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Infineon Technologies S25FL256LDPMFB000
- Part No.:
- S25FL256LDPMFB000
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
S25FL256LDPMFB000.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,211
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Product details
Overview
S25FL256LDPMFB000 from Infineon is a 256-Mbit serial NOR flash memory with quad SPI interface, 133 MHz clock frequency, and 3.0 V supply voltage, used for code storage and execution in embedded microcontroller systems.
For engineers reviewing the S25FL256LDPMFB000 datasheet, S25FL256LDPMFB000 pinout, S25FL256LDPMFB000 application, or S25FL256LDPMFB000 equivalent, key selection criteria include read latency, sector protection granularity, write endurance, and industrial temperature operation.
Technical Context
This device implements a standard Serial Peripheral Interface (SPI) with Quad I/O (QPI) mode support, enabling up to 532 MB/s effective throughput. It features uniform 4-KB sectors and 64-KB blocks, with hardware write protection via WP# pin and software-controlled sector lockdown.
The memory supports both volatile and non-volatile configuration registers, allowing dynamic adjustment of latency and drive strength. It operates across –40°C to +105°C and meets AEC-Q100 Grade 3 reliability requirements for automotive applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 MB), sufficient for full firmware images in mid-tier MCUs |
| Interface | Quad SPI (QPI) with 4-line data bus, doubling bandwidth vs standard SPI |
| Max Clock Frequency | 133 MHz, enabling fast XIP (execute-in-place) boot performance |
| Supply Voltage | 2.7–3.6 V, compatible with 3.3 V system rails and brown-out tolerant |
| Operating Temperature | –40°C to +105°C, qualified for under-hood automotive ECUs |
| Write Endurance | 100,000 program/erase cycles per sector, supporting field firmware updates |
| Data Retention | 20 years at 85°C, ensuring long-term reliability in sealed modules |
Pinout & Package
8-pin SOIC (Small Outline Integrated Circuit) package, 208-mil width, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SO/IO1 | Serial Output / Quad I/O Line 1 | Bi-directional data line for QPI read/write; enables dual/quad mode operation |
| SI/IO0 | Serial Input / Quad I/O Line 0 | Input for standard SPI writes; becomes bidirectional in QPI mode |
| WP#/IO2 | Write Protect / Quad I/O Line 2 | Hardware sector lock when pulled low; serves as I/O in QPI mode |
| HOLD#/IO3 | Hold Function / Quad I/O Line 3 | Pauses ongoing transfers without chip deselect; acts as fourth I/O line |
| CLK | Serial Clock Input | Master-generated timing signal; supports up to 133 MHz for high-speed reads |
| CS# | Chip Select Input | Active-low enable; required assertion before any command sequence |
| VCC | Power Supply | 3.3 V nominal supply; decoupling capacitor placement critical for noise immunity |
| VSS | Ground | Reference return path; must be low-impedance connection to minimize switching noise |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI (QPI) Mode | Enables 4-bit parallel data transfer per clock cycle, reducing instruction fetch time by ~75% vs standard SPI |
| Uniform 4-KB Sectors | Allows fine-grained firmware update partitioning without erasing entire banks |
| Hardware Write Protection | WP# pin provides immediate, glitch-immune sector lockdown independent of register state |
| AEC-Q100 Grade 3 | Qualified for automotive use with extended temperature range and HTOL stress validation |
| Volatile Configuration Register | Permits runtime latency tuning without non-volatile register write overhead |
Applications
| Automotive Instrument Cluster | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Storing calibrated gauge graphics, boot loader, and OTA update partitions in digital dashboards. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP capability for real-time UI rendering. Use Value: 133 MHz QPI interface reduces boot time by >40% versus legacy SPI flash, meeting ASIL-B timing constraints. | Use Scenario: Holding firmware, configuration tables, and safety logic binaries in programmable logic controllers. IC Role / Device Role / Timing Role: Reliable, long-life program memory with sector-level erase for field updates. Use Value: 100K-cycle endurance and 20-year retention ensure 15+ year service life without replacement. |
| Medical Diagnostic Imaging Boot | Smart Energy Meter Firmware |
