Infineon Technologies S25FL132K0XMFI040
- Part No.:
- S25FL132K0XMFI040
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
S25FL132K0XMFI040.pdf
- Description:
- IC FLASH 32MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:1,681
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Product details
Overview
S25FL132K0XMFI040 from Cypress Semiconductor is a 32-Mbit (4 Mbyte), 3.0 V serial NOR flash memory with SPI Multi-I/O interface, supporting Quad Read at 108 MHz (54 MB/s), uniform 4 kB sector and 64 kB block erase, and 100K program-erase cycles. It operates across –40 °C to +105 °C (Industrial Plus), features three 256-byte OTP security registers, 8-byte unique ID, and Execute-In-Place capability for embedded code storage in microcontroller boot applications.
For engineers reviewing the S25FL132K0XMFI040 datasheet, S25FL132K0XMFI040 pinout, S25FL132K0XMFI040 application, or S25FL132K0XMFI040 equivalent, key selection criteria include quad-mode read throughput, hardware/software write protection granularity, SFDP compliance, security register configurability, and compatibility with legacy FL-K footprint designs.
Technical Context
This device implements a 90 nm floating gate architecture with SPI-MIO support for Single/Dual/Quad I/O protocols using four dedicated I/O pins (IO0–IO3) under unified command set. Clock polarity/phase modes 0 and 3 are supported, and QIO mode disables WP# and HOLD# functionality while enabling 4-bit-per-cycle transfers.
The memory array is organized into 64 uniform 64 kB blocks (4096 sectors), with programmable protection ranges (top/bottom), volatile/non-volatile configuration registers, and status register bits controlling lock-down, OTP, and block protection states. SFDP (JEDEC JESD216B) enables host auto-discovery of timing, density, and feature parameters.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 32 Mbit (4 Mbyte) - sufficient for firmware images up to ~3.8 MB with overhead, typical for MCU boot code and configuration data storage. |
| Read Throughput (Quad) | 54 MB/s at 108 MHz - matches parallel NOR performance with only 6 pins, enabling efficient XIP in resource-constrained systems. |
| Erase Granularity | Uniform 4 kB sectors and 64 kB blocks - allows fine-grained firmware updates without disturbing adjacent application sections. |
| Endurance & Retention | 100K program-erase cycles / 20-year data retention - validated for long-life industrial deployments with infrequent field updates. |
| Supply Voltage | 2.7 V to 3.6 V - compatible with standard 3.3 V logic rails and tolerant of brown-out conditions down to 2.7 V. |
| Temperature Range | –40 °C to +105 °C (Industrial Plus) - qualified for extended thermal environments in motor control and power electronics. |
| Security Features | Three 256-byte OTP registers + pointer-based protection + 8-byte unique ID - supports secure boot key storage and device identity binding. |
Pinout & Package
Package: 8-contact USON (4 mm × 4 mm), RoHS-compliant, moisture sensitivity level 3 (MSL3).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select Input | Active-low enable for command initiation; must be deasserted between commands to terminate SPI session. |
| SCK | Serial Clock Input | Provides synchronous timing for all SPI transfers; supports up to 108 MHz in Quad mode. |
| IO0 (SI) | Serial Data I/O 0 | Bi-directional data line used for instruction/address input and read data output in all modes; primary signal in Single I/O. |
| IO1 (SO) | Serial Data I/O 1 | Bi-directional data line; enables Dual/Quad I/O operation; carries second bit per cycle in Dual mode, third in Quad mode. |
| IO2 (WP#) | Write Protect Input / I/O 2 | Hardware-level write protection when asserted low; disabled in Quad mode; configurable via status register. |
| IO3 (HOLD#) | Hold Input / I/O 3 | Suspends ongoing command (read/program/erase) without CS# deassertion; disabled in Quad mode. |
| VCC | Power Supply | Single 2.7–3.6 V supply for core and I/O; no separate VIO required. |
| VSS | Ground | Common reference for all signals; requires low-impedance connection to minimize noise during high-speed reads. |
Key Features
| Feature | Design Value |
|---|---|
| Quad Read (QIO) Mode | Enables 54 MB/s continuous read throughput using all four I/O lines, eliminating need for wider parallel interfaces in space-constrained designs. |
| Program/Erase Suspend | Allows interruption of active program or erase operations to service higher-priority reads, improving real-time system responsiveness. |
| Serial Flash Discoverable Parameters (SFDP) | JEDEC JESD216B-compliant parameter table stored in Security Register 0, enabling automatic host configuration without hard-coded timing values. |
| Flexible Protection Architecture | Combines hardware (WP#/HOLD#), software (status register bits), and OTP-based locking with top/bottom range selection for robust firmware integrity. |
| Continuous & Wrapped Read Modes | Reduces XIP latency: Continuous mode minimizes overhead per access; Wrapped mode optimizes cache-line fills after a miss with single-command burst. |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing boot firmware and safety-critical configuration data for programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Non-volatile code storage with Execute-In-Place support, delivering deterministic startup timing and field-upgradable firmware. Use Value: 100K endurance and 20-year retention ensure reliability over 15+ year product lifecycles; Industrial Plus temperature rating supports operation near motor drives. |
Use Scenario: Holding boot code and calibration data for vision processors in advanced driver-assistance systems requiring AEC-Q100 Grade 2 qualification. IC Role / Device Role / Timing Role: SPI-connected NOR flash providing fast, secure, and deterministic boot sequence execution under automotive thermal stress. Use Value: Quad Read speed (54 MB/s) reduces boot time below 100 ms; OTP registers store cryptographic keys resistant to replay or overwrite attacks. |
| Medical Imaging Device Configuration | Smart Energy Meter Firmware |
