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Infineon Technologies S25FL256LDPMFN001
- Part No.:
- S25FL256LDPMFN001
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
S25FL256LDPMFN001.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,650
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Product details
Overview
S25FL256LDPMFN001 from Cypress Semiconductor is a 256 Mbit (32 Mbyte) 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 systems requiring XIP execution or firmware updates.
For engineers reviewing the S25FL256LDPMFN001 datasheet, S25FL256LDPMFN001 pinout, S25FL256LDPMFN001 application, or S25FL256LDPMFN001 equivalent, key selection criteria include quad-read throughput (66 MB/s), security region protection (four 256-byte regions), SFDP compliance, and compatibility with legacy S25FL-P/S families.
Technical Context
The S25FL256LDPMFN001 implements a 65 nm floating gate architecture with a 256-byte page programming buffer and hierarchical erase granularity (4KB sector / 32KB half-block / 64KB block / chip). Its command set supports both legacy SPI single-I/O and extended multi-I/O protocols including DDR Quad I/O at 66 MHz clock rate.
Hardware reset (RESET#) and write protect (WP#) are dual-function pins configurable via Configuration Register bits; IO3 serves as either RESET# or IO3 depending on QUAD/QPI mode activation. Security is enforced through volatile/non-volatile sector locking, power supply lock-down, and password-protected Security Regions 2–3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 Mbyte) - sufficient for full bootloader + application image in space-constrained embedded designs |
| Interface Modes | SDR SPI, Dual I/O, Quad I/O, QPI, DDR Quad I/O - enables scalable bandwidth from 6.25 MB/s to 66 MB/s |
| Erase Granularity | Uniform 4KB sectors - allows fine-grained firmware patching without disturbing adjacent code |
| Endurance | 100,000 program-erase cycles - supports field firmware updates over product lifetime |
| Data Retention | 20 years typical - ensures long-term reliability in unpowered storage applications |
| 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 operation in automotive ECUs and industrial controllers |
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 decoding; must be asserted before SCK edge to initiate transaction |
| SCK | Serial Clock Input | Provides timing reference for all SPI transfers; supports up to 133 MHz SDR or 66 MHz DDR |
| SI / IO0 | Serial Input / Quad I/O 0 | Single-bit data input in SPI mode; lowest-order bidirectional data line in Quad I/O mode |
| SO / IO1 | Serial Output / Quad I/O 1 | Single-bit data output in SPI mode; second bidirectional data line in Quad I/O mode |
| WP# / IO2 | Write Protect Input / Quad I/O 2 | Hardware write lock when CR1V[1]=0; becomes IO2 in Quad mode per configuration register setting |
| IO3 / RESET# | Quad I/O 3 / Hardware Reset | Functions as IO3 during active Quad/QPI commands; asserts internal reset when driven low externally or via CR2V[7] |
| VDD | Power Supply | Primary 2.7–3.6 V supply; powers core logic and I/O buffers |
| VSS | Ground | Signal and power return path; requires low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Serial Flash Discoverable Parameters (SFDP) | JEDEC JESD216B-compliant parameter table enables automatic host configuration without hard-coded timing values |
| Program/Erase Suspend & Resume | Allows background read operations during long erase or program sequences - critical for real-time system responsiveness |
| Four Independent Security Regions | Each 256 bytes outside main array - isolates cryptographic keys or calibration data from firmware updates |
| Legacy SPI Footprint Compatibility | Pin- and command-compatible with S25FL-P/S families - simplifies migration from prior-generation flash |
| Deep Power Down Mode | 2 µA typical current draw - extends battery life in always-on IoT sensor nodes |
Applications
| Boot Code Storage | Firmware Update Storage |
|---|---|
Use Scenario: Storing primary bootloader and initial firmware image in microcontroller-based edge devices. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable continuous read mode for fast startup. Use Value: Eliminates need for external parallel NOR flash; reduces PCB layer count and BOM cost while maintaining >66 MB/s read bandwidth. | Use Scenario: Holding field-upgradable application binaries in industrial gateways with secure OTA capability. IC Role / Device Role / Timing Role: Secure, sector-erasable storage for signed firmware images with rollback protection. Use Value: 4KB uniform erase enables atomic patch deployment; security regions store root-of-trust keys separately from executable code. |
| Configuration Data Logging | Real-Time OS Kernel Image |
Use Scenario: Recording device-specific calibration parameters and runtime logs in medical diagnostic equipment. IC Role / Device Role / Timing Role: High-endurance reprogrammable storage for infrequent but critical data writes. Use Value: 100,000 program-erase cycles ensure >10-year service life under daily configuration updates. | Use Scenario: Hosting RTOS kernel and driver modules in automotive ADAS domain controllers. IC Role / Device Role / Timing Role: Low-latency, deterministic code fetch source supporting XIP execution. Use Value: Fast Read (133 MHz) and Quad I/O deliver sustained 66 MB/s throughput - matching parallel NOR performance with 6-pin interface. |
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; lacks DDR Quad I/O and SFDP support | Lower max read speed (52 MB/s); no hardware erase suspend/resume | Select only if legacy FL-S footprint reuse is required and DDR/QPI features are unused |
| MX25L25645GMI-10G | Macronix part; 256 Mbit, SOIC-16, 3.3 V; supports QPI but no DDR mode | Higher program time (1.2 ms/page vs. 0.3 ms); no security regions or pointer region | Choose when cost sensitivity outweighs security and DDR performance requirements |
Compared with S25FL256SAGMFV001 and MX25L25645GMI-10G, the S25FL256LDPMFN001 uniquely delivers DDR Quad I/O bandwidth, SFDP auto-configuration, and four dedicated security regions - making it optimal for secure, high-performance embedded boot applications where firmware integrity and fast code fetch are mandatory.
