A42MX09-2TQ176I

Overview

The A42MX09-2TQ176I is a Flash-based Field Programmable Gate Array (FPGA) belonging to the Microsemi MX family. It features 14,000 system gates and 684 Configurable Logic Blocks (CLBs). The device operates with supply voltages of 3V to 3.6V or 4.5V to 5.5V. It provides 104 user-programmable I/O pins within a 176-pin Thin Quad Flat Package (TQFP). The industrial temperature grade variant supports operation from -40°C to +85°C.

Feature Summary

• Non-volatile Flash technology enabling instant-on functionality without external configuration memory
• Mixed-voltage I/O capability supporting both 5.0V and 3.3V standards for direct interface compatibility
• Deterministic timing characteristics allowing for precise user-controllable signal delays
• Integrated dual-port SRAM blocks facilitating efficient data buffering and FIFO applications

Applications

• High-speed controller implementations replacing complex discrete logic
• Peripheral bus interface adapters for legacy and modern systems
• Address decoding circuits in embedded processing architectures
• DSP co-processor functions requiring low-latency data path control

Procurement Notes

Verify the specific suffix designation against official Microsemi documentation to confirm the exact temperature range and package tolerance. Confirm RoHS compliance status as older MX family variants may differ from current production standards. Ensure the supplier provides valid traceability documents for the 176-TQFP component. Cross-reference the manufacturer part number with the latest datasheet revision to avoid obsolete stock.

Selection Notes

Select this model when a non-volatile FPGA solution is required to eliminate external configuration flash chips. The 14,000 gate count suits moderate complexity logic consolidation tasks. Verify that the 104 available I/O pins meet the system interface requirements. Consider the mixed-voltage support if interfacing with both 3.3V and 5V peripherals without level shifters.

Part Context

This component is part of the Actel/Microsemi MX series, designed as a single-chip ASIC alternative. The family bridges the gap between CPLDs and larger FPGAs, offering high density in compact packages. The A42MX09 specifically targets applications needing robust performance with low power consumption and immediate system readiness upon power-up.

Replacement Considerations

Direct replacements include other A42MX09 variants with different package codes such as A42MX09-1VQ100M or A42MX09-2PG100A. Verify pin-to-pin compatibility and electrical specifications before substitution. Alternative families like ProASIC3 may offer similar functionality but require reconfiguration of the design flow.