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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Infineon Technologies S25FL256LAGMFN001

Name: S25FL256LAGMFN001
Brand: Infineon Technologies
SKU: S25FL256LAGMFN001
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S25FL256LAGMFN001

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 16-SOIC (0.295", 7.50mm Width)

Datasheet:: S25FL256LAGMFN001.pdf

Description:: IC FLASH 256MBIT SPI/QUAD 16SOIC

Quantity:: RFQ Add To RFQ list

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Inventory:4,627

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Product details

Overview

S25FL256LAGMFN001 from Cypress Semiconductor is a 256 Mbit (32 Mbyte) 3.0 V serial NOR flash memory with SPI Multi-I/O interface, supporting SDR/DDR Quad I/O and QPI modes, 4KB uniform sector erase, 100,000 program-erase cycles, and industrial temperature range (–40°C to +85°C). It serves as non-volatile code storage for microcontroller boot code, firmware updates, and XIP execution in space-constrained embedded systems.

For engineers reviewing the S25FL256LAGMFN001 datasheet, S25FL256LAGMFN001 pinout, S25FL256LAGMFN001 application, or S25FL256LAGMFN001 equivalent, key selection criteria include quad/dual I/O read bandwidth (66 MBps), page programming buffer size (256 bytes), security region protection granularity (256-byte regions), and compatibility with legacy S25FL-P/S families.

Technical Context

The device implements a floating-gate 65 nm process with Serial Flash Discoverable Parameters (SFDP) support for runtime configuration discovery. Its command set includes suspend/resume for both program and erase operations, enabling real-time host task interruption without data corruption.

It supports three addressing modes (24-bit standard, 32-bit extended), multiple SPI clock polarities/phases (modes 0 and 3), and configurable I/O widths (x1/x2/x4) via dedicated configuration registers (CR1V, CR2V), allowing dynamic interface reconfiguration without hardware change.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	256 Mbit (32 Mbyte) - sufficient for full MCU boot image + firmware + configuration data in compact IoT nodes
Interface Modes	SDR/QPI/Dual/Quad I/O + DDR Quad - enables scalable bandwidth from 6.25 MBps to 66 MBps on same physical pins
Erase Granularity	Uniform 4 KB sectors - allows fine-grained firmware patching without disturbing adjacent functional modules
Endurance	100,000 program-erase cycles - supports field firmware update frequency up to once per day for >27 years
Data Retention	20 years at +85°C - meets long-life requirements for industrial control and automotive infotainment storage
Supply Voltage	2.7 V to 3.6 V - compatible with standard 3.3 V logic rails and tolerant of brown-out conditions down to 2.7 V
Temperature Range	–40°C to +85°C (Industrial) - validated for operation in uncontrolled ambient environments like factory automation panels

Pinout & Package

Package: 16-pin SOIC 300 mil (SO3016), Pb-free, RoHS-compliant.

Pin/Terminal	Circuit Role	Design Meaning
CS#	Chip Select Input	Active-low enable for command latching; must be held low during entire command sequence including address/data transfer
SCK	Serial Clock Input	Provides timing reference for all SPI transfers; supports up to 133 MHz SDR or 66 MHz DDR operation
SI / IO0	Serial Input / I/O0	Single-bit input in SIO mode; least-significant data bit in Dual/Quad modes; bidirectional in QPI
SO / IO1	Serial Output / I/O1	Single-bit output in SIO mode; second data bit in Dual/Quad modes; bidirectional in QPI
WP# / IO2	Write Protect / I/O2	Hardware write lock when CR1V[1]=0; becomes IO2 in Quad mode; internal pull-up allows NC if unused
IO3 / RESET#	I/O3 or Hardware Reset	Configurable: IO3 in Quad/QPI mode; RESET# when enabled by CR2V[7]=1; internal pull-up permits NC
VDD	Power Supply	Primary 2.7–3.6 V supply; decoupling capacitor required within 10 mm of pin for stable high-speed operation
VSS	Ground	Signal and power return path; must be connected to system ground plane with low-inductance trace

Key Features

Feature	Design Value
Program/Erase Suspend & Resume	Allows host CPU to interrupt ongoing flash operations for time-critical tasks without data loss or timeout failure
Four 256-byte Security Regions	Enables isolated storage of cryptographic keys, calibration data, or OEM-specific parameters outside main array with independent lock control
Serial Flash Discoverable Parameters (SFDP)	Eliminates hardcoded timing/configuration in bootloader; enables automatic driver initialization across FL-L family variants
Legacy SPI Family Compatibility	Footprint and command subset match S25FL-P/S/S25FL1-K - simplifies migration from prior-generation Cypress flash
Deep Power Down Mode	2 µA standby current - extends battery life in always-on sensor nodes or wearable devices between wake cycles

Applications

Industrial PLC Firmware Storage

Automotive ADAS Boot Memory

Use Scenario: Storing programmable logic controller firmware updated quarterly via field service tools.

IC Role / Device Role / Timing Role: Non-volatile boot memory holding executable code and configuration tables loaded at power-on reset.

Use Value: 4KB sector erase enables patch-level updates without full reflash; 100K endurance supports 27+ years of scheduled maintenance cycles.

Use Scenario: Booting vision processing unit firmware in lane-departure warning systems requiring ASIL-B compliance.

IC Role / Device Role / Timing Role: Primary XIP-capable flash executing safety-critical boot code directly from memory.

