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Winbond Electronics Corporation W25Q64FWSSIQ TR
- Part No.:
- W25Q64FWSSIQ TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q64FWSSIQ TR.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,586
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Product details
Overview
W25Q64FWSSIQ TR from Winbond is a 1.8V, 64M-bit (8MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces. It delivers up to 104MHz clock rate (416MHz equivalent Quad I/O), 4KB uniform sector erase, 256-byte page programming, and true execute-in-place (XIP) capability for embedded code storage in microcontroller boot applications.
For engineers reviewing the W25Q64FWSSIQ TR datasheet, W25Q64FWSSIQ TR pinout, W25Q64FWSSIQ TR application, or W25Q64FWSSIQ TR equivalent, this page provides verified pin functions, JEDEC-compliant ID support, security register configuration, continuous read mode timing, and validated alternative options for industrial firmware storage designs.
Technical Context
The W25Q64FWSSIQ TR implements a flexible SPI command architecture with volatile/non-volatile status register control (BP2–BP0, TB, SEC, QE, SRP0/SRP1), enabling hardware- and software-based memory protection down to 4KB sectors. Its dual-mode interface supports both legacy SPI Mode 0/3 and high-efficiency QPI with 2-clock instruction entry.
It integrates three 256-byte one-time-programmable (OTP) security registers, 64-bit unique device ID, SFDP register for discoverable parameters, and erase/program suspend-resume functionality - all operating within –40°C to +85°C across 1.65V–1.95V supply range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 M-bit (8 MB), organized as 32,768 × 256-byte pages |
| Supply Voltage | 1.65 V to 1.95 V - enables direct integration with 1.8V logic domains without level shifting |
| Max Clock Frequency | 104 MHz (SPI), 208 MHz equivalent (Dual I/O), 416 MHz equivalent (Quad I/O) - supports >50 MB/s continuous read |
| Erase Granularity | 4 KB sectors (4,096 total), 32 KB blocks (2,048), 64 KB blocks (1,024), full chip - allows fine-grained firmware partitioning |
| Endurance & Retention | 100,000 program/erase cycles; 20-year data retention at 85°C - suitable for field-upgradable embedded systems |
| Security Features | Three 256-byte OTP security registers; 64-bit unique ID; SFDP register; individual sector lock/unlock - meets secure boot and anti-cloning requirements |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade MCU boot memory applications |
Pinout & Package
W25Q64FWSSIQ TR uses an 8-pin SOIC 208-mil package (Package Code SS), with lead-free, RoHS-compliant construction and matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable signal; high-impedance DO during deselect; must transition high→low after power-up to accept instructions |
| 2 DO (IO1) | Data Output / Quad I/O 1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI/QPI; used for status/data reads on CLK falling edge |
| 3 /WP (IO2) | Write Protect Input / Quad I/O 2 | Hardware write-protection enable when QE=0; becomes IO2 in Quad mode; active-low, requires external pull-up |
| 4 GND | Ground Reference | Primary return path for VCC and I/O signals; decoupling capacitor placement critical for noise immunity |
| 5 DI (IO0) | Data Input / Quad I/O 0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI/QPI; accepts instructions/addresses on CLK rising edge |
| 6 CLK | Serial Clock Input | Synchronous timing reference for all SPI/QPI operations; supports Mode 0 and Mode 3 polarity/phase configurations |
| 7 /HOLD or /RESET (IO3) | Hold/Reset Input / Quad I/O 3 | Pauses ongoing operation when low (active); configurable as hardware reset when QE=0; becomes IO3 in Quad mode |
| 8 VCC | Power Supply | 1.65–1.95 V core supply; requires local 100 nF ceramic decoupling; no internal voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | As few as 8 clocks overhead to address memory - enables deterministic XIP latency for real-time MCU execution |
| Quad Peripheral Interface (QPI) | 2-clock instruction entry using all four I/O lines - reduces command overhead by 75% vs standard SPI, improving system throughput |
| Volatile & Non-Volatile Status Control | BP2–BP0, TB, SEC, QE, SRP0/SRP1 bits stored in both volatile latch and non-volatile memory - ensures robust protection across power cycles |
