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Cypress Semiconductor Corp S25FL164K0XMFIQ11
- Part No.:
- S25FL164K0XMFIQ11
- Manufacturer:
- Cypress Semiconductor Corp
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
S25FL164K0XMFIQ11.pdf
- Description:
- FLASH - NOR MEMORY IC 64MB (8M X
- Quantity:
- Payment:
- Shipping:
Inventory:2,730
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Product details
Overview
S25FL164K0XMFIQ11 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 code storage and execute-in-place (XIP) boot firmware.
For engineers reviewing the S25FL164K0XMFIQ11 datasheet, S25FL164K0XMFIQ11 pinout, S25FL164K0XMFIQ11 application, or S25FL164K0XMFIQ11 equivalent, key selection considerations include quad I/O timing compliance, security register OTP protection, AEC-Q100 Grade 2 temperature support (–40°C to +105°C), and migration path to S25FL064L.
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 Read protocols using shared IO0–IO3 pins. It supports SFDP (JESD216B) for parameter discovery and includes dedicated hardware write protect (WP#) and hold (HOLD#) inputs independent of quad mode.
The memory array uses 90 nm floating gate technology with non-volatile status registers controlling top/bottom block protection, 8-byte unique ID, and three 256-byte security registers with OTP lock-down. Program suspend/resume and erase suspend/resume are supported, but quad page program (32h) and half-block erase (52h) are explicitly omitted per datasheet Rev. *H.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 Mbit (8 Mbyte) - sufficient for full bootloader + firmware image in space-constrained MCU applications |
| Interface | SPI Multi-I/O (SIO/DIO/QIO) - reduces pin count vs parallel NOR while maintaining XIP performance up to 54 MB/s |
| Max Clock Rate | 108 MHz (Quad Read, –40°C to +105°C) - enables cache-line-aligned wrapped reads for efficient instruction fetch |
| Erase Granularity | Uniform 4 kB sectors and 64 kB blocks - allows fine-grained firmware update without disturbing adjacent code sections |
| Endurance & Retention | 100K program-erase cycles / 20-year data retention - validated for long-life industrial control and automotive ECU logging |
| 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 2.6 V |
| Temperature Range | AEC-Q100 Grade 2 (–40°C to +105°C) - qualified for under-hood automotive applications requiring extended thermal margin |
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 command decoding; must be held low for entire command duration including dummy cycles |
| SCK | Serial Clock Input | Edge-triggered clock for all SPI transfers; supports modes 0 and 3 (CPOL=0/1, CPHA=0/1) |
| IO0 (SI) | Serial Data Input / I/O | Primary input during command/address phase; bidirectional in DIO/QIO read/write; not used in QIO when WP#/HOLD# disabled |
| IO1 (SO) | Serial Data Output / I/O | Primary output during read; bidirectional in DIO/QIO; enables dual/quad throughput without additional pins |
| WP# | Write Protect Input | Hardware-level protection override; active-low, latched on rising edge of CS# - disables program/erase when asserted |
| HOLD# | Command Suspend Input | Pauses ongoing command (read/program/erase) mid-execution; resumes on deassertion - critical for real-time interrupt handling |
| VCC | Core & I/O Supply | Single 2.7–3.6 V rail powers logic and memory array; deep power-down current = 2 µA |
| VSS | Ground Reference | Common return for VCC and all signal I/Os; requires low-impedance PCB connection to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| Quad Read (108 MHz) | 54 MB/s continuous transfer - matches x16 parallel NOR bandwidth while using only 6 pins (CS#, SCK, IO0–IO3) |
| Execute-In-Place (XIP) | Continuous and wrapped read modes reduce instruction fetch latency - eliminates need for RAM shadowing in cost-sensitive designs |
| Three 256-byte OTP Security Registers | Immutable storage for keys, calibration data, or device identity - locked permanently after programming, resistant to voltage glitch attacks |
| Program/Erase Suspend & Resume | Enables high-priority interrupt service without aborting flash operations - guarantees deterministic response time in real-time OS environments |
| JEDEC SFDP (JESD216B) | Self-describing parameter table accessible via standard command - enables automatic driver configuration without hard-coded timing constants |
Applications
| Industrial PLC Firmware Storage | Automotive Instrument Cluster Boot Memory |
|---|---|
Use Scenario: Storing firmware images and configuration tables in programmable logic controllers operating continuously in factory environments with ambient temperatures up to +85°C. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP capability, enabling direct execution from flash to reduce BOM cost and board area. Use Value: 100K endurance and 20-year retention ensure field-upgradable firmware remains reliable over 15+ year product lifecycles without recalibration. |
Use Scenario: Hosting boot code and display assets for digital instrument clusters in vehicles meeting AEC-Q100 Grade 2 requirements (–40°C to +105°C). IC Role / Device Role / Timing Role: Primary boot memory interfacing with ARM Cortex-M7 MCU via Quad SPI, delivering <50 ns access latency via wrapped read mode. Use Value: Hardware WP# and OTP security registers prevent unauthorized firmware modification during vehicle service or OTA updates. |
| Medical Diagnostic Device Configuration | Network Router Bootloader Storage |
