AFS090-FG256

Overview

The Microsemi AFS090-FG256 is a Fusion mixed-signal Field Programmable Gate Array (FPGA) 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 (ADC) with up to 15 input channels and 5 MOSFET gate driver outputs. It operates on a single 3.3 V supply with an internal 1.5 V regulator, supports 75 digital I/Os in a 256-pin Fine Pitch Ball Grid Array (FG256), and delivers system performance up to 350 MHz.

Feature Summary

• Instant On nonvolatile flash technology eliminates the need for external boot PROMs and configuration components.
• Integrated mixed-signal capabilities include a configurable ADC, high-voltage tolerant analog inputs, and programmable MOSFET gate drivers.
• Advanced security features utilize FlashLock and 128-bit AES encryption to protect intellectual property and enable secure in-system programming.
• Single-chip solution reduces bill-of-materials costs by combining FPGA fabric, embedded memory, and analog peripherals.

Applications

• Power management systems
• Smart battery charging applications
• Clock generation and management circuits
• Motor control systems

Procurement Notes

Verify the specific ordering suffix for temperature grade and security licensing when sourcing this component. Confirm package availability as FG256 is a standard offering. Check for RoHS compliance status if required, noting that lead-free options may carry distinct suffixes. Ensure design tools are compatible with the Fusion family architecture before procurement.

Selection Notes

Select the AFS090-FG256 for designs requiring moderate logic density combined with significant analog integration. Compare resource requirements against higher-density models like the AFS250 or AFS600 if more gates or I/O banks are needed. Consider the FG256 package constraints regarding pin count and thermal dissipation for the target application environment.

Part Context

This part belongs to the Microsemi Fusion family of mixed-signal FPGAs, which combines flash-based programmable logic with analog peripherals. The AFS090 represents the entry-level density within this series, offering 90,000 system gates. It shares architectural similarities with other Fusion devices but provides fewer analog channels and memory blocks compared to larger variants.

Replacement Considerations

Direct pin-compatible replacements within the same package exist within the Fusion family, such as the AFS250-FG256 or AFS600-FG256, provided logic resources are sufficient. Verify software compatibility and resource utilization when migrating to higher-density parts.