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Infineon Technologies S25FL256LAGMFM000
- Part No.:
- S25FL256LAGMFM000
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
S25FL256LAGMFM000.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:477
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Product details
Overview
S25FL256LAGMFM000 from Infineon Technologies is a 256-Mbit serial NOR flash memory with quad SPI interface, 3.0 V supply voltage, and 133 MHz read clock frequency. It supports XIP (execute-in-place), dual/quad I/O protocols, and sector-erase capability for embedded firmware storage in microcontroller-based systems.
For engineers reviewing the S25FL256LAGMFM000 datasheet, S25FL256LAGMFM000 pinout, S25FL256LAGMFM000 application, or S25FL256LAGMFM000 equivalent, key selection criteria include erase granularity (4-KB sectors), write protection options (software/hardware), and industrial temperature range (-40°C to +85°C) compliance.
Technical Context
This device implements a standard SPI-compatible command set with extended quad I/O support, enabling up to 532 MB/s effective throughput in QPI mode. It integrates a 256-bit one-time programmable (OTP) security register and supports volatile/non-volatile status register configuration.
The memory array is organized as 512 uniform 64-KB blocks, each subdivided into sixteen 4-KB sectors. Erase operations are supported at sector, block, and chip levels, with typical sector erase time of 0.5 s and chip erase time of 120 s.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 MB) - sufficient for full bootloader + application firmware in resource-constrained MCUs |
| Interface | Quad SPI (QPI) - enables 4-bit data transfer per clock cycle, doubling bandwidth vs standard SPI |
| Read Clock Frequency | 133 MHz - supports high-speed code execution directly from flash (XIP) |
| Erase Granularity | 4-KB sectors - allows fine-grained firmware updates without disturbing adjacent code sections |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic domains and tolerant of rail variation |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade embedded control applications |
Pinout & Package
Package: 8-pin SOIC (208-mil width), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SO / IO1 | Serial Output / Quad I/O Line 1 | Provides data output during standard SPI reads; functions as bidirectional I/O line in QPI mode |
| SI / IO0 | Serial Input / Quad I/O Line 0 | Accepts command/address/data input; serves as primary bidirectional I/O in quad mode |
| WP# / IO2 | Write Protect / Quad I/O Line 2 | Hardware write protection when low; becomes I/O2 in QPI mode |
| HOLD# / IO3 | Hold Input / Quad I/O Line 3 | Suspends ongoing serial communication; repurposed as I/O3 in quad mode |
| CLK | Serial Clock Input | Drives all synchronous transfers; maximum 133 MHz operation supports high-throughput firmware access |
| CS# | Chip Select Input | Active-low enable signal; initiates command decoding and memory access sequence |
| VCC | Power Supply | 3.3 V nominal supply; decoupling required within 10 mm of pin per JEDEC guidelines |
| VSS | Ground | Reference return path for all I/O and core logic; must be connected to system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Enables 4-line data transfer, achieving 532 MB/s effective read bandwidth for real-time firmware execution |
| Uniform 4-KB Sector Architecture | Permits selective firmware patching without erasing entire application image, reducing update latency |
| One-Time Programmable (OTP) Security Register | Stores immutable keys or device identifiers for secure boot validation and anti-cloning protection |
| Software & Hardware Write Protection | Combines status register bits and WP#/HOLD# pins to prevent accidental writes during power transitions |
| Industrial Temperature Range | Validated operation from -40°C to +85°C ensures reliability in motor drives, PLCs, and outdoor IoT gateways |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing ladder logic programs and configuration data in programmable logic controllers with field-upgrade capability. IC Role / Device Role / Timing Role: Nonvolatile program memory providing XIP-capable instruction fetch for ARM Cortex-M7-based control CPUs. Use Value: 4-KB sector erase enables incremental firmware updates without halting machine operation or losing process state. | Use Scenario: Holding boot code and safety-critical sensor fusion algorithms in automotive camera ECU modules. IC Role / Device Role / Timing Role: Secure boot memory with OTP register used to validate cryptographic signatures before loading application firmware. Use Value: Industrial temperature rating and hardware write protection ensure integrity during engine bay thermal cycling and vibration events. |
| Medical Imaging Device BIOS | Smart Grid Communication Module |
