A42MX16-1PLG84M

Overview

The A42MX16-1PLG84M is a high-capacity Field Programmable Gate Array (FPGA) from the Microchip MX series, manufactured by Microchip Technology. It features 24,000 system gates and supports up to 72 user-programmable I/O pins within an 84-pin PLCC package. The device operates with mixed-voltage capabilities, supporting supply voltages of 3V to 3.6V and 4.5V to 5.5V. It offers high performance with a 5.6 ns clock-to-out delay and 250 MHz speed, integrating up to 2.5 kbits of configurable dual-port SRAM for embedded memory functions.

Feature Summary

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

Applications

• High-speed controllers and address decoding systems
• Peripheral bus interface implementations
• Digital Signal Processing (DSP) and co-processor functions

Procurement Notes

Verify component authenticity through authorized Microchip distributors or certified suppliers. Confirm RoHS compliance status and moisture sensitivity level (MSL 3) prior to soldering. Check for obsolescence notices or Product Change Notifications (PCN) as this family may have limited availability. Ensure proper handling procedures are followed due to humidity sensitivity requirements during storage and assembly.

Selection Notes

Select this model when requiring 24,000 system gates with an 84-pin PLCC footprint. Consider the -1 speed grade for 250 MHz performance needs. Verify voltage requirements match the 3.3V or 5V core/I/O configurations. Evaluate if the integrated dual-port SRAM meets memory constraints before choosing larger gate-count alternatives in the MX family.

Part Context

This component belongs to the Microsemi/Microchip 40MX and 42MX FPGA families, designed for cost-effective design solutions at 5V. These devices bridge the gap between complex CPLDs and large FPGAs, offering high performance while shortening development cycles. The MX series is known for its non-volatile flash technology, allowing instant-on functionality without external configuration memory.

Replacement Considerations

Direct substitutes include other variants within the A42MX16 family such as A42MX16-VQG100A or A42MX16-PQG100I, though package differences require PCB redesign. For legacy replacements, verify pinout compatibility with older Actel parts. No direct drop-in replacement exists for the specific PLG84M package variant without hardware modification.