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Infineon Technologies S25FL256LDPNFI011
- Part No.:
- S25FL256LDPNFI011
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
S25FL256LDPNFI011.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,438
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Product details
Overview
S25FL256LDPNFI011 from Infineon is a 256-Mbit serial NOR flash memory with Quad SPI interface, 1.8 V supply voltage, 133 MHz read clock frequency, and uniform 256-byte programmable sectors. It supports XIP (execute-in-place) operation in embedded microcontroller boot applications.
For engineers reviewing the S25FL256LDPNFI011 datasheet, S25FL256LDPNFI011 pinout, S25FL256LDPNFI011 application, or S25FL256LDPNFI011 equivalent, key selection criteria include sector architecture compatibility, Quad SPI timing compliance, 1.8 V I/O tolerance, 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 features a 32-bit address space, configurable write protection via status registers, and hardware reset capability through the RESET# pin.
Internal architecture includes a 256-byte page buffer for fast program operations and a dedicated 4-KB parameter sector for storing configuration data. Erase granularity supports 4-KB, 32-KB, and 64-KB blocks alongside uniform 256-byte sectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 MB), sufficient for firmware images up to ~30 MB with overhead |
| Interface | Quad SPI (QPI) and standard SPI, enabling 532 MB/s peak throughput in QPI mode |
| Supply Voltage | 1.7–1.95 V core/I/O, compatible with low-power 1.8 V system rails |
| Read Clock Frequency | Up to 133 MHz, supporting fast boot code execution from flash |
| Temperature Range | –40°C to +105°C, qualified for industrial and automotive under-hood applications |
| Erase Granularity | Uniform 256-byte sectors plus 4/32/64 KB blocks, enabling fine-grained firmware updates |
Pinout & Package
Package: 8-pin SOIC (300 mil, PN suffix), surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SO/IO1 | Serial Output / Quad I/O Line 1 | Outputs data during standard SPI reads; functions as bidirectional I/O in QPI mode |
| SI/IO0 | Serial Input / Quad I/O Line 0 | Accepts commands and addresses in SPI mode; bidirectional in QPI |
| WP#/IO2 | Write Protect / Quad I/O Line 2 | Hardware write protection when pulled low; I/O line in QPI |
| HOLD#/IO3 | Hold Input / Quad I/O Line 3 | Suspends ongoing transfers without chip deselect; I/O line in QPI |
| CLK | Serial Clock Input | Drives all synchronous operations; max 133 MHz frequency supported |
| CS# | Chip Select Input | Active-low enable for command decoding and bus arbitration |
| VCC | Power Supply | 1.8 V nominal supply; decoupling required per JEDEC JESD22-B109 |
| GND | Ground Reference | Signal and power return path; must be low-impedance connection |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI (QPI) Mode | Enables 4-bit-wide data transfers, doubling bandwidth over dual-SPI and quadrupling over standard SPI |
| Uniform 256-Byte Sectors | Allows precise firmware patching without erasing adjacent functional code or configuration data |
| Hardware Reset (RESET#) | Provides deterministic recovery from lockup states without requiring power cycle |
| Program/Erase Suspend | Permits background erase to pause while servicing high-priority read requests |
| Security Register Lock | Prevents unauthorized modification of protection bits and configuration settings |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing firmware and configuration tables for programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Non-volatile boot memory providing XIP-capable instruction storage for ARM Cortex-M7 microcontrollers. Use Value: Uniform 256-byte sectors allow field-upgradable control logic without full reflash, reducing downtime. | Use Scenario: Holding boot code and safety-critical calibration data for radar processing units in autonomous driving systems. IC Role / Device Role / Timing Role: High-reliability serial NOR flash with AEC-Q100 Grade 2 qualification and -40°C to +105°C operation. Use Value: 133 MHz Quad SPI read speed enables sub-100 ms cold boot time for ISO 26262 ASIL-B compliant modules. |
| Medical Imaging System BIOS | Networking Equipment Configuration |
Use Scenario: Storing boot firmware and device-specific calibration parameters for MRI and CT scanner mainboards. IC Role / Device Role / Timing Role: Secure, long-retention non-volatile memory with hardware write protection for regulatory-compliant firmware integrity. Use Value: Security register lock prevents tampering with FDA-required boot validation signatures. | Use Scenario: Retaining routing tables, MAC addresses, and feature license keys in enterprise switches and routers. IC Role / Device Role / Timing Role: Parameter storage with 4-KB dedicated sector for fast, atomic updates of network configuration data. Use Value: Sector-level erase independence ensures zero packet loss during live configuration reloads. |
