Infineon Technologies S25FS128SAGNFI100
- Part No.:
- S25FS128SAGNFI100
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
S25FS128SAGNFI100.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:

- Shipping:

Inventory:9,522
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Product details
Overview
S25FS128SAGNFI100 from Infineon is a 128 Mbit (16 MB) serial NOR flash memory IC with SPI Multi-I/O interface, operating at 1.8 V supply. It supports Quad I/O and DDR Quad I/O read modes up to 80 MBps, features hardware ECC, 100,000 program-erase cycles, and 20-year data retention. Used for firmware storage in industrial microcontroller boot systems requiring fast XIP-capable code execution.
For engineers reviewing the S25FS128SAGNFI100 datasheet, S25FS128SAGNFI100 pinout, S25FS128SAGNFI100 application, or S25FS128SAGNFI100 equivalent, key selection criteria include hybrid/uniform sector erase options, OTP array size, AEC-Q100 Grade 2 qualification, and WSON 6 × 5 mm package compatibility with legacy S25FL-P/S25FL-S footprints.
Technical Context
This device implements Infineon's Eclipse architecture with 65-nm MIRRORBIT™ technology, enabling simultaneous read-while-write via program/erase suspend-resume functionality. It supports both 24-bit and 32-bit addressing, SFDP v1.6 and CFI for auto-configuration, and dual-mode SPI clocking (CPOL=0/1, CPHA=0/1).
The command set includes standard SPI opcodes plus extended Multi-I/O instructions for Dual/Quad/DDR transfers, with dedicated status register bits for block protection and advanced sector protection (ASP) controlled by boot code or password. Reset# doubles as IO3 in standard mode.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 128 Mbit (16 MB) - sufficient for full MCU boot image + configuration + OTA update partition |
| Supply Voltage | 1.7 V to 2.0 V - compatible with low-voltage SoC I/O domains and reduces system power |
| Max Read Speed | 80 MBps (DDR Quad I/O @ 80 MHz) - enables near-zero latency XIP execution from flash |
| Erase Endurance | 100,000 cycles - supports field firmware updates over 10+ years in industrial gateways |
| Data Retention | 20 years at +85°C - validated for long-life deployment in unattended edge nodes |
| Temperature Grade | Industrial Plus (–40°C to +105°C) - qualified for under-hood automotive ECUs and industrial PLCs |
| Security Features | 1024-byte OTP array + hardware/software block protection + ASP - enables secure boot key storage and sector lockdown |
Pinout & Package
Package: WSON 6 × 5 mm (WND008), 8-pin, lead-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for SPI command latching; must be held low during multi-byte transfers |
| SO / IO1 | Serial Output / I/O Line 1 | Default output-only in standard SPI; becomes bidirectional in Dual/Quad I/O modes |
| WP# / IO2 | Write Protect / I/O Line 2 | Hardware lock for top/bottom sectors when WP# = low; functions as IO2 in Quad mode |
| IO3 / RESET# | I/O Line 3 / Reset Input | Reset assertion resets internal state machine; serves as IO3 in Quad/DDR modes |
| SI / IO0 | Serial Input / I/O Line 0 | Command/data input in standard mode; bidirectional in Multi-I/O configurations |
| SCK | Serial Clock | Edge-triggered clock for synchronous data transfer; supports up to 133 MHz SDR or 80 MHz DDR |
| VCC | Power Supply | 1.8 V core and I/O supply; decoupling capacitor required within 5 mm of pin |
| VSS | Ground | Signal and power return path; requires low-inductance connection to PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| DDR Quad I/O Interface | Enables 80 MBps read throughput without parallel bus routing, reducing PCB layer count |
| Hybrid Sector Architecture | Combines eight 4-KB + one 32-KB sectors at address boundaries for flexible bootloader + parameter partitioning |
| Hardware ECC Engine | Corrects single-bit errors on-the-fly during reads, eliminating need for external error-handling logic |
| Program/Erase Suspend | Allows interrupting background erase to service high-priority read requests-critical for real-time firmware updates |
| Advanced Sector Protection (ASP) | Permits password-locked read access control on individual sectors, supporting secure OTA update staging |
Applications
| Automotive Instrument Cluster | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Storing calibrated gauge graphics, driver profile settings, and firmware patches in digital dashboards. IC Role / Device Role / Timing Role: Nonvolatile code and data storage with AEC-Q100 Grade 2 qualification and 105°C operation. Use Value: Enables seamless over-the-air updates while maintaining ASIL-B functional safety compliance via OTP-secured boot loader. | Use Scenario: Holding ladder logic programs, I/O mapping tables, and calibration coefficients in programmable logic controllers. IC Role / Device Role / Timing Role: High-reliability firmware repository supporting 100k+ write cycles across 15-year deployments. Use Value: Eliminates external ECC logic and extends field service life beyond 20 years with guaranteed data retention at 85°C. |
| Medical Imaging Boot Memory | Smart Energy Meter Code Storage |
