Infineon Technologies S25FS128SAGBHV203
- Part No.:
- S25FS128SAGBHV203
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
S25FS128SAGBHV203.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 24BGA
- Quantity:
- Payment:

- Shipping:

Inventory:4,107
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Product details
Overview
S25FS128SAGBHV203 from Infineon is a 128 Mb (16 MB) serial NOR flash memory 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 read up to 80 MBps, 256/512-byte page programming, hardware ECC, and hybrid/uniform sector erase options. Used in boot code storage for microcontrollers in industrial control systems.
For engineers reviewing the S25FS128SAGBHV203 datasheet, S25FS128SAGBHV203 pinout, S25FS128SAGBHV203 application, or S25FS128SAGBHV203 equivalent, key selection criteria include 1.8 V operation, AEC-Q100 Grade 3 qualification, SFDP/CFI support, OTP array size, and hybrid sector architecture compatibility with legacy S25FL-S designs.
Technical Context
This device implements Infineon's Eclipse architecture with 65-nm MIRRORBIT™ technology, enabling high-density NOR flash with deterministic latency for XIP execution. It supports both standard SPI (modes 0/3) and enhanced protocols including QPI and DDR Quad I/O, with configurable 24-/32-bit addressing.
The flash integrates dual-sector erase architectures: hybrid (eight 4-KB + one 32-KB sectors plus 64-KB main sectors) and uniform (64-KB or 256-KB blocks), plus programmable block protection via status register bits and advanced sector protection with password-controlled access to OTP and protected sectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Density | 128 Mbits (16 MB) - sufficient for full MCU boot image + firmware + configuration data in space-constrained embedded systems |
| Supply Voltage | 1.7 V to 2.0 V - enables direct interfacing with 1.8 V I/O domains without level shifting |
| Max Read Rate | 80 MBps (DDR Quad I/O @ 80 MHz) - supports real-time code execution from flash in high-performance applications |
| Erase Endurance | 100,000 program-erase cycles - ensures long-term reliability in field-upgradable systems |
| Data Retention | 20 years minimum - guarantees nonvolatile storage integrity over product lifecycle without refresh |
| Temperature Range | –40°C to +85°C (Industrial Grade) - validated for continuous operation in factory automation and motor drives |
| OTP Size | 1024 bytes - provides secure storage for cryptographic keys, calibration data, or unique device identifiers |
Pinout & Package
Package: 8-pin WSON (6 mm × 5 mm, WND008 footprint), Pb-free, moisture sensitivity level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for SPI command decoding; supports multi-device daisy-chaining with proper timing margins |
| SO / IO1 | Serial Output / I/O Line 1 | Primary output during standard reads; bidirectional in Dual/Quad I/O modes for data multiplexing |
| WP# / IO2 | Write Protect / I/O Line 2 | Hardware lock for top/bottom sector protection; repurposed as IO2 in Quad mode for address/data expansion |
| IO3 / RESET# | I/O Line 3 / Reset Input | Enables hardware reset of internal state machine; functions as IO3 in Quad mode for full 4-line data bus |
| SI / IO0 | Serial Input / I/O Line 0 | Command/address input in standard mode; bidirectional in Multi-I/O for parallelized transfers |
| SCK | Serial Clock | Edge-triggered clock up to 133 MHz (SDR) or 80 MHz (DDR); determines maximum throughput and timing closure margin |
| VCC | Power Supply | 1.8 V core and I/O supply; requires local 1 µF + 0.1 µF decoupling per datasheet layout guidelines |
| VSS | Ground | Signal reference plane; must be low-impedance connection to minimize switching noise on I/O lines |
Key Features
| Feature | Design Value |
|---|---|
| Hardware ECC | On-the-fly single-bit error correction with no software overhead, preserving system-level MTBF in noisy environments |
| Program/Erase Suspend | Allows background read operations during active programming or erasing, enabling responsive UI or real-time monitoring |
| Hybrid Sector Architecture | Combines small 4-KB sectors for fine-grained firmware updates with large 32-KB sectors for efficient bulk writes |
| Advanced Sector Protection (ASP) | Password-protected individual sector locking prevents unauthorized firmware modification or credential extraction |
| SFDP & CFI Support | Self-describing configuration enables automatic driver initialization and runtime parameter discovery without hard-coded constants |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing boot loader, safety-critical firmware, and configuration tables in programmable logic controllers deployed in factory floors. IC Role / Device Role / Timing Role: Primary nonvolatile boot memory accessed at power-on reset via SPI-XIP; delivers deterministic <100 µs latency for first instruction fetch. Use Value: 20-year data retention and 100K erase cycles ensure firmware integrity across 15+ year equipment lifecycles without field replacement. | Use Scenario: Holding boot code and sensor calibration data for radar processing units in Level 2+ ADAS systems. IC Role / Device Role / Timing Role: AEC-Q100 Grade 3 qualified SPI flash providing secure, fast-read access to verified boot images before SoC initialization. Use Value: OTP array stores asymmetric keys for secure boot verification; ASP prevents tampering with calibration parameters during vehicle service. |
| Medical Imaging Device Configuration | Network Edge Router Firmware |
