A42MX09-1TQ176M

Overview

The A42MX09-1TQ176M is a high-performance Field Programmable Gate Array (FPGA) from the Microsemi MX family, designed as a single-chip ASIC alternative. It features 14,000 system gates and 336 Logic Elements within a 176-pin Thin Quad Flatpack package. The device supports dual voltage operation with a core supply of 3V to 3.6V and I/O supplies ranging from 4.5V to 5.5V. It offers up to 104 user-programmable I/O pins and includes up to 2.5 kbits of configurable dual-port SRAM for embedded memory functions.

Feature Summary

• Provides high-density programmable logic suitable for replacing multiple discrete PALs, CPLDs, or FPGAs in a single chip solution.
• Supports mixed-voltage operation allowing flexible interface compatibility between 3.3V and 5.0V domains.
• Integrates configurable dual-port SRAM to facilitate data buffering and FIFO applications without external memory.
• Features deterministic timing and pin locking capabilities to ensure predictable signal propagation paths.

Applications

• High-speed controller implementations requiring low latency and parallel processing.
• Peripheral bus interfaces including legacy protocol translation and bridge circuits.
• DSP acceleration and co-processor functions for signal processing tasks.
• Address decoding logic for complex memory mapping systems.

Procurement Notes

Verify the specific suffix 'M' against official Microchip documentation to confirm military-grade qualification status, as standard commercial variants typically use 'I'. Confirm RoHS compliance status, noting that older MX series devices may have non-compliant versions. Check for active discontinuation notices or PCNs affecting production availability. Ensure design-in tools support the specific package type and voltage requirements.

Selection Notes

Select this component when a moderate gate count of 14,000 is sufficient for logic consolidation. Choose the 176-TQFP package if space constraints allow for larger footprints compared to smaller QFP options. Verify that the required I/O count fits within the 104 available pins. Consider the dual-voltage capability if interfacing with both 3.3V and 5V peripherals is necessary.

Part Context

This part belongs to the Microsemi 40MX and 42MX FPGA families, which are established solutions for cost-effective programmable logic. These devices are known for their high performance at 5V operation and are often used to reduce board space and power consumption by integrating functions previously handled by multiple standard logic components.

Replacement Considerations

Direct replacements include other variants within the A42MX09 series such as A42MX09-1TQ176I for commercial temperature grades. For higher density needs, consider the A42MX16 series. Legacy equivalents in discrete logic may require significant redesign due to the integrated SRAM and flexibility of the FPGA architecture.