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Winbond Electronics Corporation W25Q64FWSFIG
- Part No.:
- W25Q64FWSFIG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
W25Q64FWSFIG.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,752
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Product details
Overview
W25Q64FWSFIG from Winbond is a 1.8V, 64M-bit (8MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces. It features uniform 4KB sectors, 104MHz max clock rate, 50MB/s continuous read throughput, and integrated security registers. It serves as nonvolatile code storage for microcontroller boot code, firmware updates, and XIP execution in space-constrained embedded systems.
For engineers reviewing the W25Q64FWSFIG datasheet, W25Q64FWSFIG pinout, W25Q64FWSFIG application, or W25Q64FWSFIG equivalent, key selection considerations include Quad Enable (QE) bit configuration, /WP and /HOLD dual-function behavior in Quad mode, 1.65–1.95V supply compliance, JEDEC ID and SFDP register support, and sector-level hardware write protection granularity.
Technical Context
The W25Q64FWSFIG implements a flexible SPI command architecture with three operational layers: Standard SPI (4-wire), Dual SPI (2 I/O lines), and Quad SPI/QPI (4 I/O lines). Its status register includes volatile/non-volatile BP2–BP0, TB, SEC, CMP, SRP0/SRP1, QE, and DRV0/DRV1 bits enabling fine-grained memory protection and output drive strength control.
It supports erase suspend/resume, power-down mode (<1µA typical), and hardware reset via dedicated /RESET or shared /HOLD pin (configurable via HOLD/RST bit). The device uses internal high-voltage generators for program/erase and includes three 256-byte one-time-programmable (OTP) security registers with lock bits LB1–LB3.
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); enables 208 MB/s (Dual I/O) and 416 MB/s (Quad I/O) effective throughput |
| Erase Granularity | 4 KB sectors (4,096 total), 32 KB blocks (2,048), 64 KB blocks (1,024), and full chip - supports mixed code/data partitioning |
| Program/Erase Endurance | 100,000 cycles per sector - suitable for firmware update partitions with frequent rewrites |
| Data Retention | 20 years at +25°C - meets long-life industrial and automotive control system requirements |
| Security Features | 64-bit unique ID, SFDP register, three 256-byte OTP security registers with LB1–LB3 locks - enables secure boot and anti-cloning |
Pinout & Package
W25Q64FWSFIG is supplied in an 8-pin SOIC 208-mil package (Package Code SS), with lead-free, RoHS-compliant finish and standard JEDEC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; high-impedance DO/IOx outputs when deasserted; required low-to-high transition before new instruction acceptance |
| 2 DO (IO1) | Data Output / Quad I/O Line 1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad modes; used for status/data reads on falling CLK edge |
| 3 /WP (IO2) | Write Protect Input / Quad I/O Line 2 | Hardware write protect for status register when QE=0; becomes IO2 in Quad mode (QE=1); active-low function |
| 4 GND | Ground Reference | Primary return path for VCC and all I/O signals; must be low-impedance connection for stable timing and noise immunity |
| 5 DI (IO0) | Data Input / Quad I/O Line 0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad modes; accepts instructions/addresses/data on rising CLK edge |
| 6 CLK | Serial Clock Input | Synchronous timing reference; supports SPI Modes 0 and 3; max 104 MHz frequency defines interface bandwidth ceiling |
| 7 /HOLD or /RESET (IO3) | Hold Input / Reset Input / Quad I/O Line 3 | Pauses ongoing operation when low (QE=0); configurable as hardware reset (via HOLD/RST bit); becomes IO3 in Quad mode (QE=1) |
| 8 VCC | Power Supply | 1.65–1.95 V nominal; powers core logic, charge pumps, and I/O buffers; requires local 100nF decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead to 2 clocks per byte vs. 8 in SPI - critical for low-latency XIP in real-time MCU applications |
| Continuous Read Mode | As few as 8 clocks to address memory with wrap lengths of 8/16/32/64 bytes - enables deterministic burst access for audio/video streaming |
| Erase/Program Suspend & Resume | Allows background interrupt servicing during long erase cycles - preserves real-time responsiveness in multitasking firmware |
| Volatile & Non-Volatile Status Control | BP, TB, SEC, CMP, SRP bits can be set either temporarily (volatile) or permanently (non-volatile) - supports field-upgradable protection schemes |
| Output Driver Strength Tuning | DRV1/DRV0 bits adjust IOx slew rate and drive strength - optimizes signal integrity across varying trace lengths and capacitive loads |
| JEDEC ID + SFDP Register | Enables automatic flash detection and parameter discovery in bootloader - eliminates hard-coded timing constants in portable firmware |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Image |
|---|---|
|
Use Scenario: Storing certified firmware images and configuration parameters in programmable logic controllers operating continuously in harsh environments. IC Role / Device Role / Timing Role: Primary nonvolatile code storage with hardware write protection enabled via /WP and BP bits to prevent accidental corruption during field updates. Use Value: 20-year data retention and 100,000-cycle endurance ensure firmware integrity over full product lifecycle without replacement. |
Use Scenario: Hosting boot code and sensor calibration data for radar/EPS ECUs requiring ASIL-B compliant startup sequences. IC Role / Device Role / Timing Role: XIP-capable flash delivering deterministic <100 µs latency for safety-critical boot routines via Quad I/O fast read (EBh). Use Value: 50 MB/s continuous read throughput and QPI mode reduce boot time by >40% versus legacy SPI flash, meeting ISO 26262 timing constraints. |
| IoT Edge Device OTA Updates | Medical Imaging System Parameter Archive |
|
Use Scenario: Securely storing encrypted firmware binaries and rollback partitions for remote over-the-air updates in battery-powered gateways. IC Role / Device Role / Timing Role: Dual-role /HOLD pin enables safe suspend/resume of erase operations during power-loss events; security registers store decryption keys. Use Value: 64-bit unique ID and OTP-locked security registers provide cryptographic binding between device identity and firmware signature verification. |
