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

Infineon Technologies S25FL256LDPNFA013

Name: S25FL256LDPNFA013
Brand: Infineon Technologies
SKU: S25FL256LDPNFA013
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S25FL256LDPNFA013

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 8-WDFN Exposed Pad

Datasheet:: S25FL256LDPNFA013.pdf

Description:: IC FLASH 256MBIT SPI/QUAD 8WSON

Quantity:: RFQ Add To RFQ list

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Inventory:4,818

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Product details

Overview

S25FL256LDPNFA013 from Infineon Technologies is a 256-Mbit serial NOR flash memory IC with quad SPI interface, 1.8 V supply voltage, 133 MHz clock frequency, and uniform 4-KB sector erase capability. It serves as non-volatile program/data storage in microcontroller boot code and firmware update applications.

For engineers reviewing the S25FL256LDPNFA013 datasheet, S25FL256LDPNFA013 pinout, S25FL256LDPNFA013 application, or S25FL256LDPNFA013 equivalent, key selection criteria include quad I/O read throughput, sector protection granularity, write endurance (100K cycles), data retention (20 years), 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 both legacy SPI single/dual I/O and enhanced QPI operation with command/address/data on four lines simultaneously.

Internal architecture includes a 256-Mbit (32 MB) memory array organized as 524,288 × 64-bit words, with uniform 4-KB sectors and 64-KB blocks. Write protection is implemented via hardware WP# pin and software status register bits.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	256 Mbit (32 MB) - sufficient for full MCU boot image plus field-upgradable firmware partition
Interface	Quad SPI (QPI) - enables 532 MB/s peak read bandwidth using 133 MHz clock with 4-bit data bus
Supply Voltage	1.7–1.95 V - compatible with low-power 1.8 V system rails and reduces active power consumption
Erase Granularity	Uniform 4-KB sectors - allows fine-grained firmware update without disturbing adjacent code sections
Endurance	100,000 program/erase cycles per sector - supports frequent OTA updates in edge-node applications
Data Retention	20 years at +25°C - ensures long-term reliability for unattended industrial deployments

Pinout & Package

Package: 8-pin SOIC (300 mil, PN suffix), RoHS-compliant, surface-mount.

Pin/Terminal	Circuit Role	Design Meaning
SO / IO3	Serial Output / Quad I/O 3	Output during standard SPI reads; bidirectional in QPI mode for data lane D3
WP# / IO2	Write Protect / Quad I/O 2	Hardware sector lock when asserted low; bidirectional in QPI for data lane D2
HOLD# / IO1	Hold Input / Quad I/O 1	Pauses ongoing transmission without chip deselect; bidirectional in QPI for data lane D1
SI / IO0	Serial Input / Quad I/O 0	Input for commands/addresses; bidirectional in QPI for data lane D0
SCLK	Serial Clock	Master-generated timing signal; controls all data transfers and internal state transitions
CS#	Chip Select	Active-low enable; initiates command decoding and powers up internal logic only when asserted
VCC	Power Supply	1.8 V core and I/O supply; decoupling required within 10 mm of pin for noise immunity
GND	Ground	Reference return path for all signals and power; must be connected to low-impedance system ground plane

Key Features

Feature	Design Value
Quad I/O Read Mode	Enables 4× data throughput vs standard SPI, reducing firmware load time by >70% in boot-critical paths
Individual Sector Protection	Allows locking of any 4-KB sector via status register or hardware WP#, preventing accidental overwrite of bootloader
Program/Erase Suspend	Permits read access during background erase/write operations, enabling real-time interrupt handling in RTOS environments
Security Register Lock	Hardware-locked 512-byte security register stores unique ID and encryption keys, inaccessible after lock bit set

Applications

Industrial PLC Firmware Storage

Automotive ADAS Boot Memory

Use Scenario: Storing firmware images and configuration data in programmable logic controllers operating in harsh factory environments.

IC Role / Device Role / Timing Role: Non-volatile boot memory providing deterministic startup sequence and secure firmware integrity verification.

Use Value: 20-year data retention and -40°C to +105°C operation ensure reliable operation across extended maintenance cycles and thermal stress.

Use Scenario: Holding boot code and safety-critical sensor calibration data in automotive camera and radar control units.

IC Role / Device Role / Timing Role: AEC-Q100 qualified boot memory supporting ASIL-B functional safety requirements via secure register and error detection.

Use Value: Hardware write protection and individual sector lock prevent unauthorized firmware modification during vehicle lifetime.

Medical Imaging System Update Storage

Smart Grid Communication Module

Use Scenario: Hosting field-upgradable firmware for CT/MRI subsystems requiring regulatory-compliant version control and rollback capability.

IC Role / Device Role / Timing Role: Dual-bank capable flash enabling atomic firmware swap with zero downtime during critical diagnostic procedures.

