Infineon Technologies S25FL127SABMFB103
- Part No.:
- S25FL127SABMFB103
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
S25FL127SABMFB103.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:1,486
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Product details
Overview
S25FL127SABMFB103 from Infineon is a 128 Mb (16 MB) SPI Multi-I/O serial NOR flash memory with 3.0 V core, 64 KB uniform sector erase, Quad Read up to 54 MBps, and integrated hardware ECC for single-bit error correction. It supports AutoBoot at power-up and features OTP security with 1024-byte one-time programmable array. Used in industrial embedded boot storage and firmware code execution.
For engineers reviewing the S25FL127SABMFB103 datasheet, S25FL127SABMFB103 pinout, S25FL127SABMFB103 application, or S25FL127SABMFB103 equivalent, key selection criteria include Quad I/O read bandwidth, hybrid vs. uniform sector erase configuration, AEC-Q100 Grade 2 qualification, 2.7–3.6 V supply range, and OTP-based secure boot implementation.
Technical Context
This device implements SPI-MIO (Multi-Input/Output) interface supporting clock modes 0 and 3, with configurable 24-/32-bit addressing and JEDEC JESD216B SFDP compliance. It integrates Eclipse architecture with 65-nm MIRRORBIT™ technology for high endurance and low-power operation.
The flash uses internal hardware ECC generation and correction, supports both Normal/Fast/Dual/Quad Read commands, and offers two erase configurations: hybrid (16 × 4 KB + remaining 64 KB sectors) or uniform (256 KB logical blocks), enabling software compatibility across density generations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 128 Mb (16 MB) - sufficient for full firmware images and parameter storage in resource-constrained microcontrollers |
| Read Speed (Quad) | 54 MBps at 108 MHz - enables fast code XIP (execute-in-place) from flash without local RAM buffering |
| Erase Block Size | 256 KB uniform sector - simplifies firmware update partitioning and aligns with bootloader requirements |
| Endurance | 100,000 program-erase cycles per sector - supports field firmware updates over 10+ years of industrial deployment |
| Data Retention | 20 years minimum - ensures long-term reliability in unpowered storage for automotive and infrastructure applications |
| Supply Voltage | 2.7 V to 3.6 V - compatible with standard 3.3 V logic rails and tolerant of brown-out conditions |
| Temperature Range | –40°C to +105°C (Industrial Plus) - qualified for under-hood automotive and high-ambient industrial control systems |
Pinout & Package
Package: 8-contact WSON (6 mm × 5 mm, 0.5 mm pitch), RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for SPI command decoding; must be asserted before SCK edge to initiate transaction |
| SCK | Serial Clock | Input clock driving all SPI timing; supports up to 108 MHz for Quad Read operations |
| IO0 (SI) | Serial Input / Data Line 0 | Primary data input during programming; bidirectional in Dual/Quad modes for address/data transfer |
| IO1 (SO) | Serial Output / Data Line 1 | Primary data output during reads; bidirectional in Dual/Quad modes for address/data transfer |
| IO2 (WP#) | Write Protect / Data Line 2 | Hardware write protection when pulled low; also serves as Quad I/O line in multi-I/O mode |
| IO3 (HOLD#) | Hold / Data Line 3 | Pauses ongoing SPI transaction when asserted; dual-role as Quad I/O line in active mode |
| VCC | Power Supply | 3.0 V nominal core and I/O supply; decoupling capacitor required within 10 mm of pin |
| VSS | Ground | Signal and power return reference; requires low-impedance connection to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| AutoBoot Execution | Automatically executes Quad Read from preconfigured address at power-up/reset - eliminates external boot controller dependency |
| Hardware ECC | On-the-fly single-bit error correction with no software overhead - maintains data integrity without CPU intervention |
| OTP Security Array | 1024-byte one-time programmable region for cryptographic keys or device-specific identifiers - prevents cloning and unauthorized firmware loading |
| Advanced Sector Protection (ASP) | Password- or boot-code-controlled individual sector locking - enables fine-grained firmware update security policies |
| Hybrid/Uniform Erase Options | Selectable via configuration register - supports legacy 4 KB sector layout or future-proof 256 KB block erase for scalable firmware design |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing real-time control firmware and configuration tables in programmable logic controllers operating continuously in factory environments. IC Role / Device Role / Timing Role: Primary non-volatile boot memory executing XIP code directly from flash; provides deterministic startup timing via AutoBoot. Use Value: 20-year data retention and 100K-cycle endurance ensure firmware integrity across 15+ year equipment lifecycles without replacement. | Use Scenario: Hosting boot code and safety-critical sensor calibration data for radar and camera modules in Level 2+ ADAS systems. IC Role / Device Role / Timing Role: AEC-Q100 Grade 2 qualified SPI flash providing secure, fast-boot memory with OTP-protected calibration parameters. Use Value: Hardware ECC and ASP prevent bit-flip corruption and unauthorized reprogramming - critical for ISO 26262 ASIL-B compliance. |
| Medical Imaging System BIOS | Smart Grid Communication Module |
