A42MX16-1PQ208M

Overview

The A42MX16-1PQ208M is a Field Programmable Gate Array (FPGA) from the Microchip MX series, designed as a high-capacity single-chip ASIC alternative. It features 3,000 system gates and 59 configurable logic blocks (CLBs). The device supports mixed-voltage operation with I/Os compliant with PCI standards. It includes up to 2.5 kbits of configurable dual-port SRAM for data storage and processing tasks. The component operates within a supply voltage range of 3V to 3.6V or 4.75V to 5.25V. It is housed in a 208-pin PQFP package suitable for surface mount applications.

Feature Summary

• Provides a cost-effective single-chip solution to consolidate logic previously implemented in multiple PALs, CPLDs, and FPGAs.
• Supports mixed-voltage operation allowing flexible integration of 5.0V and 3.3V core and I/O domains.
• Includes fast wide-decode circuitry and deterministic, user-controllable timing for precise design implementation.
• Offers unique in-system diagnostic and verification capabilities through Silicon Explorer II technology.

Applications

• High-speed controllers and address decoding systems
• Peripheral bus interfaces requiring protocol translation
• DSP and co-processor functions in embedded systems

Procurement Notes

Verify the specific suffix 'M' against official Microchip documentation to confirm if it denotes a military-grade temperature rating or specific packaging variant. Check for End-of-Life (EOL) notices or Product Change Notifications (PCN) regarding availability, as older MX series components may have limited stock or discontinued status. Ensure compatibility with existing PCB footprints for the 208-PQFP package.

Selection Notes

Select this model when designing systems that require moderate logic density with significant I/O flexibility. It is suitable for replacing legacy discrete logic or smaller PLDs where pin locking and resource utilization are critical. Consider the mixed-voltage capability if interfacing with both 3.3V and 5V peripherals without additional level shifters.

Part Context

This component belongs to the Microsemi/Microchip 40MX and 42MX FPGA families, which were established as robust solutions for industrial and commercial applications. These devices are known for their non-volatile flash-based architecture, allowing instant-on functionality without external configuration memory. The family bridges the gap between complex CPLDs and larger FPGAs.

Replacement Considerations

Direct replacements include other variants within the A42MX16 family such as A42MX16-1PQ208 or A42MX16-2PQ208, depending on speed grade requirements. For higher capacity needs, the A42MX36 series offers increased gate counts while maintaining similar interface characteristics. Verify pinout compatibility before substituting.