A42MX16-TQ176

Overview

The A42MX16-TQ176 is a Field Programmable Gate Array (FPGA) from the Microsemi MX family, designed as a high-capacity single-chip ASIC alternative. It features 24,000 system gates and 295 Configurable Logic Blocks (CLBs). The device supports mixed-voltage operation with supply ranges of 3V to 3.6V or 4.5V to 5.5V for core and I/Os. It utilizes a 176-LQFP package with 140 user-programmable I/O pins. Key performance metrics include a maximum clock frequency of 48.24 MHz and a CLB delay of 3.72 ns. The component operates within temperature ranges extending up to +125°C depending on the specific suffix variant.

Feature Summary

• Supports mixed-voltage operation for both core and I/Os, compatible with PCI-compliant interfaces.
• Integrates up to 2.5 kbits of configurable dual-port SRAM for data storage and processing.
• Provides deterministic, user-controllable timing with up to 100% resource utilization and pin locking capabilities.

Applications

• High-speed controllers and address decoding logic
• Peripheral bus interface implementations
• DSP and co-processor functions

Procurement Notes

Verify the exact suffix of the part number, as variants such as -1TQ176I or -2TQG176 differ in speed grade, operating temperature range, and RoHS compliance status. Confirm current availability, as many MX series components have reached end-of-life status. Ensure that the selected package matches the PCB footprint requirements for the 176-pin LQFP form factor.

Selection Notes

Select based on required I/O count and voltage levels, as this device offers 140 programmable pins. Consider the speed grade suffix to meet timing constraints, with options ranging from standard to faster performance tiers. Evaluate thermal requirements against the available commercial, industrial, and military temperature ratings. Verify if the integrated SRAM capacity meets system memory needs without external components.

Part Context

This component belongs to the Microsemi 40MX and 42MX FPGA families, which are positioned as cost-effective solutions for replacing multiple PALs, CPLDs, and FPGAs. The MX series is known for consolidating logic into single-chip designs to shorten development cycles. These devices serve as direct replacements for complex discrete logic circuits in embedded systems.

Replacement Considerations

Publicly confirmed substitute part numbers for this specific model were not identified in the provided documentation. Users should consult official Microchip discontinuation notices for recommended migration paths to newer FPGA families.