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Infineon Technologies S25FS256SDSBHI203
- Part No.:
- S25FS256SDSBHI203
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
S25FS256SDSBHI203.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 24BGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,712
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Product details
Overview
S25FS256SDSBHI203 from Infineon is a 256 Mb (32 MB) serial NOR flash memory IC with SPI Multi-I/O interface, 1.8 V supply, industrial temperature grade (–40°C to +85°C), and WSON 6 × 8 mm package. It supports Quad I/O, DDR Quad I/O read up to 80 MBps, 256-byte/512-byte page programming, and hardware ECC for single-bit error correction. Used in boot code storage for microcontrollers in industrial control systems.
For engineers reviewing the S25FS256SDSBHI203 datasheet, S25FS256SDSBHI203 pinout, S25FS256SDSBHI203 application, or S25FS256SDSBHI203 equivalent, key selection criteria include hybrid/uniform sector erase options, SFDP/CFI configuration support, OTP array size, AEC-Q100 grade compatibility, and DDR vs. SDR timing margins.
Technical Context
This device implements Infineon's 65-nm MIRRORBIT™ Eclipse architecture with dual-plane memory organization and configurable addressing (24-/32-bit). It executes embedded erase and program algorithms with suspend/resume capability and supports both legacy SPI command subsets and extended Multi-I/O protocols compatible with S25FL-P/S families.
Security is enforced via status register-based block protection, advanced sector protection (ASP) with password-controlled read access, and a dedicated 1024-byte one-time programmable (OTP) array. The device uses internal hardware ECC for real-time single-bit error correction during read operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 256 Mbit (32 MB) - supports full firmware image storage for mid-range MCUs |
| Supply Voltage | 1.7 V to 2.0 V - optimized for low-power 1.8 V system rails with tight regulation tolerance |
| Read Speed | DDR Quad I/O at 80 MHz → 80 MBps - enables XIP execution with sub-100 ns effective latency per 32-byte burst |
| Erase Endurance | 100,000 program-erase cycles - suitable for field-upgradable firmware requiring frequent reprogramming |
| Data Retention | 20 years minimum at +85°C - ensures long-term reliability in unattended industrial deployments |
| Temperature Grade | Industrial (–40°C to +85°C) - validated for operation in factory automation and motor drive environments |
| Package | WSON 6 × 8 mm (WNH008) - surface-mount, moisture-sensitive level 3, no lead finish |
Pinout & Package
Package: WSON 6 × 8 mm (WNH008), 8-pin, exposed pad, RoHS-compliant, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CS#) | Chip Select | Active-low enable for SPI command latching; must be held low for entire command sequence |
| 2 (DO/IO1) | Data Output / I/O Line 1 | Serial output during standard read; bidirectional in Dual/Quad I/O modes |
| 3 (WP#/IO2) | Write Protect / I/O Line 2 | Hardware lock for top/bottom sectors when WP# = low; functions as IO2 in Quad mode |
| 4 (VSS) | Ground | Signal and power reference plane; connects to exposed thermal pad |
| 5 (VCC) | Power Supply | 1.8 V core and I/O supply; requires local 1 µF ceramic decoupling |
| 6 (SI/IO0) | Data Input / I/O Line 0 | Serial input for commands/address/data; bidirectional in Dual/Quad I/O modes |
| 7 (SCK) | Serial Clock | Input clock for SDR (modes 0/3) and DDR (mode 3 only); max 133 MHz SDR, 80 MHz DDR |
| 8 (RESET#/IO3) | Reset / I/O Line 3 | Hardware reset initiation; functions as IO3 in Quad mode; pulled high internally |
Key Features
| Feature | Design Value |
|---|---|
| DDR Quad I/O Read | 80 MBps throughput with 80 MHz DDR clock - reduces boot time by >40% vs. standard Quad I/O at same frequency |
| Hybrid Sector Architecture | Eight 4-KB + one 32-KB sectors at top/bottom + uniform 64-KB blocks - enables fine-grained firmware partitioning and secure bootloader isolation |
| Hardware ECC | On-the-fly single-bit error correction with no software overhead - eliminates need for external error-handling logic in safety-critical applications |
| OTP Array | 1024-byte one-time programmable space - stores cryptographic keys, calibration data, or device-specific identifiers with permanent write-lock |
| Advanced Sector Protection | Password-controlled read access and individual sector locking - enforces secure firmware update policies without external security ICs |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing firmware and configuration data for programmable logic controllers operating in factory-floor environments with EMI and thermal cycling. IC Role / Device Role / Timing Role: Primary non-volatile boot memory mapped into MCU address space for XIP execution during cold start. Use Value: 20-year data retention and 100K erase cycles ensure firmware integrity over full equipment lifecycle without field replacement. | Use Scenario: Holding boot code and sensor calibration tables for radar/EPS ECUs requiring AEC-Q100 compliance and fast startup. IC Role / Device Role / Timing Role: SPI-connected NOR flash providing deterministic <100 ms boot time via DDR Quad I/O XIP mode. Use Value: Industrial Plus temperature rating (–40°C to +105°C) and hardware ECC meet ASIL-B functional safety requirements for sensor fusion modules. |
| Medical Imaging System Configuration | Network Edge Router Boot Image |
