Infineon Technologies S25FL164K0XMFIQ10
- Part No.:
- S25FL164K0XMFIQ10
- Manufacturer:
- Infineon Technologies
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
S25FL164K0XMFIQ10.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:

- Shipping:

Inventory:2,931
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Product details
Overview
S25FL164K0XMFIQ10 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 - deployed in industrial embedded systems for firmware storage and XIP code execution.
For engineers reviewing the S25FL164K0XMFIQ10 datasheet, S25FL164K0XMFIQ10 pinout, S25FL164K0XMFIQ10 application, or S25FL164K0XMFIQ10 equivalent, key selection criteria include quad-speed read performance, OTP security register support, AEC-Q100 Grade 2 qualification, and migration path to S25FL064L for new designs.
Technical Context
This device implements JEDEC-standard SPI Multi-I/O (MIO) with configurable clock polarity/phase (modes 0 and 3), enabling Single/Dual/Quad I/O protocols using only four to six pins (CS#, SCK, IO0–IO3). It supports SFDP v1.5 (JESD216B) for automatic parameter discovery and includes volatile/non-volatile configuration registers.
The memory array uses 90 nm floating gate technology with execute-in-place (XIP) optimization via continuous and wrapped read modes. Security features include three 256-byte OTP security registers, 8-byte unique ID, pointer-based block protection, and hardware/software write protection with lock-down until power cycle.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (8 Mbyte) - sufficient for full bootloader + application firmware in space-constrained MCU systems |
| Read Throughput | 54 MB/s (Quad Read @ 108 MHz) - matches parallel NOR performance with 75% fewer signals |
| Erase Granularity | Uniform 4 kB sectors and 64 kB blocks - enables fine-grained firmware updates without full chip erase |
| Endurance & Retention | 100K program-erase cycles / 20-year data retention - validated for industrial lifecycle requirements |
| Supply Voltage | 2.7 V to 3.6 V - compatible with standard 3.3 V logic rails and brown-out tolerant operation |
| Temperature Range | −40 °C to +105 °C (Industrial Plus) - qualified per AEC-Q100 Grade 2 for under-hood automotive use |
| Security Features | Three 256-byte OTP registers + 8-byte unique ID + pointer-based protection - enables secure boot and device authentication |
Pinout & Package
Package: 8-lead SOIC (208 mil), standardized footprint SOC008 per datasheet Rev. *H, Page 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select Input | Active-low enable for SPI command sequence; must be held low during entire transaction |
| SCK | Serial Clock Input | Edge-triggered clock up to 108 MHz; phase/polarity configurable for SPI modes 0/3 |
| IO0 (SI) | Serial Data Input / I/O | Primary data input in SIO mode; bidirectional in DIO/QIO; used for instruction/address/data |
| IO1 (SO) | Serial Data Output / I/O | Primary data output in SIO mode; bidirectional in DIO/QIO; supports dual/quad read bursts |
| IO2 (WP#) | Write Protect Input / I/O | Hardware-level protection of status register and memory blocks; disabled when QIO enabled |
| IO3 (HOLD#) | Hold Input / I/O | Suspends ongoing command mid-execution (e.g., during erase); resumes on deassertion |
| VCC | Power Supply | Single 2.7–3.6 V supply; powers core and I/O circuits; requires local 100 nF decoupling |
| VSS | Ground | Signal and power return; must be low-impedance connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Quad Read (QIO) Protocol | Enables 54 MB/s sustained throughput using all four I/O lines - eliminates need for wider parallel interfaces |
| Program/Erase Suspend | Allows background erase to pause for high-priority page programming - critical for real-time firmware updates |
| Serial Flash Discoverable Parameters (SFDP) | JEDEC JESD216B-compliant register map auto-detected by host - removes hardcoded timing assumptions |
| OTP Security Registers | Three independent 256-byte one-time-programmable areas - store cryptographic keys, calibration data, or device IDs |
| Wrapped Read Mode | Optimizes cache-line refill after miss: first byte accessed randomly, then full line fetched in single burst - reduces XIP latency |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
|
Use Scenario: Storing and executing boot firmware and safety-critical control algorithms in programmable logic controllers operating continuously in factory environments. IC Role / Device Role / Timing Role: Non-volatile code storage with Execute-In-Place capability, delivering deterministic startup timing and field-upgradable firmware. Use Value: 100K endurance and 20-year retention ensure reliability over 15+ year equipment lifecycles without replacement. |
Use Scenario: Hosting boot code and sensor fusion firmware for radar/EPS ECUs requiring AEC-Q100 Grade 2 qualification and rapid cold-start response. IC Role / Device Role / Timing Role: Primary boot memory interfacing with ARM Cortex-R5/R7 MCUs via Quad SPI, enabling sub-100 ms firmware load time. Use Value: −40 °C to +105 °C operation and hardware write protection prevent corruption during thermal cycling and EMI events. |
| Medical Imaging System Configuration | Network Router Boot Image |
|