Use Value: 66 MBps Quad Read bandwidth meets real-time boot latency targets; -40°C to +85°C rating ensures reliability under hood temperature extremes.

Medical Imaging Device Configuration

Smart Meter Firmware Vault

Use Scenario: Secure storage of calibration coefficients and regulatory certification data in portable ultrasound units.

IC Role / Device Role / Timing Role: Protected parameter store using four independent 256-byte security regions with password lock-down.

Use Value: Isolated security regions prevent accidental overwrite of FDA-mandated calibration data during routine firmware upgrades.

Use Scenario: Tamper-resistant firmware storage in utility smart meters deployed in outdoor enclosures for 15+ year lifespans.

IC Role / Device Role / Timing Role: Long-retention code storage with deep power down (2 µA) during meter sleep cycles.

Use Value: 20-year data retention at +85°C ensures firmware integrity over full product lifecycle without refresh cycles.

Equivalent & Alternatives

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

Alternative Part	Technical Difference	Application Difference	Selection Advice
S25FL256SAGMFV001	Same density and package, but FL-S family: 90 nm process, no DDR support, lower Quad Read speed (52 MBps)	Lacks DDR mode and SFDP; requires fixed timing initialization in bootloader	Select only if cost sensitivity outweighs need for DDR bandwidth or future-proof SFDP flexibility
MX25L25645GMI-10G	Micron-compatible pinout; 32MB density; supports DTR Quad but no program/erase suspend	No suspend/resume capability limits use in real-time multitasking hosts	Prefer when migrating from existing Macronix-based designs where suspend is not required

Compared with S25FL256SAGMFV001 and MX25L25645GMI-10G, the S25FL256LAGMFN001 delivers higher bandwidth via DDR Quad I/O, runtime-configurable SFDP, and critical suspend/resume functionality-making it optimal for next-generation embedded systems requiring deterministic flash operation under concurrent host load.

Availability

S25FL256LAGMFN001 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging device configuration requiring stable component supply and long-term lifecycle support.

Supply support for S25FL256LAGMFN001 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

Cypress Semiconductor (now part of Infineon Technologies) designs high-performance, low-power semiconductor solutions for embedded, automotive, and industrial applications.

The FL-L family was engineered specifically for high-bandwidth, secure, and reliable code storage in resource-constrained embedded systems-emphasizing SPI-MIO scalability, robust data retention, and hardware-assisted security partitioning.

FAQ

What is the maximum clock frequency supported in DDR Quad I/O mode?

The S25FL256LAGMFN001 supports DDR Quad I/O operation at up to 66 MHz clock frequency, delivering 66 MBps effective read bandwidth. This is confirmed in the Performance Summary section (Page 2) of the official datasheet (Document Number: 002-00124 Rev. *A), where DDR Quad Read is specified at 66 MHz with 66 MBps throughput.

Does this device support hardware write protection independent of software commands?

Yes - the WP# pin provides hardware-level write protection when CR1V[1] = 0 and SR1NV[7] = 1. In this configuration, driving WP# low disables all program/erase commands regardless of status register settings, offering fail-safe protection against accidental writes during power transients or firmware faults.

Can the security regions be used to store cryptographic keys securely?

Yes - the four 256-byte security regions reside outside the main flash array and support independent lock mechanisms including volatile sector lock, non-volatile pointer region control, and permanent password- or power-supply lock-down. These features are explicitly designed for secure key and credential storage per Section 8.1 of the datasheet.

Is the SO3016 package RoHS-compliant and lead-free?

Yes - the datasheet states "all Pb-free" packages, and the SO3016 variant (as indicated by the 'G' in the part number suffix) is explicitly certified RoHS-compliant and lead-free per Cypress's ordering information (Page 141) and environmental compliance documentation.

S25FL256LAGMFN001 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: FL-L

Package/Case:: 16-SOIC (0.295", 7.50mm Width)

Packaging:: Tube

Product Status:: Active

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: FLASH

Technology:: FLASH - NOR

Memory Size:: 256Mbit

Memory Organization:: 32M x 8

Memory Interface:: SPI - Quad I/O, QPI

Clock Frequency:: 133 MHz

Write Cycle Time - Word, Page:: -

Access Time:: -

Voltage - Supply:: 2.7V ~ 3.6V

Operating Temperature:: -40°C ~ 125°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 16-SOIC

S25FL256LAGMFN001 FAQ

1.How can I place an order for S25FL256LAGMFN001 through Aetrix?

Please submit a Request for Quotation (RFQ) for S25FL256LAGMFN001 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for S25FL256LAGMFN001 reliable?

The price and inventory of S25FL256LAGMFN001 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LAGMFN001 is usually 5 days.

3.What payment methods are accepted for S25FL256LAGMFN001?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LAGMFN001 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S25FL256LAGMFN001?

S25FL256LAGMFN001 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S25FL256LAGMFN001 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for S25FL256LAGMFN001?

For technical support, including S25FL256LAGMFN001 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LAGMFN001 requirements.

6.How does Aetrix verify that S25FL256LAGMFN001 is sourced from the original manufacturer or authorized distributors?

All S25FL256LAGMFN001 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that S25FL256LAGMFN001 meets industry standards.

7.What is the process for return or replacement of S25FL256LAGMFN001?

All S25FL256LAGMFN001 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LAGMFN001, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The S25FL256LAGMFN001 part is unused and in its original packaging.

Return procedure for S25FL256LAGMFN001:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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