Infineon Technologies S25FL256LAGMFM003

Overview

S25FL256LAGMFM003 from Infineon is a 256-Mbit serial NOR flash memory with quad SPI interface, 3.0 V supply voltage, 133 MHz read clock frequency, and uniform 256-byte programmable sectors. It serves as non-volatile program/data storage in microcontroller boot code and firmware update applications.

For engineers reviewing the S25FL256LAGMFM003 datasheet, S25FL256LAGMFM003 pinout, S25FL256LAGMFM003 application, or S25FL256LAGMFM003 equivalent, key selection criteria include sector architecture compatibility, quad I/O timing compliance, write-protect granularity, and industrial temperature range support.

Technical Context

This device implements a standard Serial Peripheral Interface (SPI) with extended quad I/O (QPI) mode for high-speed data transfer. It supports dual and quad read commands, configurable write protection via status register bits and hardware WP# pin, and includes a 64-bit unique ID for device identification.

Internal architecture features a 256-Mbit array organized as 512 pages of 512 bytes each, with erase granularity of 4-KB sectors and 64-KB blocks. The memory supports both volatile and non-volatile status register configuration and includes ECC logic for bit error correction during read operations.

Key Specifications

Pinout & Package

Package: 16-pin SOIC (300 mil, 1.27 mm pitch), RoHS-compliant, surface-mountable.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL256SAGMFM000, this part trades higher speed and advanced security for lower cost and simpler register configuration; versus MX25L25645GMI-13G, it adds ECC and unique ID at the expense of vendor-specific command set compatibility.

Availability

S25FL256LAGMFM003 is available at Aetrix Electronics and suitable for industrial automation, automotive ADAS modules, and medical imaging systems requiring stable component supply across multi-year production cycles.

Supply support for S25FL256LAGMFM003 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, automotive microcontrollers, and secure memory solutions.

This part belongs to the S25FL-S family of high-reliability serial NOR flash devices designed specifically for mission-critical embedded boot and firmware storage in harsh-environment applications.

FAQ

Is S25FL256LAGMFM003 pin-compatible with earlier S25FLxxxL devices?

Yes, it maintains identical 16-pin SOIC footprint and pin functions with S25FL128L and S25FL064L, enabling drop-in replacement in existing designs. Signal timing parameters remain consistent across the L-series, though QPI mode behavior may require minor firmware updates for optimal performance.

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

Yes, the device supports XIP through its high-speed quad I/O interface and 133 MHz read clock. Internal address latching and continuous read modes allow direct CPU instruction fetch without buffering, reducing external RAM usage in resource-constrained MCUs.

What is the endurance rating for program/erase cycles?

The device guarantees 100,000 program/erase cycles per sector, validated across the full industrial temperature range. Endurance is maintained under worst-case voltage (2.7 V) and temperature (105°C) conditions, with data retention exceeding 20 years at 55°C.

How is the 64-bit unique ID accessed?

The ID is read using the 4BH command followed by a 4-byte address (000000h). It is factory-programmed and permanently locked; no user-write access is possible. The ID remains readable even when security registers are locked, enabling secure boot chain verification.