Use Scenario: Storing calibrated sensor profiles and regulatory-compliant operational parameters in portable ultrasound and MRI subsystems. IC Role / Device Role / Timing Role: Secure, tamper-resistant non-volatile memory with unique device ID for traceability and audit logging. Use Value: 8-byte unique ID enables per-unit firmware binding; top/bottom block protection prevents accidental corruption of calibration data during field updates. |
Use Scenario: Hosting metering firmware and tariff tables in utility-grade smart meters deployed in outdoor enclosures with wide ambient temperature swings. IC Role / Device Role / Timing Role: Low-power, high-reliability flash memory supporting remote OTA updates and secure key management. Use Value: Deep-power-down current (2 µA) extends battery life during mains failure; 4 kB sector erase enables granular, low-risk firmware patching. |
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 |
|---|---|---|---|
| S25FL064L0XMFI000 | 64 Mbit density, 133 MHz Quad Read (66.5 MB/s), 65 nm process, enhanced SFDP v1.6, supports octal DTR mode (not S25FL132K). | Higher bandwidth and density for next-gen boot loaders; requires updated timing initialization and may need PCB layout revision for improved signal integrity. | Select when migrating to newer Cypress platform with longer lifecycle support and higher performance requirements. |
| MX25L3233FZNI-10G | 32 Mbit, 104 MHz Quad Read (52 MB/s), 65 nm process, no OTP security registers, JEDEC-standard SFDP v1.5, different status register map. | Lacks hardware-based security features; suitable for cost-sensitive consumer applications where cryptographic key storage is handled externally. | Select when security register functionality is unnecessary and BOM cost reduction is prioritized over long-term Cypress ecosystem alignment. |
Compared with S25FL132K0XMFI040, S25FL064L offers higher density and speed but requires design updates, while MX25L3233F provides pin-compatible cost savings at the expense of integrated security and Cypress-specific protection features.
Availability
S25FL132K0XMFI040 is available at Aetrix Electronics and suitable for industrial automation, automotive telematics, medical diagnostics, and smart grid infrastructure requiring stable component supply despite end-of-life status.
Supply support for S25FL132K0XMFI040 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
Cypress Semiconductor (now part of Infineon Technologies) is a fabless semiconductor company specializing in embedded systems solutions, including PSoC, Traveo, and serial flash memory families for industrial, automotive, and IoT applications.
The S25FL1-K family was designed to deliver high-performance, secure, and footprint-compatible SPI NOR flash for code storage in microcontroller-based systems requiring XIP, fast boot, and long-term data integrity.
FAQ
Is S25FL132K0XMFI040 still recommended for new designs?
No - Cypress explicitly marks this part as "Not Recommended for New Design" and recommends migration to the S25FL064L family. However, Aetrix Electronics maintains active inventory and supply chain support for legacy design continuity, including full traceability and lifecycle coordination for existing production programs.
What package does S25FL132K0XMFI040 use, and is it RoHS-compliant?
S25FL132K0XMFI040 uses an 8-contact USON package (4 mm × 4 mm, UNF008), with lead-free, halogen-free, and RoHS-compliant construction. The moisture sensitivity level is MSL3, requiring bake conditioning if exposed beyond floor life before reflow soldering.
Does this device support Execute-In-Place (XIP) reliably at maximum clock rate?
Yes - the device supports XIP via Continuous and Wrapped Read modes with verified 108 MHz Quad Read operation across –40 °C to +105 °C. The 54 MB/s throughput and low command overhead enable deterministic instruction fetch timing, validated in Cypress application notes AN98567 and AN98572.
How is security implemented, and can the OTP registers be reprogrammed?
Security relies on three 256-byte OTP registers (locked permanently after programming), 8-byte unique ID, and status-register-controlled protection modes. Once programmed, OTP bits cannot be cleared or rewritten - they provide immutable storage for keys, certificates, or calibration hashes essential for secure boot chains.
S25FL132K0XMFI040 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL1-K
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 32Mbit
- Memory Organization:
- 4M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 108 MHz
- Write Cycle Time - Word, Page:
- 3ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
S25FL132K0XMFI040 FAQ
1.How can I place an order for S25FL132K0XMFI040 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL132K0XMFI040 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 S25FL132K0XMFI040 reliable?
The price and inventory of S25FL132K0XMFI040 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL132K0XMFI040 is usually 5 days.
3.What payment methods are accepted for S25FL132K0XMFI040?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL132K0XMFI040 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL132K0XMFI040?
S25FL132K0XMFI040 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL132K0XMFI040 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 S25FL132K0XMFI040?
For technical support, including S25FL132K0XMFI040 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL132K0XMFI040 requirements.
6.How does Aetrix verify that S25FL132K0XMFI040 is sourced from the original manufacturer or authorized distributors?
All S25FL132K0XMFI040 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 S25FL132K0XMFI040 meets industry standards.
7.What is the process for return or replacement of S25FL132K0XMFI040?
All S25FL132K0XMFI040 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL132K0XMFI040, 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 S25FL132K0XMFI040 part is unused and in its original packaging.
Return procedure for S25FL132K0XMFI040:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FL132K0XMFI040 Tags

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