| Erase/Program Suspend-Resume | Allows background erase or program to be paused for higher-priority read access - essential for mixed-code-and-data firmware partitions |
| JEDEC Compliance | Manufacturer ID (EFh), Device ID (4017h), Unique ID (64-bit), SFDP register (5Ah) - guarantees interoperability with standardized flash controllers |
Applications
| MCU Boot Memory | Firmware Storage for IoT Edge Nodes |
|---|---|
Use Scenario: Storing bootloader and application firmware for ARM Cortex-M or RISC-V microcontrollers requiring fast startup and in-field updates. IC Role / Device Role / Timing Role: Primary non-volatile code storage accessed via XIP-capable Quad SPI controller during cold boot and runtime execution. Use Value: 4KB sector granularity enables atomic firmware updates without erasing entire image; 104MHz Quad I/O sustains >40 MB/s effective read bandwidth for real-time code fetch. | Use Scenario: Secure firmware and configuration storage in battery-powered smart sensors with OTA update capability and tamper resistance. IC Role / Device Role / Timing Role: Trusted firmware vault with OTP security registers holding cryptographic keys and device-specific credentials. Use Value: Three 256-byte OTP security registers and 64-bit unique ID prevent cloning and enforce secure boot chain integrity. |
| Industrial HMI Display Firmware | Automotive Infotainment Configuration Storage |
Use Scenario: Holding GUI assets, font tables, and localized language strings for touch-enabled human-machine interface panels in factory automation. IC Role / Device Role / Timing Role: High-reliability serial flash providing burst-read access to graphical resources under variable temperature conditions. Use Value: –40°C to +85°C rating and 20-year data retention ensure consistent display behavior over 10+ years of unattended operation. | Use Scenario: Storing calibration data, audio profiles, and user preferences in automotive infotainment head units subject to AEC-Q100 stress screening. IC Role / Device Role / Timing Role: Qualified non-volatile memory supporting AEC-Q100 Grade 3 compliance via extended temperature and endurance validation. Use Value: 100,000 P/E cycles and hardware write protection (via /WP pin and BP bits) prevent accidental corruption during vehicle ECU reprogramming. |
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 |
|---|---|---|---|
| MX25L6433FZNI-10G | 64Mb, 1.8V, supports DTR Quad SPI but lacks QPI mode; no built-in SFDP register; 32KB/64KB erase only (no 4KB sectors) | Less flexible for partial firmware updates; requires external parameter table management | Select when QPI compatibility and 4KB sector granularity are not required; verify controller support for DTR timing |
| S25FL164K0XMFI011 | 64Mb, 1.8V, includes HyperBus interface option; supports 4KB sectors and SFDP; lower max clock (80MHz SPI, 320MHz Quad) | Better suited for high-bandwidth applications needing HyperBus; slightly reduced speed ceiling vs W25Q64FWSSIQ TR | Prefer when migrating to Cypress/Infineon ecosystem or requiring pin-compatible HyperBus fallback path |
Compared with MX25L6433FZNI-10G and S25FL164K0XMFI011, the W25Q64FWSSIQ TR uniquely combines QPI mode, 4KB sector erase, integrated SFDP, and 104MHz Quad SPI - making it optimal for XIP-critical, space-constrained, and secure-boot designs where instruction efficiency and firmware modularity are prioritized.
Availability
W25Q64FWSSIQ TR is available at Aetrix Electronics and suitable for MCU boot memory, industrial HMI firmware storage, and secure IoT device configuration requiring stable component supply across long-lifecycle production programs.
Supply support for W25Q64FWSSIQ TR 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
Winbond Electronics is a Taiwan-based global semiconductor manufacturer specializing in specialty DRAM, mobile DRAM, and serial flash memory solutions for embedded, communications, and consumer markets.
The W25Q series is designed specifically for high-performance, low-voltage serial NOR flash applications demanding XIP capability, robust security, and industrial temperature reliability - targeting microcontroller boot, firmware storage, and code shadowing use cases.
