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Infineon Technologies S25FL127SABMFB103

Part No.:
S25FL127SABMFB103
Manufacturer:
Infineon Technologies
Category:
Memory
Package:
8-SOIC (0.209", 5.30mm Width)
Datasheet:
AetrixS25FL127SABMFB103.pdf
Description:
IC FLASH 128MBIT SPI/QUAD 8SOIC
Quantity:
Payment:
Payment
Shipping:
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

ParameterValue and Actual Design Meaning
Density128 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 Size256 KB uniform sector - simplifies firmware update partitioning and aligns with bootloader requirements
Endurance100,000 program-erase cycles per sector - supports field firmware updates over 10+ years of industrial deployment
Data Retention20 years minimum - ensures long-term reliability in unpowered storage for automotive and infrastructure applications
Supply Voltage2.7 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/TerminalCircuit RoleDesign Meaning
CS#Chip SelectActive-low enable for SPI command decoding; must be asserted before SCK edge to initiate transaction
SCKSerial ClockInput clock driving all SPI timing; supports up to 108 MHz for Quad Read operations
IO0 (SI)Serial Input / Data Line 0Primary data input during programming; bidirectional in Dual/Quad modes for address/data transfer
IO1 (SO)Serial Output / Data Line 1Primary data output during reads; bidirectional in Dual/Quad modes for address/data transfer
IO2 (WP#)Write Protect / Data Line 2Hardware write protection when pulled low; also serves as Quad I/O line in multi-I/O mode
IO3 (HOLD#)Hold / Data Line 3Pauses ongoing SPI transaction when asserted; dual-role as Quad I/O line in active mode
VCCPower Supply3.0 V nominal core and I/O supply; decoupling capacitor required within 10 mm of pin
VSSGroundSignal and power return reference; requires low-impedance connection to PCB ground plane

Key Features

FeatureDesign Value
AutoBoot ExecutionAutomatically executes Quad Read from preconfigured address at power-up/reset - eliminates external boot controller dependency
Hardware ECCOn-the-fly single-bit error correction with no software overhead - maintains data integrity without CPU intervention
OTP Security Array1024-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 OptionsSelectable via configuration register - supports legacy 4 KB sector layout or future-proof 256 KB block erase for scalable firmware design

Applications

Industrial PLC Firmware StorageAutomotive 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 BIOSSmart 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 PartTechnical DifferenceApplication DifferenceSelection Advice
Cypress S25FL128SAGMFI100Same 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 deploymentsSelect when ambient operating temperature remains ≤85°C and cost optimization is prioritized
Winbond W25Q128JVSIM128 Mb SPI flash with Quad I/O but no hardware ECC, no AutoBoot, and no OTP array; uses different SFDP structureRequires external error handling and boot sequencing logic; not suitable for safety-critical boot pathsSelect 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.

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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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