Use Scenario: Storing FPGA bitstreams and calibration profiles in portable ultrasound devices subject to regulatory audit and long shelf life. IC Role / Device Role / Timing Role: Secure configuration store with OTP-locked calibration constants and ASP-protected update partitions. Use Value: Password-controlled read access prevents unauthorized extraction of proprietary imaging algorithms during service or repair. | Use Scenario: Hosting primary and fallback boot images for carrier-grade routers requiring zero-downtime firmware upgrades. IC Role / Device Role / Timing Role: Dual-bank flash supporting atomic swap between active and staging firmware images. Use Value: Erase suspend/resume and program suspend/resume allow background updates without interrupting packet forwarding. |
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 S25FS256SDSBHI203 (same part) | No difference - identical Infineon-branded successor to Cypress S25FS256S | Same footprint, timing, and command set - drop-in replacement post-acquisition | Select for continuity where legacy Cypress design documentation applies |
| Winbond W25Q256JWSIQ | 3.3 V supply, no DDR mode, 133 MHz Quad I/O only (66 MBps), no hardware ECC | Lacks ECC and DDR - requires software error handling and limits XIP performance in bandwidth-constrained designs | Choose only if system operates at 3.3 V and ECC is implemented externally or not required |
Compared with Winbond W25Q256JWSIQ, S25FS256SDSBHI203 delivers 21% higher read bandwidth via DDR mode and eliminates software ECC overhead, while its 1.8 V operation reduces system power by ~35% versus 3.3 V alternatives in battery-backed edge nodes.
Availability
S25FS256SDSBHI203 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS ECUs, medical imaging subsystems, and network edge routers requiring stable component supply across multi-year production cycles.
Supply support for S25FS256SDSBHI203 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, connectivity, and memory solutions for industrial, automotive, and IoT markets.
The FS-S Flash family targets high-reliability embedded systems needing fast, secure, and long-life non-volatile storage - particularly where XIP boot performance, ECC, and AEC-Q100 compliance are mandatory.
FAQ
What is the maximum clock frequency supported in DDR mode?
The S25FS256SDSBHI203 supports DDR Quad I/O operation up to 80 MHz, delivering 80 MBps effective read bandwidth. This requires precise PCB layout with matched trace lengths and controlled impedance (50 Ω ±10%) on all I/O lines to maintain setup/hold timing margins under jitter and skew conditions.
Does this device support 32-bit addressing for >16 MB capacity?
Yes - the device implements extended 32-bit addressing mode, enabling full access to the entire 256 Mb address space without bank switching. This is configured via the Configuration Register (CR2[7]), and is required to access memory beyond the first 16 MB in uniform sector mode.
How is the 1024-byte OTP array protected from accidental overwrite?
The OTP array is permanently locked after programming via the Status Register OTP Lock Bit (SR[9]). Once set, no further writes to the OTP region are possible - even with Write Enable instruction. Programming requires issuing the Program OTP command (0x42) followed by two specific unlock sequences, preventing unintended modification.
Can the device operate in standard SPI mode without using Multi-I/O features?
Yes - the device fully supports legacy SPI modes 0 and 3 with single I/O (SI/SO) operation, including Normal and Fast Read commands. All Multi-I/O features (Dual/Quad/DDR) are optional extensions; basic functionality remains accessible using only CS#, SCK, SI, SO, and WP# pins without reconfiguring the device.
S25FS256SDSBHI203 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:
- 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:
- 24-BGA (8x6)
S25FS256SDSBHI203 FAQ
1.How can I place an order for S25FS256SDSBHI203 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FS256SDSBHI203 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 S25FS256SDSBHI203 reliable?
The price and inventory of S25FS256SDSBHI203 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FS256SDSBHI203 is usually 5 days.
3.What payment methods are accepted for S25FS256SDSBHI203?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FS256SDSBHI203 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FS256SDSBHI203?
S25FS256SDSBHI203 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FS256SDSBHI203 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 S25FS256SDSBHI203?
For technical support, including S25FS256SDSBHI203 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FS256SDSBHI203 requirements.
6.How does Aetrix verify that S25FS256SDSBHI203 is sourced from the original manufacturer or authorized distributors?
All S25FS256SDSBHI203 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 S25FS256SDSBHI203 meets industry standards.
7.What is the process for return or replacement of S25FS256SDSBHI203?
All S25FS256SDSBHI203 units undergo pre-shipment inspection (PSI). If there is an issue with S25FS256SDSBHI203, 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 S25FS256SDSBHI203 part is unused and in its original packaging.
Return procedure for S25FS256SDSBHI203:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FS256SDSBHI203 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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