Use Scenario: Hosting boot firmware and FPGA configuration bitstreams for portable ultrasound devices. IC Role / Device Role / Timing Role: Fast XIP-capable flash with DDR Quad I/O for sub-100ms cold boot time. Use Value: Reduces boot latency by 4× vs. standard SPI flash, meeting FDA-required power-on self-test timing windows. | Use Scenario: Storing metrology algorithms, tariff tables, and encrypted communication keys in ANSI C12.22-compliant meters. IC Role / Device Role / Timing Role: Secure storage with 1024-byte OTP and ASP for cryptographic key isolation. Use Value: Meets NIST SP 800-193 requirements for firmware integrity verification using hardware-protected registers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Cypress S25FL128SAGNFI101 | Same die, legacy Cypress branding; identical electrical specs and pinout; no functional difference | Identical use cases; supported by same Infineon software tools and drivers | Select when sourcing from legacy inventory or distributor stock labeled under Cypress part numbering |
| Winbond W25Q128JVSIM | 3.3 V supply only; lacks DDR mode and ASP; 64-KB uniform sectors only; no AEC-Q100 qualification | Restricted to commercial-grade consumer applications; unsuitable for automotive or extended-temp industrial use | Consider only for cost-sensitive non-automotive designs where 1.8 V operation and advanced security are not required |
Compared with S25FL128SAGNFI101, this part offers full backward compatibility with no design change; versus W25Q128JVSIM, it delivers 1.8 V operation, DDR performance, and automotive qualification-justifying its use in safety-critical or thermally demanding systems.
Availability
S25FS128SAGNFI100 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLCs, medical imaging boot systems, and smart energy meter deployments requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for S25FS128SAGNFI100 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, sensor, and memory solutions for automotive, industrial, and IoT applications.
The FS-S Flash family targets high-reliability embedded systems needing fast, secure, and long-life nonvolatile storage-specifically optimized for automotive ADAS, industrial automation, and medical equipment with stringent AEC-Q100 and data retention requirements.
FAQ
What is the maximum clock frequency supported in DDR Quad I/O mode?
The S25FS128SAGNFI100 supports DDR Quad I/O operation at up to 80 MHz clock frequency, delivering 80 MBps effective read bandwidth. This is specified in the AC characteristics section (Table 6.5) of the datasheet and validated across the full Industrial Plus temperature range (–40°C to +105°C).
Does this device require external ECC circuitry?
No. The device integrates a hardware ECC engine that automatically detects and corrects single-bit errors during read operations. No external error-correction logic or software overhead is needed, and correction occurs transparently without CPU intervention or latency penalty.
Can the 1024-byte OTP array be used for cryptographic key storage?
Yes. The OTP array is write-once and permanently locked after programming, making it suitable for storing root keys, device identifiers, or secure boot hashes. Access can be further restricted using Advanced Sector Protection with password-based read control per sector.
Is the WSON 6 × 5 mm package pin-compatible with earlier S25FL-P series devices?
Yes. The WND008 package (6 × 5 mm, 8-pin) maintains identical pinout, footprint, and signal definitions with S25FL128P and S25FL256P devices. Migration requires only minor register configuration updates due to enhanced command set and SFDP parameter extensions.
S25FS128SAGNFI100 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FS-S
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tray
- 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:
- 1.7V ~ 2V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (5x6)
S25FS128SAGNFI100 FAQ
1.How can I place an order for S25FS128SAGNFI100 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FS128SAGNFI100 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 S25FS128SAGNFI100 reliable?
The price and inventory of S25FS128SAGNFI100 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FS128SAGNFI100 is usually 5 days.
3.What payment methods are accepted for S25FS128SAGNFI100?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FS128SAGNFI100 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FS128SAGNFI100?
S25FS128SAGNFI100 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FS128SAGNFI100 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 S25FS128SAGNFI100?
For technical support, including S25FS128SAGNFI100 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FS128SAGNFI100 requirements.
6.How does Aetrix verify that S25FS128SAGNFI100 is sourced from the original manufacturer or authorized distributors?
All S25FS128SAGNFI100 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 S25FS128SAGNFI100 meets industry standards.
7.What is the process for return or replacement of S25FS128SAGNFI100?
All S25FS128SAGNFI100 units undergo pre-shipment inspection (PSI). If there is an issue with S25FS128SAGNFI100, 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 S25FS128SAGNFI100 part is unused and in its original packaging.
Return procedure for S25FS128SAGNFI100:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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