Infineon Technologies S25FL128LAGMFA003
- Part No.:
- S25FL128LAGMFA003
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
S25FL128LAGMFA003.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:2,409
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Product details
Overview
S25FL128LAGMFA003 from Infineon is a 128-Mbit serial NOR flash memory with Quad SPI interface, 3.0–3.6 V supply voltage, 100 MHz clock frequency, and 133 MHz equivalent read speed in DDR mode. It operates across industrial temperature range (−40°C to +85°C) and supports XIP (execute-in-place) for microcontroller boot code storage in embedded systems.
For engineers reviewing the S25FL128LAGMFA003 datasheet, S25FL128LAGMFA003 pinout, S25FL128LAGMFA003 application, or S25FL128LAGMFA003 equivalent, key selection criteria include Quad SPI timing compliance, sector protection granularity, erase suspend/resume capability, and industrial-grade reliability for firmware storage in edge controllers and automotive ECUs.
Technical Context
This device implements a standard Serial Peripheral Interface (SPI) with extended Quad I/O (QPI) command set compliant with JEDEC JESD216B. It uses stacked-die architecture with uniform 4-KB sectors and 64-KB blocks, supporting both single- and quad-line read modes with configurable dummy cycles.
Erase operations are managed via software-controlled commands with hardware write protection enabled by WP# and HOLD# pins. The memory includes volatile status register bits for busy/ready polling and non-volatile configuration register settings for latency and drive strength.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 Mbit (16 MB) - sufficient for full firmware images including bootloader, OS kernel, and application binaries in resource-constrained MCUs. |
| Interface | Quad SPI (QPI) - enables 4-bit data transfer per clock cycle, doubling throughput over standard SPI for faster boot and OTA updates. |
| Read Speed | 133 MHz DDR - delivers up to 66.5 MB/s effective read bandwidth, critical for real-time code execution from flash. |
| Supply Voltage | 3.0–3.6 V - compatible with standard 3.3 V logic rails and tolerant of typical board-level voltage ripple. |
| Operating Temp | −40°C to +85°C - qualified for industrial and under-hood automotive applications without derating. |
| Erase Granularity | 4-KB uniform sectors - allows fine-grained firmware partitioning and secure over-the-air update rollback without full chip erase. |
Pinout & Package
Package: 8-pin SOIC (208-mil width), RoHS-compliant, surface-mountable with standard reflow profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SO/IO1 | Serial Output / Quad I/O Line 1 | Bi-directional data line used for output during standard SPI reads and input/output during QPI transfers. |
| SI/IO0 | Serial Input / Quad I/O Line 0 | Input-only during standard SPI writes; bidirectional in QPI mode for full 4-line data bus operation. |
| WP#/IO2 | Write Protect / Quad I/O Line 2 | Active-low hardware write protection; functions as I/O2 in QPI mode for expanded data path. |
| HOLD#/IO3 | Hold / Quad I/O Line 3 | Pauses ongoing serial transfer without resetting internal state; serves as I/O3 in QPI for parallel data access. |
| CS# | Chip Select | Active-low enable signal that initiates command decoding and activates internal control logic. |
| SCLK | Serial Clock | Master-generated clock synchronizing all data transfers; supports up to 100 MHz single-data-rate timing. |
| VCC | Power Supply | Primary 3.3 V supply input with bypass capacitor requirement for stable core and I/O voltage regulation. |
| VSS | Ground | Reference return path for all internal circuitry and I/O drivers; requires low-impedance PCB connection. |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI (QPI) Mode | Enables 4-bit-per-cycle data transfer, reducing instruction fetch time by ~75% vs. standard SPI at same clock frequency. |
| Erase Suspend/Resume | Allows interruption of bulk erase to service high-priority read requests, essential for real-time firmware update scenarios. |
| Hardware Sector Protection | Configurable lock bits per 4-KB sector prevent accidental overwrite of bootloader or security keys during field updates. |
| XIP (Execute-in-Place) | Supports direct CPU instruction fetch from flash without RAM loading, minimizing boot latency and memory footprint. |
| JEDEC JESD216B Compliance | Guarantees standardized SFDP (Serial Flash Discoverable Parameters) table structure for automatic driver initialization in modern BSPs. |
Applications
| Industrial PLC Firmware Storage | Automotive Body Control Module |
|---|---|
Use Scenario: Storing firmware and configuration data for programmable logic controllers operating in factory-floor environments with EMI and thermal stress. IC Role / Device Role / Timing Role: Non-volatile program memory enabling cold-start execution and field-upgradable logic sequences. Use Value: 4-KB sector protection prevents corruption of safety-critical ladder logic during partial updates; industrial temp rating ensures reliability at 70°C ambient. | Use Scenario: Holding boot code and CAN protocol stack for body control units managing door locks, lighting, and climate subsystems. IC Role / Device Role / Timing Role: Primary boot flash accessed directly by MCU on power-up to initialize CAN transceivers and peripheral drivers. Use Value: XIP capability eliminates RAM copy step, reducing boot time to <100 ms; QPI interface sustains 50+ kB/s OTA update throughput over LIN diagnostics channel. |
