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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Infineon Technologies S25FS128SAGBHM203

Name: S25FS128SAGBHM203
Brand: Infineon Technologies
SKU: S25FS128SAGBHM203
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S25FS128SAGBHM203

Manufacturer:: Infineon Technologies

Category:: Memory

Package:: 24-TBGA

Datasheet:: S25FS128SAGBHM203.pdf

Description:: IC FLASH 128MBIT SPI/QUAD 24BGA

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Product details

Overview

S25FS128SAGBHM203 from Infineon is a 128 Mb (16 MB) serial NOR flash memory with SPI Multi-I/O interface, operating at 1.8 V supply. 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 20-year data retention. Used in industrial microcontroller boot code storage where high reliability and fast XIP-capable reads are required.

For engineers reviewing the S25FS128SAGBHM203 datasheet, S25FS128SAGBHM203 pinout, S25FS128SAGBHM203 application, or S25FS128SAGBHM203 equivalent, key selection criteria include 1.8 V operation, hybrid/ uniform sector erase options, OTP array size, SFDP/CFI support, and AEC-Q100 Grade 2 qualification for extended temperature designs.

Technical Context

This device implements Infineon's Eclipse architecture with 65-nm MIRRORBIT™ technology, enabling simultaneous read-while-write via program/erase suspend-resume functionality. It supports both 24-bit and 32-bit addressing, and offers dual SPI clock polarity/phase modes (0 and 3) with configurable DDR enablement.

The flash integrates Serial Flash Discoverable Parameters (SFDP) v1.6 and Common Flash Interface (CFI), allowing runtime configuration discovery. Its security model includes hardware-controlled block protection, software/hardware write protection, and password-enabled Advanced Sector Protection (ASP) for individual sector lockdown.

Key Specifications

Parameter	Value and Actual Design Meaning
Density	128 Mbit (16 MB) - sufficient for full MCU firmware + parameter storage in space-constrained embedded systems
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 near-zero latency XIP execution for real-time applications
Erase Endurance	100,000 cycles - supports field-updatable firmware in industrial gateways requiring frequent OTA updates
Data Retention	20 years at +85°C - ensures long-term reliability in unattended infrastructure equipment
Temperature Grade	Industrial Plus (–40°C to +105°C) - validated for extended thermal operation in motor control and power electronics
Security Features	1024-byte OTP array + ASP + hardware/software block protection - meets secure boot root-of-trust requirements

Pinout & Package

Package: 8-pin WSON (6 mm × 5 mm, WND008), Pb-free, moisture sensitivity level 3 (MSL3).

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/O 1	Primary output during standard read; bidirectional in Dual/Quad I/O modes for data multiplexing
WP# / IO2	Write Protect / I/O 2	Hardware lock for status register and sector protection; repurposed as I/O line in Quad mode
IO3 / RESET#	I/O 3 / Reset Input	Enables hardware reset of internal state machine; functions as fourth I/O line in Quad mode
SI / IO0	Serial Input / I/O 0	Command/address/data input in standard mode; bidirectional in Multi-I/O configurations
SCK	Serial Clock	Edge-triggered timing reference for all SPI transactions; supports up to 133 MHz SDR or 80 MHz DDR
VCC	Power Supply	1.8 V core and I/O supply; decoupling required within 5 mm of pin per layout guidelines
VSS	Ground	Signal return path; must be connected to low-impedance PCB ground plane for noise immunity

Key Features

Feature	Design Value
Hardware ECC	On-the-fly single-bit error correction with no CPU overhead, preserving data integrity across 20-year lifespan
Program/Erase Suspend	Allows background read access during active programming or erasing-critical for real-time HMI and control loop continuity
Hybrid Sector Architecture	Flexible mix of 4 KB, 32 KB, and 64 KB physical sectors enables optimized firmware partitioning and OTA update efficiency
Advanced Sector Protection (ASP)	Password-protected per-sector lockdown prevents unauthorized firmware modification or cloning in certified devices
SFDP v1.6 Support	Self-describing configuration allows automatic driver initialization without hard-coded timing or command tables

Applications

Industrial PLC Firmware Storage

Automotive ADAS Boot Memory

Use Scenario: Storing bootloader, RTOS kernel, and safety-critical application code in programmable logic controllers deployed in factory automation.

IC Role / Device Role / Timing Role: Primary nonvolatile code storage with XIP-capable Quad I/O interface for deterministic startup and runtime execution.

Use Value: 20-year data retention and 100K erase cycles ensure firmware integrity over full equipment lifecycle without field replacement.

Use Scenario: Holding boot image and sensor calibration data for radar processing units in Level 2+ ADAS systems.

IC Role / Device Role / Timing Role: AEC-Q100 Grade 2 qualified boot memory interfacing directly with automotive-grade SoCs via SPI-MIO.

Use Value: Hardware ECC and ASP meet ISO 26262 ASIL-B functional safety requirements for fault-tolerant boot validation.

