A42MX09-TQ176I

Overview

The A42MX09-TQ176I is a high-density Field Programmable Gate Array (FPGA) belonging to the Microsemi MX family. It provides approximately 14,000 system gates and 684 Configurable Logic Blocks (CLBs). The device supports mixed-voltage operation with core and I/O options for 3.3V or 5.0V supplies. It features up to 104 user-programmable I/O pins and integrates up to 2.5 kbits of configurable dual-port SRAM. The component operates within a temperature range of -40°C to +85°C and utilizes a 176-pin Thin Quad Flatpack (TQFP) surface-mount package.

Feature Summary

• Supports mixed-voltage operation for both core logic and I/O interfaces, accommodating 3.3V or 5.0V supply requirements.
• Integrates configurable dual-port SRAM to facilitate fast data buffering and FIFO applications.
• Offers deterministic timing through user-controllable delay paths and pin locking capabilities.
• Includes unique in-system diagnostic and verification capabilities via Silicon Explorer II technology.

Applications

• High-speed controllers and address decoding systems
• Peripheral bus interface implementations
• Digital Signal Processing (DSP) acceleration
• Co-processor functions

Procurement Notes

Verify the specific suffix 'TQ176' against official datasheets to confirm the 176-pin TQFP package variant. Confirm the industrial temperature grade (-40°C to +85°C) matches the design requirements. Check for RoHS compliance status as older revisions may differ. Ensure ESD handling protocols are followed during assembly due to moisture sensitivity level 3 classification.

Selection Notes

Select this model when a single-chip ASIC alternative is required for designs needing around 14,000 system gates. It is suitable for replacing multiple PALs, CPLDs, or FPGAs to reduce board space. Consider the 176-pin footprint constraints and verify that the available I/O count meets the interface requirements. Evaluate the need for embedded SRAM versus external memory solutions.

Part Context

This component is part of the Microsemi 40MX and 42MX FPGA families, which are designed for cost-effective, high-performance logic consolidation. The MX series allows designers to integrate complex logic into a single chip, shortening development cycles. These devices are known for their ability to handle wide-decode circuitry and provide high-speed performance comparable to dedicated ASICs.

Replacement Considerations

Direct substitutes include other variants within the A42MX09 series with different packages, such as A42MX09-PQG100I or A42MX09-1PGG100I, provided the pin count and gate density are sufficient. Cross-family replacements from Actel or Microchip should be evaluated based on logic capacity and voltage compatibility.