A42MX09-TQ176A

Overview

The A42MX09-TQ176A is a high-capacity Field Programmable Gate Array (FPGA) from the Microsemi MX family, designed as a single-chip ASIC alternative. It features approximately 14,000 system gates and 684 Configurable Logic Blocks (CLBs). The device supports mixed-voltage operation with supply ranges of 3V to 3.6V or 4.5V to 5.5V. It integrates up to 2.5 kbits of configurable dual-port SRAM and offers up to 104 user-programmable I/O pins in a 176-pin TQFP package. Performance specifications include a maximum clock frequency of 250 MHz and a typical CLB combinational delay of 1.6 ns.

Feature Summary

• Supports mixed-voltage operation for both core and I/Os, ensuring PCI-compliant compatibility.
• Integrates configurable dual-port SRAM to facilitate fast data buffering and FIFO applications.
• Provides deterministic, user-controllable timing with up to 100% resource utilization and pin locking capabilities.
• Includes unique in-system diagnostic and verification capability through Silicon Explorer II.

Applications

• High-speed controllers and address decoding logic
• Peripheral bus interfaces and DSP co-processor functions
• Replacement for multiple PALs, CPLDs, and FPGAs in consolidated designs

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheets. Confirm RoHS compliance status, as older MX series variants may not meet current environmental standards. Ensure proper handling procedures are followed due to Moisture Sensitivity Level 3 classification. Validate that the specific suffix matches the required voltage and temperature grades for your application environment.

Selection Notes

Select this model when a cost-effective FPGA solution replacing complex discrete logic is required. Consider the 176-pin TQFP package for surface-mount assembly constraints. Evaluate the 14,000 gate count against design complexity to ensure sufficient resources. Verify that the 250 MHz performance meets signal processing requirements before finalizing the part selection.

Part Context

The A42MX09 belongs to the Microsemi 40MX and 42MX FPGA families, which are positioned as high-capacity, single-chip solutions. These devices bridge the gap between traditional CPLDs and larger FPGAs, offering high performance while shortening development cycles. The MX series is known for consolidating logic previously implemented across multiple chips into a single component.

Replacement Considerations

Direct replacements within the same package and pinout include other A42MX09 variants such as A42MX09-1TQ176I or A42MX09-VQG100A if pin counts differ. Cross-family migration to PolarFire or IGLOO2 may be necessary for updated RoHS compliance or lower power requirements, though these require schematic redesign.