M1AFS1500-FGG484K - 1.5M Gate Fusion FPGA, 223 I/O | Microchip

The Microchip Technology M1AFS1500-FGG484K is a Fusion mixed-signal FPGA delivering 1.5 million system gates, 276480 bits of embedded flash-based RAM, and 223 user I/Os in a 484-pin FBGA (23x23 mm) package operating from a 1.425V to 1.575V core supply.

An FPGA (Field-Programmable Gate Array) is a semiconductor device containing a matrix of configurable logic blocks and programmable interconnects that the designer wires together after manufacturing, unlike fixed-function ASICs. FPGAs sit within the broader hierarchy of programmable logic devices, above CPLDs in density, and are a cornerstone of modern digital system design, prototyping, and application-specific acceleration.

The M1AFS1500 belongs to the Fusion family, which is distinctive for integrating configurable analog blocks, large flash memory blocks, comprehensive clock generation and management circuitry (CCC), and flash-based programmable logic on a single monolithic die fabricated in 130nm technology. The M1 prefix denotes Fusion devices with an embedded ARM Cortex-M1 soft processor, enabling single-chip MCU-plus-FPGA designs. Flash-based programming means the configuration is non-volatile, requiring no external configuration PROM and providing instant-on behavior and inherent resistance to configuration bitstream interception compared with SRAM FPGAs.

Typical applications include industrial automation and motor control (leveraging the analog blocks and Cortex-M1), instrumentation and test equipment, aerospace and defense systems requiring non-volatile secure FPGAs, and mixed-signal embedded control where discrete ADC, supervisor, and FPGA chips are being consolidated.

A key design consideration is supply integrity: the 1.5V core rail must stay within the 1.425V to 1.575V window with proper decoupling, and the 484-ball FBGA requires careful via-in-pad breakout planning for the 223 I/O banks.

This page synthesizes verified distributor pricing, drop-in family alternatives from the Fusion portfolio, and engineering selection guidance not found in the manufacturer datasheet.