A42MX16-3PL84I

Overview

The A42MX16-3PL84I is a high-performance Field Programmable Gate Array (FPGA) from the Microchip MX family, designed as a single-chip ASIC alternative. It features 608 Logic Elements and 24,000 system gates, housed in an 84-pin PLCC package with 72 user-programmable I/Os. The device supports mixed-voltage operation at 5.0V or 3.3V for core and I/Os. It operates within a temperature range of -55°C to +125°C and includes up to 2.5 kbits of configurable dual-port SRAM.

Feature Summary

• Supports mixed-voltage operation with PCI-compliant I/Os for flexible integration
• Provides deterministic, user-controllable timing with up to 100% resource utilization
• Enables unique in-system diagnostic and verification capability via Silicon Explorer II

Applications

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

Procurement Notes

Verify the specific suffix '3' indicates the extended military temperature grade (-55°C to +125°C), as this differs from standard industrial variants. Confirm RoHS compliance status and moisture sensitivity level (MSL 3) prior to assembly. Check for official discontinuation notices or PCNs affecting availability.

Selection Notes

Select this model when military-grade thermal stability is required alongside high-density logic capacity. Ensure the design utilizes the 84-PLCC footprint constraints. Compare against the A42MX24 series if additional logic resources are needed, noting the difference in gate counts and I/O availability.

Part Context

This component belongs to the Microchip A42MX16 series, part of the broader MX FPGA family originally developed by Actel/Microsemi. These devices are engineered to replace multiple PALs, CPLDs, and FPGAs on a single chip, offering a cost-effective solution for consolidating complex logic designs.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing board layouts and software tools before considering alternative MX family members.