Cypress Semiconductor Corp S25FS128SDSBHI300
- Part No.:
- S25FS128SDSBHI300
- Manufacturer:
- Cypress Semiconductor Corp
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
S25FS128SDSBHI300.pdf
- Description:
- FLASH - NOR MEMORY IC 128MB (16M
- Quantity:
- Payment:

- Shipping:

Inventory:925
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Product details
Overview
S25FS128SDSBHI300 from Infineon is a 128 Mbit (16 MB) serial NOR flash memory IC with SPI Multi-I/O interface, 1.8 V supply, industrial temperature grade (–40°C to +85°C), WSON 6 × 5 mm package, and integrated hardware ECC for single-bit error correction. It supports Quad I/O, DDR Quad I/O, SFDP/CFI configuration, and hybrid/uniform sector erase options.
For engineers reviewing the S25FS128SDSBHI300 datasheet, S25FS128SDSBHI300 pinout, S25FS128SDSBHI300 application, or S25FS128SDSBHI300 equivalent, this device is selected for boot code storage in resource-constrained embedded controllers, firmware update storage in industrial gateways, and secure configuration data retention in automotive ECUs requiring AEC-Q100-compliant nonvolatile memory.
Technical Context
This SPI flash implements Eclipse architecture with 65-nm MIRRORBIT™ technology, enabling high-speed read operations up to 80 MBps via DDR Quad I/O mode at 80 MHz clock. It supports both 24- and 32-bit addressing, SFDP v1.6+ for auto-configuration, and dual-mode command sets compatible with legacy S25FL-P/S families.
The device integrates dedicated status registers for block protection, OTP array for secure key storage, and programmable sector protection logic supporting password-controlled read access. Erase algorithms include suspend/resume capability and hybrid sector layout (eight 4-KB + one 32-KB sectors) for flexible firmware partitioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 128 Mbit (16 MB) - sufficient for full bootloader + secure firmware image in microcontroller-based systems |
| Interface | SPI Multi-I/O with Quad/DDR Quad support - enables XIP-capable continuous read and burst wrap modes |
| Read Speed | 80 MBps DDR Quad I/O - reduces boot latency by >3× vs standard SPI read in real-time applications |
| Erase Endurance | 100,000 program-erase cycles - supports field firmware updates over 10+ years in deployed industrial equipment |
| Data Retention | 20 years minimum - ensures configuration integrity across product lifecycle without refresh |
| Supply Voltage | 1.7 V to 2.0 V - matches low-voltage I/O domains of modern ARM Cortex-M and RISC-V SoCs |
| Temperature Range | –40°C to +85°C (Industrial grade) - validated for operation in uncontrolled ambient environments |
Pinout & Package
Package: WSON 6 × 5 mm (WND008), 8-pin, Pb-free, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CS#) | Chip Select | Active-low enable for SPI command decoding; must be held low during entire transaction |
| 2 (DO/IO1) | Serial Output / I/O1 | Output during standard read; bidirectional in Dual/Quad I/O modes for data transfer |
| 3 (WP#/IO2) | Write Protect / I/O2 | Hardware lock for sector protection when asserted; functions as I/O2 in Quad mode |
| 4 (VSS) | Ground | Signal and power reference plane; requires low-inductance connection to PCB ground plane |
| 5 (VCC) | Power Supply | 1.8 V core supply; bypass capacitor (1 µF ceramic) required within 5 mm of pin |
| 6 (SI/IO0) | Serial Input / I/O0 | Command/address/data input in standard mode; bidirectional I/O0 in Multi-I/O protocols |
| 7 (SCK) | Serial Clock | Edge-triggered clock input; supports up to 133 MHz SDR or 80 MHz DDR operation |
| 8 (RESET#/IO3) | Reset / I/O3 | Hardware reset input; serves as I/O3 in Quad mode for expanded data bus width |
Key Features
| Feature | Design Value |
|---|---|
| Hardware ECC engine | On-the-fly single-bit error correction with no software overhead or latency penalty |
| Hybrid sector architecture | Eight 4-KB + one 32-KB sectors at top/bottom address space enables fine-grained firmware partitioning |
| OTP array | 1024-byte one-time programmable region for cryptographic keys or calibration data binding |
| Advanced Sector Protection | Password-controlled individual sector locking prevents unauthorized read/write/erase of critical firmware sections |
| SFDP v1.6+ compliance | Enables automatic driver initialization and runtime parameter discovery without hard-coded timing values |
Applications
| Boot Code Storage | Firmware Update Storage |
|---|---|
Use Scenario: Storing primary bootloader and initial firmware image in an ARM Cortex-M7-based motor controller. IC Role / Device Role / Timing Role: Nonvolatile boot memory mapped via XIP interface; delivers instruction fetches at ≤80 MBps to minimize startup delay. Use Value: Enables deterministic <100 ms cold boot time while maintaining AEC-Q100 Grade 2 thermal reliability. | Use Scenario: Holding delta firmware patches and rollback images in a smart grid IoT gateway. IC Role / Device Role / Timing Role: Field-upgradable storage partition with erase suspend/resume for atomic OTA updates under intermittent power. Use Value: Guarantees update integrity across 100,000+ cycles and 20-year data retention without external error management. |
| Secure Configuration Storage | Real-Time OS Kernel Image |