Use Scenario: Storing calibrated sensor coefficients and regulatory-compliant diagnostic routines in portable ultrasound and ECG devices certified to IEC 60601-1. IC Role / Device Role / Timing Role: Secure parameter storage with 8-byte unique ID for device traceability and anti-counterfeiting in regulated healthcare supply chains. Use Value: Three OTP security registers allow separate locking of calibration data, serial number, and cryptographic keys - each independently programmable and irreversible. |
Use Scenario: Holding U-Boot SPL and kernel image in enterprise-grade Ethernet switches requiring fast cold-boot (<500 ms) and field firmware updates. IC Role / Device Role / Timing Role: High-speed Quad Read interface delivers 54 MB/s burst reads to DDR controller, reducing boot time by 3.2× vs legacy SPI flash. Use Value: Uniform 4 kB sector erase enables atomic firmware patching without erasing full 8 MB image - minimizing update window and downtime risk. |
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 |
|---|---|---|---|
| S25FL064L0XMFIQ11 | Successor device with 64 Mbit density, 133 MHz Quad Read, 200K endurance, and enhanced SFDP v1.6 support | Requires updated driver for new status register layout and optional octal mode; no HOLD#/WP# in QIO mode | Select for new designs requiring longer lifecycle support and higher performance; not drop-in due to command set extensions |
| MX25L6433FZNI-10G | 64 Mbit SPI flash from Macronix; 104 MHz Quad Read, 100K endurance, no AEC-Q100 qualification | Lacks automotive temperature grade and OTP security registers; uses different SFDP parameter offsets | Acceptable for industrial-only applications where automotive qualification and secure silicon features are not required |
Compared with S25FL164K0XMFIQ11, S25FL064L0XMFIQ11 offers higher speed and longer endurance but requires firmware adaptation, while MX25L6433FZNI-10G provides cost parity without automotive qualification or hardware security - making the original suitable only for legacy maintenance or non-automotive rework.
Availability
S25FL164K0XMFIQ11 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 amid end-of-life transitions.
Supply support for S25FL164K0XMFIQ11 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 microcontrollers, connectivity solutions, and non-volatile memory for industrial, automotive, and consumer applications.
The S25FL1-K family was designed specifically for high-reliability embedded systems needing SPI flash with XIP capability, hardware security, and extended temperature operation - bridging the gap between legacy parallel NOR and modern high-speed serial interfaces.
FAQ
Is S25FL164K0XMFIQ11 still recommended for new designs?
No. Cypress explicitly states this part is "Not Recommended for New Design" and designates S25FL064L as the factory-recommended migration path. The S25FL1-K family has been retired; new projects should use S25FL064L for continued technical support, longer lifecycle, and improved specs including 133 MHz Quad Read and 200K endurance.
What package does S25FL164K0XMFIQ11 use?
S25FL164K0XMFIQ11 uses an 8-lead SOIC package with 208-mil body width (standardized as SOC008 per datasheet Rev. *H). This is distinct from the 150-mil SOIC used for S25FL116K and the WSON/WLCSP variants offered across the family - confirming physical compatibility with existing 208-mil SOIC footprints.
Does this device support Quad SPI with hardware write protection active?
No. When Quad I/O mode is enabled, the WP# and HOLD# pins are repurposed as IO2 and IO3, disabling hardware write protection and suspend functionality. These features remain available only in Single I/O and Dual I/O modes - a documented trade-off per datasheet Section 1.1.2.3.
Can S25FL164K0XMFIQ11 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's migration guidance recommends S25FL064L for new automotive designs due to its extended qualification scope and active production status.
S25FL164K0XMFIQ11 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Cypress Semiconductor Corp
- Series:
- FL1-K
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- 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
S25FL164K0XMFIQ11 FAQ
1.How can I place an order for S25FL164K0XMFIQ11 through Aetrix?
Please submit a Request for Quotation (RFQ) for S25FL164K0XMFIQ11 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 S25FL164K0XMFIQ11 reliable?
The price and inventory of S25FL164K0XMFIQ11 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for S25FL164K0XMFIQ11 is usually 5 days.
3.What payment methods are accepted for S25FL164K0XMFIQ11?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for S25FL164K0XMFIQ11 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for S25FL164K0XMFIQ11?
S25FL164K0XMFIQ11 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your S25FL164K0XMFIQ11 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 S25FL164K0XMFIQ11?
For technical support, including S25FL164K0XMFIQ11 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your S25FL164K0XMFIQ11 requirements.
6.How does Aetrix verify that S25FL164K0XMFIQ11 is sourced from the original manufacturer or authorized distributors?
All S25FL164K0XMFIQ11 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 S25FL164K0XMFIQ11 meets industry standards.
7.What is the process for return or replacement of S25FL164K0XMFIQ11?
All S25FL164K0XMFIQ11 units undergo pre-shipment inspection (PSI). If there is an issue with S25FL164K0XMFIQ11, 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 S25FL164K0XMFIQ11 part is unused and in its original packaging.
Return procedure for S25FL164K0XMFIQ11:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
S25FL164K0XMFIQ11 Tags
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