A42MX09-TQ176

Overview

The A42MX09-TQ176 is a field-programmable gate array (FPGA) from the Microsemi MX family, housed in a 176-pin TQFP package. It provides 104 user I/O pins and contains approximately 14,000 system gates or 336 logic elements. The device supports dual-voltage operation with a core supply of 3.0V to 3.6V and I/O supplies ranging from 4.5V to 5.5V. Operating temperatures vary by suffix, typically spanning -40°C to +85°C for industrial grades. The component integrates up to 2.5 kbits of configurable dual-port SRAM and features deterministic timing with full pin locking capabilities.

Feature Summary

• Supports mixed-voltage operation allowing independent 3.3V core and 5.0V I/O configurations
• Enables 100% resource utilization and 100% pin locking for deterministic design implementation
• Integrates configurable dual-port SRAM for embedded memory applications
• Provides fast wide-decode circuitry suitable for address decoding and peripheral interfaces

Applications

• High-speed controllers and address decoding systems
• Peripheral bus interface implementations
• DSP and co-processor functions
• Single-chip ASIC alternatives for logic consolidation

Procurement Notes

Verify the specific temperature grade suffix associated with the part number, as the base model spans commercial, industrial, and automotive ranges. Confirm RoHS compliance status, as older Microsemi stock may not meet current environmental standards. Check for discontinuation notices, as many MX series devices have reached end-of-life status. Ensure the supplier provides valid traceability documentation for military or aerospace requirements if applicable.

Selection Notes

Select this component when designing systems requiring moderate logic density with high I/O counts in a compact surface-mount package. Compare against the A42MX09-VQG100I if a smaller 100-pin footprint is required, noting the reduction in available I/O pins. Consider the A42MX24 series if higher gate counts or additional embedded memory resources are necessary for the target application complexity.

Part Context

This FPGA belongs to the Microsemi 40MX and 42MX families, which were designed as cost-effective single-chip solutions to replace multiple PALs, CPLDs, and FPGAs. The MX architecture emphasizes high performance with low power consumption, targeting applications that require fast setup times and reliable operation in harsh environments. These devices bridge the gap between complex programmable logic and custom ASICs.

Replacement Considerations

Direct replacements include the A42MX09-FTQG176 for industrial temperature range applications. For commercial grade equivalents, verify availability of the A42MX09-1TQ176I. Note that these parts may be discontinued; consult official Microchip PCNs for obsolescence status before finalizing substitutions.