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 |
|---|---|---|---|
| S25FL256SDPNFI001 | Same density and package but uses legacy SPI-only interface (no QPI mode); lower max clock (80 MHz) | Lacks Quad SPI bandwidth; unsuitable for XIP-critical boot paths requiring >100 MB/s throughput | Select only if system controller lacks QPI support and bandwidth demand ≤64 MB/s |
| MX25L25673EZN-13G | 256 Mbit, 1.8 V, but rated only to +85°C; no hardware RESET# pin; different sector map (4-KB min erase) | Not qualified for extended temperature industrial or automotive under-hood use | Use only in commercial-temperature consumer or office equipment with simpler erase requirements |
Compared with S25FL256SDPNFI001 and MX25L25673EZN-13G, the S25FL256LDPNFI011 uniquely delivers QPI-enabled 133 MHz performance with industrial temperature rating and hardware reset - critical for deterministic boot in safety-aware systems.
Availability
S25FL256LDPNFI011 is available at Aetrix Electronics and suitable for industrial automation, automotive ADAS, medical imaging, and networking equipment requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for S25FL256LDPNFI011 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 industrial, automotive, and IoT applications.
This part belongs to the S25FL-L family of high-performance, low-voltage serial NOR flash memories designed specifically for reliable boot code storage and firmware update in resource-constrained embedded systems.
FAQ
What is the maximum clock frequency supported in Quad SPI mode?
The S25FL256LDPNFI011 supports up to 133 MHz in Quad SPI (QPI) mode, delivering up to 532 MB/s effective throughput. This frequency is specified under 1.8 V supply and industrial temperature conditions, and requires proper PCB layout with matched trace lengths and controlled impedance.
Does this device support execute-in-place (XIP) operation?
Yes, the S25FL256LDPNFI011 supports XIP operation in both standard SPI and Quad SPI modes. Its fast random access time (≤8 ns) and continuous read capability enable direct CPU instruction fetch from flash without copying to RAM, reducing boot latency and memory footprint.
How is write protection implemented on this flash memory?
Write protection is implemented via three mechanisms: software-controlled status register bits (BP0–BP3), hardware WP# pin assertion, and a one-time programmable (OTP) security register. The WP# pin provides immediate, physical lockout of all program/erase commands when pulled low.
Is the RESET# pin mandatory for normal operation?
No, the RESET# pin is optional but recommended for robust system recovery. When left unconnected or tied high, the device operates normally after power-on reset. However, asserting RESET# guarantees known state recovery during runtime faults, especially in safety-critical applications where deterministic reset behavior is required.
S25FL256LDPNFI011 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL-L
- Package/Case:
- 8-WDFN Exposed Pad
- 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:
- 66 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (6x8)
S25FL256LDPNFI011 FAQ
1.How can I place an order for S25FL256LDPNFI011 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL256LDPNFI011 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 S25FL256LDPNFI011 reliable?
The price and inventory of S25FL256LDPNFI011 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LDPNFI011 is usually 5 days.
3.What payment methods are accepted for S25FL256LDPNFI011?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LDPNFI011 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL256LDPNFI011?
S25FL256LDPNFI011 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL256LDPNFI011 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 S25FL256LDPNFI011?
For technical support, including S25FL256LDPNFI011 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LDPNFI011 requirements.
6.How does Aetrix verify that S25FL256LDPNFI011 is sourced from the original manufacturer or authorized distributors?
All S25FL256LDPNFI011 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 S25FL256LDPNFI011 meets industry standards.
7.What is the process for return or replacement of S25FL256LDPNFI011?
All S25FL256LDPNFI011 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LDPNFI011, 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 S25FL256LDPNFI011 part is unused and in its original packaging.
Return procedure for S25FL256LDPNFI011:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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