A42MX09-1PL84I

Overview

The A42MX09-1PL84I is a Field Programmable Gate Array (FPGA) from the Microchip MX family, manufactured by Microchip Technology. It features 14,000 system gates and 336 Configurable Logic Blocks (CLBs). The device provides 72 user-programmable I/O pins and operates within a supply voltage range of 4.5V to 5.5V. It is housed in an 84-pin Plastic Leadless Chip Carrier (PLCC) package with dimensions of 29.31mm x 29.31mm. The component supports an industrial operating temperature range of -40°C to +85°C and complies with RoHS3 standards.

Feature Summary

• Single-chip ASIC alternative for automotive applications
• Supports mixed-voltage operation with PCI-compliant I/Os
• Enables up to 100% resource utilization and pin locking
• Features deterministic, user-controllable timing

Applications

• Automotive electronic control units
• Industrial automation controllers
• Mixed-signal interface bridging

Procurement Notes

Verify the specific suffix '1' indicates the industrial temperature grade (-40°C to +85°C) rather than commercial grade. Confirm RoHS3 compliance status as some legacy stock may differ. Check for End-of-Life notifications or Last-Time-Buy dates, as the MX family has undergone discontinuation processes. Ensure the PLCC-84 package availability matches current manufacturing sites listed in official Product Change Notices.

Selection Notes

Select this model when 14,000 system gates and 72 I/Os are required for mixed-voltage logic interfacing. Compare against A42MX09 variants with different packages if board space constraints differ. Verify that the 5V core voltage requirement aligns with the system power design, as it does not support lower voltage cores like 3.3V natively without external level shifting considerations for I/Os.

Part Context

This part belongs to the Microchip A42MX09 series, designed as a high-density replacement for complex discrete logic or small ASICs. The MX family is known for its fast wide-decode circuitry and synthesis-friendly architecture. It serves as a bridge between standard logic and custom silicon, offering flexibility during product development cycles while maintaining deterministic performance characteristics.

Replacement Considerations

Direct replacements include other A42MX09 variants with different packages such as A42MX09-PQG144 or A42MX09-FPQG100I, provided pin compatibility is verified. For higher capacity needs, consider the A42MX16 or A42MX24 series, though these require schematic and layout modifications due to increased gate counts and I/O configurations.