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Infineon Technologies S25FL256LDPMFN003
- Part No.:
- S25FL256LDPMFN003
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
S25FL256LDPMFN003.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,149
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Product details
Overview
S25FL256LDPMFN003 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 in embedded boot loaders and firmware update partitions.
For engineers reviewing the S25FL256LDPMFN003 datasheet, S25FL256LDPMFN003 pinout, S25FL256LDPMFN003 application, or S25FL256LDPMFN003 equivalent, key selection criteria include quad read throughput (66 MB/s), SFDP support for auto-configuration, security region protection, suspend/resume erase/program capability, and WSON-8 package compatibility with space-constrained PCB layouts.
Technical Context
The S25FL256LDPMFN003 implements a 65 nm floating gate architecture with a 256-byte page programming buffer and hierarchical erase granularity: 4 KB sectors, 32 KB half-blocks, and 64 KB blocks. Its command set includes JEDEC JESD216B-compliant SFDP for runtime configuration discovery.
It supports four SPI clock modes (0 and 3), dual/quad I/O data transfers, and DDR read operations on both clock edges. Security is enforced via four 256-byte non-volatile security regions, individual block lock, and power supply lock-down or password-based protection of Regions 2/3 and the Pointer Region.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 Mbyte) - sufficient for full bootloader + secure firmware image in resource-constrained microcontrollers |
| Interface | SPI Multi-I/O with SDR/DDR Quad I/O and QPI - enables 66 MB/s read bandwidth matching parallel NOR performance using only 6 pins |
| Erase Granularity | Uniform 4 KB sectors, 32 KB half-blocks, 64 KB blocks - allows fine-grained firmware partitioning without over-erasing |
| Endurance | 100,000 program-erase cycles - supports frequent field updates in industrial control and gateway applications |
| Data Retention | 20 years typical at 85°C - ensures long-term reliability in unattended edge devices |
| Supply Voltage | 2.7 V to 3.6 V - compatible with standard 3.3 V logic rails and brown-out tolerant operation |
| Temperature Range | –40°C to +85°C (Industrial) - validated for deployment in automotive body control modules and industrial HMIs |
Pinout & Package
Package: 8-pin WSON (6 mm × 8 mm, PN: WNH008), RoHS-compliant, moisture sensitivity level 3.
| 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 transactions; supports up to 133 MHz SDR or 66 MHz DDR operation |
| IO0 (SI) | Serial Input / IO0 | Single-bit input in standard SPI mode; becomes bidirectional IO0 in Dual/Quad modes for address/data transfer |
| IO1 (SO) | Serial Output / IO1 | Single-bit output in standard SPI mode; becomes bidirectional IO1 in Dual/Quad modes for data readback |
| IO2 (WP#) | Write Protect / IO2 | Hardware write protection when CR1V[1]=0; functions as IO2 in Quad mode; internal pull-up allows NC if unused |
| IO3 (RESET#) | Reset / IO3 | Hardware reset input when not in Quad/QPI; serves as IO3 in Quad-I/O or QPI modes; internal pull-up enables NC usage |
| VDD | Power Supply | 2.7–3.6 V core and I/O supply; decoupling capacitor required within 10 mm of pin per layout guidelines |
| VSS | Ground | Dedicated signal ground return; must be connected to low-impedance PCB plane to minimize noise coupling into SPI signals |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Enables single-cycle command/address/data transfer reducing instruction overhead and improving XIP efficiency in real-time systems |
| Erase/Program Suspend & Resume | Allows background erase or program to pause for high-priority interrupt service, then resume - critical for deterministic latency in safety-critical firmware |
| Serial Flash Discoverable Parameters (SFDP) | JEDEC JESD216B-compliant register map enables automatic driver initialization without hard-coded timing or geometry assumptions |
| Four 256-byte Security Regions | Provide isolated, non-volatile storage for cryptographic keys, device IDs, or calibration data independent of main array - prevents accidental overwrite during firmware updates |
| Uniform 4 KB Sector Erase | Eliminates need for large-block erase before small-data updates, reducing wear leveling complexity and enabling atomic parameter storage |
Applications
| Boot Code Storage | Firmware Update Partition |
|---|---|
Use Scenario: Storing primary bootloader and initial firmware image executed directly from flash (XIP) on ARM Cortex-M or RISC-V SoCs. IC Role / Device Role / Timing Role: Non-volatile code execution medium with deterministic read latency and fast random access to instruction opcodes. Use Value: Eliminates external parallel NOR requirement while delivering 66 MB/s quad read bandwidth - reduces BOM count and PCB area by >40%. | Use Scenario: Dedicated flash partition holding delta firmware patches updated over CAN or Ethernet in automotive ECUs. IC Role / Device Role / Timing Role: Secure, field-upgradable storage with individual 4 KB sector lock and suspend/resume erase to avoid interrupt latency spikes. Use Value: Enables atomic patch application with verified integrity and rollback capability - meets ISO 26262 ASIL-B software update requirements. |
| Secure Key Vault | Industrial HMI Configuration |
