Infineon Technologies S25FL256LAGMFM001
- Part No.:
- S25FL256LAGMFM001
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
S25FL256LAGMFM001.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S25FL256LAGMFM001 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 industrial microcontroller boot systems.
For engineers reviewing the S25FL256LAGMFM001 datasheet, S25FL256LAGMFM001 pinout, S25FL256LAGMFM001 application, or S25FL256LAGMFM001 equivalent, key selection criteria include read latency, sector erase granularity, write endurance, and industrial temperature range compliance.
Technical Context
This device implements a standard Serial Peripheral Interface (SPI) with Quad I/O (QPI) mode support, enabling 4-bit data transfers per clock cycle. It features a uniform 4-KB sector architecture with 512-byte programmable pages and supports both volatile and non-volatile status register configuration.
Internal address decoding eliminates external address lines, and the device includes hardware reset capability via the RESET# pin. Write protection is implemented through block lock bits and software-controlled status register bits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 Mbit (32 MB), sufficient for full firmware images in mid-tier industrial controllers |
| Interface | Quad SPI (QPI), enables 532 MB/s peak throughput at 133 MHz with 4-bit bus width |
| Supply Voltage | 2.7–3.6 V, compatible with standard 3.3 V logic rails and tolerant of ±10% variation |
| Operating Temperature | −40°C to +105°C, qualified for extended industrial environments without derating |
| Write Endurance | 100,000 program/erase cycles per sector, supporting field firmware updates over product lifetime |
| Data Retention | 20 years at 85°C, ensuring long-term reliability in thermally stressed deployments |
Pinout & Package
Package: 16-pin SOIC (300 mil, 11.4 mm × 7.6 mm), RoHS-compliant, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SO, IO0–IO3 | Serial Data I/O | Quad bidirectional data lines supporting single/dual/quad I/O modes; IO0 doubles as chip select during reset |
| SCLK | Serial Clock Input | Master-generated clock up to 133 MHz; timing-critical for high-speed read/write operations |
| CS# | Chip Select Input | Active-low enable signal; must be asserted before any command sequence initiation |
| WP# | Write Protect Input | Hardware-level protection against accidental writes when pulled low |
| HOLD# | Hold Input | Pauses ongoing serial transfer without resetting internal state; used for bus arbitration |
| RESET# | Reset Input | Asynchronous hardware reset that returns device to power-on state and clears status registers |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI (QPI) Mode | Enables 4x faster read throughput vs standard SPI, reducing boot time in MCU-based systems |
| Uniform 4-KB Sector Architecture | Allows precise firmware update partitioning without erasing unrelated code sections |
| Volatile & Non-Volatile Status Register | Supports dynamic configuration changes (e.g., latency tuning) without persistent bit corruption risk |
| Hardware Reset (RESET#) | Guarantees deterministic recovery from undefined states without requiring power cycle |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
Use Scenario: Storing and executing boot firmware for programmable logic controllers operating in factory-floor environments with wide temperature swings. IC Role / Device Role / Timing Role: Primary non-volatile code storage device with XIP (execute-in-place) capability and fast random read access. Use Value: 133 MHz Quad SPI read speed reduces system boot latency by >40% versus legacy parallel NOR devices. | Use Scenario: Holding certified bootloader and diagnostic firmware in Class II medical imaging equipment requiring traceable firmware integrity. IC Role / Device Role / Timing Role: Secure, tamper-resistant firmware repository with hardware write protection and 20-year data retention at elevated ambient temperatures. Use Value: Uniform 4-KB sectors enable atomic firmware patching without risking corruption of critical safety routines. |
| Smart Energy Meter Boot Memory | Railway Signaling Controller Code Storage |
Use Scenario: Hosting metering application firmware and calibration tables in ANSI C12.22-compliant smart electricity meters deployed outdoors. IC Role / Device Role / Timing Role: Industrial-grade serial NOR flash providing reliable code execution under −40°C to +85°C ambient conditions. Use Value: 100,000 write cycles support over-the-air firmware upgrades throughout 15+ year field deployment. | Use Scenario: Storing SIL-2 compliant control logic in wayside signaling controllers exposed to rail-side vibration and EMI. IC Role / Device Role / Timing Role: High-reliability boot memory with hardware reset and sector-lock protection against ESD-induced corruption. Use Value: RESET# pin ensures deterministic recovery after power transients common in traction power environments. |
