Infineon Technologies S25FL164K0XMFIS11
- Part No.:
- S25FL164K0XMFIS11
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
S25FL164K0XMFIS11.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:1,531
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Product details
Overview
S25FL164K0XMFIS11 from Cypress Semiconductor is a 64-Mbit (8 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, and enables Execute-In-Place (XIP) in embedded boot code storage applications.
For engineers reviewing the S25FL164K0XMFIS11 datasheet, S25FL164K0XMFIS11 pinout, S25FL164K0XMFIS11 application, or S25FL164K0XMFIS11 equivalent, this page delivers verified package mapping (8-lead SOIC 208 mil), validated SPI command set compatibility, real-world XIP timing behavior, and migration guidance to S25FL064L for new designs.
Technical Context
The S25FL164K0XMFIS11 implements a 90 nm floating-gate architecture with dual-mode SPI interface: standard Single I/O (SI/SO), Dual I/O (IO0/IO1), and Quad I/O (IO0–IO3). When Quad mode is enabled, WP# and HOLD# functions are disabled-requiring external hardware protection logic.
It integrates Serial Flash Discoverable Parameters (SFDP) per JEDEC JESD216B, supports volatile/non-volatile configuration registers, and provides programmable dummy cycles for latency optimization. Erase suspend/resume and program suspend/resume enable concurrent host operations during long-duration flash operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (8 Mbyte) - sufficient for full firmware images in resource-constrained microcontrollers |
| Read Throughput | 54 MB/s (Quad Read @ 108 MHz) - matches parallel NOR performance with 4-pin data bus |
| Erase Granularity | Uniform 4 kB sectors and 64 kB blocks - enables fine-grained firmware update partitioning |
| Endurance | 100,000 program-erase cycles - supports field firmware updates over 10+ years of operation |
| Data Retention | 20 years minimum at +85 °C - ensures long-term reliability in industrial control systems |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic rails and brown-out tolerant power domains |
| Temperature Range | –40 °C to +105 °C (Industrial Plus) - qualified for under-hood automotive and factory-floor environments |
Pinout & Package
Package: 8-lead SOIC (208 mil), RoHS-compliant, surface-mount, moisture-sensitive level 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select Input | Active-low enable for SPI command initiation; must be held low for entire command sequence |
| SCK | Serial Clock Input | Edge-triggered clock up to 108 MHz; phase/polarity modes 0 and 3 supported |
| IO0 (SI) | Serial Data Input / I/O0 | Primary data input in Single/Dual/Quad modes; bidirectional in multi-I/O protocols |
| IO1 (SO) | Serial Data Output / I/O1 | Primary data output in Single/Dual modes; bidirectional in Quad mode |
| WP# | Write Protect Input | Hardware lock for top/bottom memory blocks; disabled when Quad I/O is active |
| HOLD# | Hold Input | Suspends ongoing command without CS# deassertion; resumes on next SCK edge |
| VCC | Power Supply | 2.7–3.6 V core/I/O supply; decoupling capacitor required within 10 mm of pin |
| VSS | Ground | Signal and power return; must connect to low-impedance PCB ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Quad Read (QIO) Mode | Enables 54 MB/s continuous read throughput - eliminates need for parallel NOR in space-constrained XIP designs |
| Program/Erase Suspend | Allows host CPU to service interrupts or process data while flash operations execute - improves real-time system responsiveness |
| Three 256-byte OTP Security Registers | Stores immutable keys, calibration data, or device identity - prevents cloning and enables secure boot chain binding |
| JEDEC SFDP Support | Self-describing parameter table accessible via standard command - enables automatic driver configuration without hard-coded timing values |
| Variable Dummy Cycle Latency | Configurable initial wait states per read command - balances access time vs. maximum clock rate for specific PCB trace lengths |
Applications
| Industrial PLC Firmware Storage | Automotive Instrument Cluster Boot Memory |
|---|---|
|
Use Scenario: Stores boot loader and real-time control firmware in programmable logic controllers with field-upgrade capability. IC Role / Device Role / Timing Role: Primary non-volatile code storage with Execute-In-Place support and hardware write protection for safety-critical firmware partitions. Use Value: 4 kB sector erase enables atomic firmware patching; 105 °C rating ensures reliability in cabinet-mounted enclosures near motor drives. |
Use Scenario: Holds boot code and GUI assets for digital instrument clusters requiring AEC-Q100 Grade 2 qualification. IC Role / Device Role / Timing Role: SPI-connected NOR flash providing deterministic XIP execution with <100 ns effective access latency via Quad Read burst. Use Value: 20-year data retention guarantees calibration data integrity over vehicle lifetime; OTP registers store unique VIN-linked security keys. |
| Medical Diagnostic Device Configuration | Network Edge Router Boot Image |
|
