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Cypress Semiconductor Corp S25FS128SAGNFI003
- Part No.:
- S25FS128SAGNFI003
- Manufacturer:
- Cypress Semiconductor Corp
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
S25FS128SAGNFI003.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:7,500
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Product details
Overview
S25FS128SAGNFI003 from Infineon is a 128 Mb (16 MB) serial NOR flash memory IC with SPI Multi-I/O interface, 1.8 V supply, and industrial temperature grade (–40°C to +85°C). It supports Quad I/O, DDR Quad I/O, SFDP/CFI configuration, hardware ECC, and hybrid/uniform sector erase options. Used in boot code storage for embedded microcontrollers in industrial control systems.
For engineers reviewing the S25FS128SAGNFI003 datasheet, S25FS128SAGNFI003 pinout, S25FS128SAGNFI003 application, or S25FS128SAGNFI003 equivalent, key selection criteria include 133 MHz fast read rate, 66 MBps Quad read throughput, 100,000 program-erase cycles, 20-year data retention, and AEC-Q100 Grade 3 qualification for automotive firmware storage.
Technical Context
This device implements Infineon's Eclipse architecture with 65-nm MIRRORBIT™ technology, enabling high-density nonvolatile storage with deterministic timing. Its SPI-MIO interface supports both SDR and DDR modes, configurable 24-/32-bit addressing, and command subsets compatible with legacy S25FL-A/K/P/S families.
The flash integrates on-die ECC (single-bit correction), programmable block protection via status register bits, and Advanced Sector Protection with password-controlled access. Erase architecture offers flexible hybrid sector layouts (eight 4-KB + one 32-KB or 224-KB sectors) plus uniform 64-KB/256-KB options for software compatibility.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 128 Mbits (16 MB) - fixed capacity for boot image and firmware partitioning |
| Supply Voltage | 1.7 V to 2.0 V - optimized for low-power 1.8 V system rails |
| Read Throughput | 66 MBps (Quad I/O, 133 MHz) - enables XIP execution with sub-100 ns effective latency |
| Erase Endurance | 100,000 cycles minimum - supports field firmware updates over product lifetime |
| Data Retention | 20 years minimum at +85°C - ensures long-term reliability in unpowered storage |
| Temperature Grade | Industrial (–40°C to +85°C) - validated for operation in factory automation environments |
| ECC Support | On-die hardware single-bit error correction - eliminates need for external ECC logic |
Pinout & Package
Package: 8-lead SOIC 208 mil (SOC008), Pb-free, industrial-grade package with standard footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for SPI command/address/data transactions |
| SCK | Serial Clock | Input clock for SDR or DDR mode; supports up to 133 MHz |
| IO0 (SI) | Serial Input / IO0 | Primary data input in single/dual/quad modes; bidirectional in MIO |
| IO1 (SO) | Serial Output / IO1 | Primary data output in single/dual/quad modes; bidirectional in MIO |
| IO2 (WP#) | Write Protect / IO2 | Hardware write protection enable or secondary I/O line in quad mode |
| IO3 (RESET#) | Reset / IO3 | Hardware reset input or tertiary I/O line; also used for deep power-down exit |
| VCC | Power Supply | 1.7–2.0 V core supply; decoupling required per datasheet layout guidelines |
| VSS | Ground | Signal and power reference; separate ground plane recommended |
Key Features
| Feature | Design Value |
|---|---|
| DDR Quad I/O Read | 80 MBps at 80 MHz DDR clock - doubles bandwidth vs. SDR Quad without increasing pin count |
| Hybrid Sector Erase | Eight 4-KB + one 32-KB sectors at top/bottom - enables secure boot region isolation |
| OTP Array | 1024-byte one-time-programmable space - stores cryptographic keys or calibration data permanently |
| Advanced Sector Protection | Password-controlled read/write lock per sector - prevents unauthorized firmware access or modification |
| Deep Power-Down Mode | 6 µA typical current - extends battery life in always-on edge devices during idle periods |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing boot loader and real-time OS kernel in programmable logic controllers with frequent field updates. IC Role / Device Role / Timing Role: Primary nonvolatile boot memory with XIP-capable continuous read mode and suspend/resume erase capability. Use Value: 100,000 erase cycles and 20-year retention ensure >10-year deployment without refresh; hybrid sectors isolate critical boot code from application updates. | Use Scenario: Holding safety-critical boot firmware for radar processing units in Level 2+ ADAS systems. IC Role / Device Role / Timing Role: AEC-Q100 Grade 3 qualified SPI flash providing deterministic boot timing and ECC-protected instruction fetch. Use Value: On-die ECC and password-locked ASP prevent corruption or tampering of boot images; Quad DDR read enables <50 ms cold boot time. |
| Medical Imaging Device Configuration | Smart Grid Communication Module |
