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Winbond Electronics Corporation W25Q64CVSFIG
- Part No.:
- W25Q64CVSFIG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
W25Q64CVSFIG.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
W25Q64CVSFIG from Winbond is a 64M-bit (8MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces with up to 80MHz clock frequency, 4KB uniform sector architecture, and 1µA typical power-down current. It enables execute-in-place (XIP) code execution, firmware storage, and parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q64CVSFIG datasheet, W25Q64CVSFIG pinout, W25Q64CVSFIG application, or W25Q64CVSFIG equivalent, this page delivers verified pin functions, real-world timing performance (320MHz Quad I/O equivalent), JEDEC ID support, 64-bit unique serial number, and industrial-grade endurance (100,000 program/erase cycles).
Technical Context
The W25Q64CVSFIG implements a SPI command set compliant with Mode 0 and Mode 3, supports hardware write protection via /WP and /HOLD pins, and requires non-volatile Quad Enable (QE) bit setting in Status Register-2 to activate IO2/IO3 for Quad SPI operation. Its block diagram integrates a 256-byte page buffer, SFDP register, and three 256-byte security registers with OTP locks.
It features dual-mode erase control (sector/block/chip), Erase/Program Suspend & Resume functionality, and continuous read mode with as few as 8 clocks overhead for 24-bit address access-enabling true XIP operation without external buffering. The device uses internal high-voltage generators for programming and erasing, eliminating need for external VPP.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 M-bit (8 MB), organized as 32,768 × 256-byte pages |
| SPI Interface Modes | Standard (DI/DO), Dual (IO0/IO1), Quad (IO0–IO3); QE bit required for Quad |
| Max Clock Frequency | 80 MHz; enables 160 MHz (Dual I/O) or 320 MHz (Quad I/O) effective throughput |
| Erase Granularity | Uniform 4 KB sectors (2,048 total), 32 KB blocks (1,024), 64 KB blocks (128), full chip |
| Endurance & Retention | 100,000 program/erase cycles; >20 years data retention at +85°C |
| Supply Voltage | 2.7 V to 3.6 V single supply; 4 mA active current, 1 µA typical power-down |
| Operating Temperature | –40°C to +85°C industrial grade |
| Unique Identifier | 64-bit factory-programmed serial number accessible via Read Unique ID (4Bh) |
Pinout & Package
W25Q64CVSFIG is packaged in an 8-pin SOIC 208-mil (package code SS), with pin 1 = /CS, pin 2 = DO (IO1), pin 3 = /WP (IO2), pin 4 = GND, pin 5 = DI (IO0), pin 6 = CLK, pin 7 = /HOLD (IO3), pin 8 = VCC. All pins support standard SPI; /WP and /HOLD become IO2/IO3 only when QE=1 for Quad mode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS (Pin 1) | Chip Select Input | Active-low enable; places DO/IOx in high-impedance when high; required low-to-high transition before instruction acceptance after power-up |
| DO / IO1 (Pin 2) | Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; bidirectional in Dual/Quad modes; used for status/data reads on CLK falling edge |
| /WP / IO2 (Pin 3) | Write Protect Input / Bidirectional I/O | Hardware lock for Status Register when QE=0; repurposed as IO2 in Quad mode (QE=1); active-low |
| GND (Pin 4) | Ground Reference | Primary return path for VCC and all I/O signals; must be low-impedance for stable timing and noise immunity |
| DI / IO0 (Pin 5) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; bidirectional in Dual/Quad modes; accepts instructions/addresses/data on CLK rising edge |
| CLK (Pin 6) | Serial Clock Input | Master-generated timing signal; supports Mode 0 (CLK idle low) and Mode 3 (CLK idle high); defines data sampling edges |
| /HOLD / IO3 (Pin 7) | Hold Input / Bidirectional I/O | Pauses ongoing SPI transaction when low (active-low); disabled in Quad mode (QE=1); preserves internal state during bus sharing |
| VCC (Pin 8) | Power Supply | 2.7–3.6 V single supply; powers internal logic, charge pumps, and I/O buffers; requires local 0.1 µF decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI with QE bit control | Enables 4-line bidirectional data transfer (IO0–IO3) only when Status Register-2 QE=1, preventing accidental mode change |