Medical Imaging Control Module

Smart Grid Communication Gateway

Use Scenario: Hosting FPGA configuration bitstreams and diagnostic firmware in portable ultrasound and MRI subsystems.

IC Role / Device Role / Timing Role: High-reliability SPI flash supporting burst-wrap reads and fast page programming for rapid reconfiguration.

Use Value: 1.8 V operation and low deep-power-down current (6 µA) extend battery life in mobile diagnostic tools.

Use Scenario: Storing protocol stacks (DLMS/COSEM, IEC 61850), encryption keys, and firmware updates in utility smart meters and concentrators.

IC Role / Device Role / Timing Role: Secure, field-upgradable memory with OTP and ASP protecting cryptographic assets and regulatory compliance data.

Use Value: 1024-byte OTP array stores immutable root keys; ASP enforces read/write restrictions aligned with NIST SP 800-193 guidelines.

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 S25FL128SAGMFI000	Same die, legacy Cypress branding; identical electrical specs, timing, and pinout	No functional difference; same AEC-Q100 Grade 2 qualification and Industrial Plus temp range	Select when sourcing from legacy inventory or distributor stock with Cypress labeling
Winbond W25Q128JVSIM	1.8 V Quad SPI flash; no DDR mode, lower max read speed (40 MBps), no integrated ASP or SFDP v1.6	Lacks password-based sector protection and runtime configuration discovery-requires fixed driver integration	Choose only if DDR and ASP are not required and cost sensitivity outweighs security and flexibility needs

Compared with S25FL128SAGMFI000, this part offers identical performance but benefits from Infineon's unified support and long-term roadmap alignment; versus W25Q128JVSIM, it delivers superior security, configurability, and throughput at higher design assurance cost.

Availability

S25FS128SAGBHM203 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging control modules requiring stable component supply across extended product lifecycles.

Supply support for S25FS128SAGBHM203 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 secure, fast, and long-life nonvolatile storage-designed specifically for boot code, firmware, and configuration data in mission-critical applications.

FAQ

What is the maximum clock frequency supported in DDR Quad I/O mode?

The S25FS128SAGBHM203 supports DDR Quad I/O operation up to 80 MHz, delivering 80 MBps effective read bandwidth. This is specified under AC characteristics section 6.5 of the datasheet, with strict setup/hold timing requirements for SI/SO/IO2/IO3 relative to SCK edges. Layout must minimize skew between all four I/O lines to maintain signal integrity at this rate.

Does this device support 32-bit addressing out of the box?

Yes-the device supports both 24-bit and 32-bit addressing modes via configuration register bit CR3[0]. When enabled, 32-bit addressing unlocks the full 128 Mb address space without bank switching, simplifying firmware drivers and enabling seamless migration from smaller density parts. Default power-on state is 24-bit mode for backward compatibility.

How is the 1024-byte OTP array accessed and protected?

The OTP array resides at address 0x00000000 and is accessed using dedicated One-Time Program commands (0x4B, 0x42). Once programmed, bits cannot be reset. Protection is enforced by Status Register Lock Bit (SRP) and hardware WP# assertion. Programming requires Write Enable (0x06) followed by OTP Program (0x42) with valid address and data; verification is performed automatically.

Can this flash be used in a daisy-chained SPI configuration?

No-daisy chaining is not supported. The device uses standard SPI with dedicated CS# per device. While multiple S25FS128SAGBHM203 units can share SCK, SI, SO, WP#, and RESET# lines, each requires its own independent CS# signal. Shared bus arbitration must be handled externally by the host controller; no built-in daisy-chain command forwarding or address routing is implemented.

S25FS128SAGBHM203 Specifications

Product attributes: Attribute value

Manufacturer:: Infineon Technologies

Series:: FS-S

Package/Case:: 24-TBGA

Packaging:: Tray

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 ~ 125°C (TA)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount

Supplier Device Package:: 24-BGA (8x6)

S25FS128SAGBHM203 FAQ

1.How can I place an order for S25FS128SAGBHM203 through Aetrix?

Please submit a Request for Quotation (RFQ) for S25FS128SAGBHM203 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 S25FS128SAGBHM203 reliable?

The price and inventory of S25FS128SAGBHM203 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FS128SAGBHM203 is usually 5 days.

3.What payment methods are accepted for S25FS128SAGBHM203?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FS128SAGBHM203 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S25FS128SAGBHM203?

S25FS128SAGBHM203 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S25FS128SAGBHM203 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 S25FS128SAGBHM203?

For technical support, including S25FS128SAGBHM203 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FS128SAGBHM203 requirements.

6.How does Aetrix verify that S25FS128SAGBHM203 is sourced from the original manufacturer or authorized distributors?

All S25FS128SAGBHM203 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 S25FS128SAGBHM203 meets industry standards.

7.What is the process for return or replacement of S25FS128SAGBHM203?

All S25FS128SAGBHM203 units undergo pre-shipment inspection (PSI). If there is an issue with S25FS128SAGBHM203, 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 S25FS128SAGBHM203 part is unused and in its original packaging.

Return procedure for S25FS128SAGBHM203:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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