Actel MX family, now under Microchip Technology, known for low-power, non-volatile FPGAs. It serves as a successor to earlier CPLD technologies, offering higher density and reprogrammability while maintaining the benefits of flash-based configuration.

Replacement Considerations

Direct substitutes include other A42MX36 variants such as A42MX36-1PQG208 or A42MX36-2CQ256I, depending on package and speed grade requirements. Verify pin-to-pin compatibility and electrical specifications before replacement.