A42MX16-3TQG176I

Overview

The A42MX16-3TQG176I is a field-programmable gate array (FPGA) from the Microchip MX family, designed for high-performance logic applications. It features 24,000 system gates and 608 logic elements, housed in a 176-pin TQFP package with 140 available I/Os. The device supports dual-voltage operation at 3.3V and 5V, with a supply voltage range of 4.5V to 5.5V. It operates within an industrial temperature range of -40°C to +85°C. Key electrical characteristics include a maximum clock-to-out delay of 5.6ns and support for up to 2.5 kbits of configurable dual-port SRAM.

Feature Summary

• Provides single-chip ASIC alternative capabilities by consolidating logic previously implemented in multiple PALs, CPLDs, and FPGAs.
• Supports mixed-voltage operation for core and I/Os, ensuring compatibility with PCI-compliant interfaces.
• Enables deterministic, user-controllable timing with up to 100% resource utilization and pin locking.

Applications

• High-speed controllers
• Address decoding systems
• Peripheral bus interfaces
• DSP and co-processor functions

Procurement Notes

Verify component authenticity through authorized Microchip distributors or certified agents. Confirm RoHS compliance status and check for specific manufacturing change notices (PCN) regarding packaging or material updates. Ensure storage conditions account for moisture sensitivity level 3 requirements before reflow soldering.

Selection Notes

Select this model when 24K system gates and 140 I/Os are required in a 176-pin TQFP form factor. Compare against other MX series variants based on specific I/O counts and package types like PQFP or CQFP. Verify that the 5.6ns performance meets timing constraints for target peripheral bus interfaces.

Part Context

This component belongs to the Microchip MX FPGA family, which bridges the gap between complex programmable logic devices and full-scale FPGAs. The series is known for cost-effective design solutions at 5V, offering high performance while shortening development cycles for embedded logic applications.

Replacement Considerations

Direct substitutes within the same package and pinout may include other speed grades of the A42MX16 series, such as the A42MX16-2TQG176I. Cross-series migration to newer Actel or Microchip FPGA families requires schematic and firmware verification due to architectural differences.