Infineon Technologies S25FL128LAGNFA013
- Part No.:
- S25FL128LAGNFA013
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
S25FL128LAGNFA013.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
S25FL128LAGNFA013 from Infineon is a 128-Mbit serial NOR flash memory with Quad SPI interface, 3.0 V supply voltage, and 100 MHz clock frequency. It supports XIP (execute-in-place), dual/quad I/O modes, and offers 100K program/erase cycles with 20-year data retention. Used in industrial PLC firmware storage and automotive ADAS boot code storage.
For engineers reviewing the S25FL128LAGNFA013 datasheet, S25FL128LAGNFA013 pinout, S25FL128LAGNFA013 application, or S25FL128LAGNFA013 equivalent, key selection criteria include Quad SPI timing compliance, sector protection granularity, write suspend/resume capability, and AEC-Q100 Grade 2 qualification for automotive use.
Technical Context
This device implements a standard Serial Peripheral Interface (SPI) with extended quad I/O commands compliant with JEDEC JESD216B. It integrates an internal address counter for sequential read and supports both volatile and non-volatile status register configuration.
Memory organization comprises 64 Kbytes of uniform sectors and 256-byte programmable pages. Erase operations support chip, sector (4 Kbytes), and block (32/64 Kbytes) granularity, enabling flexible firmware update strategies in resource-constrained embedded systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 Mbit (16 Mbytes) - sufficient for full bootloader + application image in compact MCU-based systems |
| Interface | Quad SPI (x4 I/O) - enables 400 MB/s effective throughput at 100 MHz clock |
| Supply Voltage | 2.7–3.6 V - compatible with 3.3 V industrial and automotive power rails |
| Program/Erase Cycles | 100,000 cycles per sector - supports field firmware updates over product lifetime |
| Data Retention | 20 years at 85 °C - meets long-term reliability requirements for automotive ECUs |
| Operating Temp | −40 to +105 °C - qualified per AEC-Q100 Grade 2 for under-hood automotive use |
| Write Protection | Software & hardware (WP# pin) + 64-KB top/bottom sector lock - prevents accidental firmware corruption |
Pinout & Package
Supplied in an 8-pin SOIC (208-mil) package with standard SPI pinout and dedicated Write Protect (WP#) and Hold (HOLD#) control inputs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SO / IO1 | Serial Output / Quad I/O Line 1 | Outputs data during read; bidirectional in quad mode for high-speed x4 transfers |
| SI / IO0 | Serial Input / Quad I/O Line 0 | Accepts commands, addresses, and data; bidirectional in quad mode |
| WP# | Write Protect Input | Hardware-level lock for top/bottom 64 KB sectors when asserted low |
| HOLD# | Hold Input | Pauses ongoing serial transfer without deselecting device; preserves internal state |
| CS# | Chip Select Input | Active-low enable for command decoding and I/O activity |
| SCLK | Serial Clock Input | Drives all synchronous operations up to 100 MHz; phase-agnostic for SPI mode 0/3 |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI with wrap-around burst | Enables continuous 256-byte reads without address retransmission, reducing bus overhead in XIP execution |
| Program Suspend/Resume | Allows interrupting page programming to service higher-priority reads, critical for real-time firmware updates |
| Dual/Quad Enable (QE) bit | Configurable via status register to switch between single/dual/quad I/O modes without hardware change |
| Security Register Lock | Prevents unauthorized modification of configuration bits (e.g., QE, block protection) after factory programming |
| Power-on Reset (POR) | Ensures known initial state on power-up, eliminating need for external reset sequencing in space-constrained designs |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Code |
|---|---|
Use Scenario: Storing and executing ladder logic firmware in modular PLC controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP capability and fast random access for deterministic boot and runtime execution. Use Value: 100K endurance and 20-year retention ensure firmware integrity across 15+ year PLC service life without replacement. | Use Scenario: Holding boot firmware and sensor calibration data for front-camera ECU in Level 2+ ADAS systems. IC Role / Device Role / Timing Role: AEC-Q100 Grade 2 qualified boot memory providing secure, fast-read startup sequence with error detection. Use Value: Quad SPI bandwidth supports <100 ms cold boot time while −40 to +105 °C operation ensures reliability under hood conditions. |
| Medical Imaging System BIOS | Smart Grid Communication Module |
