A42MX09-3PLG84

Overview

The A42MX09-3PLG84 is a Field Programmable Gate Array (FPGA) from the Microchip MX family, designed as a single-chip ASIC alternative for automotive applications. It features 14,000 system gates and 684 Adaptive Logic Modules (ALMs). The device operates within a supply voltage range of 4.5 V to 5.5 V and supports an industrial temperature range from -40°C to +85°C. It is housed in a PLCC-84 surface-mount package with 72 I/O pins. Key architectural elements include fast wide-decode circuitry, synthesis-friendly logic, and support for up to 2.5 kbits of configurable dual-port SRAM.

Feature Summary

• Provides deterministic, user-controllable timing suitable for safety-critical systems.
• Supports 100% resource utilization and pin fixing for direct ASIC design methodology compatibility.
• Includes unique in-system diagnostic capability via Silicon Explorer II technology.

Applications

• Automotive electronic control units requiring high reliability.
• Industrial motor control and automation systems.
• Aerospace and defense avionics subsystems.

Procurement Notes

Verify the specific suffix '3' indicates the extended industrial temperature range (-40°C to +85°C) compared to commercial variants. Confirm RoHS compliance status through official Microchip documentation, as older Actel-era parts may have varying environmental declarations. Ensure the PLCC-84 package availability aligns with current manufacturing lifecycle stages.

Selection Notes

Select this model when a robust, radiation-tolerant FPGA with deterministic timing is required for automotive or industrial environments. Compare against the A42MX series capacity requirements; ensure the 14k gate count and 72 I/Os meet the design complexity. Verify that the 5V operation matches the system power rails without level shifting needs.

Part Context

This component belongs to the Microchip MX FPGA family, originally developed by Actel before its acquisition. The A42MX series is distinguished by its anti-fuse technology, offering non-volatile configuration and high security. It serves as a bridge between traditional CPLDs and modern SRAM-based FPGAs, emphasizing reliability over raw density.

Replacement Considerations

Direct replacements are limited due to the niche automotive focus. Consider the A42MX09-PLG84 for commercial temperature ranges only. For newer designs, evaluate Microchip's PolarFire or IGLOO families, though these require significant architecture migration.