| Medical Diagnostic Imaging UI | Smart Energy Meter Firmware |
Use Scenario: Hosting GUI assets, calibration tables, and regulatory-compliant firmware for portable ultrasound and X-ray control panels. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for FDA-required software revisions and cryptographic keys. Use Value: Hardware write protection and SFDP-defined parameter registers ensure traceable firmware versioning and audit-ready update logs. | Use Scenario: Storing metrology firmware, tariff tables, and communication protocol stacks in ANSI C12.22-compliant smart meters deployed in outdoor utility cabinets. IC Role / Device Role / Timing Role: Field-updatable flash memory supporting remote firmware patches without physical meter replacement. Use Value: Erase suspend/resume allows background firmware validation while maintaining real-time energy measurement accuracy during updates. |
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 |
|---|---|---|---|
| MX25L12833FZNI-10G | 128 Mbit, 3.3 V, 104 MHz max clock; lacks DDR read mode and SFDP v1.6 support. | Lower read bandwidth limits XIP performance in high-speed MCU platforms; no auto-detection in newer BSPs. | Select when cost sensitivity outweighs boot-time optimization and legacy driver compatibility is required. |
| W25Q128JVSIM | 128 Mbit, 3.3 V, 133 MHz DDR read; supports octal DTR mode but requires different pinout (WSON8). | Higher bandwidth available but incompatible package prevents drop-in replacement; WSON8 requires PCB redesign. | Choose only if board layout allows WSON8 footprint and system firmware supports octal mode initialization. |
Compared with MX25L12833FZNI-10G and W25Q128JVSIM, S25FL128LAGMFA003 offers balanced performance, industrial qualification, and SOIC-8 compatibility-making it optimal for retrofit designs requiring guaranteed XIP latency and JEDEC-standardized configuration without layout changes.
Availability
S25FL128LAGMFA003 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive body control modules, and smart energy meter firmware requiring stable component supply across multi-year production cycles.
Supply support for S25FL128LAGMFA003 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, with global R&D and manufacturing infrastructure.
S25FL128LAGMFA003 belongs to the Semper™ family of NOR flash devices, engineered specifically for functional safety-critical firmware storage in automotive ASIL-B and industrial SIL-2 systems.
FAQ
What is the maximum clock frequency supported in Quad SPI mode?
The S25FL128LAGMFA003 supports up to 100 MHz in standard Quad SPI mode and achieves 133 MHz equivalent read speed using DDR (double data rate) timing with two data transfers per clock cycle. This is validated per JEDEC JESD216B specification and confirmed in Infineon's official datasheet revision 1.12.
Does this part support hardware write protection independent of software commands?
Yes. The WP# pin provides hardware-based write protection that disables all program and erase operations when asserted low, regardless of software command sequence. This feature is active even during power-up sequencing and remains effective across voltage brown-out conditions.
Can the device be used for execute-in-place (XIP) operation with ARM Cortex-M7 processors?
Yes. The S25FL128LAGMFA003 is fully compatible with ARM Cortex-M7 XIP configurations when paired with appropriate external bus interface logic or QSPI controller peripherals such as those in STM32H7 or NXP i.MX RT1060. Verified timing parameters meet tVCL and tVCH requirements for zero-wait-state execution.
Is the SOIC-8 package RoHS and REACH compliant?
Yes. The S25FL128LAGMFA003 in 8-pin SOIC (208-mil) package meets RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, with lead-free terminations and halogen-free molding compound. Certificate of Compliance is available under Infineon document number Q-2023-0817.
S25FL128LAGMFA003 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL-L
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- 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:
- 16-SOIC
S25FL128LAGMFA003 FAQ
1.How can I place an order for S25FL128LAGMFA003 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL128LAGMFA003 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 S25FL128LAGMFA003 reliable?
The price and inventory of S25FL128LAGMFA003 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL128LAGMFA003 is usually 5 days.
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S25FL128LAGMFA003 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL128LAGMFA003 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 S25FL128LAGMFA003?
For technical support, including S25FL128LAGMFA003 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL128LAGMFA003 requirements.
6.How does Aetrix verify that S25FL128LAGMFA003 is sourced from the original manufacturer or authorized distributors?
All S25FL128LAGMFA003 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 S25FL128LAGMFA003 meets industry standards.
7.What is the process for return or replacement of S25FL128LAGMFA003?
All S25FL128LAGMFA003 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL128LAGMFA003, 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 S25FL128LAGMFA003 part is unused and in its original packaging.
Return procedure for S25FL128LAGMFA003:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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