A42MX16-FTQ176

Overview

The A42MX16-FTQ176 is a Field Programmable Gate Array (FPGA) belonging to the Microsemi MX family. It features 608 Configurable Logic Blocks (CLBs) and approximately 24,000 system gates. The device supports up to 140 user-programmable I/O pins and operates with a maximum clock frequency of 117 MHz. It utilizes a 176-pin Thin Quad Flat Package (TQFP) with a 24x24 mm footprint. Power supply requirements include 3V to 3.6V or 4.5V to 5.5V ranges. The component supports mixed-voltage operation for core and I/Os.

Feature Summary

• Provides high-capacity single-chip ASIC alternative capabilities with up to 54,000 system gates across the family.
• Integrates fast wide-decode circuitry and up to 2.5 kbits of configurable dual-port SRAM.
• Supports deterministic, user-controllable timing with up to 100% resource utilization and pin locking.
• Enables mixed-voltage operation for core and I/Os with PCI-compliant interface support.

Applications

• High-speed controllers
• Address decoding systems
• Peripheral bus interfaces
• DSP and co-processor functions

Procurement Notes

Verify the specific suffix 'FTQ' against official Microchip documentation to confirm package type and temperature grade. Confirm current production status as many MX series devices have reached end-of-life. Check for RoHS compliance variations between original Actel and Microchip manufacturing eras. Validate moisture sensitivity level ratings prior to PCB assembly planning.

Selection Notes

Compare the 117 MHz performance and 140 I/O count against design requirements. Ensure the 176-TQFP package fits the board layout constraints. Verify voltage compatibility with the target system's 3.3V or 5V logic levels. Consider the availability of Silicon Explorer II tools for in-system diagnostic verification during development.

Part Context

This component belongs to the A42MX16 series within the broader 40MX and 42MX FPGA families. These devices were originally developed by Actel and later continued by Microsemi and Microchip Technology. The series is designed to consolidate logic previously implemented in multiple PALs, CPLDs, and FPGs into a single chip solution.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material. Users should consult Microchip official discontinuation notices or authorized distributor cross-reference lists for valid replacements.