A42MX24-3TQG176

Overview

The A42MX24-3TQG176 is a Field Programmable Gate Array (FPGA) from the Microchip MX family, featuring 36,000 system gates and 912 logic elements. It provides 150 I/O pins in a TQFP-176 surface-mount package. The device operates at a supply voltage between 4.75 V and 5.25 V, with a standard operating range of 3.3 V or 5 V. It supports mixed-voltage operation for core and I/Os. The component is rated for commercial temperature applications, functioning within a minimum working temperature of 0°C and a maximum of +70°C.

Feature Summary

• Single-chip ASIC alternative architecture designed for automotive and industrial applications
• Supports up to 100% resource utilization and 100% pin fixing for deterministic timing
• Includes unique in-system diagnostic capability via Silicon Explorer II
• Features fast wide-decode circuitry and synthesis-friendly design methodologies

Applications

• Automotive electronic control units and sensor interfaces
• Industrial automation and process control systems
• Replacement for complex discrete logic or custom ASICs

Procurement Notes

This specific part number is listed as End-of-Life (EOL). Manufacturers have issued discontinuation notifications indicating that production will cease. Buyers should verify current stock availability through authorized distributors and prepare for potential obsolescence management strategies. Alternative sourcing may require checking for surplus inventory or evaluating replacement components from the same product family.

Selection Notes

Designers should consider the EOL status when selecting this component for new products. Verify if the -3 speed grade meets timing requirements for the target application frequency. Ensure the TQFP-176 package fits the PCB footprint constraints. Check for RoHS compliance details in the official datasheet, as older revisions may differ. Evaluate migration paths to newer FPGA families if long-term supply stability is required.

Part Context

The A42MX24-3TQG176 belongs to the Actel/Microchip MX FPGA family, known for non-volatile flash-based technology. This series bridges the gap between standard FPGAs and ASICs by offering high integration and low power consumption. The 24 suffix indicates approximately 24,000 to 36,000 system gates depending on the specific metric used in documentation. The TQG176 designation refers to the thin quad flat pack package with 176 leads.

Replacement Considerations

Public confirmed substitute part numbers include A42MX24-TQG176A and A42MX24-3TQG208B. These variants share similar gate counts and architectural features but may differ in package type or pin count. Verify electrical specifications and pin compatibility before substitution.