EmbeddedRelated.com
The 2026 Embedded Online Conference
S25FL128SAGNFI011

IFXS25FL128SAGNFI011

Infineon Technologies
FLASH - NOR Memory IC 128Mbit SPI - Quad I/O 133 MHz 8-WSON (6x8)
Active3,139 in stock

Overview

The S25FL128SAGNFI011 is a high-performance 128Mbit (16MB) NOR Flash memory IC featuring a Quad I/O SPI interface capable of clock speeds up to 133 MHz. It utilizes 65nm MirrorBit technology to provide high-density non-volatile storage with integrated Error Correction Code (ECC) for enhanced data reliability. This part supports both Single Data Rate (SDR) and Double Data Rate (DDR) read operations to maximize throughput in high-speed embedded systems.

Why Choose This Part

This memory IC features internal hardware ECC that automatically detects and corrects single-bit errors, significantly increasing data integrity over its 20-year retention life. It offers versatile power profiles with a standby current of 70 uA and supports Quad DDR modes for high-bandwidth data transfer using fewer pins than parallel flash.

Applications

Execute-in-Place (XiP) Bootloading
High clock speeds up to 133 MHz and Quad SPI throughput allow microcontrollers to execute code directly from the flash memory, reducing the need for large internal SRAM.
FPGA Configuration
Stores bitstream data for FPGAs that require fast, reliable loading during power-up cycles.
Firmware Storage
Provides 128Mbit of capacity for complex firmware images in industrial controllers and networking equipment.
Data Logging
Reliable storage for system logs and configuration parameters with 100,000 program-erase cycle endurance.

Key Specifications

Technology FLASH - NOR
Memory Size 128Mbit
Memory Type Non-Volatile
Memory Format FLASH
Mounting Type Surface Mount
Package / Case 8-WDFN Exposed Pad
Clock Frequency 133 MHz
Memory Interface SPI - Quad I/O
Voltage - Supply 2.7V ~ 3.6V
Memory Organization 16M x 8
Operating Temperature -40degC ~ 85degC (TA)
Supplier Device Package 8-WSON (6x8)

Getting Started

To interface with this device, ensure your SPI controller supports Mode 0 or Mode 3 and can handle the 2.7V to 3.6V supply range. Engineers should implement the standard JESD216B Serial Flash Discoverable Parameters (SFDP) protocol to automatically identify memory characteristics during initialization. For development, use a logic analyzer to verify the Quad I/O handshake and refer to the Infineon low-level driver (LLD) for sample C code implementation.

S25FL128S Family

Comparing specs that differ across variants. The current part is highlighted.

Part Number Package Stock
S25FL128SAGNFI011 (this part) WDFN-8 3,139
S25FL128SAGMFI011 SOIC-16 236
S25FL128SAGNFI001 WDFN-8 7,760

Also Consider

W25Q128JVSIQ Winbond Electronics - A widely used alternative with similar 133 MHz Quad SPI performance and compatible footprint for standard applications.
MX25L12833FM2I-10G Macronix - Offers 128Mbit capacity and Quad I/O support, often chosen for cost-sensitive high-volume designs.
The 2026 Embedded Online Conference