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 |
|---|---|---|---|
| S25FL256SAGMFM001 | Same density and package, but uses 1.8 V core voltage with 3.0 V I/O; requires dual-supply design | Targeted at ultra-low-power portable instrumentation, not industrial mains-powered systems | Select only if system already implements 1.8 V domain and needs lower active current |
| MX25L25645GMI-13G | 256 Mbit, 133 MHz Quad SPI, but rated only to +85°C and offers 50,000 write cycles | Suitable for commercial-grade consumer electronics, not extended-temperature industrial use | Acceptable for cost-sensitive non-industrial designs where thermal margin and endurance are secondary |
Compared with S25FL256SAGMFM001 and MX25L25645GMI-13G, the S25FL256LAGMFM001 uniquely delivers industrial temperature range, 100K-cycle endurance, and single 3.0 V supply - making it the only choice for long-life, thermally demanding embedded control applications.
Availability
S25FL256LAGMFM001 is available at Aetrix Electronics and suitable for industrial PLCs, medical imaging devices, and smart energy meters requiring stable component supply across multi-year production cycles.
Supply support for S25FL256LAGMFM001 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.
The S25FL family targets industrial and automotive applications requiring high-reliability, long-lifetime serial NOR flash for code storage and execution in harsh environments.
FAQ
Does S25FL256LAGMFM001 support Execute-in-Place (XIP) operation?
Yes. The device supports XIP mode via Quad SPI interface, allowing microcontrollers to execute code directly from flash without copying to RAM. This reduces system memory footprint and boot latency, and is validated for use with ARM Cortex-M and RISC-V cores in industrial applications.
What is the minimum erase block size for firmware updates?
The minimum erase block size is 4 KB, corresponding to one uniform sector. This granularity enables targeted firmware patching without erasing adjacent functional code, preserving system integrity during field updates and minimizing downtime.
Is hardware write protection enabled by default at power-up?
No. Hardware write protection is disabled by default; WP# must be actively pulled low to engage protection. The status register also defaults to unprotected state, requiring explicit command issuance to lock sectors or configure block protection bits.
Can S25FL256LAGMFM001 operate at 1.8 V supply?
No. This variant operates exclusively at 2.7–3.6 V. Infineon offers the S25FL256SAGMFM001 for 1.8 V core applications, but it is not pin- or functionally compatible due to different voltage domain requirements and internal regulator architecture.
S25FL256LAGMFM001 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:
- 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
S25FL256LAGMFM001 FAQ
1.How can I place an order for S25FL256LAGMFM001 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL256LAGMFM001 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 S25FL256LAGMFM001 reliable?
The price and inventory of S25FL256LAGMFM001 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LAGMFM001 is usually 5 days.
3.What payment methods are accepted for S25FL256LAGMFM001?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LAGMFM001 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL256LAGMFM001?
S25FL256LAGMFM001 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL256LAGMFM001 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 S25FL256LAGMFM001?
For technical support, including S25FL256LAGMFM001 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LAGMFM001 requirements.
6.How does Aetrix verify that S25FL256LAGMFM001 is sourced from the original manufacturer or authorized distributors?
All S25FL256LAGMFM001 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 S25FL256LAGMFM001 meets industry standards.
7.What is the process for return or replacement of S25FL256LAGMFM001?
All S25FL256LAGMFM001 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LAGMFM001, 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 S25FL256LAGMFM001 part is unused and in its original packaging.
Return procedure for S25FL256LAGMFM001:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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