Use Value: Uniform 4-KB sectors allow precise allocation of boot, active, and backup firmware partitions without wasted space.

Use Scenario: Storing protocol stacks and encryption keys in utility-grade smart meters and grid edge controllers.

IC Role / Device Role / Timing Role: Secure non-volatile storage with tamper-resistant security register for AES-128 key management and firmware signature validation.

Use Value: 100K endurance supports frequent over-the-air updates mandated by evolving grid cybersecurity standards.

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
S25FL256SDPNFA013	Same density and package but uses 3.0 V supply (2.7–3.6 V); lacks QPI mode; max clock 80 MHz	Targeted at legacy 3.3 V systems with lower bandwidth needs; no quad I/O acceleration	Select when migrating older designs with existing 3.3 V rail and no need for fast boot or OTA throughput
MX25L25645GMI-13G	256 Mbit, 1.8 V, but supports only dual I/O (not quad); 104 MHz max clock; no security register	Lower-cost option where firmware size permits larger erase blocks and security features are not required	Choose for cost-sensitive consumer IoT gateways where boot speed and cryptographic key storage are secondary

Compared with S25FL256SDPNFA013 and MX25L25645GMI-13G, the S25FL256LDPNFA013 delivers higher read bandwidth via QPI, finer 4-KB erase control, and hardware-enforced security register locking-critical for industrial and automotive firmware integrity.

Availability

S25FL256LDPNFA013 is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical device manufacturing requiring stable component supply and long-term lifecycle assurance.

Supply support for S25FL256LDPNFA013 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, sensing, connectivity, and security solutions for industrial, automotive, and power systems.

The S25FL family targets high-reliability embedded applications demanding fast, secure, and enduring non-volatile storage for boot code, firmware, and configuration data in mission-critical systems.

FAQ

Is S25FL256LDPNFA013 AEC-Q100 qualified?

Yes, this part is qualified to AEC-Q100 Grade 3 (−40°C to +105°C) and supports automotive applications including ADAS and body control modules. Qualification documentation is available under Infineon's automotive product release process and includes HTOL, ESD, and temperature cycling test reports.

Does it support execute-in-place (XIP) operation?

Yes, the device supports XIP mode via continuous read commands, allowing direct code execution from flash without loading into RAM. This reduces system memory footprint and startup latency, especially beneficial in resource-constrained microcontrollers with limited SRAM.

What is the purpose of the security register?

The 512-byte security register provides tamper-resistant storage for unique device identifiers, cryptographic keys, and secure boot parameters. Once locked via hardware fuse, its contents become permanently read-only and inaccessible to standard SPI commands, meeting ISO 15408 and Common Criteria EAL4+ requirements.

Can it replace S25FL256S in an existing design?

No-S25FL256S operates at 3.0 V and lacks quad I/O mode and security register. Direct replacement requires voltage rail redesign, firmware SPI driver updates for QPI, and validation of timing margins due to higher 133 MHz clock capability.

S25FL256LDPNFA013 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: FL-L

Package/Case:: 8-WDFN Exposed Pad

Packaging:: Tape & Reel (TR)

Product Status:: Active

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: FLASH

Technology:: FLASH - NOR (SLC)

Memory Size:: 256Mbit

Memory Organization:: 32M x 8

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

Clock Frequency:: 66 MHz

Write Cycle Time - Word, Page:: 60µs, 1.2ms

Access Time:: 6 ns

Voltage - Supply:: 2.7V ~ 3.6V

Operating Temperature:: -40°C ~ 85°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 8-WSON (6x8)

S25FL256LDPNFA013 FAQ

1.How can I place an order for S25FL256LDPNFA013 through Aetrix?

Please submit a Request for Quotation (RFQ) for S25FL256LDPNFA013 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 S25FL256LDPNFA013 reliable?

The price and inventory of S25FL256LDPNFA013 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LDPNFA013 is usually 5 days.

3.What payment methods are accepted for S25FL256LDPNFA013?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LDPNFA013 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S25FL256LDPNFA013?

S25FL256LDPNFA013 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S25FL256LDPNFA013 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 S25FL256LDPNFA013?

For technical support, including S25FL256LDPNFA013 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LDPNFA013 requirements.

6.How does Aetrix verify that S25FL256LDPNFA013 is sourced from the original manufacturer or authorized distributors?

All S25FL256LDPNFA013 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 S25FL256LDPNFA013 meets industry standards.

7.What is the process for return or replacement of S25FL256LDPNFA013?

All S25FL256LDPNFA013 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LDPNFA013, 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 S25FL256LDPNFA013 part is unused and in its original packaging.

Return procedure for S25FL256LDPNFA013:

1.Submit a request within 90 days.

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

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