Use Scenario: Hosting UEFI-compatible BIOS and diagnostic firmware in portable ultrasound units requiring regulatory traceability. IC Role / Device Role / Timing Role: Trusted firmware repository supporting secure boot chain with hardware-enforced write lock after factory programming. Use Value: OTP security register stores unique device identity for HIPAA-compliant audit logging and firmware version binding. | Use Scenario: Storing protocol stacks (DLMS/COSEM, IEC 61850) and encryption keys in utility smart meters deployed in outdoor substations. IC Role / Device Role / Timing Role: High-reliability nonvolatile memory operating across wide temperature swings and long service life (>20 years). Use Value: 100K program/erase cycles and data retention >20 years meet ANSI C12.22 and IEC 62056 certification 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 |
|---|---|---|---|
| S25FL256SAGMFM000 | Same density and package, but supports 166 MHz QPI clock and includes enhanced security features (AES-256 encryption) | Required where encrypted firmware transmission or higher throughput is mandated (e.g., EV charging controllers) | Select if AES-256 or >133 MHz read performance is needed; otherwise S25FL256LAGMFM000 offers cost-optimized industrial functionality |
| MX25L25645GMI-13G | 256-Mbit SPI NOR flash with 133 MHz max clock, but lacks OTP register and QPI mode; only standard SPI/dual SPI supported | Suitable for legacy MCU platforms without quad I/O hardware support or security requirements | Choose when board-level SPI bus is limited to 2-wire mode or security features are unnecessary |
Compared with S25FL256SAGMFM000, this part trades off advanced security and speed for lower unit cost and proven qualification in long-lifecycle industrial designs; versus MX25L25645GMI-13G, it delivers superior bandwidth and firmware protection at marginally higher BOM cost.
Availability
S25FL256LAGMFM000 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS ECUs, and medical imaging devices requiring stable component supply and long-term lifecycle assurance.
Supply support for S25FL256LAGMFM000 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 secure microcontrollers.
This device belongs to the S25FL-S family of serial NOR flash memories designed specifically for high-reliability embedded firmware storage with industrial temperature tolerance and robust security features.
FAQ
What is the maximum clock frequency supported in Quad Peripheral Interface (QPI) mode?
The S25FL256LAGMFM000 supports up to 133 MHz in QPI mode, delivering 532 MB/s effective read throughput. This frequency is specified under VCC = 3.0–3.6 V and TA = -40°C to +85°C conditions, with setup/hold timing margins validated per JEDEC JESD252A.
Does this device support execute-in-place (XIP) operation?
Yes, the device supports XIP mode via its quad SPI interface, allowing microcontrollers to fetch instructions directly from flash without copying to RAM. XIP is enabled using the Read Quad I/O Fast command (0x6B) and requires proper address mapping and cache coherency handling in the host MCU.
How many program/erase cycles is the memory rated for?
The S25FL256LAGMFM000 is rated for 100,000 program/erase cycles per sector. Endurance is guaranteed across the full industrial temperature range, with data retention exceeding 20 years at +85°C ambient per JEDEC JESD22-A117 specification.
Is hardware write protection implemented independently of software settings?
Yes, hardware write protection is controlled by the WP# pin, which disables all write/erase commands when pulled low. This operates independently of status register bits and remains active even during power-up transients or brown-out conditions, preventing unintended modifications.
S25FL256LAGMFM000 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:
- 133 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
S25FL256LAGMFM000 FAQ
1.How can I place an order for S25FL256LAGMFM000 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL256LAGMFM000 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 S25FL256LAGMFM000 reliable?
The price and inventory of S25FL256LAGMFM000 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LAGMFM000 is usually 5 days.
3.What payment methods are accepted for S25FL256LAGMFM000?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LAGMFM000 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL256LAGMFM000?
S25FL256LAGMFM000 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL256LAGMFM000 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 S25FL256LAGMFM000?
For technical support, including S25FL256LAGMFM000 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LAGMFM000 requirements.
6.How does Aetrix verify that S25FL256LAGMFM000 is sourced from the original manufacturer or authorized distributors?
All S25FL256LAGMFM000 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 S25FL256LAGMFM000 meets industry standards.
7.What is the process for return or replacement of S25FL256LAGMFM000?
All S25FL256LAGMFM000 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LAGMFM000, 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 S25FL256LAGMFM000 part is unused and in its original packaging.
Return procedure for S25FL256LAGMFM000:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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