| Continuous Read Mode | Reduces instruction overhead to ≤8 clocks per 24-bit address; supports wrap lengths of 8/16/32/64 bytes for efficient XIP streaming |
| Flexible hardware write protection | Combines /WP pin with BP0–BP2, TB, SEC, and SRP bits to protect any 4KB sector or top/bottom array region independently |
| Security registers with OTP locks | Three 256-byte security registers, each lockable permanently via one-time-programmable (OTP) bits to prevent unauthorized firmware modification |
| JEDEC-compliant identification | Supports Read JEDEC ID (9Fh), Manufacturer/Device ID (90h/92h/94h), and SFDP register (5Ah) for automated BOM validation and toolchain integration |
| Erase/Program Suspend & Resume | Allows pausing long erase/program operations (e.g., sector erase) to service time-critical interrupts, then resuming from exact point of suspension |
Applications
| IoT Edge Node Firmware Storage | Industrial PLC Configuration Memory |
|---|---|
|
Use Scenario: Storing boot firmware, OTA update images, and calibration tables in battery-powered wireless sensors with strict PCB area constraints. IC Role / Device Role / Timing Role: Primary non-volatile code and data storage; accessed via Quad SPI at 80MHz for <100ms firmware load time; supports XIP for RAM-constrained MCUs. Use Value: 4KB sector granularity enables atomic updates of individual configuration parameters without erasing full firmware image; 1µA power-down current extends battery life. |
Use Scenario: Retaining user-defined ladder logic, I/O mapping, and alarm thresholds across power cycles in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Parameter and configuration archive; accessed via Dual SPI during startup and runtime writes; hardware /WP pin prevents accidental overwrites during EMI events. Use Value: 100,000-cycle endurance ensures >10 years of daily reconfiguration; top/bottom block protection isolates factory firmware from user-modifiable regions. |
| Automotive ADAS Boot Image Storage | Medical Device Calibration Data Vault |
|
Use Scenario: Holding safety-critical boot code and sensor fusion algorithms in camera-based driver assistance modules requiring AEC-Q200 alignment. IC Role / Device Role / Timing Role: Secure boot memory; validated via Read Unique ID (4Bh) and SFDP register for traceability; Quad SPI enables fast cold-boot within 200ms. Use Value: 64-bit unique serial number enables per-unit firmware binding and anti-cloning; OTP-locked security registers store cryptographic keys inaccessible to host software. |
Use Scenario: Archiving factory-calibrated ADC offsets, transducer gain coefficients, and regulatory audit logs in portable diagnostic equipment. IC Role / Device Role / Timing Role: Tamper-resistant calibration vault; write-protected via /WP pin and Status Register BP bits; accessed via Standard SPI for deterministic timing in safety-critical paths. Use Value: >20-year data retention guarantees calibration validity over device lifetime; sector-level erase allows updating individual sensor calibrations without affecting others. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L6433FZNI-10G | 64Mb density, 104MHz max clock, supports Octal DTR mode; no built-in SFDP register; different security register layout | Lacks continuous read wrap modes and JEDEC ID dual/quad I/O variants; requires custom initialization sequence | Preferred where higher clock rate justifies added software complexity and absence of SFDP simplifies toolchain integration |
| S25FL164K0XMFI010 | 64Mb density, 80MHz clock, supports HyperBus interface; includes configurable reset pin; different sector protection scheme | Requires HyperBus controller instead of SPI; offers faster random access but larger footprint and higher cost | Selected when system already uses Cypress/Infineon HyperFlash ecosystem and needs deterministic sub-100ns read latency |
Compared with W25Q64CVSFIG, MX25L6433FZNI-10G trades SFDP simplicity and Quad I/O ease-of-use for higher raw bandwidth, while S25FL164K0XMFI010 abandons SPI compatibility entirely for HyperBus performance-making W25Q64CVSFIG the optimal balance of interoperability, feature richness, and industrial qualification.