Use Scenario: Stores calibrated sensor profiles and regulatory-compliant firmware versions in portable ultrasound and ECG units. IC Role / Device Role / Timing Role: Secure, tamper-resistant configuration memory with hardware-enabled block protection for FDA 21 CFR Part 11 audit trails. Use Value: Three OTP registers hold cryptographic keys for firmware signature verification; 100K endurance supports frequent recalibration cycles. |
Use Scenario: Hosts bootloader and Linux kernel image in compact SD-WAN edge routers with thermal constraints. IC Role / Device Role / Timing Role: High-speed SPI flash enabling fast cold boot (<500 ms) via continuous Quad Read mode and wrapped cache-line refill. Use Value: 54 MB/s read bandwidth reduces boot time by 40% vs. legacy SPI flash; SOIC-208 package simplifies rework in high-density router PCBs. |
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 |
|---|---|---|---|
| S25FL064L0XMFI011 | Successor device: 64 Mbit, 133 MHz Quad Read (66 MB/s), 256 KB uniform sectors, 200K endurance, supports octal DTR mode | Requires updated SPI controller timing setup; lacks legacy 4 kB sector erase granularity | Select for new designs needing higher speed, longer lifecycle, and future-proof interface scalability |
| MX25L6433FZNI-10G | 64 Mbit, 104 MHz Quad Read (52 MB/s), 4 kB/64 kB erase, 100K endurance, same SOIC-208 footprint, no SFDP | No JEDEC SFDP support; requires hardcoded driver parameters; lower max clock rate | Select for cost-sensitive drop-in replacement where SFDP auto-configuration is not required |
Compared with S25FL164K0XMFIS11, S25FL064L0XMFI011 delivers higher throughput and endurance but sacrifices 4 kB erase flexibility, while MX25L6433FZNI-10G offers pin-compatible fallback with reduced feature depth and no self-describing parameter support.
Availability
S25FL164K0XMFIS11 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive instrument cluster boot memory, and medical diagnostic device configuration requiring stable component supply despite end-of-life status.
Supply support for S25FL164K0XMFIS11 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 communications markets.
The S25FL1-K family was engineered for embedded systems requiring robust SPI flash with XIP capability, hardware security, and extended temperature operation - targeting applications where firmware integrity and long-term data retention are critical.
FAQ
Is S25FL164K0XMFIS11 still recommended for new designs?
No - Cypress explicitly designates this part as "Not Recommended for New Design" and recommends migration to S25FL064L. It remains available for legacy production and repair, with full datasheet support and guaranteed supply through Aetrix's continuity program for existing customers.
What are the functional limitations when Quad I/O mode is enabled?
When Quad I/O is active, the WP# and HOLD# pins are repurposed as IO2 and IO3, disabling hardware write protection and command suspension. Designers must implement software-based protection or external logic if those features are required in QIO configurations.
How does the SFDP table improve system integration?
The JEDEC JESD216B-compliant SFDP table provides standardized, read-only register data describing timing parameters, erase block sizes, and command sets. This allows generic flash drivers to auto-configure without hardcoding vendor-specific values, reducing porting effort across platforms.
Can S25FL164K0XMFIS11 be used in automotive applications?
Yes - it is qualified to AEC-Q100 Grade 2 (–40 °C to +105 °C) and supports automotive instrument clusters and body control modules. However, Infineon recommends S25FL064L for new automotive designs due to enhanced reliability metrics and extended lifecycle support.
S25FL164K0XMFIS11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL1-K
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 64Mbit
- Memory Organization:
- 8M 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
S25FL164K0XMFIS11 FAQ
1.How can I place an order for S25FL164K0XMFIS11 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL164K0XMFIS11 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 S25FL164K0XMFIS11 reliable?
The price and inventory of S25FL164K0XMFIS11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL164K0XMFIS11 is usually 5 days.
3.What payment methods are accepted for S25FL164K0XMFIS11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL164K0XMFIS11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL164K0XMFIS11?
S25FL164K0XMFIS11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL164K0XMFIS11 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 S25FL164K0XMFIS11?
For technical support, including S25FL164K0XMFIS11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL164K0XMFIS11 requirements.
6.How does Aetrix verify that S25FL164K0XMFIS11 is sourced from the original manufacturer or authorized distributors?
All S25FL164K0XMFIS11 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 S25FL164K0XMFIS11 meets industry standards.
7.What is the process for return or replacement of S25FL164K0XMFIS11?
All S25FL164K0XMFIS11 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL164K0XMFIS11, 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 S25FL164K0XMFIS11 part is unused and in its original packaging.
Return procedure for S25FL164K0XMFIS11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FL164K0XMFIS11 Tags

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