AFS090-2FG256

Overview

The Microsemi AFS090-2FG256 is a Fusion mixed-signal Field Programmable Gate Array featuring 90,000 system gates and 2,304 VersaTiles. It integrates 2 Mbits of user flash memory, 1 Kbit of FlashROM, and 27 kbits of SRAM. The device includes an analog-to-digital converter with up to 15 input channels and five Analog Quads containing gate driver outputs. Operating at speed grade -2, it supports a maximum digital clock frequency of 350 MHz. The FG256 package provides 75 single-ended or 22 differential I/Os in a 1.0 mm pitch Fine Pitch Ball Grid Array.

Feature Summary

• Instant On nonvolatile flash architecture eliminates external configuration boot PROMs
• Integrated analog peripherals including ADC and MOSFET gate drivers for mixed-signal control
• Hardware security features with AES decryption and FlashLock protection
• Single 3.3 V power supply operation with on-chip voltage regulation

Applications

• Power management and smart battery charging systems
• Motor control applications requiring integrated gate driving
• Clock generation and distribution networks
• System supervisor and brownout detection circuits

Procurement Notes

Verify the specific ordering suffix against the manufacturer's current product catalog to confirm availability status and lead times. Ensure the selected package variant matches the required thermal and mechanical specifications for the target PCB layout. Confirm that the firmware tools support the specific speed grade and security options defined in the part number.

Selection Notes

Select this component when a design requires high-density logic combined with direct analog signal processing capabilities. The AFS090-2FG256 is suitable for applications needing immediate system startup without external configuration memory. Consider the available I/O count and analog channel requirements to ensure the device meets the interface constraints of the target system architecture.

Part Context

This device belongs to the Microsemi Fusion family of mixed-signal FPGAs, which combines programmable logic with embedded analog and memory resources. The AFS090 represents the entry-level density within the series, offering a balance of logic capacity and peripheral integration. It shares architectural similarities with higher-density models like the AFS600 while maintaining pin compatibility across specific packages.

Replacement Considerations

Compatible alternatives include other devices within the Microsemi Fusion family, such as the AFS090-1FG256 or AFS090-IQNG256, depending on temperature range and speed grade requirements. Cross-family migration to ProASIC3 or IGLOO devices may require significant schematic and software redesign due to architectural differences.