Use Scenario: Storing calibrated sensor profiles and regulatory-compliant diagnostic routines in portable ultrasound equipment. IC Role / Device Role / Timing Role: Secure configuration store with OTP key storage and hardware write protection for audit-trail integrity. Use Value: 1024-byte OTP array holds cryptographic keys; WP# pin enables hardware-level lockdown during manufacturing calibration. | Use Scenario: Hosting protocol stack firmware and encryption keys in DIN-rail-mounted IoT gateways for utility metering networks. IC Role / Device Role / Timing Role: High-reliability SPI flash supporting remote firmware updates over narrowband PLC links. Use Value: 66 MBps Quad read throughput accelerates OTA update verification; deep power-down mode reduces standby consumption to 6 µA. |
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 S25FL128SAGNFI001 | Same die, identical pinout and command set; minor revision delta in SFDP parameter table version | No functional difference; supported by same Infineon/Cypress unified software drivers | Select when sourcing from legacy Cypress-designated inventory or toolchains requiring exact part number match |
| Winbond W25Q128JVSIM | 1.8 V, 128 Mb, but lacks DDR mode, ASP, and hybrid sector options; no AEC-Q100 qualification | Suitable for cost-sensitive consumer applications without safety or security requirements | Choose only for non-automotive/non-industrial designs where ECC, password protection, and DDR bandwidth are not required |
Compared with S25FS128SAGNFI003, the Cypress alternative offers full functional equivalence with revision-level consistency, while the Winbond part trades security, endurance, and automotive qualification for lower unit cost in less demanding environments.
Availability
S25FS128SAGNFI003 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging device configuration requiring stable component supply across extended product lifecycles.
Supply support for S25FS128SAGNFI003 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 applications.
The S25FS-S family targets high-reliability embedded systems needing secure, high-speed, long-life nonvolatile storage with automotive qualification and advanced data protection features.
FAQ
Is S25FS128SAGNFI003 pin-compatible with earlier S25FL-S series devices?
Yes - it maintains identical 8-lead SOIC 208 mil (SOC008) pinout and SPI command subset compatibility with S25FL-S devices, including support for legacy Fast Read and Dual I/O commands. No PCB redesign is needed for migration from S25FL128SAGNFI001 or similar variants.
Does this device support execute-in-place (XIP) operation?
Yes - the S25FS128SAGNFI003 supports continuous read mode with wrap burst, enabling true XIP execution from flash memory. This allows microcontrollers to fetch instructions directly without copying to RAM, reducing boot time and SRAM usage in resource-constrained systems.
What is the function of the IO3/RESET# pin in normal operation?
In normal operation, IO3 serves as the RESET# input: a low pulse resets internal state machines and exits deep power-down mode. During Quad I/O operations, it functions as the fourth bidirectional data line (IO3), enabling full 4-bit parallel transfers without additional pins.
How is the 1024-byte OTP array accessed and protected?
The OTP array is accessed via dedicated JEDEC-standard One-Time Program commands (0x4B, 0x42). Once programmed, bits cannot be erased. Protection is enforced by status register lock bits and requires Write Enable before programming; physical fuse-based irreversibility ensures permanent key storage for cryptographic or calibration use cases.
S25FS128SAGNFI003 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Cypress Semiconductor Corp
- Series:
- FS-S
- Package/Case:
- 8-WDFN Exposed Pad
- 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:
- 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 (6x8)
S25FS128SAGNFI003 FAQ
1.How can I place an order for S25FS128SAGNFI003 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FS128SAGNFI003 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 S25FS128SAGNFI003 reliable?
The price and inventory of S25FS128SAGNFI003 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FS128SAGNFI003 is usually 5 days.
3.What payment methods are accepted for S25FS128SAGNFI003?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FS128SAGNFI003 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FS128SAGNFI003?
S25FS128SAGNFI003 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FS128SAGNFI003 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 S25FS128SAGNFI003?
For technical support, including S25FS128SAGNFI003 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FS128SAGNFI003 requirements.
6.How does Aetrix verify that S25FS128SAGNFI003 is sourced from the original manufacturer or authorized distributors?
All S25FS128SAGNFI003 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 S25FS128SAGNFI003 meets industry standards.
7.What is the process for return or replacement of S25FS128SAGNFI003?
All S25FS128SAGNFI003 units undergo pre-shipment inspection (PSI). If there is an issue with S25FS128SAGNFI003, 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 S25FS128SAGNFI003 part is unused and in its original packaging.
Return procedure for S25FS128SAGNFI003:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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