Use Scenario: Storing encrypted device identity keys and calibrated sensor offsets in an industrial PLC module. IC Role / Device Role / Timing Role: Secure silicon region (OTP) + ASP-protected sectors prevent tampering during manufacturing and field deployment. Use Value: Meets IEC 62443-3-3 requirements for secure boot root-of-trust with hardware-enforced write protection. | Use Scenario: Hosting RTOS kernel binary and critical task stacks in a safety-critical rail signaling controller. IC Role / Device Role / Timing Role: High-reliability NOR flash with ECC and 20-year retention used for deterministic kernel load at system reset. Use Value: Eliminates need for RAM-based checksum validation, reducing BOM cost and boot sequence complexity. |
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 S25FS128SAGNFI010 | Same die, identical pinout and electrical specs; differs only in marking and tape/reel packaging | No functional difference; suitable for drop-in replacement where packaging format is acceptable | Select when sourcing from legacy Cypress channel or requiring specific reel orientation |
| Winbond W25Q128JVSIM | 1.8 V Quad SPI NOR; lacks DDR mode, SFDP v1.6+, and ASP; 64-KB uniform sectors only | Lower-cost option for non-XIP, non-security-critical applications with simpler erase requirements | Choose only if DDR performance, OTP, or advanced sector protection are not required |
Compared with S25FS128SDSBHI300, the Cypress alternative offers identical functionality with packaging variance, while the Winbond part trades DDR speed, security features, and flexible sector architecture for lower unit cost in less demanding designs.
Availability
S25FS128SDSBHI300 is available at Aetrix Electronics and suitable for industrial control systems, automotive ECU firmware storage, and secure IoT edge node boot applications requiring stable component supply and long-term lifecycle assurance.
Supply support for S25FS128SDSBHI300 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, sensing, and memory solutions for industrial, automotive, and IoT markets.
The FS-S Flash family targets high-reliability embedded systems needing fast, secure, and configurable nonvolatile storage with AEC-Q100 qualification and extended data retention.
FAQ
Does S25FS128SDSBHI300 support execute-in-place (XIP) operation?
Yes, it supports XIP via Continuous Read mode with burst wrap addressing, enabling direct instruction execution from flash without copying to RAM. This requires host MCU SPI controller support for continuous clocking and proper address alignment per the device's page boundaries and SFDP-defined parameters.
What is the function of the RESET# pin during normal operation?
When not used for hardware reset, RESET# serves as IO3 in Quad I/O mode, expanding the data bus to four lines for higher throughput. Its dual role is controlled by configuration register bit CR3[1], and it must be pulled high via 10 kΩ resistor if unused as reset to avoid floating state.
How does the hybrid sector option affect firmware partitioning?
The hybrid layout provides eight 4-KB sectors plus one 32-KB sector at either end of the address space, allowing small, frequently updated regions (e.g., NV counters) alongside larger firmware blocks. Remaining sectors are 64 KB, balancing granularity and erase efficiency for typical embedded code sizes.
Is the OTP array reprogrammable after initial programming?
No, the 1024-byte OTP array is permanently programmed once written; each byte can be set from FFh to any value but cannot be reverted. It is intended for immutable data such as cryptographic keys, device serial numbers, or calibration constants that must survive all subsequent erase cycles.
S25FS128SDSBHI300 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Cypress Semiconductor Corp
- Series:
- FS-S
- Package/Case:
- 24-TBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-BGA (6x8)
S25FS128SDSBHI300 FAQ
1.How can I place an order for S25FS128SDSBHI300 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FS128SDSBHI300 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 S25FS128SDSBHI300 reliable?
The price and inventory of S25FS128SDSBHI300 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FS128SDSBHI300 is usually 5 days.
3.What payment methods are accepted for S25FS128SDSBHI300?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FS128SDSBHI300 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FS128SDSBHI300?
S25FS128SDSBHI300 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FS128SDSBHI300 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 S25FS128SDSBHI300?
For technical support, including S25FS128SDSBHI300 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FS128SDSBHI300 requirements.
6.How does Aetrix verify that S25FS128SDSBHI300 is sourced from the original manufacturer or authorized distributors?
All S25FS128SDSBHI300 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 S25FS128SDSBHI300 meets industry standards.
7.What is the process for return or replacement of S25FS128SDSBHI300?
All S25FS128SDSBHI300 units undergo pre-shipment inspection (PSI). If there is an issue with S25FS128SDSBHI300, 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 S25FS128SDSBHI300 part is unused and in its original packaging.
Return procedure for S25FS128SDSBHI300:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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