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Infineon Technologies S25FS256SDSNFI003
- Part No.:
- S25FS256SDSNFI003
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
S25FS256SDSNFI003.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,385
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Product details
Overview
S25FS256SDSNFI003 from Infineon is a 256 Mb (32 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 grade (–40°C to +85°C). It is used in embedded boot code storage for industrial controllers requiring fast XIP execution and secure firmware updates.
For engineers reviewing the S25FS256SDSNFI003 datasheet, S25FS256SDSNFI003 pinout, S25FS256SDSNFI003 application, or S25FS256SDSNFI003 equivalent, key selection criteria include 1.8 V operation, hybrid/ uniform sector erase options, integrated ECC, OTP array, and AEC-Q100 Grade 3 qualification for automotive control modules.
Technical Context
This device implements a SPI-MIO interface compliant with JEDEC JESD216 SFDP and CFI standards, enabling automatic configuration discovery and seamless integration into legacy and next-generation boot loaders. It supports both SDR and DDR command protocols, with configurable address width (24-/32-bit), burst wrap, and continuous XIP mode for deterministic instruction fetch latency.
The internal architecture includes dual-bank erase capability, hardware-accelerated ECC (single-bit correction), and programmable block protection via status register bits or advanced sector protection (ASP) with password-controlled access. Erase granularity includes 4-KB, 32-KB, 64-KB, 224-KB, and 256-KB sectors depending on configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 256 Mbit (32 MB) - sufficient for full firmware image + parameter storage in mid-tier microcontrollers |
| Supply Voltage | 1.7 V to 2.0 V - compatible with low-voltage SoC I/O domains and reduces system power consumption |
| Max Read Speed | 80 MBps (DDR Quad I/O @ 80 MHz) - enables sub-500 µs boot time for 1 MB image with XIP |
| Erase Endurance | 100,000 cycles - supports field firmware updates over 10+ years in industrial gateways |
| Data Retention | 20 years minimum at +85°C - ensures long-term reliability without refresh in sealed enclosures |
| Temperature Range | –40°C to +85°C (Industrial Grade) - validated for deployment in factory automation PLCs |
| Page Buffer Size | 512 bytes - allows efficient partial-page programming during OTA patching |
Pinout & Package
Package: 8-pin SOIC 208 mil (SOC008) - lead-free, surface-mount, standard footprint for high-volume PCB assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for SPI command decoding; supports daisy-chain or multi-device bus sharing |
| SO / IO1 | Serial Output / I/O1 | Primary data output in single I/O mode; becomes bidirectional I/O1 in Dual/Quad modes |
| WP# / IO2 | Write Protect / I/O2 | Hardware lock for top/bottom sectors when asserted; serves as I/O2 in Quad I/O mode |
| IO3 / RESET# | I/O3 / Reset Input | Configurable as Quad I/O line or hardware reset trigger; enables in-system recovery without power cycle |
| SI / IO0 | Serial Input / I/O0 | Command/data input in single I/O; becomes bidirectional I/O0 in Multi-I/O modes |
| SCK | Serial Clock | Edge-triggered clock input; supports modes 0 and 3 for compatibility with diverse host controllers |
| VCC | Power Supply | 1.8 V core and I/O supply; decoupling required within 5 mm of pin per layout guidelines |
| VSS | Ground | Signal reference plane; must be connected to low-impedance ground plane for signal integrity |
Key Features
| Feature | Design Value |
|---|---|
| Integrated ECC engine | Single-bit error correction performed automatically during read, eliminating need for external error-handling logic |
| Hybrid sector architecture | Eight 4-KB + one 32-KB sectors at top/bottom address space enables fine-grained firmware partitioning |
| OTP array (1024 B) | Immutable storage for cryptographic keys or device-specific calibration data, programmed once during manufacturing |
| Advanced Sector Protection (ASP) | Password-controlled read/write lock per sector, enabling secure bootloader and application separation |
| SFDP v1.6 compliance | Self-describing configuration parameters allow runtime initialization without hard-coded timing or command tables |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing real-time control firmware and configuration tables in programmable logic controllers deployed in harsh factory environments. IC Role / Device Role / Timing Role: Primary boot memory mapped for XIP execution; provides deterministic latency under 100 ns for instruction fetch. Use Value: 20-year data retention and 100K erase cycles ensure firmware integrity across extended maintenance intervals without replacement. | Use Scenario: Holding boot code and safety-critical sensor fusion algorithms in front-camera ECU modules certified to ISO 26262 ASIL-B. IC Role / Device Role / Timing Role: Secure nonvolatile storage with ASP-enabled sector locking; supports AEC-Q100 Grade 3 thermal validation. Use Value: OTP array stores asymmetric keys for secure boot verification; hardware ECC prevents silent corruption in radiation-prone vehicle cabins. |
| Medical Imaging System Configuration | Smart Energy Meter Firmware |
