A42MX09-3TQ176I

Overview

The A42MX09-3TQ176I is a Field Programmable Gate Array (FPGA) from the Microsemi MX family, housed in a 176-TQFP package. It features 14,000 system gates and 336 Logic Elements. The device supports mixed-voltage operation with core voltages of 3V to 3.6V and I/O voltages of 4.5V to 5.5V. It offers 104 user-programmable I/O pins and operates within an industrial temperature range of -40°C to +85°C. The component includes up to 2.5 kbits of configurable dual-port SRAM and supports deterministic timing with 100% resource utilization.

Feature Summary

• Single-chip ASIC alternative providing high performance and consolidated logic for PALS, CPLDs, and FPGAs.
• Mixed-voltage operation capability supporting both 5.0V and 3.3V core and I/O configurations.
• Deterministic, user-controllable timing with up to 100% pin locking and resource utilization.
• Integrated diagnostic and verification capability via Silicon Explorer II.

Applications

• High-speed controllers
• Address decoding circuits
• Peripheral bus interfaces
• DSP functions
• Co-processor applications

Procurement Notes

Verify the specific speed grade suffix '3' against the required timing specifications for the target design. Confirm that the 176-TQFP package dimensions align with the PCB footprint requirements. Check for RoHS compliance status as historical data indicates variations across the MX family production runs. Ensure moisture sensitivity level handling procedures are followed during assembly.

Selection Notes

Select this model when 14,000 system gates and 104 I/Os are sufficient for the design complexity. The industrial temperature range (-40°C to +85°C) suits automotive or outdoor environments. Consider the 176-TQFP package if surface-mount space allows. Verify compatibility with existing development tools like Libero SoC for programming and configuration.

Part Context

This component belongs to the Microsemi 40MX and 42MX FPGA families, designed as cost-effective solutions for 5V systems. These devices consolidate logic previously implemented in multiple discrete components. The MX series is known for fast wide-decode circuitry and high-density programmability, serving as a bridge between complex ASICs and simpler programmable logic devices.

Replacement Considerations

Direct substitutes include other variants within the A42MX09 series such as A42MX09-1TQ176I or A42MX09-FTQG176, depending on the required speed grade and temperature rating. Cross-family migration to newer Microchip PolarFire or IGLOO2 devices may be necessary for long-term supply assurance, though pinouts and logic resources will differ significantly.