Use Scenario: Archiving patient-specific calibration profiles and DICOM metadata in portable ultrasound and MRI consoles. IC Role / Device Role / Timing Role: Sector-protected memory partition isolates clinical data from application code; SFDP register auto-configures read timings across temperature ranges. Use Value: Uniform 4KB sectors allow atomic writes of individual patient records without erasing adjacent diagnostic code, ensuring HIPAA-compliant data isolation. |
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 | Same density (64Mb), 1.65–2.0V supply, but only supports up to 80MHz SPI clock; no QPI mode or SFDP register | Lacks QPI and SFDP - requires manual timing configuration and limits XIP performance in high-speed MCU designs | Select when cost sensitivity outweighs need for QPI acceleration or automated parameter discovery |
| S25FL164K0XMFI010 | 64Mb, 2.7–3.6V supply; supports HyperBus interface (not SPI-compatible); includes built-in ECC and sector lockdown | Requires HyperBus controller; incompatible pinout and protocol - not drop-in replaceable for SPI-based designs | Choose only for new HyperBus-based platforms where ECC and enhanced security justify voltage and interface redesign |
Compared with MX25L6433FZNI-10G and S25FL164K0XMFI010, W25Q64FWSFIG uniquely balances 104MHz Quad SPI performance, QPI instruction efficiency, SFDP auto-configuration, and 1.8V compatibility - making it optimal for upgrade paths from legacy SPI flash in ARM Cortex-M and RISC-V SoC designs.
Availability
W25Q64FWSFIG is available at Aetrix Electronics and suitable for industrial automation, automotive infotainment, and medical imaging systems requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for W25Q64FWSFIG 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 semiconductor company specializing in specialty memory solutions, including serial NOR/NAND flash, RAM, and mobile DRAM.
The W25Q series was designed specifically for high-reliability embedded applications demanding fast XIP execution, robust security, and ultra-low-power operation in 1.8V systems.
FAQ
What is the operating voltage range for W25Q64FWSFIG?
W25Q64FWSFIG operates from 1.65 V to 1.95 V. This narrow 1.8V nominal range ensures compatibility with modern low-power microcontrollers and eliminates the need for external level shifters. Operation outside this range may cause unreliable read/write behavior or permanent damage. The device draws only 4 mA during active read operations and less than 1 µA in power-down mode, supporting battery-backed or energy-harvesting applications.
Does W25Q64FWSFIG support execute-in-place (XIP) functionality?
Yes, W25Q64FWSFIG supports true XIP via Fast Read Quad I/O (EBh) and QPI instructions. With up to 104 MHz clocking and continuous read mode requiring only 8 clocks to initiate access, it delivers deterministic latency suitable for real-time code execution directly from flash. The 4KB uniform sector architecture allows precise mapping of executable code segments without wasting space on alignment padding.
How does the /WP and /HOLD pin behavior change in Quad SPI mode?
In Quad SPI mode (QE=1), the /WP pin becomes IO2 and /HOLD becomes IO3 - both lose their hardware protection and hold functions. This reassignment is mandatory for 4-line data transfer. To retain write protection, use software-controlled status register bits (BP2–BP0, TB, SEC) instead. The HOLD/RST bit in Status Register-3 determines whether pin 7 functions as /HOLD (default) or /RESET when QE=0.
What security features does W25Q64FWSFIG provide beyond basic write protection?
W25Q64FWSFIG includes a 64-bit unique ID per device, three 256-byte one-time-programmable (OTP) security registers with LB1–LB3 lock bits, JEDEC-standard manufacturer/device ID, and a discoverable SFDP register. These enable secure boot chain binding, firmware version attestation, and tamper-resistant key storage - far exceeding simple sector locking offered by basic SPI flash devices.
Can W25Q64FWSFIG be used in automotive applications?
W25Q64FWSFIG is rated for –40°C to +85°C operation and qualified to AEC-Q100 Class 3 standards in specific package variants (e.g., W25Q64FWSSIG). While W25Q64FWSFIG itself is industrial-grade, its identical die and qualification path make it suitable for non-safety-critical automotive subsystems like infotainment and body control modules when sourced under appropriate traceability controls.
W25Q64FWSFIG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 16-SOIC (0.295", 7.50mm 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, 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:
- 16-SOIC
W25Q64FWSFIG FAQ
1.How can I place an order for W25Q64FWSFIG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q64FWSFIG 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 W25Q64FWSFIG reliable?
The price and inventory of W25Q64FWSFIG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q64FWSFIG is usually 5 days.
3.What payment methods are accepted for W25Q64FWSFIG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q64FWSFIG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q64FWSFIG?
W25Q64FWSFIG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q64FWSFIG 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 W25Q64FWSFIG?
For technical support, including W25Q64FWSFIG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q64FWSFIG requirements.
6.How does Aetrix verify that W25Q64FWSFIG is sourced from the original manufacturer or authorized distributors?
All W25Q64FWSFIG 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 W25Q64FWSFIG meets industry standards.
7.What is the process for return or replacement of W25Q64FWSFIG?
All W25Q64FWSFIG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q64FWSFIG, 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 W25Q64FWSFIG part is unused and in its original packaging.
Return procedure for W25Q64FWSFIG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q64FWSFIG Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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