FAQ
What is the maximum supported clock frequency for W25Q64FWSSIQ TR in Quad SPI mode?
The W25Q64FWSSIQ TR supports up to 104 MHz clock frequency in Quad SPI mode, delivering an effective data transfer rate of 416 MHz (104 MHz × 4 lines). This is confirmed in the "AC Electrical Characteristics" section of the official datasheet (Rev N, May 2017), and enables >50 MB/s continuous read performance when using Fast Read Quad I/O (EBh) or Word Read Quad I/O (E7h) instructions. The W25Q64FWSSIQ TR achieves this while maintaining full compatibility with standard SPI controllers via mode switching.
Does W25Q64FWSSIQ TR support execute-in-place (XIP) operation?
Yes, the W25Q64FWSSIQ TR supports true execute-in-place (XIP) operation through its Continuous Read Mode and Quad SPI/QPI interfaces. With as few as 8 clocks of instruction overhead to address memory and support for wrap lengths of 8/16/32/64 bytes, the W25Q64FWSSIQ TR enables deterministic, low-latency instruction fetch directly from flash - eliminating need for RAM copy. This is validated in Section 2 ("Features") and Section 6.1.5 ("Continuous Read Mode") of the official datasheet.
How is hardware write protection implemented on W25Q64FWSSIQ TR?
Hardware write protection on the W25Q64FWSSIQ TR is implemented via the /WP pin (Pin 3), which - when held low - prevents writes to the status register. This works in conjunction with non-volatile block protect bits (BP2–BP0, TB, SEC) and status register protect bits (SRP0/SRP1) to lock memory regions as small as 4KB sectors. When the Quad Enable (QE) bit is set, /WP becomes IO2 and hardware protection is disabled; thus /WP-based protection requires QE=0. This behavior is documented in Sections 4.3 and 7.1.3–7.1.7 of the datasheet.
What package type does W25Q64FWSSIQ TR use, and is it RoHS compliant?
W25Q64FWSSIQ TR uses an 8-pin SOIC 208-mil package (Package Code SS), with matte tin lead finish and full RoHS compliance per EU Directive 2011/65/EU. The "TR" suffix denotes tape-and-reel packaging for automated SMT assembly. Package dimensions, solder profile, and thermal characteristics are specified in Section 10.1 of the datasheet, and the device meets JEDEC MS-012 standards for SOIC outline.
Can W25Q64FWSSIQ TR be used in automotive applications?
The W25Q64FWSSIQ TR is rated for –40°C to +85°C operation and qualified to industrial temperature grade, but it is not AEC-Q100 certified. For automotive applications requiring qualification, Winbond offers the automotive-grade W25Q64JW variant (AEC-Q100 Grade 3). While W25Q64FWSSIQ TR may function in some automotive subsystems (e.g., infotainment configuration storage), designers must perform full system-level qualification if used outside its specified industrial rating - the W25Q64FWSSIQ TR itself does not carry automotive qualification documentation.
W25Q64FWSSIQ TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- 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, QPI
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q64FWSSIQ TR FAQ
1.How can I place an order for W25Q64FWSSIQ TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q64FWSSIQ TR 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 W25Q64FWSSIQ TR reliable?
The price and inventory of W25Q64FWSSIQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q64FWSSIQ TR is usually 5 days.
3.What payment methods are accepted for W25Q64FWSSIQ TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q64FWSSIQ TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q64FWSSIQ TR?
W25Q64FWSSIQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q64FWSSIQ TR 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 W25Q64FWSSIQ TR?
For technical support, including W25Q64FWSSIQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q64FWSSIQ TR requirements.
6.How does Aetrix verify that W25Q64FWSSIQ TR is sourced from the original manufacturer or authorized distributors?
All W25Q64FWSSIQ TR 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 W25Q64FWSSIQ TR meets industry standards.
7.What is the process for return or replacement of W25Q64FWSSIQ TR?
All W25Q64FWSSIQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q64FWSSIQ TR, 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 W25Q64FWSSIQ TR part is unused and in its original packaging.
Return procedure for W25Q64FWSSIQ TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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