A42MX24-3PL84

Overview

The A42MX24-3PL84 is a Field Programmable Gate Array (FPGA) from the Microchip MX Automotive Family. It features 36,000 system gates and 912 Configurable Logic Blocks (CLBs). The device supports mixed-voltage operation with a core voltage of 3.3V or 5V and I/Os compatible with PCI standards. It includes up to 2.5 kbits of configurable dual-port SRAM and fast wide-decode circuitry. The component is housed in an 84-pin Plastic Leaded Chip Carrier (PLCC) package.

Feature Summary

• Single-chip ASIC alternative for automotive applications
• Deterministic, user-controllable timing
• Supports 100% resource utilization and pin fixing
• Unique in-system diagnostic capability

Applications

• Automotive electronic control units
• Industrial automation controllers
• Mixed-signal signal processing

Procurement Notes

Verify the specific suffix against official datasheets to confirm temperature grade and RoHS compliance status. Confirm package integrity upon receipt as moisture sensitivity levels may require baking prior to assembly. Check for discontinuation notices as this family has faced end-of-life notifications from the manufacturer.

Selection Notes

Select this model when 36,000 system gates are required within an 84-pin PLCC footprint. Ensure design requirements align with the 3.3V or 5V mixed-voltage capabilities. Verify that the deterministic timing characteristics meet the system's clock constraints compared to other FPGA families.

Part Context

This part belongs to the Actel/Microchip MX family of flash-based FPGAs. These devices are designed to replace complex discrete logic and standard ASICs. The family offers non-volatile configuration memory, eliminating the need for external configuration PROMs typically found in SRAM-based FPGAs.

Replacement Considerations

Direct replacements include other variants within the A42MX24 series such as A42MX24-PL84A or A42MX24-1PL84X79, provided pinouts and electrical specifications match. Cross-family migration to newer Microchip PolarFire or IGLOO2 series requires schematic and code adaptation.