A42MX09-2TQ176

Overview

The A42MX09-2TQ176 is a Field Programmable Gate Array (FPGA) from the Microsemi MX family, designed as a single-chip ASIC alternative. It features 14,000 system gates and 684 Configurable Logic Blocks (CLBs). The device supports dual-voltage operation with core supply voltages of 3V to 3.6V and I/O supply voltages of 4.5V to 5.5V. It is housed in a 176-LQFP package with 104 user-programmable I/O pins. The industrial temperature grade variant operates between -40°C and +85°C.

Feature Summary

• Supports mixed-voltage operation allowing independent 3.3V core and 5.0V I/O supplies for compatibility with legacy systems.
• Provides deterministic timing through 100% pin locking capabilities, ensuring predictable signal propagation paths.
• Integrates up to 2.5 kbits of configurable dual-port SRAM for embedded memory applications.

Applications

• High-speed controllers and address decoding logic
• Peripheral bus interfaces including PCI-compliant designs
• DSP and co-processor functions

Procurement Notes

Verify component authenticity due to discontinuation status. Check for Product Change Notifications (PCN) regarding manufacturing origin or material changes. Confirm RoHS compliance status, as older batches may not meet current environmental standards. Validate moisture sensitivity level handling requirements during assembly.

Selection Notes

Select this model for designs requiring 14,000 system gates in a 176-pin QFP form factor. Ensure voltage levels match the specific speed grade requirements. Consider the 176-TQFP package dimensions for PCB layout constraints. Verify that the 104 available I/O pins satisfy interface count needs.

Part Context

This part belongs to the Actel MX family, which bridges the gap between CPLDs and FPGAs. The A42MX09 specifically targets cost-sensitive applications needing moderate logic density. It serves as a drop-in replacement for complex PALs and CPLDs while offering reprogrammability.

Replacement Considerations

Direct substitutes include other MX family members like the A42MX09-1TQ176I or A42MX09-3TQ176I, differing primarily in speed grades. Alternative packages such as PQFP or TQFP variants with identical gate counts should be evaluated for pin compatibility.