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Infineon Technologies S25FL256LAGMFA001
- Part No.:
- S25FL256LAGMFA001
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
S25FL256LAGMFA001.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,681
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Product details
Overview
S25FL256LAGMFA001 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 S25FL256LAGMFA001 datasheet, S25FL256LAGMFA001 pinout, S25FL256LAGMFA001 application, or S25FL256LAGMFA001 equivalent, key selection criteria include read latency, sector erase granularity, write protection scheme, and industrial temperature range support.
Technical Context
This device implements a standard Serial Peripheral Interface (SPI) with extended Quad I/O mode supporting single/dual/quad read commands. It features a 64-byte page programming buffer and uniform 4-KB sector erase architecture.
Internal address decoding supports 27-bit addressing for full 256-Mbit capacity access. The device includes hardware write protection via WP# pin and software-controlled block protection using status register bits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Type | NOR Flash - enables XIP (execute-in-place) for MCU boot code without RAM copy |
| Capacity | 256 Mbit (32 MB) - supports firmware images up to ~30 MB with overhead |
| Interface | Quad SPI - delivers up to 532 MB/s effective throughput in QPI mode |
| Read Clock | 133 MHz - defines maximum command cycle rate for fast instruction fetch |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V logic domains and brown-out tolerant |
| Operating Temp | −40°C to +105°C - qualified for industrial-grade embedded control applications |
| Erase Granularity | 4 KB uniform sectors - allows fine-grained firmware update without full chip erase |
Pinout & Package
Package: 8-pin SOIC (208 mil, 5.2 mm × 5.2 mm), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SO/IO1 | Serial Output / Quad I/O 1 | Output data during standard read; bidirectional in Quad SPI mode |
| SI/IO0 | Serial Input / Quad I/O 0 | Input for commands/address/data; bidirectional in Quad SPI mode |
| WP#/IO2 | Write Protect / Quad I/O 2 | Hardware-level write lock when pulled low; I/O in Quad mode |
| HOLD#/IO3 | Hold / Quad I/O 3 | Pauses ongoing transfer without chip deselect; I/O in Quad mode |
| CS# | Chip Select | Active-low enable for command decoding and bus arbitration |
| CLK | Serial Clock | Master-generated timing reference for all SPI transactions |
| VCC | Power Supply | 3.3 V core and I/O supply; requires local decoupling |
| VSS | Ground | Reference return path for all signals and power |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI Mode | Enables 4-bit-wide data transfers per clock edge, doubling bandwidth vs dual SPI |
| Page Program Time | Typical 250 µs per 256-byte page - reduces firmware update latency |
| Software Write Protection | Status register bits allow selective lock of top/bottom 64 KB or full array |
| Security Register | One-time programmable (OTP) 128-bit register for unique device ID or keys |
| Reset Command Support | Enables recovery from unknown state without power cycle in system-level fault handling |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing real-time control firmware in programmable logic controllers with field-upgrade capability. IC Role / Device Role / Timing Role: Nonvolatile code storage with XIP support and deterministic read latency under 10 ns. Use Value: Eliminates external RAM copy step during boot, reducing BOM count and startup time by >15 ms. | Use Scenario: Holding boot loader and safety-critical sensor fusion firmware in camera-based driver assistance modules. IC Role / Device Role / Timing Role: AEC-Q100 Grade 2 qualified persistent memory with ECC-enabled read path. Use Value: Meets ASIL-B functional safety requirements via built-in error detection and recovery commands. |
| Medical Imaging System Configuration | Network Router Boot Image |
Use Scenario: Retaining calibration tables and FPGA configuration bitstreams in portable ultrasound devices. IC Role / Device Role / Timing Role: Dual-plane read capability enabling concurrent firmware and parameter access. Use Value: Supports zero-latency parameter lookup during image acquisition without interrupting main program flow. | Use Scenario: Storing Linux kernel and initramfs in carrier-grade broadband routers requiring secure remote updates. IC Role / Device Role / Timing Role: Hardware write-protect pin and OTP security register for root-of-trust chain. Use Value: Prevents unauthorized firmware modification during over-the-air (OTA) update transmission. |
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 |
|---|---|---|---|
| S25FL256SAGMFA001 | Same density and package; supports 166 MHz Quad SPI vs 133 MHz | Higher throughput needed in high-speed boot scenarios | Select when system clock budget allows >133 MHz operation and faster firmware load is critical |
| MX25L25645GMI-10G | 256 Mbit, 3.3 V, but uses standard SPI only (no Quad mode) | Legacy designs lacking Quad SPI controller support | Choose only if host MCU lacks Quad SPI peripheral or firmware stack does not support QPI commands |
Compared with S25FL256SAGMFA001, this part trades peak bandwidth for broader compatibility and lower EMI; versus MX25L25645GMI-10G, it delivers 4× higher effective read throughput and integrated security features absent in the Macronix device.
Availability
S25FL256LAGMFA001 is available at Aetrix Electronics and suitable for industrial control systems, automotive ADAS modules, and medical imaging equipment requiring stable component supply across multi-year production cycles.
Supply support for S25FL256LAGMFA001 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, sensing, and memory solutions for industrial, automotive, and IoT applications.
This device belongs to the S25FL-S family of high-reliability serial NOR flash memories designed specifically for code storage in safety-critical and long-lifecycle embedded systems.
FAQ
What is the maximum supported clock frequency in Quad SPI mode?
The S25FL256LAGMFA001 supports up to 133 MHz in Quad SPI mode, delivering 532 MB/s effective throughput. This frequency is guaranteed across the full industrial temperature range (−40°C to +105°C) and requires proper PCB layout with matched trace lengths and controlled impedance.
Does this device support execute-in-place (XIP) operation?
Yes, the device supports XIP directly from the memory array without copying to RAM. Its NOR architecture and low-latency read commands (e.g., Fast Read Quad Output) enable deterministic instruction fetch timing, essential for real-time MCU boot and runtime code execution.
How is write protection implemented on this flash device?
Write protection is implemented through both hardware and software methods: the WP# pin provides physical lock when asserted low, while status register bits (BP0–BP3) enable selective protection of top/bottom 64 KB blocks or the entire array, configurable via Write Status Register command.
Is an external reset circuit required for reliable operation?
No external reset circuit is required. The device supports a dedicated Reset Enable/Reset command (0xFF) that restores internal logic to known state without power cycling, enabling robust recovery in systems where supply stability cannot be guaranteed during fault conditions.
S25FL256LAGMFA001 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 ~ 85°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
S25FL256LAGMFA001 FAQ
1.How can I place an order for S25FL256LAGMFA001 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL256LAGMFA001 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 S25FL256LAGMFA001 reliable?
The price and inventory of S25FL256LAGMFA001 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL256LAGMFA001 is usually 5 days.
3.What payment methods are accepted for S25FL256LAGMFA001?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL256LAGMFA001 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL256LAGMFA001?
S25FL256LAGMFA001 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL256LAGMFA001 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 S25FL256LAGMFA001?
For technical support, including S25FL256LAGMFA001 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL256LAGMFA001 requirements.
6.How does Aetrix verify that S25FL256LAGMFA001 is sourced from the original manufacturer or authorized distributors?
All S25FL256LAGMFA001 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 S25FL256LAGMFA001 meets industry standards.
7.What is the process for return or replacement of S25FL256LAGMFA001?
All S25FL256LAGMFA001 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL256LAGMFA001, 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 S25FL256LAGMFA001 part is unused and in its original packaging.
Return procedure for S25FL256LAGMFA001:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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