Use Scenario: Hosting calibration profiles, DICOM metadata templates, and regulatory-compliant update manifests in portable ultrasound devices. IC Role / Device Role / Timing Role: Secondary flash for field-upgradable configuration data; accessed via SPI-MIO to minimize MCU pin count. Use Value: Quad I/O read speed (66 MBps) enables <100 ms load time for 1 MB calibration dataset during power-on self-test. | Use Scenario: Storing tariff tables, communication stack binaries, and tamper-event logs in ANSI C12.22-compliant smart meters deployed outdoors. IC Role / Device Role / Timing Role: High-reliability firmware archive with deep power-down current (6 µA) for battery-backed operation during grid outage. Use Value: Uniform 256-KB sector erase simplifies over-the-air firmware updates while maintaining 100K-cycle endurance over 15-year service life. |
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 S25FS256SAGNFI010 | Same die, identical pinout and timing, but rated for Industrial Plus (–40°C to +105°C) | Required for extended-temperature industrial gateways or outdoor base stations | Select when ambient operating temperature exceeds +85°C |
| Winbond W25Q256JWSIQ | 256 Mb, 1.8 V, but lacks DDR Quad I/O support and integrated ECC; uses different SFDP structure | Suitable for cost-sensitive consumer IoT where ECC and high-speed read are not mandatory | Choose only if host controller does not require DDR or hardware ECC offload |
Compared with S25FS256SDSNFI003, the Infineon S25FS256SAGNFI010 extends thermal range without changing interface behavior, while the Winbond W25Q256JWSIQ trades DDR performance and ECC for lower unit cost and broader distributor availability.
Availability
S25FS256SDSNFI003 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and smart energy meter firmware requiring stable component supply across multi-year production cycles.
Supply support for S25FS256SDSNFI003 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 renewable energy systems.
The FS-S Flash family targets high-reliability embedded boot and code storage, emphasizing security (OTP, ASP), endurance, and interoperability with modern MCU boot ROMs via SFDP and XIP support.
FAQ
What is the maximum clock frequency supported in DDR Quad I/O mode?
The S25FS256SDSNFI003 supports DDR Quad I/O read operations at up to 80 MHz clock frequency, delivering 80 MBps effective throughput. This is specified in the AC characteristics section (Table 6.5) of the datasheet and requires proper impedance-controlled routing and termination matching on the host board.
Does this device support 32-bit addressing for >16 MB memory maps?
Yes, the S25FS256SDSNFI003 supports both 24-bit and 32-bit addressing modes via the Extended Address Register (EAR). When configured for 32-bit addressing, it enables full linear access to the entire 256 Mb array without bank switching, essential for large firmware images in Cortex-M7/A-class SoCs.
How is the OTP array protected after programming?
The 1024-byte OTP array is permanently locked after programming by setting the OTP Lock bit (SR[7]) in the status register. Once locked, no further writes or erases are possible to the OTP region, and read access remains enabled unless disabled by Advanced Sector Protection with password enforcement.
Can the device enter deep power-down mode during active SPI transactions?
No. Deep power-down mode (DPD) can only be entered when CS# is high and no command is in progress. The device must complete all ongoing reads, programs, or erases before issuing the DPD command (0xB9); otherwise, the command is ignored and status register BUSY remains set.
S25FS256SDSNFI003 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- 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:
- 256Mbit
- Memory Organization:
- 32M 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:
- 8-WSON (6x8)
S25FS256SDSNFI003 FAQ
1.How can I place an order for S25FS256SDSNFI003 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FS256SDSNFI003 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 S25FS256SDSNFI003 reliable?
The price and inventory of S25FS256SDSNFI003 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FS256SDSNFI003 is usually 5 days.
3.What payment methods are accepted for S25FS256SDSNFI003?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FS256SDSNFI003 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FS256SDSNFI003?
S25FS256SDSNFI003 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FS256SDSNFI003 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 S25FS256SDSNFI003?
For technical support, including S25FS256SDSNFI003 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FS256SDSNFI003 requirements.
6.How does Aetrix verify that S25FS256SDSNFI003 is sourced from the original manufacturer or authorized distributors?
All S25FS256SDSNFI003 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 S25FS256SDSNFI003 meets industry standards.
7.What is the process for return or replacement of S25FS256SDSNFI003?
All S25FS256SDSNFI003 units undergo pre-shipment inspection (PSI). If there is an issue with S25FS256SDSNFI003, 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 S25FS256SDSNFI003 part is unused and in its original packaging.
Return procedure for S25FS256SDSNFI003:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FS256SDSNFI003 Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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