AFS250-2PQG208

Overview

The AFS250-2PQG208 is a Fusion mixed-signal Field Programmable Gate Array (FPGA) manufactured by Microsemi Corporation. It features 250,000 system gates and 6,144 configurable logic blocks (tiles). The device operates on a single 3.3 V supply with an integrated 1.5 V regulator. Key specifications include 2 Mbits of embedded flash memory, 36 kbits of SRAM, and a 12-bit ADC supporting up to 18 analog input channels. It utilizes a PQFP-208 package with 114 maximum digital I/Os and supports speeds up to 350 MHz.

Feature Summary

• Integrates nonvolatile flash-based FPGA fabric with analog peripherals for instant-on operation without external boot PROMs.
• Includes a 12-bit ADC with up to 30 scalable analog input channels and high-voltage tolerance for mixed-signal applications.
• Features FlashLock security with 128-bit AES decryption via JTAG to protect intellectual property and configuration data.
• Provides advanced clocking resources including programmable real-time counters and multiple clock conditioning circuits.

Applications

• Power management systems and smart battery charging controllers
• Motor control applications requiring mixed-signal processing
• Clock generation and management in communication equipment
• System supervisor and monitoring functions

Procurement Notes

Verify the specific speed grade suffix required for the target frequency, as standard and faster grades exist. Confirm the temperature range designation matches the operational environment. Check for RoHS compliance status if environmental regulations apply. Ensure the ordering code includes the correct package type and security license options if cryptographic IP implementation is needed.

Selection Notes

Select this device when a single-chip solution combining logic, memory, and analog conversion is required. Compare gate density against AFS090 or AFS600 variants based on logic resource needs. Consider the M1AFS250 variant if an embedded ARM Cortex-M1 processor is necessary for system management tasks alongside the FPGA fabric.

Part Context

This component belongs to the Fusion family of mixed-signal FPGAs, which combines ProASIC3 flash architecture with analog peripherals. It is designed to replace costly discrete analog components and ASICs in system management and control applications. The family emphasizes low power consumption, high security, and rapid time-to-market through reprogrammability.

Replacement Considerations

Direct pin-compatible replacements within the same package are limited due to the specific 250,000-gate density. The AFS090 offers lower density, while the AFS600 provides higher capacity but may require board redesign if pin counts differ significantly. Evaluate the M1AFS250 if soft processor integration is desired instead of pure logic functionality.