Use Scenario: Storing DICOM protocol stacks, image processing algorithms, and regulatory-compliant audit logs in portable ultrasound systems. IC Role / Device Role / Timing Role: Dual-role memory: executes XIP code during imaging acquisition and logs timestamped diagnostics to dedicated 4-KB sectors. Use Value: Hybrid sector layout allows concurrent firmware update (in 64-KB blocks) and diagnostic logging (in 4-KB sectors) without interrupting real-time imaging. | Use Scenario: Hosting bootloader, Linux kernel, and feature modules in carrier-grade edge routers requiring zero-downtime firmware upgrades. IC Role / Device Role / Timing Role: High-reliability SPI flash supporting atomic sector swaps and CRC-verified boot image validation prior to execution. Use Value: 80 MBps DDR Quad I/O read rate reduces boot time by >40% vs. legacy 25 MHz SPI, accelerating service restoration after failover. |
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 S25FL128SAGMFI000 | Same die, identical pinout and command set; legacy marking without HV203 suffix | No functional difference; same industrial temp grade and 1.8 V operation | Select when sourcing from legacy inventory or distributors with older stock codes |
| Winbond W25Q128JVSIM | 3.3 V supply only; lacks DDR mode, OTP array, and ASP; 64-KB uniform sectors only | Not suitable for 1.8 V systems or security-sensitive applications requiring password-protected sectors | Consider only for cost-sensitive, non-automotive designs where voltage compatibility and security features are not required |
Compared with S25FS128SAGBHV203, the Cypress alternative offers identical functionality with legacy branding, while the Winbond part requires voltage translation and lacks hardware ECC, OTP, and advanced protection-making it unsuitable for safety-critical or long-lifecycle deployments.
Availability
S25FS128SAGBHV203 is available at Aetrix Electronics and suitable for industrial control systems, automotive ADAS modules, medical imaging devices, and network edge infrastructure requiring stable component supply and long-term lifecycle assurance.
Supply support for S25FS128SAGBHV203 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 FS-S Flash family targets high-reliability embedded systems needing deterministic boot performance, secure firmware storage, and extended product lifecycles-designed specifically for AEC-Q100 and industrial-grade applications.
FAQ
What is the purpose of the IO3/RESET# pin in S25FS128SAGBHV203?
The IO3/RESET# pin serves dual functions: as a hardware reset input to force the device into a known initial state, and as I/O Line 3 in Quad I/O mode to enable four-wire data transfers. Its reset function is asynchronous and does not require clocking; in Multi-I/O operation, it carries address or data bits during command execution, increasing throughput without additional pins.
Does S25FS128SAGBHV203 support execute-in-place (XIP) operation?
Yes, S25FS128SAGBHV203 supports continuous read mode for XIP execution, allowing microcontrollers to fetch instructions directly from flash without loading into RAM. This capability is enabled via the Continuous Read command and requires proper cache coherency handling in the host processor; timing parameters for XIP are specified in the datasheet's AC characteristics section under "Continuous Read" conditions.
How does the hybrid sector architecture benefit firmware update strategies?
The hybrid sector architecture combines eight 4-KB sectors and one 32-KB sector at either end of the address space, alongside 64-KB main sectors. This allows small, frequent updates (e.g., patching critical bugs in boot code stored in 4-KB sectors) while reserving larger sectors for infrequent, full-image upgrades-reducing wear on frequently modified regions and extending overall flash endurance beyond 100K cycles in mixed-use scenarios.
Is the OTP array reprogrammable after initial programming?
No, the 1024-byte OTP (One-Time Programmable) array is permanently programmed using high-voltage pulses and cannot be erased or rewritten. Once written, its contents-including cryptographic keys or device-specific calibration data-are immutable. Programming is performed via the dedicated OTP Program command and requires verification steps; partial programming is allowed, but no bit can be flipped back from '0' to '1' after commit.
S25FS128SAGBHV203 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:
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-BGA (8x6)
S25FS128SAGBHV203 FAQ
1.How can I place an order for S25FS128SAGBHV203 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FS128SAGBHV203 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 S25FS128SAGBHV203 reliable?
The price and inventory of S25FS128SAGBHV203 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FS128SAGBHV203 is usually 5 days.
3.What payment methods are accepted for S25FS128SAGBHV203?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FS128SAGBHV203 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FS128SAGBHV203?
S25FS128SAGBHV203 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FS128SAGBHV203 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 S25FS128SAGBHV203?
For technical support, including S25FS128SAGBHV203 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FS128SAGBHV203 requirements.
6.How does Aetrix verify that S25FS128SAGBHV203 is sourced from the original manufacturer or authorized distributors?
All S25FS128SAGBHV203 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 S25FS128SAGBHV203 meets industry standards.
7.What is the process for return or replacement of S25FS128SAGBHV203?
All S25FS128SAGBHV203 units undergo pre-shipment inspection (PSI). If there is an issue with S25FS128SAGBHV203, 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 S25FS128SAGBHV203 part is unused and in its original packaging.
Return procedure for S25FS128SAGBHV203:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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