S25FS256SAGNFI000

Memory IC Overview

The S25FS256SAGNFI000 is a 256 Mbit (32 MB) NOR flash memory from the FS-S family, utilizing 65-nm MIRRORBIT technology and Eclipse architecture. It operates on a single 1.7 V to 2.0 V supply voltage and supports SPI Multi-I/O interfaces including SDR Quad I/O at 133 MHz and DDR Quad I/O at 80 MHz. The device features a 512-byte page programming buffer, hybrid or uniform sector erase options, and an industrial temperature range of -40°C to +85°C. It is housed in an 8-lead WSON package.

Memory IC Feature Summary

• Supports high-speed data transfer via Serial Peripheral Interface with Single, Dual, and Quad I/O modes, including Double Data Rate (DDR) read commands for enhanced throughput.
• Integrates Advanced Sector Protection (ASP) allowing individual sector protection controlled by boot code or password, alongside hardware error correction code generation.
• Features configurable sector sizes, offering hybrid options with small parameter sectors and large uniform blocks, or fully uniform logical sectors for software compatibility.

Memory IC Applications

• Code shadowing to RAM
• Executing code directly (XIP)
• Storing reprogrammable data

Memory IC Procurement Notes

Verify the specific ordering suffix against official Infineon documentation to confirm package type, temperature grade, and lead finish. Ensure the design accounts for the 1.8 V nominal supply voltage requirements. Confirm that the host system supports the required SPI clock modes and interface protocols before finalizing procurement.

Memory IC Selection Notes

Select this component for applications requiring high-density storage within a compact footprint and low power consumption. It is suitable for systems needing fast read speeds and robust data protection features. Consider the industrial temperature range and the availability of advanced security features when evaluating alternatives.

Memory IC Part Context

This part belongs to the S25FS-S family of serial flash memories, which are command subset and footprint compatible with prior FL-S, FL-K, and FL-P families. The FS-S series introduces a single 1.8 V supply, improved program/erase performance via Eclipse architecture, and support for Serial Flash Discoverable Parameters (SFDP).

Memory IC Replacement Considerations

Check for direct substitutes within the S25FS-S family or legacy FL-S devices. Verify compatibility regarding supply voltage differences (1.8 V vs 3.3 V) and interface timing specifications. Ensure that any replacement supports the required sector size configurations and security features.