Use Scenario: Hosting secure boot ROM and calibration data for ultrasound and MRI subsystems. IC Role / Device Role / Timing Role: Trusted code storage with hardware write protection to prevent unauthorized modification. Use Value: WP# pin-based lockdown prevents accidental overwrites during service-mode firmware uploads. | Use Scenario: Storing metrology algorithms, tariff tables, and communication stack in ANSI C12.22-compliant meters. IC Role / Device Role / Timing Role: High-reliability non-volatile memory operating continuously at elevated ambient temperatures. Use Value: Operation up to +105°C ensures stable performance inside sealed outdoor meter enclosures. |
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 |
|---|---|---|---|
| S25FL256SDSMFB001 | Same density and package, but uses single/dual SPI only (no QPI mode) | Lacks quad-speed throughput; unsuitable for XIP-critical boot paths | Select when cost sensitivity outweighs speed requirement and QPI is unused |
| MX25L25645GMI-13G | 256 Mbit, 133 MHz, but rated only to +85°C and lacks AEC-Q100 qualification | Not approved for automotive under-hood deployment; limited thermal margin | Acceptable for industrial control where extended temperature is not required |
Compared with S25FL256SDSMFB001 and MX25L25645GMI-13G, the S25FL256LDPMFB000 uniquely delivers QPI bandwidth plus AEC-Q100 Grade 3 certification-enabling automotive-grade boot performance where both speed and reliability are mandatory.
Availability
S25FL256LDPMFB000 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLCs, and medical imaging subsystems requiring stable component supply across extended temperature ranges.
Supply support for S25FL256LDPMFB000 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, automotive ICs, and memory solutions.
This part belongs to the S25FL family of high-performance serial NOR flash devices, designed specifically for automotive and industrial applications demanding robust code storage and fast XIP execution.
FAQ
Is S25FL256LDPMFB000 pin-compatible with earlier S25FL256L variants?
Yes, it shares identical 8-pin SOIC (208-mil) mechanical footprint and pin assignment with S25FL256L series predecessors. Signal definitions, voltage levels, and timing parameters remain consistent, enabling drop-in replacement in existing designs without layout changes.
Does this device support execute-in-place (XIP) operation?
Yes, the S25FL256LDPMFB000 supports true XIP via its Quad SPI interface with configurable latency. With proper cache configuration and address mapping, MCU cores can directly fetch and execute instructions from flash memory without loading into RAM first.
What is the purpose of the HOLD# pin beyond pausing transfers?
In Quad SPI mode, HOLD# functions as IO3-the fourth bidirectional data line. Its dual role eliminates need for an extra pin while maintaining backward compatibility with standard SPI hold functionality during command sequences.
How does hardware write protection interact with software configuration registers?
WP# pin asserts hardware-level sector lock that overrides all software settings-including volatile and non-volatile configuration registers. Once asserted, no sector can be programmed or erased regardless of register state, providing fail-safe protection against firmware corruption.
S25FL256LDPMFB000 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 ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
S25FL256LDPMFB000 FAQ
1.How can I place an order for S25FL256LDPMFB000 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL256LDPMFB000 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 S25FL256LDPMFB000 reliable?
The price and inventory of S25FL256LDPMFB000 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LDPMFB000 is usually 5 days.
3.What payment methods are accepted for S25FL256LDPMFB000?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LDPMFB000 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL256LDPMFB000?
S25FL256LDPMFB000 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL256LDPMFB000 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 S25FL256LDPMFB000?
For technical support, including S25FL256LDPMFB000 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LDPMFB000 requirements.
6.How does Aetrix verify that S25FL256LDPMFB000 is sourced from the original manufacturer or authorized distributors?
All S25FL256LDPMFB000 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 S25FL256LDPMFB000 meets industry standards.
7.What is the process for return or replacement of S25FL256LDPMFB000?
All S25FL256LDPMFB000 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LDPMFB000, 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 S25FL256LDPMFB000 part is unused and in its original packaging.
Return procedure for S25FL256LDPMFB000:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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