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

Cypress Semiconductor Corp S25FS128SDSMFI1D0

Name: S25FS128SDSMFI1D0
Brand: Cypress Semiconductor Corp
SKU: S25FS128SDSMFI1D0
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: S25FS128SDSMFI1D0

Manufacturer:: Cypress Semiconductor Corp

Category:: Memory

Package:: 8-SOIC (0.209", 5.30mm Width)

Datasheet:: S25FS128SDSMFI1D0.pdf

Description:: IC FLASH 128MBIT SPI/QUAD 8SOIC

Quantity:: RFQ Add To RFQ list

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Product details

Overview

S25FS128SDSMFI1D0 from Infineon is a 128 Mbit (16 MB) serial NOR flash memory with SPI Multi-I/O interface, 1.8 V supply, industrial temperature grade (–40°C to +85°C), and 8-pin WSON 6 × 5 mm package. It supports Quad I/O, DDR Quad I/O read up to 80 MBps, 256-byte/512-byte page programming, hardware ECC, and hybrid/uniform sector erase options. Used in boot code storage for microcontrollers in industrial edge controllers.

For engineers reviewing the S25FS128SDSMFI1D0 datasheet, S25FS128SDSMFI1D0 pinout, S25FS128SDSMFI1D0 application, or S25FS128SDSMFI1D0 equivalent, key selection criteria include SPI-MIO timing compliance, SFDP/CFI configuration support, OTP array size (1024 bytes), erase endurance (100,000 cycles), and AEC-Q100 grade compatibility for automotive-adjacent designs.

Technical Context

This device implements Infineon's Eclipse architecture with 65-nm MIRRORBIT™ technology, enabling high-density NOR flash with deterministic read latency and XIP-capable burst wrap mode. It supports both standard SPI (modes 0/3) and enhanced Multi-I/O protocols including QPI and DDR Quad I/O, with configurable 24-/32-bit addressing.

The embedded algorithm engine handles automatic ECC (single-bit correction), program/erase suspend-resume, and advanced sector protection via boot code or password. Sector organization includes eight 4-KB + one 32-KB physical sectors at top/bottom, plus uniform 64-KB blocks - enabling software compatibility across Infineon's FS-S and legacy FL-S families.

Key Specifications

Parameter	Value and Actual Design Meaning
Density	128 Mbit (16 MB) - sufficient for full MCU boot image + firmware + configuration data in space-constrained industrial controllers.
Interface	SPI Multi-I/O with Quad/DDR Quad I/O - enables 80 MBps read throughput, reducing boot time vs. standard SPI.
Voltage	1.7 V to 2.0 V - matches low-voltage I/O domains of modern ARM Cortex-M7/M33 and RISC-V SoCs.
Erase Endurance	100,000 program-erase cycles - supports field firmware updates over 10+ years in remote monitoring devices.
Data Retention	20 years minimum at +85°C - ensures long-term reliability in uncooled industrial enclosures.
OTP Size	1024 bytes - stores cryptographic keys, calibration data, or unique device identifiers with permanent write-once security.
Temperature Grade	Industrial (–40°C to +85°C) - qualified for deployment in factory automation PLCs and motor drives without derating.
Package	WSON 6 × 5 mm, 8-pin - surface-mount footprint with thermal pad for improved power dissipation in dense PCB layouts.

Pinout & Package

8-pin WSON (6 mm × 5 mm, 0.5 mm pitch) with exposed thermal pad. Pin 1 marked by dot; pinout conforms to JEDEC MO-252.

