A42MX16-PLG84M

Overview

The A42MX16-PLG84M 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 24,000 system gates and supports mixed-voltage operation with supply voltages ranging from 3V to 3.6V and 4.5V to 5.5V. The device is housed in an 84-LCC (J-Lead) package, providing 72 user-programmable I/O pins. It operates within a temperature range of -55°C to 125°C (TC). Key specifications include up to 2.5 kbits of configurable dual-port SRAM, fast wide-decode circuitry, and support for IEEE Standard 1149.1 JTAG boundary scan testing.

Feature Summary

• Single-chip solution integrating logic previously requiring multiple PALs, CPLDs, or FPGAs
• Supports deterministic, user-controllable timing for precise design integration
• Enables up to 100% resource utilization and 100% pin locking capabilities
• Includes unique in-system diagnostic capability via Silicon Explorer II

Applications

• Automotive electronic systems requiring high reliability
• High-speed controllers and address decoding functions
• Peripheral bus interfaces and DSP co-processor roles

Procurement Notes

Verify component authenticity through authorized Microchip distributors or direct manufacturer channels. Confirm RoHS compliance status, as specific variants may differ. Check for End-of-Life (EOL) notices or Production Change Notifications (PCN) regarding availability. Ensure packaging integrity matches standard tube quantities. Validate that the specific suffix corresponds to the required temperature grade and package variant for your application.

Selection Notes

Select this model when designing for automotive environments necessitating extended temperature ranges down to -55°C. Choose based on the requirement for 24,000 system gates and 72 I/Os in an LCC package. Consider the mixed-voltage core and I/O options if interfacing with both 3.3V and 5V logic levels. Evaluate the need for JTAG boundary scan support for manufacturing testability.

Part Context

This component belongs to the Actel/Microchip MX family of flash-based FPGAs, originally developed by Actel Corporation before its acquisition by Microsemi and subsequently Microchip Technology. The MX series is distinguished by its non-volatile flash technology, eliminating the need for external configuration memory. This specific part represents a mid-range density option within the automotive-grade subset of the portfolio.

Replacement Considerations

Direct replacements are limited due to the specific package and automotive rating. Potential alternatives within the same family include other A42MX16 variants with different packages (e.g., TQFP, PQFP) or gate counts (A42MX24, A42MX08), provided pin compatibility and thermal requirements are met. Cross-family migration to newer Microchip PolarFire or Igloo devices requires significant schematic and firmware redesign.