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Infineon Technologies S25FL256LDPMFN000
- Part No.:
- S25FL256LDPMFN000
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
S25FL256LDPMFN000.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,379
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Product details
Overview
S25FL256LDPMFN000 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/data storage in microcontroller boot loaders and embedded firmware images.
For engineers reviewing the S25FL256LDPMFN000 datasheet, S25FL256LDPMFN000 pinout, S25FL256LDPMFN000 application, or S25FL256LDPMFN000 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 compatibility with legacy S25FL-P/S families.
Technical Context
This device implements a 65 nm floating gate architecture with a 256-byte page programming buffer and uniform erase granularity across 4 KB sectors, 32 KB half-blocks, and 64 KB blocks. It supports JEDEC JESD216B SFDP for runtime parameter discovery and configurable protection via status/configuration registers.
Hardware reset (RESET#) and dual-function I/O pins (IO0–IO3) enable mode-selectable operation: standard SPI, Dual I/O, Quad I/O, or QPI - with DDR variants doubling data rate on clock edges. Power supply lock-down and password-protected security regions (four × 256 B) provide tamper-resistant firmware storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 Mbyte) - sufficient for full MCU boot image + configuration + OTA update partition |
| Interface Modes | SDR/QPI/Dual/Quad I/O + DDR Quad - enables flexible host controller compatibility and bandwidth scaling |
| Max Read Throughput | 66 MB/s (Quad I/O @ 133 MHz SDR or DDR @ 66 MHz) - matches parallel NOR performance with 6-pin interface |
| Erase Granularity | Uniform 4 KB sectors - allows fine-grained firmware updates without disturbing adjacent code sections |
| Endurance & Retention | 100,000 cycles / 20 years - validated for industrial firmware logging and field-upgrade applications |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic systems and tolerant of rail droop during high-current operations |
| Temperature Range | –40°C to +85°C (Industrial) - qualified for automotive body control modules and industrial HMIs |
Pinout & Package
Package: 16-pin SOIC 300 mil (SO3016), Pb-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for command decoding; must be asserted before each instruction sequence |
| SCK | Serial Clock | Input clock for all SPI transactions; supports modes 0 and 3; DDR uses both edges |
| SI / IO0 | Serial Input / I/O 0 | Single-bit input or bidirectional data lane 0 in multi-I/O modes; internal pull-up |
| SO / IO1 | Serial Output / I/O 1 | Single-bit output or bidirectional data lane 1; used for Dual/Quad reads and writes |
| WP# / IO2 | Write Protect / I/O 2 | Hardware write lock when CR1V[1]=0; becomes IO2 in Quad mode; internal pull-up |
| IO3 / RESET# | I/O 3 / Hardware Reset | Multi-function: IO3 in Quad/QPI; RESET# when enabled by CR2V[7]; internal pull-up |
| VDD | Power Supply | Core and I/O supply (2.7–3.6 V); decoupling required per layout guidelines |
| VSS | Ground | Signal and power ground reference; low-impedance return path essential for signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Enables single-cycle command/address/data transfer, reducing instruction overhead vs. standard SPI |
| Serial Flash Discoverable Parameters (SFDP) | JEDEC JESD216B-compliant register map allows host to auto-detect timing, density, and protection features |
| Program/Erase Suspend & Resume | Permits background operation interruption (e.g., servicing real-time interrupt) without data loss or timeout failure |
| Four 256-byte Security Regions | Independent lockable areas outside main array for secure keys, certificates, or bootloader secrets |
| Power Supply Lock-down Protection | Prevents unauthorized reprogramming during voltage glitch or brown-out conditions |
Applications
| Boot Code Storage | Firmware Update Partition |
|---|---|
Use Scenario: Storing primary bootloader and initial firmware image for ARM Cortex-M or RISC-V microcontrollers. IC Role / Device Role / Timing Role: Non-volatile code execution source with XIP (eXecute-In-Place) support and fast read burst wrap mode. Use Value: Eliminates need for external RAM copy; reduces boot time by >30% vs. slower serial flash alternatives. | Use Scenario: Dedicated 4 KB–64 KB region for over-the-air (OTA) firmware patches in connected IoT edge devices. IC Role / Device Role / Timing Role: Isolated, individually erasable partition enabling atomic update rollback and version validation. Use Value: Enables safe field updates without corrupting running application or requiring full chip erase. |
| Secure Key Vault | Industrial HMI Configuration |
Use Scenario: Storing cryptographic keys, device identity certificates, and secure boot hashes in medical or industrial controllers. IC Role / Device Role / Timing Role: Tamper-resistant storage using password-locked security regions and power supply lock-down. Use Value: Meets IEC 62443-3-3 SL2 requirements for protected credential storage without external TPM. | Use Scenario: Persistent storage of display layouts, language packs, calibration data, and user preferences in factory HMIs. IC Role / Device Role / Timing Role: High-endurance, temperature-stable non-volatile memory supporting frequent small writes. Use Value: Guarantees 100,000+ write cycles at 85°C ambient - exceeds typical HMI lifecycle requirements. |