Use Scenario: Isolated storage of AES-256 keys, device certificates, and secure boot manifests in medical IoT gateways. IC Role / Device Role / Timing Role: Tamper-resistant non-volatile memory with hardware-enforced write lock-down and password protection of Security Regions 2/3. Use Value: Prevents unauthorized key extraction during physical probing - satisfies FIPS 140-2 Level 2 cryptographic module requirements. | Use Scenario: Persistent storage of display calibration tables, language assets, and user preferences in factory-floor HMIs operating at 85°C ambient. IC Role / Device Role / Timing Role: High-retention (20 yr @ 85°C), temperature-stable flash with 4 KB sector granularity for infrequent but critical parameter writes. Use Value: Guarantees configuration persistence across 10+ years of continuous operation without battery-backed SRAM - reduces field service cost. |
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 |
|---|---|---|---|
| S25FL256L0XMFI001 | Same die, 16-pin SOIC-300 package - larger footprint, lower thermal dissipation, no WSON thermal pad | Preferred for prototyping or legacy board reuse where WSON reflow is unavailable | Select when manual soldering or socket-based validation is required; avoid for high-density production boards |
| MX25L25673EMI-10G | Macronix part with identical 256 Mbit density, 3.3 V supply, and QPI support but lacks DDR read mode and SFDP v1.6 compliance | Acceptable for basic XIP boot where DDR bandwidth and auto-configuration are not needed | Choose only if cost sensitivity outweighs need for suspend/resume, security regions, or JEDEC-standardized parameter discovery |
Compared with S25FL256L0XMFI001, the S25FL256LDPMFN003 offers superior thermal performance and PCB area savings in WSON-8, while MX25L25673EMI-10G trades advanced features like DDR read and SFDP for lower unit cost - making it suitable only for non-safety-critical, static firmware deployments.
Availability
S25FL256LDPMFN003 is available at Aetrix Electronics and suitable for industrial HMIs, automotive ECU boot storage, and medical IoT gateway firmware partitions requiring stable component supply, long-life availability, and guaranteed traceability.
Supply support for S25FL256LDPMFN003 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-reliability non-volatile memory and programmable system-on-chip solutions for industrial, automotive, and communications markets.
The FL-L family targets space-constrained embedded systems needing high-speed serial flash with robust security, endurance, and JEDEC-standardized configurability - specifically addressing boot code, firmware update, and secure key storage needs.
FAQ
What is the maximum clock frequency supported in Quad I/O DDR mode?
The S25FL256LDPMFN003 supports DDR Quad I/O operation at up to 66 MHz clock frequency, delivering 66 MB/s effective read bandwidth. This is confirmed in the Performance Summary table on 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 execute-in-place (XIP) operation?
Yes, the S25FL256LDPMFN003 supports XIP via Continuous Read mode and QPI interface, enabling direct CPU instruction fetch from flash without copying to RAM. The datasheet explicitly lists "Continuous (XIP)" under Read Modes (page 1), and the FL-L Family Overview confirms suitability for "executing code directly (XIP)" on page 4.
How many security regions does the S25FL256LDPMFN003 provide, and what is their size?
The device provides four dedicated security regions, each 256 bytes in size, located outside the main flash array. These are documented in the Features section (page 1) and elaborated in Section 8.1 (Security Regions) on page 62 of the datasheet, where they are described as non-volatile, individually protectable, and usable for keys or credentials.
Is the WSON-8 package lead-free and RoHS compliant?
Yes, the S25FL256LDPMFN003 uses a Pb-free WSON-8 package (PN: WNH008) as stated in the "Packages (all Pb-free)" bullet on page 1 of the datasheet. The "P" in the part number suffix denotes lead-free packaging, and Cypress confirms RoHS compliance for all FL-L family WSON variants in their official product change notices.
S25FL256LDPMFN003 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL-L
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- 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 ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
S25FL256LDPMFN003 FAQ
1.How can I place an order for S25FL256LDPMFN003 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL256LDPMFN003 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 S25FL256LDPMFN003 reliable?
The price and inventory of S25FL256LDPMFN003 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LDPMFN003 is usually 5 days.
3.What payment methods are accepted for S25FL256LDPMFN003?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LDPMFN003 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL256LDPMFN003?
S25FL256LDPMFN003 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL256LDPMFN003 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 S25FL256LDPMFN003?
For technical support, including S25FL256LDPMFN003 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LDPMFN003 requirements.
6.How does Aetrix verify that S25FL256LDPMFN003 is sourced from the original manufacturer or authorized distributors?
All S25FL256LDPMFN003 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 S25FL256LDPMFN003 meets industry standards.
7.What is the process for return or replacement of S25FL256LDPMFN003?
All S25FL256LDPMFN003 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LDPMFN003, 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 S25FL256LDPMFN003 part is unused and in its original packaging.
Return procedure for S25FL256LDPMFN003:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FL256LDPMFN003 Tags
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