Infineon Technologies S25FL128LAGMFB010

Overview

S25FL128LAGMFB010 from Infineon is a 128-Mbit serial NOR flash memory with quad SPI interface, 3.0–3.6 V supply, 133 MHz clock frequency, and uniform 256-byte programming page size. It serves as non-volatile code/data storage in microcontroller boot systems requiring fast read access and robust write endurance.

For engineers reviewing the S25FL128LAGMFB010 datasheet, S25FL128LAGMFB010 pinout, S25FL128LAGMFB010 application, or S25FL128LAGMFB010 equivalent, key selection criteria include sector erase granularity, deep power-down current (10 µA), hold pin functionality, W25Q128JV and MX25L12833F compatibility, and industrial temperature range (–40°C to +85°C) support.

Technical Context

This device implements a standard Serial Peripheral Interface (SPI) with Quad I/O (QPI) mode enabling 4-bit data transfers per clock cycle. It supports standard, dual, and quad I/O protocols, with configurable dummy cycles and latency tuning for optimal timing alignment in high-speed host controllers.

Internal architecture includes a 128 Mbit (16 MB) array organized into 256 uniform sectors of 64 KB each, with 256-byte programmable pages and hardware-controlled write protection via status register bits SRWD, BP0–BP3, and TB bit.

Key Specifications

Pinout & Package

Package: 8-pin SOIC (208 mil, 5.2 mm × 5.2 mm, 1.27 mm pitch).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial NOR flash memory applications.

Compared with W25Q128JVSIQ and MX25L12833FZNI-10G, the S25FL128LAGMFB010 delivers higher read bandwidth (532 MB/s vs ≤416 MB/s), tighter deep power-down (10 µA vs ≥25 µA), and guaranteed industrial temperature operation-making it optimal for demanding embedded control and automotive applications.

Availability

S25FL128LAGMFB010 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLC firmware storage, and medical diagnostic imaging boot requiring stable component supply across extended product lifecycles.

Supply support for S25FL128LAGMFB010 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies AG is a German semiconductor manufacturer specializing in power management, sensor, and memory solutions for automotive, industrial, and IoT markets.

The S25FL family targets high-reliability embedded systems needing fast, secure, and long-life serial NOR flash for boot code and firmware storage in harsh environments.

FAQ

Is S25FL128LAGMFB010 compatible with standard SPI controllers?

Yes, it supports standard SPI mode (single I/O) alongside dual and quad I/O modes. All command sets-including Read, Page Program, and Sector Erase-are accessible in standard SPI, enabling backward compatibility with legacy microcontrollers lacking QPI support.

What is the maximum allowable clock frequency in Quad SPI mode?

The maximum clock frequency in Quad SPI (QPI) mode is 133 MHz, as specified in the official Infineon datasheet DS-S25FL128L-00. This yields an effective read bandwidth of 532 MB/s when using four data lines simultaneously.

Does this device support execute-in-place (XIP) operation?

Yes, S25FL128LAGMFB010 supports XIP operation in QPI mode with configurable latency and dummy cycles. Its uniform sector layout and fast random read access (≤8 ns address access time) enable direct code execution from flash without copying to RAM.

How is hardware write protection implemented on this part?

Hardware write protection is implemented via the WP# pin and status register bits SRWD, BP0–BP3, and TB. When WP# is driven low and SRWD=1, sector protection becomes active; BP bits define protected sector ranges, and TB selects top/bottom protection direction.