Infineon Technologies S25FL116K0XMFB043
- Part No.:
- S25FL116K0XMFB043
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
S25FL116K0XMFB043.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:4,004
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Product details
Overview
S25FL116K0XMFB043 from Cypress Semiconductor is a 16-Mbit (2 Mbyte), 3.0 V serial NOR flash memory with SPI Multi-I/O interface, supporting Quad Read at 108 MHz and 54 MB/s continuous data transfer. It features uniform 4-kB sector erase, 100K program-erase cycles, and 20-year data retention. Used for XIP code execution and firmware storage in space-constrained industrial controllers.
For engineers reviewing the S25FL116K0XMFB043 datasheet, S25FL116K0XMFB043 pinout, S25FL116K0XMFB043 application, or S25FL116K0XMFB043 equivalent, key selection factors include Quad I/O read performance, hardware write protection via WP#/HOLD#, SOIC-8 (208 mil) package compatibility, and AEC-Q100 Grade 3 automotive qualification support.
Technical Context
This device implements JEDEC-standard SPI with modes 0 and 3, supporting Normal, Fast, Dual, and Quad Read commands. Its 90 nm floating gate technology enables single-supply operation from 2.6 V to 3.6 V across −40 °C to +105 °C industrial plus temperature range.
The memory includes three 256-byte OTP security registers, 8-byte unique ID, and programmable block protection with top/bottom relative range. SFDP (JESD216B) support enables host auto-configuration of read latency and command sets.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 Mbit (2 Mbyte) - sufficient for boot code and firmware images in microcontroller-based systems |
| Interface | SPI Multi-I/O (x1/x2/x4) - reduces pin count vs parallel NOR while maintaining high throughput |
| Max Quad Read Rate | 108 MHz / 54 MB/s - enables efficient execute-in-place (XIP) without external RAM buffering |
| Erase Granularity | Uniform 4 kB sectors and 64 kB blocks - supports fine-grained firmware updates and secure partitioning |
| Endurance & Retention | 100K cycles / 20 years - meets long-life requirements for industrial and automotive ECUs |
| Supply Voltage | 2.6 V to 3.6 V - compatible with 3.3 V logic rails and tolerant of brown-out conditions |
| Temperature Range | −40 °C to +105 °C (Industrial Plus) - qualified for under-hood automotive and factory automation |
Pinout & Package
Package: 8-lead SOIC (208 mil), footprint code SOC008, RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select | Active-low enable for command decoding; must be held low during entire SPI transaction |
| SCK | Serial Clock | Input clock synchronizing all SPI transfers; supports up to 108 MHz for Quad Read |
| IO0 (SI) | Serial Input / Data Line 0 | Primary data input in SIO mode; LSB of quad data bus in QIO mode |
| IO1 (SO) | Serial Output / Data Line 1 | Primary data output in SIO mode; second bit in DIO/QIO modes |
| WP# | Write Protect | Hardware lock for status register and security registers; active-low, optional use |
| HOLD# | Hold Control | Suspends ongoing command mid-execution; resumes on next SCK edge after deassertion |
| VCC | Power Supply | Single 2.6–3.6 V supply powering core and I/O; no separate VIO required |
| VSS | Ground | Common reference for all signals; requires low-impedance PCB return path |
Key Features
| Feature | Design Value |
|---|---|
| Quad Read (QIO) Mode | Enables 54 MB/s burst reads - eliminates bottleneck for XIP in Cortex-M7/M4 applications |
| Program/Erase Suspend | Allows background erase to pause for high-priority page programming - critical for real-time OTA updates |
| Three 256-byte OTP Registers | Stores immutable keys, calibration data, or device-specific configuration - prevents field tampering |
| JEDEC SFDP Support | Self-describing parameter table allows host bootloader to auto-negotiate read latency and command set |
| Variable Dummy Cycles | Configurable latency per read command - balances speed vs timing margin in noisy environments |
Applications
| Industrial PLC Firmware Storage | Automotive Body Control Module |
|---|---|
Use Scenario: Storing ladder logic firmware and configuration tables in DIN-rail mounted PLCs with limited PCB area. IC Role / Device Role / Timing Role: Non-volatile code storage with execute-in-place capability; interfaces directly to ARM Cortex-M4 host via SPI QIO. Use Value: 54 MB/s Quad Read eliminates need for external SRAM cache, reducing BOM cost and board space by 35%. | Use Scenario: Holding UDS-compliant diagnostic firmware and vehicle-specific calibration maps in BCMs operating at 105 °C ambient. IC Role / Device Role / Timing Role: AEC-Q100 Grade 2 qualified SPI flash providing secure, field-upgradable software storage. Use Value: OTP security registers protect VIN and calibration data from unauthorized reprogramming during service. |
| Medical Infusion Pump Bootloader | Smart Energy Meter Firmware |
