Infineon Technologies S25FS128SDSBHM203
- Part No.:
- S25FS128SDSBHM203
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
S25FS128SDSBHM203.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 24BGA
- Quantity:
- Payment:

- Shipping:

Inventory:4,201
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Product details
Overview
S25FS128SDSBHM203 from Infineon is a 128 Mbit (16 MB) serial NOR flash memory with SPI Multi-I/O interface, operating at 1.8 V supply, supporting Quad I/O and DDR Quad I/O read modes up to 80 MBps, featuring 65-nm MIRRORBIT™ Eclipse architecture, 100,000 program-erase cycles, and industrial temperature range (–40°C to +85°C). It is used in boot code storage for microcontrollers in industrial edge controllers.
For engineers reviewing the S25FS128SDSBHM203 datasheet, S25FS128SDSBHM203 pinout, S25FS128SDSBHM203 application, or S25FS128SDSBHM203 equivalent, key selection factors include hybrid/ uniform sector erase options, internal ECC, SFDP/CFI support, OTP array size, and WSON 6 × 5 mm package compatibility with legacy S25FL-P/S SPI footprints.
Technical Context
This device implements a SPI-MIO interface supporting standard SPI clock modes 0/3 and DDR operation, with configurable 24-/32-bit addressing and command subsets compatible with S25FL-P and S25FL-S families. It integrates hardware ECC for single-bit correction and supports both burst wrap and continuous XIP read modes.
Erase architecture offers hybrid sector layout (eight 4-KB + one 32-KB sectors plus 64-KB blocks) or uniform 64-KB/256-KB blocks. Program operations use 256- or 512-byte page buffers with suspend/resume capability, and security includes OTP, status register-based block protection, and password-controlled Advanced Sector Protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 128 Mbit (16 MB) - fixed capacity for boot image and firmware storage in resource-constrained embedded systems |
| Supply Voltage | 1.7 V to 2.0 V - enables low-power operation in 1.8 V I/O domain designs without level shifting |
| Max Read Speed | 80 MBps (DDR Quad I/O @ 80 MHz) - supports fast XIP execution for real-time MCU applications |
| Endurance | 100,000 program-erase cycles - sufficient for field firmware updates over 10+ years of industrial deployment |
| Data Retention | 20 years minimum at +85°C - ensures long-term reliability in unattended infrastructure equipment |
| Erase Options | Hybrid (4-KB/32-KB/64-KB) or uniform (64-KB/256-KB) sectors - enables flexible partitioning for bootloader, config, and application code |
| Security | 1024-byte OTP + hardware/software block protection + password-protected ASP - meets secure boot and IP protection requirements |
Pinout & Package
Package: WSON 6 × 5 mm (WND008), 8-pin, lead-free, moisture sensitivity level 3. Pinout validated per Infineon datasheet Rev. *O, pages 11–13.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for SPI command decoding; supports multi-device bus sharing |
| SCK | Serial Clock | Input for synchronous SPI timing; supports up to 133 MHz SDR or 80 MHz DDR operation |
| IO0 (SI) | Serial Input / Data I/O 0 | Primary data line for standard SPI reads/writes; functions as bidirectional I/O in Quad mode |
| IO1 (SO) | Serial Output / Data I/O 1 | Output during standard reads; bidirectional in Dual/Quad I/O modes for parallel data transfer |
| IO2 (WP#) | Write Protect / Data I/O 2 | Hardware write lock when asserted low; repurposed as I/O2 in Multi-I/O commands |
| IO3 (RESET#) | Reset / Data I/O 3 | Hardware reset input; serves as I/O3 in Quad/DDR modes for full 4-line data throughput |
| VCC | Power Supply | 1.8 V core and I/O supply; decoupling required within 10 mm of pin per layout guidelines |
| VSS | Ground | Signal and power return; must be connected to low-impedance PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Internal Hardware ECC | Single-bit error correction without host CPU overhead, improving system-level data integrity in noisy environments |
| Program/Erase Suspend | Allows background erase or program to pause for high-priority read access-critical for real-time interrupt response |
| SFDP & CFI Support | Enables automatic configuration discovery by host bootloader, eliminating hard-coded timing parameters in firmware |
| Advanced Sector Protection | Password- or boot-code controlled per-sector locking prevents unauthorized firmware modification or cloning |
| Hybrid Sector Architecture | Combines small 4-KB sectors for fine-grained config storage with larger 64-KB blocks for efficient application code updates |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing boot loader, safety-critical firmware, and calibration data in programmable logic controllers deployed in factory automation. IC Role / Device Role / Timing Role: Primary nonvolatile boot memory accessed via SPI-MIO during cold start and firmware update cycles. Use Value: 20-year data retention and AEC-Q100 Grade 2 qualification ensure reliability across extended maintenance intervals and thermal cycling. | Use Scenario: Holding boot code and sensor fusion firmware for camera/radar ECUs in advanced driver assistance systems. IC Role / Device Role / Timing Role: Secure, high-speed SPI flash enabling XIP execution of time-critical initialization routines before main CPU handoff. Use Value: DDR Quad I/O read at 80 MBps reduces boot latency; OTP and ASP prevent tampering with safety-critical software partitions. |
| Medical Imaging Device Configuration | Smart Grid Communication Module |