Pin/Terminal	Circuit Role	Design Meaning
1 (CS#)	Chip Select	Active-low enable for command/address/data transfer; supports multi-device daisy-chain or parallel configurations.
2 (DO/IO1)	Serial Output / I/O Line 1	Output during standard reads; bidirectional during Dual/Quad I/O modes; requires pull-up for open-drain compatibility.
3 (WP#/IO2)	Write Protect / I/O Line 2	Hardware lock for status register and sector protection; functions as IO2 in Quad I/O mode when WP# disabled.
4 (VSS)	Ground	Signal and power return path; connects to thermal pad for thermal management and noise reduction.
5 (VCC)	Supply Voltage	1.8 V core and I/O supply; decoupling capacitor required within 3 mm for stable DDR timing margins.
6 (SI/IO0)	Serial Input / I/O Line 0	Command/address input in standard mode; bidirectional in Multi-I/O; supports command queuing in QPI mode.
7 (SCK)	Serial Clock	Input-only clock with phase/polarity modes 0 and 3; 133 MHz max frequency enables fast read throughput.
8 (HOLD#/IO3)	Hold / I/O Line 3	Pauses ongoing transaction without deselecting chip; acts as IO3 in Quad I/O; supports RESET# function if configured.

Key Features

Feature	Design Value
Hardware ECC Engine	On-the-fly single-bit error correction with no CPU overhead - maintains data integrity during power-loss events in critical boot sequences.
Program/Erase Suspend	Interrupt active programming or erasing to service high-priority reads - essential for real-time systems requiring deterministic latency.
Advanced Sector Protection (ASP)	Password- or boot-code-controlled per-sector locking - prevents unauthorized firmware modification in certified industrial safety systems.
SFDP & CFI Support	Standardized parameter tables readable at power-up - enables automatic driver initialization without hard-coded timing or geometry assumptions.
Hybrid Sector Architecture	Mixed 4-KB/32-KB sectors at address boundaries - allows fine-grained update of boot code while preserving large firmware partitions.

Applications

Industrial PLC Boot Storage

Automotive ADAS Camera Module

Use Scenario: Stores bootloader, RTOS kernel, and safety-critical control logic in programmable logic controllers deployed in harsh factory environments.

IC Role / Device Role / Timing Role: Primary nonvolatile boot memory with XIP-capable continuous read mode and deterministic 133 MHz Fast Read access.

Use Value: 20-year data retention and 100K-cycle endurance ensure firmware integrity across extended maintenance intervals without recalibration.

Use Scenario: Holds camera ISP firmware and calibration parameters in rear-view and surround-view modules operating at –40°C to +105°C.

IC Role / Device Role / Timing Role: Secondary flash for firmware overlay and runtime parameter storage, interfacing with TI TDA4VM via Quad SPI at 80 MBps DDR rate.

Use Value: OTP array secures sensor calibration data; ASP prevents tampering with image processing algorithms during vehicle service.

Medical Imaging Edge Node

Smart Grid Communication Gateway

Use Scenario: Stores FPGA configuration bitstream and diagnostic firmware in portable ultrasound and ECG edge nodes with strict EMC requirements.

IC Role / Device Role / Timing Role: Configuration memory with low EMI Quad I/O interface and deep power-down current (6 µA) for battery-backed operation.

Use Value: WSON 6×5 mm package minimizes board area; 0.025 mA standby current extends battery life between scheduled firmware checks.

Use Scenario: Hosts secure boot loader and encrypted communication stack in DIN-rail-mounted grid gateways managing Modbus-TCP and DNP3 traffic.

IC Role / Device Role / Timing Role: Trusted execution root-of-trust storage with hardware write protection and 1024-byte OTP for asymmetric key storage.

Use Value: Block protection bits prevent accidental overwrite during OTA updates; SFDP enables auto-negotiation of timing parameters across voltage/temp variations.

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 S25FL128SAGMFI100	Same pinout, identical 128 Mbit density and WSON 6×5 mm package; lacks DDR Quad I/O and SFDP v1.6 support.	Compatible for legacy designs using only SDR Quad I/O; not suitable for new designs requiring DDR timing or dynamic configuration discovery.	Select only if migrating from existing S25FL128S-based platforms with no DDR or SFDP dependency.
Winbond W25Q128JVSIM	1.8 V, 128 Mbit, 8-pin WSON; supports Quad I/O but no DDR mode; 100K endurance same, but data retention rated at 10 years (vs. 20).	Lower cost option for non-safety-critical consumer IoT gateways where 10-year retention suffices and DDR bandwidth is unnecessary.	Choose when budget constraints outweigh need for DDR throughput and extended data retention in industrial deployments.