Availability
S25FL256LDPMFN001 is available at Aetrix Electronics and suitable for boot code storage, firmware update storage, and configuration data logging requiring stable component supply across automotive, industrial control, and medical electronics programs.
Supply support for S25FL256LDPMFN001 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 automotive, industrial, and consumer applications.
The FL-L family targets high-density, high-speed serial flash replacement for parallel NOR in resource-constrained embedded systems - emphasizing security, endurance, and seamless migration from legacy SPI flash families.
FAQ
Does S25FL256LDPMFN001 support execute-in-place (XIP) operation?
Yes. The device supports Continuous Read mode with wrap-around burst addressing, enabling direct code execution from flash without copying to RAM. This is confirmed in the "Read" section of the datasheet (Document Number 002-00124 Rev. *A, Page 2), which lists "Continuous (XIP)" as a supported read mode with Fast, Dual, and Quad I/O variants.
What is the function of the IO3/RESET# pin in Quad I/O mode?
In Quad I/O mode (CR1V[1] = 1), IO3/RESET# functions exclusively as IO3 - the fourth bidirectional data line. RESET# functionality is disabled unless CR2V[7] = 1 and the device is not in Quad or QPI mode. This behavior is defined in Section 2.8 of the datasheet (Page 8) and verified in the signal description table.
How many security regions does S25FL256LDPMFN001 provide, and what is their size?
The device provides four independent security regions, each 256 bytes in size and located outside the main flash array. These regions support non-volatile locking, password protection, and power supply lock-down - detailed in Sections 1.1 and 8.1 of the datasheet (Pages 4 and 62).
Is S25FL256LDPMFN001 pin-compatible with earlier S25FL-P series devices?
Yes. The SOIC-16 package variant (S25FL256LDPMFN001) maintains identical pinout and footprint with S25FL-P series devices such as S25FL256P. This compatibility is explicitly stated in the "Migration Notes" section (Page 5) and confirmed in Table 1.1 (Page 5) of the datasheet.
S25FL256LDPMFN001 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:
- 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
S25FL256LDPMFN001 FAQ
1.How can I place an order for S25FL256LDPMFN001 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL256LDPMFN001 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 S25FL256LDPMFN001 reliable?
The price and inventory of S25FL256LDPMFN001 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LDPMFN001 is usually 5 days.
3.What payment methods are accepted for S25FL256LDPMFN001?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LDPMFN001 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL256LDPMFN001?
S25FL256LDPMFN001 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL256LDPMFN001 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 S25FL256LDPMFN001?
For technical support, including S25FL256LDPMFN001 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LDPMFN001 requirements.
6.How does Aetrix verify that S25FL256LDPMFN001 is sourced from the original manufacturer or authorized distributors?
All S25FL256LDPMFN001 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 S25FL256LDPMFN001 meets industry standards.
7.What is the process for return or replacement of S25FL256LDPMFN001?
All S25FL256LDPMFN001 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LDPMFN001, 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 S25FL256LDPMFN001 part is unused and in its original packaging.
Return procedure for S25FL256LDPMFN001:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FL256LDPMFN001 Tags
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STMicroelectronics
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