Use Scenario: Hosting certified bootloader and safety-critical application code in Class II medical devices requiring traceable firmware revisions. IC Role / Device Role / Timing Role: Primary boot memory with 20-year data retention and 100K endurance for regulatory-compliant over-the-air updates. Use Value: Sector-locked protection prevents accidental overwrite of bootloader region during field firmware upgrades. | Use Scenario: Storing DLMS/COSEM protocol stack and tariff tables in ANSI C12.22-compliant smart meters deployed in outdoor enclosures. IC Role / Device Role / Timing Role: Industrial-grade SPI flash supporting −40 °C to +85 °C operation with hardware WP# for meter certification compliance. Use Value: Dual Read at 27 MB/s enables fast firmware validation during power-on self-test, meeting <500 ms startup requirement. |
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 |
|---|---|---|---|
| S25FL064L0XMFB043 | 64 Mbit density, 133 MHz Quad Read, 1.8 V / 3.0 V dual supply, newer 65 nm process | Higher capacity and speed; supports lower voltage systems; not pin-compatible due to different SOIC-8 pinout | Select for new designs requiring >16 Mbit or 1.8 V operation; migration path per Cypress documentation |
| MX25L1606EM2I-12G | 16 Mbit, 85 MHz Quad Read, 2.7–3.6 V, no OTP security registers or SFDP support | Lacks hardware security features and variable latency; suitable only for cost-sensitive non-secure applications | Use where security and configurability are not required; verify timing margins at 108 MHz operation |
Compared with S25FL064L0XMFB043, this part offers lower density but retains legacy footprint and automotive qualification; versus MX25L1606EM2I-12G, it adds OTP, SFDP, and suspend/resume-critical for certified firmware updates.
Availability
S25FL116K0XMFB043 is available at Aetrix Electronics and suitable for industrial PLCs, automotive body control modules, medical infusion pumps, and smart energy meters requiring stable component supply and long-term lifecycle support.
Supply support for S25FL116K0XMFB043 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) designs high-reliability non-volatile memory and microcontroller solutions for industrial, automotive, and IoT applications.
The S25FL1-K family targets cost-sensitive, space-constrained systems needing secure, high-speed SPI flash with automotive qualification and field-upgrade capability.
FAQ
Is S25FL116K0XMFB043 still recommended for new designs?
No. Cypress explicitly states this part is "Not Recommended for New Design" and recommends migrating to the S25FL064L family. However, it remains available for legacy design support, obsolescence mitigation, and existing production continuity where redesign is impractical or certified.
What does the '0XMFB043' suffix indicate in the part number?
The suffix denotes specific configuration: '0X' = standard grade, 'MF' = SOIC-208 mil package, 'B' = lead-free/RoHS-compliant, '043' = date code (week 43 of year). This matches the SOC008 package variant specified in the datasheet for S25FL116K.
Does this device support Execute-in-Place (XIP) reliably at maximum clock rate?
Yes. With Quad Read enabled and proper PCB layout (controlled impedance, length-matched IO lines), the device achieves 54 MB/s sustained read throughput at 108 MHz, enabling deterministic XIP for ARM Cortex-M series MCUs without instruction cache stalls.
How is hardware write protection implemented on this SPI flash?
Hardware write protection uses the WP# pin to lock status register bits controlling sector/block protection. When WP# is pulled low, writes to protected regions and status register modification are blocked regardless of software commands-providing fail-safe protection against firmware corruption.
S25FL116K0XMFB043 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL1-K
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M 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 ~ 105°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
S25FL116K0XMFB043 FAQ
1.How can I place an order for S25FL116K0XMFB043 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL116K0XMFB043 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 S25FL116K0XMFB043 reliable?
The price and inventory of S25FL116K0XMFB043 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL116K0XMFB043 is usually 5 days.
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Once your S25FL116K0XMFB043 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 S25FL116K0XMFB043?
For technical support, including S25FL116K0XMFB043 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL116K0XMFB043 requirements.
6.How does Aetrix verify that S25FL116K0XMFB043 is sourced from the original manufacturer or authorized distributors?
All S25FL116K0XMFB043 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 S25FL116K0XMFB043 meets industry standards.
7.What is the process for return or replacement of S25FL116K0XMFB043?
All S25FL116K0XMFB043 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL116K0XMFB043, 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 S25FL116K0XMFB043 part is unused and in its original packaging.
Return procedure for S25FL116K0XMFB043:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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