Use Scenario: Storing diagnostic firmware and regulatory-compliant boot loaders in portable ultrasound and MRI subsystems requiring traceable firmware versions. IC Role / Device Role / Timing Role: Secure boot memory with CFI/SFDP support enabling automatic configuration detection by host MCU during POST. Use Value: OTP array stores device-specific serial numbers and calibration signatures - satisfies FDA UDI and IEC 62304 traceability requirements. | Use Scenario: Firmware storage for DLMS/COSEM-compliant smart meters and RF mesh gateways deployed in outdoor substations. IC Role / Device Role / Timing Role: Industrial Plus temperature-rated flash supporting remote OTA updates over narrowband PLC or LoRaWAN links. Use Value: Uniform 256 KB erase blocks simplify delta-update implementation and reduce communication overhead during field upgrades. |
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 |
|---|---|---|---|
| Cypress S25FL128SAGMFI100 | Same die, identical pinout and command set; differs only in temperature grade (–40°C to +85°C Industrial vs. +105°C Industrial Plus) | Lacks extended temperature support for under-hood or high-ambient deployments | Select when ambient operating temperature remains ≤85°C and cost optimization is prioritized |
| Winbond W25Q128JVSIM | 128 Mb SPI flash with Quad I/O but no hardware ECC, no AutoBoot, and no OTP array; uses different SFDP structure | Requires external error handling and boot sequencing logic; not suitable for safety-critical boot paths | Select for cost-sensitive consumer applications where ECC and secure boot are not mandated |
Compared with S25FL127SABMFB103, the Cypress alternative matches functionality but sacrifices high-temp operation, while the Winbond part omits hardware ECC and OTP-making it unsuitable for automotive or medical boot storage where data integrity and security are non-negotiable.
Availability
S25FL127SABMFB103 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging system BIOS requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for S25FL127SABMFB103 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 is a German semiconductor manufacturer specializing in power management, automotive ICs, and secure memory solutions, with global R&D and manufacturing infrastructure.
The FL-S family targets high-reliability embedded systems requiring secure, fast, and long-life non-volatile storage - specifically designed for automotive, industrial, and medical applications demanding AEC-Q100 qualification and hardware-based security.
FAQ
What is the default AutoBoot address for S25FL127SABMFB103?
The default AutoBoot address is 0x000000, configured via the Configuration Register (CR) bit CR[2]. This address can be changed to any 24-bit or 32-bit location using the Write Configuration Register command, allowing flexible boot vector placement for custom bootloader architectures.
Does S25FL127SABMFB103 support Dual Transfer Rate (DTR) mode?
No, S25FL127SABMFB103 does not support DTR mode. It operates exclusively in Single Transfer Rate (STR) mode across all SPI command types, including Quad Read. Timing is defined by setup/hold windows relative to SCK edges, not data strobes.
How is the OTP array programmed and locked?
The 1024-byte OTP array is programmed using the Program OTP command (0x42) with 16-byte page writes. Once the Lock Bit (CR[15]) is set via Write Configuration Register, further OTP writes are permanently disabled - no unlock sequence exists, ensuring irreversible security binding.
Can S25FL127SABMFB103 be used with 1.8 V I/O interfaces?
No, S25FL127SABMFB103 is a 3.0 V core device with I/O voltage tied to VCC (2.7–3.6 V). It lacks dual-voltage I/O capability and is incompatible with 1.8 V SPI buses. Level-shifting circuitry is required for interfacing with 1.8 V microcontrollers.
S25FL127SABMFB103 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL-S
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Last Time Buy
- 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
- Clock Frequency:
- 108 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
S25FL127SABMFB103 FAQ
1.How can I place an order for S25FL127SABMFB103 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL127SABMFB103 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 S25FL127SABMFB103 reliable?
The price and inventory of S25FL127SABMFB103 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL127SABMFB103 is usually 5 days.
3.What payment methods are accepted for S25FL127SABMFB103?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL127SABMFB103 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL127SABMFB103?
S25FL127SABMFB103 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL127SABMFB103 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 S25FL127SABMFB103?
For technical support, including S25FL127SABMFB103 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL127SABMFB103 requirements.
6.How does Aetrix verify that S25FL127SABMFB103 is sourced from the original manufacturer or authorized distributors?
All S25FL127SABMFB103 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 S25FL127SABMFB103 meets industry standards.
7.What is the process for return or replacement of S25FL127SABMFB103?
All S25FL127SABMFB103 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL127SABMFB103, 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 S25FL127SABMFB103 part is unused and in its original packaging.
Return procedure for S25FL127SABMFB103:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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