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 |
|---|---|---|---|
| S25FL256LDPNFM000 | Same die, WSON-8 (6×8 mm) package instead of SOIC-16; 20% smaller footprint | Better suited for space-constrained PCBs; requires different land pattern and thermal relief | Select for compact designs where board area is critical and rework access is limited |
| MX25L25645GMI-10G | Macronix part; 256 Mbit, 3V, SOIC-16; lacks DDR read mode and SFDP v1.6 support | No native QPI or DDR; lower max read speed (52 MB/s); no suspend/resume for erase | Choose when cost sensitivity outweighs advanced features and legacy SPI-only host interface exists |
Compared with S25FL256LDPNFM000 and MX25L25645GMI-10G, the S25FL256LDPMFN000 offers superior flexibility via QPI/DDR modes and robust field-upgrade safety through suspend/resume and dedicated security regions - making it optimal for next-generation secure embedded systems.
Availability
S25FL256LDPMFN000 is available at Aetrix Electronics and suitable for boot code storage, firmware update partitions, secure key vaults, and industrial HMI configuration requiring stable component supply across extended product lifecycles.
Supply support for S25FL256LDPMFN000 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 memory and programmable solutions for embedded systems, automotive, and industrial markets.
The FL-L family targets high-reliability, code-storage-critical applications demanding fast read speeds, flexible interfaces, and hardware-enforced security - bridging the gap between legacy serial flash and parallel NOR performance.
FAQ
What is the maximum clock frequency supported in Quad I/O SDR mode?
The S25FL256LDPMFN000 supports up to 133 MHz in Quad I/O SDR mode, delivering 66 MB/s read throughput. This is confirmed in the Performance Summary table (Page 2) and AC Characteristics section (Page 33) of the official datasheet. The device maintains timing compliance across the full industrial temperature range without derating.
Does this part support execute-in-place (XIP) operation?
Yes, the S25FL256LDPMFN000 supports XIP via Continuous Read mode with burst wrap, allowing direct code execution from flash without copying to RAM. This capability is explicitly stated in Section 1.1 and enabled by fast Quad Read and low-latency command sequencing - verified in Application Note AN98564.
How many security regions does this device have, and what is their physical location?
The device contains four independent 256-byte security regions located outside the main flash array address space, starting at 0x00000000 in the Security Regions Address Space (Section 7.5). Each region can be individually locked via volatile/non-volatile protection bits and is accessible only through dedicated security commands (Section 9.7).
Is the SOIC-16 package RoHS-compliant and lead-free?
Yes, the S25FL256LDPMFN000 uses a Pb-free, RoHS-compliant 16-pin SOIC 300 mil package, as stated in the "Packages" section (Page 1) and confirmed in the Ordering Information table (Page 141). The part marking "DPMFN" denotes the SOIC-16 variant with green molding compound and matte tin lead finish.
S25FL256LDPMFN000 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL-L
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tray
- 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
S25FL256LDPMFN000 FAQ
1.How can I place an order for S25FL256LDPMFN000 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL256LDPMFN000 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 S25FL256LDPMFN000 reliable?
The price and inventory of S25FL256LDPMFN000 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LDPMFN000 is usually 5 days.
3.What payment methods are accepted for S25FL256LDPMFN000?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LDPMFN000 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL256LDPMFN000?
S25FL256LDPMFN000 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL256LDPMFN000 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 S25FL256LDPMFN000?
For technical support, including S25FL256LDPMFN000 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LDPMFN000 requirements.
6.How does Aetrix verify that S25FL256LDPMFN000 is sourced from the original manufacturer or authorized distributors?
All S25FL256LDPMFN000 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 S25FL256LDPMFN000 meets industry standards.
7.What is the process for return or replacement of S25FL256LDPMFN000?
All S25FL256LDPMFN000 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LDPMFN000, 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 S25FL256LDPMFN000 part is unused and in its original packaging.
Return procedure for S25FL256LDPMFN000:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FL256LDPMFN000 Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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