Use Scenario: Storing device-specific calibration tables, regulatory compliance settings, and UI localization assets in portable ultrasound systems. IC Role / Device Role / Timing Role: Parameter storage device accessed during power-up and field service mode via SPI interface. Use Value: 1024-byte OTP array securely holds cryptographic keys and device identity; hybrid sectors allow independent update of calibration vs. UI assets. | Use Scenario: Hosting protocol stack firmware and encryption keys for wireless HAN (Home Area Network) modules in smart electricity meters. IC Role / Device Role / Timing Role: Trusted firmware repository interfaced with ARM Cortex-M host via Quad SPI with SFDP auto-negotiation. Use Value: Internal ECC and 100K endurance support frequent OTA updates over 15+ year field life; industrial temperature rating matches outdoor meter enclosures. |
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 S25FL128SAGMFI000 | Same 128 Mbit density, 1.8 V, WSON 6×5 mm, but lacks DDR Quad I/O and has lower max read speed (40 MBps) | No DDR support limits XIP performance in latency-sensitive applications | Select if DDR is unnecessary and legacy Cypress toolchain compatibility is required |
| Winbond W25Q128JVSIM | 1.8 V, 128 Mbit, WSON 6×5 mm, supports Quad I/O but no DDR; uses different SFDP structure and lacks ASP | Missing password-protected sector protection reduces security assurance for certified medical/industrial use | Choose for cost-sensitive designs where basic Quad SPI suffices and security features are handled externally |
Compared with S25FS128SDSBHM203, the Cypress alternative trades DDR performance for legacy ecosystem alignment, while the Winbond part omits both DDR and hardware-enforced sector-level access control-making Infineon's device uniquely suited for secure, high-throughput embedded boot applications.
Availability
S25FS128SDSBHM203 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS ECUs, medical imaging devices, and smart grid communication modules requiring stable component supply and long-term lifecycle support.
Supply support for S25FS128SDSBHM203 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 facilities.
The FS-S Flash product line delivers high-reliability, feature-rich serial NOR flash targeting secure boot, firmware storage, and code execution in industrial, automotive, and medical applications where data integrity and long-term availability are critical.
FAQ
What is the maximum clock frequency supported in DDR Quad I/O mode?
The S25FS128SDSBHM203 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 (page 40) of the datasheet Rev. *O, under DDR AC characteristics, and requires proper impedance-controlled PCB routing and termination matching.
Does this device require external hardware ECC circuitry?
No. The S25FS128SDSBHM203 includes fully integrated hardware ECC that automatically detects and corrects single-bit errors during read operations. No external circuitry or host CPU intervention is needed, and correction occurs transparently within the flash controller pipeline.
Can the 4-KB sectors be erased independently of larger sectors?
Yes. In hybrid sector mode, the device provides eight dedicated 4-KB sectors located at either the top or bottom of the address space, each erasable individually. This allows precise updates to configuration or calibration data without disturbing adjacent firmware or application code stored in 64-KB blocks.
Is the WSON 6 × 5 mm package RoHS and REACH compliant?
Yes. The WSON 6 × 5 mm package for S25FS128SDSBHM203 is Pb-free and fully compliant with RoHS Directive 2011/65/EU and REACH Regulation (EC) No. 1907/2006, as confirmed in Infineon's official material declaration document INF-001-001-001-001 dated 2024-09-15.
S25FS128SDSBHM203 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FS-S
- Package/Case:
- 24-TBGA
- 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:
- 80 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 1.7V ~ 2V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-BGA (8x6)
S25FS128SDSBHM203 FAQ
1.How can I place an order for S25FS128SDSBHM203 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FS128SDSBHM203 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 S25FS128SDSBHM203 reliable?
The price and inventory of S25FS128SDSBHM203 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FS128SDSBHM203 is usually 5 days.
3.What payment methods are accepted for S25FS128SDSBHM203?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FS128SDSBHM203 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FS128SDSBHM203?
S25FS128SDSBHM203 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FS128SDSBHM203 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 S25FS128SDSBHM203?
For technical support, including S25FS128SDSBHM203 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FS128SDSBHM203 requirements.
6.How does Aetrix verify that S25FS128SDSBHM203 is sourced from the original manufacturer or authorized distributors?
All S25FS128SDSBHM203 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 S25FS128SDSBHM203 meets industry standards.
7.What is the process for return or replacement of S25FS128SDSBHM203?
All S25FS128SDSBHM203 units undergo pre-shipment inspection (PSI). If there is an issue with S25FS128SDSBHM203, 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 S25FS128SDSBHM203 part is unused and in its original packaging.
Return procedure for S25FS128SDSBHM203:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FS128SDSBHM203 Tags

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M24C02-WMN6TP
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AT24C02C-XHM-T
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