Availability
W25Q64CVSFIG is available at Aetrix Electronics and suitable for IoT edge node firmware storage, industrial PLC configuration memory, and automotive ADAS boot image storage requiring stable component supply, long-term lifecycle assurance, and full industrial temperature range support.
Supply support for W25Q64CVSFIG 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 SPI NOR/NAND flash, mobile DRAM, and code storage devices for embedded and industrial markets.
The W25Q series was designed specifically for high-reliability code storage in resource-constrained systems-emphasizing fast XIP capability, flexible protection schemes, and robustness across extended temperature ranges.
FAQ
What is the package type and lead count of W25Q64CVSFIG?
W25Q64CVSFIG uses an 8-pin SOIC 208-mil package (package code SS) with gull-wing leads. Pinout matches industry-standard SPI pin assignments: /CS (1), DO/IO1 (2), /WP/IO2 (3), GND (4), DI/IO0 (5), CLK (6), /HOLD/IO3 (7), VCC (8). This package is RoHS-compliant and rated for industrial temperature operation.
Does W25Q64CVSFIG support Quad SPI mode out of the box?
No-W25Q64CVSFIG requires explicit configuration to enable Quad SPI. The non-volatile Quad Enable (QE) bit in Status Register-2 must be set via Write Status Register (01h) instruction. Until QE=1, pins /WP and /HOLD remain dedicated hardware controls; after enabling, they function as IO2 and IO3 respectively.
How does W25Q64CVSFIG handle power-down and wake-up sequences?
W25Q64CVSFIG enters ultra-low-power mode (<1µA typical) upon receiving Power-down (B9h) instruction. Wake-up occurs automatically on next /CS low assertion, but /CS must transition high-to-low *after* VCC stabilizes-per datasheet Figure 38. A pull-up resistor on /CS ensures proper tracking of VCC ramp during power-up.
Can W25Q64CVSFIG be used for secure firmware storage?
Yes-W25Q64CVSFIG includes three 256-byte security registers with one-time-programmable (OTP) lock bits, 64-bit unique serial number per unit, and SFDP register for standardized parameter discovery. These features enable cryptographic key binding, firmware version locking, and anti-counterfeiting measures in certified designs.
What erase options does W25Q64CVSFIG provide for field updates?
W25Q64CVSFIG supports four granular erase types: 4KB sector (2,048 units), 32KB block (1,024 units), 64KB block (128 units), and full chip. Sector erase enables atomic updates of individual configuration parameters; block erase optimizes speed for firmware patches; chip erase resets entire memory-each with verified completion via BUSY flag polling.
W25Q64CVSFIG 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
- Clock Frequency:
- 80 MHz
- Write Cycle Time - Word, Page:
- 50µs, 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:
- 16-SOIC
W25Q64CVSFIG FAQ
1.How can I place an order for W25Q64CVSFIG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q64CVSFIG 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 W25Q64CVSFIG reliable?
The price and inventory of W25Q64CVSFIG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q64CVSFIG is usually 5 days.
3.What payment methods are accepted for W25Q64CVSFIG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q64CVSFIG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q64CVSFIG?
W25Q64CVSFIG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q64CVSFIG 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 W25Q64CVSFIG?
For technical support, including W25Q64CVSFIG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q64CVSFIG requirements.
6.How does Aetrix verify that W25Q64CVSFIG is sourced from the original manufacturer or authorized distributors?
All W25Q64CVSFIG 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 W25Q64CVSFIG meets industry standards.
7.What is the process for return or replacement of W25Q64CVSFIG?
All W25Q64CVSFIG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q64CVSFIG, 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 W25Q64CVSFIG part is unused and in its original packaging.
Return procedure for W25Q64CVSFIG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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