Use Scenario: Storing calibrated imaging parameters, FPGA bitstreams, and regulatory-compliant diagnostic firmware in portable ultrasound devices. IC Role / Device Role / Timing Role: Secure configuration store with OTP registers protecting calibration constants and device identity against tampering. Use Value: Three 256-byte OTP zones allow separation of calibration data, serial number, and security keys - meeting IEC 62304 traceability requirements. |
Use Scenario: Holding primary bootloader and fail-safe recovery image in enterprise-grade routers requiring zero-downtime firmware upgrades. IC Role / Device Role / Timing Role: Dual-bank capable flash supporting atomic firmware swap via sector-level erase and program operations. Use Value: Uniform 4 kB sector erase enables precise partitioning of active/fallback images without wasted space or partial-block overhead. |
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 |
|---|---|---|---|
| S25FL064L0XMFIQ00 | Successor family: 64 Mbit, 133 MHz Quad Read (66.5 MB/s), 65 nm process, enhanced SFDP v1.6, no HOLD#/WP# in QIO mode | Supports higher clock rates and deeper power-down states; lacks legacy S25FL1-K's OTP pointer-protection feature | Select for new designs requiring extended longevity, lower active current (14 mA vs. 16 mA Quad Read), and future-proof SFDP compliance |
| MX25L6433FZNI-10G | 64 Mbit, 104 MHz Quad Read (52 MB/s), 1.8 V / 3.3 V dual supply, no AEC-Q100 qualification, 100K endurance | Broader voltage range but unqualified for automotive; lacks unique ID and pointer-based security registers | Consider for cost-sensitive industrial applications where AEC-Q100 and advanced security are not required |
Compared with S25FL064L0XMFIQ00 and MX25L6433FZNI-10G, the S25FL164K0XMFIQ10 offers verified AEC-Q100 Grade 2 operation and unique pointer-based block protection - making it suitable for legacy automotive and medical deployments where migration is constrained, despite its Not Recommended for New Design status.
Availability
S25FL164K0XMFIQ10 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging system configuration requiring stable component supply amid end-of-life transitions.
Supply support for S25FL164K0XMFIQ10 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 to deliver high-speed SPI NOR flash with robust security and automotive qualification - bridging performance between legacy parallel NOR and modern multi-I/O architectures.
FAQ
Is S25FL164K0XMFIQ10 still in production?
No - Cypress officially retired the S25FL1-K family and designated it "Not Recommended for New Design" as of May 2017. However, Aetrix Electronics maintains active inventory and provides last-time-buy support with full traceability and extended lifecycle coordination for legacy programs.
What package does S25FL164K0XMFIQ10 use?
S25FL164K0XMFIQ10 uses an 8-lead SOIC package with 208-mil body width (standardized as SOC008 per datasheet Rev. *H). It is pin-compatible with other S25FL1-K variants in the same package variant but not with SOIC-16 or WSON variants of the same family.
Does this device support Quad SPI mode with hardware write protection?
No - when Quad I/O (QIO) mode is enabled, the WP# and HOLD# functions are disabled per datasheet Section 2.7–2.8. Hardware write protection remains available only in Single I/O and Dual I/O modes, where IO2 and IO3 operate as dedicated control inputs.
Can S25FL164K0XMFIQ10 be used in automotive applications?
Yes - it is qualified per AEC-Q100 Grade 2 (−40 °C to +105 °C) and supports automotive boot memory use cases. However, Infineon recommends migrating to S25FL-L family devices for new automotive designs due to enhanced reliability, extended temperature margin, and updated security features.
S25FL164K0XMFIQ10 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- FL1-K
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- 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
S25FL164K0XMFIQ10 FAQ
1.How can I place an order for S25FL164K0XMFIQ10 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL164K0XMFIQ10 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 S25FL164K0XMFIQ10 reliable?
The price and inventory of S25FL164K0XMFIQ10 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL164K0XMFIQ10 is usually 5 days.
3.What payment methods are accepted for S25FL164K0XMFIQ10?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL164K0XMFIQ10 transactions.
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4.How is shipping managed for S25FL164K0XMFIQ10?
S25FL164K0XMFIQ10 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL164K0XMFIQ10 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 S25FL164K0XMFIQ10?
For technical support, including S25FL164K0XMFIQ10 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL164K0XMFIQ10 requirements.
6.How does Aetrix verify that S25FL164K0XMFIQ10 is sourced from the original manufacturer or authorized distributors?
All S25FL164K0XMFIQ10 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 S25FL164K0XMFIQ10 meets industry standards.
7.What is the process for return or replacement of S25FL164K0XMFIQ10?
All S25FL164K0XMFIQ10 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL164K0XMFIQ10, 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 S25FL164K0XMFIQ10 part is unused and in its original packaging.
Return procedure for S25FL164K0XMFIQ10:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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