A42MX36-1BG272

Overview

The A42MX36-1BG272 is a non-volatile Flash-based Field Programmable Gate Array (FPGA) from the Microchip MX family. It provides 54,000 system gates and 2,438 configurable logic blocks (CLBs). The device includes up to 2.5 kbits of configurable dual-port SRAM for embedded memory applications. It operates with mixed-voltage support, accommodating both 3.3V and 5.0V supplies for core and I/Os. The component is housed in a 272-ball Plastic Ball Grid Array (PBGA) package.

Feature Summary

• Non-volatile Flash architecture eliminates configuration overhead and supports instant-on functionality.
• Mixed-voltage operation allows seamless integration with both 3.3V and 5.0V systems.
• Deterministic timing ensures user-controllable performance suitable for ASIC replacement.
• High pin count enables complex interface requirements with up to 202 user-programmable I/Os.

Applications

• Single-chip ASIC replacement for automotive and industrial control systems
• Prototyping and low-volume production of digital logic circuits
• Interface bridging between legacy 5V components and modern 3.3V processors

Procurement Notes

Verify the specific speed grade suffix corresponding to the required timing performance before ordering. Confirm that the PBGA272 package dimensions align with the target PCB footprint. Check current lifecycle status as older MX series devices may face discontinuation or supply constraints. Ensure design tools support the specific Flash programming requirements of this generation.

Selection Notes

Select this model when 54,000 system gates are sufficient for the design complexity. Choose the BG272 package if high-density interconnects and thermal dissipation via the board are prioritized over leaded packages. Verify that the available 2.5 kbits of SRAM meets the data buffering needs. Consider the mixed-voltage capability if the system requires direct interfacing with varying voltage domains without level shifters.

Part Context

This part belongs to the Actel/Microchip MX family of Flash FPGAs, known for non-volatile configuration. It sits above the A42MX24 in capacity within the standard MX line. The device shares architectural similarities with the A40MX series but offers higher gate counts and enhanced I/O flexibility. It is designed to replace custom ASICs in cost-sensitive applications requiring reprogrammability.

Replacement Considerations

Direct pin-compatible replacements within the same package are limited due to the specific gate count and I/O distribution. Designers may consider the A42MX36-3BG272 for different speed grades or the A42MX36-CQ208 if a QFP package is acceptable. Cross-family migration to SmartFusion or IGLOO2 requires significant schematic and layout changes.