Compared with S25FL128SAGMFI100 and W25Q128JVSIM, the S25FS128SDSMFI1D0 delivers higher read bandwidth (80 MBps DDR vs. 40 MBps SDR), longer data retention (20 vs. 10 years), and standardized SFDP v1.6 - making it optimal for next-generation industrial and automotive-qualified systems requiring future-proof configurability and longevity.

Availability

S25FS128SDSMFI1D0 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS modules, medical edge nodes, and smart grid gateways requiring stable component supply, long-life qualification, and traceable sourcing.

Supply support for S25FS128SDSMFI1D0 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 renewable energy markets.

The FS-S Flash family targets high-reliability embedded systems needing deterministic boot performance, secure firmware storage, and seamless migration from legacy S25FL devices - with emphasis on AEC-Q100 qualification and extended temperature operation.

FAQ

Does S25FS128SDSMFI1D0 support Quad SPI mode with continuous read and wrap burst?

Yes. The device supports Quad I/O continuous read with burst wrap capability, enabling execution-in-place (XIP) from flash memory without external RAM buffering. This mode uses the 0xEB command and operates at up to 133 MHz clock frequency, delivering 66 MBps throughput. Burst wrap length is configurable via status register, and the feature is validated across the full industrial temperature range.

What is the function of the HOLD#/IO3 pin in standard SPI versus Quad I/O mode?

In standard SPI mode, pin 8 (HOLD#) suspends ongoing transactions without deselecting the device, allowing other peripherals to use the bus. In Quad I/O mode, it functions as IO3 for data transfer. When RESET# functionality is enabled via configuration register, the same pin can also serve as hardware reset input - but this requires disabling HOLD# and IO3 roles through register programming.

How does the hybrid sector erase architecture benefit firmware update design?

The hybrid layout - eight 4-KB sectors plus one 32-KB sector at either end of the address space - enables atomic updates of small boot code regions without erasing larger firmware partitions. This reduces update time and wear on main application sectors. Combined with program/erase suspend, it allows background updates while maintaining real-time system responsiveness during field upgrades.

Is the 1024-byte OTP array one-time programmable at the byte level or only in blocks?

The OTP array is programmable at the byte level, but once any bit is set to '0', it cannot be changed back to '1' - making each byte effectively write-once. Programming is performed via dedicated commands (0x42/0x4B) and requires prior write enable. No erase operation is supported for OTP; verification must occur post-programming using read commands, as errors are irreversible.

S25FS128SDSMFI1D0 Specifications

Product attributes: Attribute value

Manufacturer:: Cypress Semiconductor Corp

Series:: FS-S

Package/Case:: 8-SOIC (0.209", 5.30mm Width)

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:: 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-SOIC

S25FS128SDSMFI1D0 FAQ

1.How can I place an order for S25FS128SDSMFI1D0 through Aetrix?

Please submit a Request for Quotation (RFQ) for S25FS128SDSMFI1D0 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 S25FS128SDSMFI1D0 reliable?

The price and inventory of S25FS128SDSMFI1D0 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FS128SDSMFI1D0 is usually 5 days.

3.What payment methods are accepted for S25FS128SDSMFI1D0?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FS128SDSMFI1D0 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for S25FS128SDSMFI1D0?

S25FS128SDSMFI1D0 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your S25FS128SDSMFI1D0 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 S25FS128SDSMFI1D0?

For technical support, including S25FS128SDSMFI1D0 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FS128SDSMFI1D0 requirements.

6.How does Aetrix verify that S25FS128SDSMFI1D0 is sourced from the original manufacturer or authorized distributors?

All S25FS128SDSMFI1D0 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 S25FS128SDSMFI1D0 meets industry standards.

7.What is the process for return or replacement of S25FS128SDSMFI1D0?

All S25FS128SDSMFI1D0 units undergo pre-shipment inspection (PSI). If there is an issue with S25FS128SDSMFI1D0, 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 S25FS128SDSMFI1D0 part is unused and in its original packaging.

Return procedure for S25FS128SDSMFI1D0:

1.Submit a request within 90 days.

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

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