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Infineon Technologies S25FS256SAGMFB001
- Part No.:
- S25FS256SAGMFB001
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
S25FS256SAGMFB001.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,353
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Product details
Overview
S25FS256SAGMFB001 from Infineon is a 256 Mb (32 MB) serial NOR flash memory IC with SPI Multi-I/O interface, 1.8 V supply, and industrial-plus temperature range (–40°C to +105°C). 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 hybrid/ uniform sector erase options for embedded boot code storage.
For engineers reviewing the S25FS256SAGMFB001 datasheet, S25FS256SAGMFB001 pinout, S25FS256SAGMFB001 application, or S25FS256SAGMFB001 equivalent, this device is selected for high-reliability firmware storage in automotive ADAS controllers, industrial PLCs, and network edge routers requiring fast XIP-capable read performance and AEC-Q100 Grade 2 qualification.
Technical Context
This SPI flash implements Eclipse architecture with 65-nm MIRRORBIT™ technology, supporting both SDR and DDR command protocols across SPI modes 0 and 3. It integrates SFDP v1.6 and CFI for auto-configuration and enables burst wrap and continuous XIP read modes via dedicated status and configuration registers.
The device uses dual-bank architecture for concurrent program/erase suspend-resume operations and includes a 1024-byte OTP array with password-controlled advanced sector protection (ASP), allowing fine-grained read/write lock per sector without external security IC dependency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 256 Mbit (32 MB) - sufficient for full firmware image + OTA update partition in resource-constrained edge devices |
| Interface | SPI Multi-I/O with Quad/DDR Quad support - enables 80 MBps read throughput, reducing boot time vs standard SPI |
| Voltage | 1.7 V to 2.0 V - compatible with low-power 1.8 V system rails and reduces active current vs 3.3 V flash |
| Endurance | 100,000 program-erase cycles - supports frequent field firmware updates in industrial gateways |
| Data retention | 20 years at +85°C - ensures long-term reliability in sealed automotive ECUs without refresh |
| Temperature grade | AEC-Q100 Grade 2 (–40°C to +105°C) - qualified for under-hood and powertrain control applications |
| Erase granularity | Hybrid: eight 4-KB + one 224-KB sectors; Uniform: 256-KB blocks - balances small-update flexibility with large-image efficiency |
Pinout & Package
Package: BGA-24, 6 mm × 8 mm, FAB024 footprint (5 × 5 ball array), Pb-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for SPI command decoding; supports daisy-chain or independent device selection |
| SCK | Serial Clock | Input clock for SDR (up to 133 MHz) or DDR (up to 80 MHz); phase/polarity configurable per mode 0/3 |
| IO0 | Serial Input / Data I/O 0 | Primary data line for standard SPI; becomes bidirectional I/O0 in Dual/Quad modes |
| IO1 | Serial Output / Data I/O 1 | Primary output in standard SPI; bidirectional I/O1 in Dual/Quad; enables 2-bit or 4-bit parallel transfer |
| IO2 | Write Protect / Data I/O 2 | Hardware WP# input or I/O2 in Quad mode; allows sector-level write lock independent of software commands |
| IO3 / RESET# | Reset Input / Data I/O 3 | Active-low hardware reset or I/O3 in Quad mode; enables full 4-line I/O or safe recovery from lockup |
| VCC | Power Supply | 1.7–2.0 V core supply; decoupling required within 5 mm for stable DDR timing margins |
| VSS | Ground | Signal and power return; separate VSS balls in BGA ensure low-impedance return path for high-speed I/O |
Key Features
| Feature | Design Value |
|---|---|
| Hardware ECC | On-the-fly single-bit error correction with no CPU overhead or latency penalty during read |
| Program/Erase suspend | Allows background erase to pause while servicing urgent program requests - critical for real-time firmware updates |
| Advanced Sector Protection (ASP) | Password-protected per-sector read/write lock enforced by on-die logic - eliminates need for external secure boot controller |
| SFDP v1.6 support | Self-describing parameter table enables automatic driver initialization without hard-coded timing constants |
| XIP Continuous Read Mode | Enables direct execution from flash without copying to RAM - reduces SRAM footprint in cost-sensitive microcontrollers |
Applications
| Automotive ADAS Domain Controller | Industrial PLC Firmware Storage |
|---|---|
Use Scenario: Storing boot loader, safety-critical ASW, and calibration data in radar ECU with ISO 26262 ASIL-B requirements. IC Role / Device Role / Timing Role: Primary nonvolatile firmware storage with AEC-Q100 Grade 2 qualification and 20-year data retention at 105°C. Use Value: Hardware ECC and ASP prevent unauthorized firmware modification and silent bit corruption in harsh thermal environments. | Use Scenario: Holding runtime firmware, configuration tables, and HMI assets in modular PLC backplane with hot-swap capability. IC Role / Device Role / Timing Role: High-reliability code storage enabling deterministic boot within 100 ms via Quad I/O XIP mode. Use Value: 80 MBps DDR Quad read speed and suspend/resume erase reduce firmware update downtime during maintenance windows. |
| 5G Small Cell Baseband Unit | Medical Imaging Edge Processor |