Use Scenario: Storing diagnostic BIOS and FPGA configuration bitstreams in portable ultrasound devices requiring FDA-compliant reliability. IC Role / Device Role / Timing Role: Secure, tamper-resistant firmware repository with hardware write protection and status register locking. Use Value: Sector-lock granularity prevents corruption of critical boot code during field software upgrades mandated by regulatory audits. | Use Scenario: Hosting protocol stack firmware and encryption keys in DIN-rail mounted smart meter gateways deployed in outdoor substations. IC Role / Device Role / Timing Role: High-reliability, temperature-stable memory supporting remote OTA updates over narrowband PLC networks. Use Value: 64 KB block erase enables atomic firmware patching without disrupting real-time grid monitoring functions. |
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 |
|---|---|---|---|
| S25FL128SAGNFA000 | Same density and package but lacks AEC-Q100 qualification; rated −40 to +85 °C only | Not suitable for automotive under-hood use; acceptable for industrial indoor control panels | Select when automotive qualification is unnecessary and cost sensitivity is higher |
| MX25L12833FZNI-10G | 128 Mbit, 3 V, but uses standard SPI (no Quad I/O); max clock 104 MHz, no XIP optimization | Limited to simpler boot loaders where bandwidth <200 MB/s suffices; no AEC-Q100 rating | Choose for legacy SPI-only designs or where quad interface complexity is undesirable |
Compared with S25FL128SAGNFA000, this part adds automotive-grade temperature range and qualification; versus MX25L12833FZNI-10G, it delivers 2× read bandwidth and integrated XIP support essential for real-time embedded execution.
Availability
S25FL128LAGNFA013 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot code, and medical imaging system BIOS requiring stable component supply and long-term lifecycle support.
Supply support for S25FL128LAGNFA013 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 for industrial and mission-critical applications.
This part belongs to the S25FL family of high-reliability serial NOR flash memories designed specifically for automotive, industrial, and medical systems requiring AEC-Q100 qualification and extended data retention.
FAQ
Is S25FL128LAGNFA013 pin-compatible with earlier S25FL128L variants?
Yes, it maintains identical 8-pin SOIC (208-mil) footprint and pin assignment with S25FL128L series predecessors. The 'A' suffix denotes enhanced manufacturing process and updated qualification testing, not mechanical or electrical pinout changes.
Does this device support Dual Transfer Rate (DTR) mode?
No, S25FL128LAGNFA013 does not implement DTR mode. It supports standard SPI modes 0 and 3 with single/dual/quad I/O protocols, but lacks DDR clocking and DTR command set defined in JEDEC JESD216D.
What is the minimum erase block size supported?
The smallest erasable unit is a 4 Kbyte sector. The device supports uniform 4 Kbyte sector erase, plus larger 32 Kbyte and 64 Kbyte block erase operations, enabling granular firmware partitioning.
Can the WP# pin be used for permanent write protection?
WP# provides dynamic hardware write protection and can be permanently enabled via the Status Register Block Protection bits. Once locked, sector protection settings persist through power cycles and cannot be altered without issuing a specific unlock sequence.
S25FL128LAGNFA013 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL-L
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 128Mbit
- Memory Organization:
- 16M 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:
- 8-WSON (5x6)
S25FL128LAGNFA013 FAQ
1.How can I place an order for S25FL128LAGNFA013 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL128LAGNFA013 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 S25FL128LAGNFA013 reliable?
The price and inventory of S25FL128LAGNFA013 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL128LAGNFA013 is usually 5 days.
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4.How is shipping managed for S25FL128LAGNFA013?
S25FL128LAGNFA013 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL128LAGNFA013 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 S25FL128LAGNFA013?
For technical support, including S25FL128LAGNFA013 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL128LAGNFA013 requirements.
6.How does Aetrix verify that S25FL128LAGNFA013 is sourced from the original manufacturer or authorized distributors?
All S25FL128LAGNFA013 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 S25FL128LAGNFA013 meets industry standards.
7.What is the process for return or replacement of S25FL128LAGNFA013?
All S25FL128LAGNFA013 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL128LAGNFA013, 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 S25FL128LAGNFA013 part is unused and in its original packaging.
Return procedure for S25FL128LAGNFA013:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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