A42MX24-PL84

Overview

The A42MX24-PL84A is a Field Programmable Gate Array (FPGA) from the Microchip MX Automotive Family, designed as a single-chip ASIC alternative for automotive applications. It features 36,000 system gates and 912 Configurable Logic Blocks (CLBs). The device utilizes CMOS technology and is housed in an 84-pin Plastic Quad Flat Package (PQCC84), also identified as LCC-84. It supports mixed-voltage operation with 5.0V or 3.3V supplies for core and I/Os, ensuring PCI-compliant interface compatibility. Key architectural elements include up to 2.5 kbits of configurable dual-port SRAM, fast wide-decode circuitry, and deterministic user-controllable timing.

Feature Summary

• Single-chip ASIC alternative architecture supporting up to 100% resource utilization and pin fixing
• Mixed-voltage operation capability allowing 5.0V or 3.3V supply configurations for core and I/Os
• Integrated diagnostic capability via Silicon Explorer II for in-system verification
• Support for IEEE Standard 1149.1 JTAG boundary scan testing and verification

Applications

• Automotive electronic systems requiring high reliability and low power consumption
• Designs necessitating a single-chip replacement for complex ASIC implementations
• Applications utilizing mixed-voltage interfaces with PCI compliance requirements

Procurement Notes

Verify component authenticity through authorized Microchip Technology distributors. Confirm RoHS compliance status, as specific suffixes may indicate non-compliant variants. Check for discontinuation notices, as older MX family parts may have limited availability. Ensure packaging specifications match the required PQCC84 form factor for PCB integration.

Selection Notes

Select this model when 36,000 system gates and 912 CLBs are sufficient for the logic density requirements. Consider the PL84 package only if an 84-pin footprint is mandatory. Evaluate the 5.0V/3.3V mixed-voltage support against interface voltage levels. Compare against other MX family members like A42MX09 or A42MX36 if gate counts or I/O pins differ significantly.

Part Context

This component belongs to the Microchip MX FPGA family, which bridges the gap between standard programmable logic and custom ASICs. The series is characterized by its flash-based non-volatile technology, enabling instant-on functionality. The A42MX24 variant specifically targets mid-range complexity designs within industrial and automotive sectors.

Replacement Considerations

Direct substitutes include other A42MX24 variants with different packages or temperature grades, such as A42MX24-PQ208A or A42MX24-PL84I. Verify that any replacement maintains the same 36,000 gate count and 84-pin configuration to ensure mechanical and logical compatibility.