Use Scenario: Storing FPGA bitstreams and DSP firmware in compact 5G NR remote radio head with strict power budget. IC Role / Device Role / Timing Role: Low-voltage (1.8 V), low-standby-current (25 µA) flash supporting rapid reconfiguration between frequency bands. Use Value: Deep power-down mode and 65-nm process minimize idle power while maintaining fast wake-up from sleep states. | Use Scenario: Securing DICOM image processing firmware and regulatory compliance logs in portable ultrasound device. IC Role / Device Role / Timing Role: Trusted firmware vault with OTP array and password-protected ASP for HIPAA/FDA audit traceability. Use Value: 1024-byte OTP stores cryptographic keys and device-specific certificates immutable across lifecycle. |
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 S25FS256TAFMFI001 | Same density and package, but uses legacy 45-nm process; lacks DDR Quad I/O and SFDP v1.6 | Lower max read throughput (66 MBps vs 80 MBps); no built-in DDR timing auto-calibration | Select when legacy driver compatibility outweighs DDR performance gain |
| Winbond W25Q256JWSIQ | 256 Mb, 1.8 V, QPI/Quad mode; no DDR support; 100K cycles but only 10-year retention at 85°C | Missing AEC-Q100 qualification and ASP; requires external ECC for safety-critical use | Select for cost-sensitive consumer IoT where automotive/industrial qualification is unnecessary |
Compared with S25FS256TAFMFI001 and W25Q256JWSIQ, the S25FS256SAGMFB001 delivers higher DDR throughput, longer data retention, and integrated ASP-making it optimal for AEC-Q100 Grade 2 systems where firmware integrity and update agility are design-critical.
Availability
S25FS256SAGMFB001 is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, industrial PLCs, and 5G small cell baseband units requiring stable component supply, long-lifecycle assurance, and AEC-Q100-compliant sourcing.
Supply support for S25FS256SAGMFB001 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 leader specializing in power management, sensor, and memory solutions for automotive, industrial, and communications markets.
The FS-S Flash product line targets high-integrity embedded systems needing fast, secure, and long-life nonvolatile storage-specifically engineered for AEC-Q100-qualified automotive ECUs and industrial control firmware.
FAQ
What is the maximum clock frequency supported in DDR Quad I/O mode?
The S25FS256SAGMFB001 supports DDR Quad I/O operation at up to 80 MHz clock frequency, delivering 80 MBps effective read bandwidth. This is validated across the full industrial-plus temperature range (–40°C to +105°C) and requires proper PCB layout with matched trace lengths and controlled impedance for all four I/O lines.
Does this part include hardware error correction, and how is it implemented?
Yes, the device includes on-die hardware ECC that automatically detects and corrects single-bit errors during every read operation. ECC is transparent to the host controller-no software intervention or additional latency is required-and operates independently of the SPI command protocol or memory access mode.
Can the OTP array be used for storing cryptographic keys, and is it permanently locked?
The 1024-byte OTP array supports permanent programming of cryptographic keys, device IDs, or calibration data. Once programmed, individual bytes cannot be erased or rewritten. The array is protected by hardware fuse logic and accessible only after issuing the proper unlock sequence-preventing accidental or malicious overwrite.
Is the BGA package (FAB024) compatible with standard reflow profiles for lead-free assembly?
Yes, the FAB024 24-ball BGA package is qualified for standard IPC/JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260°C. The package uses NiPdAu surface finish and meets moisture sensitivity level (MSL) 3 requirements when stored per JEDEC guidelines.
S25FS256SAGMFB001 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FS-S
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- 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:
- 133 MHz
- Write Cycle Time - Word, Page:
- -
- Access Time:
- -
- Voltage - Supply:
- 1.7V ~ 2V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
S25FS256SAGMFB001 FAQ
1.How can I place an order for S25FS256SAGMFB001 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FS256SAGMFB001 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 S25FS256SAGMFB001 reliable?
The price and inventory of S25FS256SAGMFB001 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FS256SAGMFB001 is usually 5 days.
3.What payment methods are accepted for S25FS256SAGMFB001?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FS256SAGMFB001 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FS256SAGMFB001?
S25FS256SAGMFB001 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FS256SAGMFB001 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 S25FS256SAGMFB001?
For technical support, including S25FS256SAGMFB001 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FS256SAGMFB001 requirements.
6.How does Aetrix verify that S25FS256SAGMFB001 is sourced from the original manufacturer or authorized distributors?
All S25FS256SAGMFB001 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 S25FS256SAGMFB001 meets industry standards.
7.What is the process for return or replacement of S25FS256SAGMFB001?
All S25FS256SAGMFB001 units undergo pre-shipment inspection (PSI). If there is an issue with S25FS256SAGMFB001, 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 S25FS256SAGMFB001 part is unused and in its original packaging.
Return procedure for S25FS256SAGMFB001:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FS256SAGMFB001 Tags
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