IFXS25FL256SAGNFB000
Overview
The S25FL256SAGNFB000 is a 256Mbit (32MB) non-volatile NOR Flash memory IC designed for high-performance embedded systems. It utilizes a Quad-I/O SPI interface and supports Double Data Rate (DDR) read commands to achieve high throughput for Execute-in-Place (XiP) applications. Operating within a 2.7V to 3.6V range, this device features internal hardware Error Correction Code (ECC) to enhance data reliability.
Why Choose This Part
This memory offers a hybrid sector architecture, combining 4-KB parameter sectors with 64-KB sectors to optimize storage for both small configuration data and large firmware blocks. The integrated hardware ECC automatically corrects single-bit errors, providing a significant boost to system uptime and data integrity compared to standard NOR flash.
Applications
Key Specifications
Getting Started
Engineers can interface this part using standard SPI, Dual SPI, or Quad SPI drivers provided by most MCU vendor HALs. When designing the PCB, ensure short trace lengths and proper impedance matching for the 133 MHz clock signals, and place a 0.1uF decoupling capacitor close to the VCC pin. Configuration can be simplified using the Common Flash Interface (CFI) data to automatically detect device parameters at runtime.
S25FL256S Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Package | Temp Range | Stock |
|---|---|---|---|
| S25FL256SAGNFB000 (this part) | WDFN-8 | -40degC ~ 105degC .. | 664 |
| S25FL256SAGNFI001 | WDFN-8 | -40degC ~ 85degC (.. | 1,533 |
| S25FL256SAGBHV200 | TBGA-24 | -40degC ~ 105degC .. | 845 |



