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Winbond Electronics Corporation W25Q64JVSSJQ
- Part No.:
- W25Q64JVSSJQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q64JVSSJQ.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,265
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Product details
Overview
W25Q64JVSSJQ from Winbond is a 64M-bit (8MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces. It operates from 2.7V to 3.6V, delivers up to 133MHz clock rate (532MHz equivalent in Quad I/O), features uniform 4KB sectors (2,048 total), supports XIP execution, and consumes <1µA in power-down mode. It is used for code storage, firmware boot, and parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q64JVSSJQ datasheet, W25Q64JVSSJQ pinout, W25Q64JVSSJQ application, or W25Q64JVSSJQ equivalent, key selection considerations include Quad SPI enable (QE bit), /HOLD vs /RESET functionality per package, sector protection granularity, erase/program suspend capability, and compatibility with JEDEC SFDP and Unique ID requirements.
Technical Context
The W25Q64JVSSJQ implements a unified SPI command set with three operational modes: Standard (DI/DO), Dual (IO0/IO1), and Quad (IO0–IO3), where Quad mode requires non-volatile QE bit = 1 in Status Register-2. Its architecture includes a 256-byte page buffer, 4KB/32KB/64KB erasable units, and hardware write-protection via /WP pin combined with volatile/non-volatile status register bits (BP2–BP0, TB, SEC, CMP).
It integrates three 256-byte security registers, a 64-bit unique serial number, and JEDEC-compliant manufacturer/device ID (9Fh). The /HOLD pin functions as IO3 in Quad mode but serves as hold control in Standard/Dual mode; dedicated /RESET is absent in the SOIC-208-mil (SS) package - only /HOLD is present per pinout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 M-bit (8 MB), organized as 32,768 × 256-byte pages |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic systems without level shifting |
| Max Clock Frequency | 133 MHz (Single SPI); enables 532 MHz effective throughput in Quad I/O Fast Read |
| Erase Granularity | 4 KB sectors (2,048 units), 32 KB blocks (1,024 units), 64 KB blocks (128 units) |
| Endurance & Retention | 100,000 program/erase cycles per sector; >20 years data retention at +25°C |
| Power-Down Current | <1 µA (typical) - critical for battery-backed or ultra-low-power wake-on-event designs |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded deployment |
Pinout & Package
W25Q64JVSSJQ uses the 8-pin SOIC 208-mil package (Package Code SS), with no dedicated /RESET pin - /HOLD (Pin 7) serves dual function as hold input or IO3 in Quad mode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; high-impedance DO during deselect; must transition H→L after power-up to accept commands |
| 2 DO (IO1) | Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad mode; falls on CLK edge |
| 3 /WP (IO2) | Write Protect / I/O2 | Hardware lock for status register; becomes IO2 when QE=1; active-low protection |
| 4 GND | Ground Reference | Primary return path; decoupling capacitor must be placed near Pin 4 and Pin 8 |
| 5 DI (IO0) | Data Input / I/O0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad mode; rises on CLK edge |
| 6 CLK | Serial Clock Input | Synchronizes all SPI transfers; supports Mode 0 and Mode 3; max 133 MHz |
| 7 /HOLD (IO3) | Hold Input / I/O3 | Pauses ongoing read/write when low; becomes IO3 in Quad mode (QE=1); no /RESET in this package |
| 8 VCC | Power Supply | 2.7–3.6 V supply; requires local 100 nF ceramic decoupling between Pins 4 and 8 |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI Enable (QE bit) | Non-volatile bit in Status Register-2 enabling 4-line I/O for 4× throughput boost; required before Quad instructions |
| Erase/Program Suspend | Allows pausing long erase/program operations to service urgent reads; resumes via dedicated instruction |
| Individual Sector Lock | Per-sector (4KB) hardware/software locking via Security Registers and BP bits - prevents accidental overwrite |
| JEDEC SFDP Support | Standard Flash Discovery Parameter table (5Ah) enables automatic driver configuration in modern bootloaders |
| 64-bit Unique ID | Factory-programmed read-only identifier (4Bh) for device authentication, traceability, and secure provisioning |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP support; executes boot loader directly from Quad SPI bus to reduce RAM footprint. Use Value: 4KB sector granularity enables field-upgradable modules without erasing full image; 100K endurance ensures >10 years of OTA update cycles. | Use Scenario: Holding boot code, UI assets, and calibration data in head-unit systems requiring AEC-Q100 alignment and fast cold-boot response. IC Role / Device Role / Timing Role: Primary boot memory interfaced to SoC's Quad SPI controller; leverages 133 MHz clock for sub-200 ms firmware load time. Use Value: <1 µA power-down current extends battery backup runtime; SFDP auto-negotiation simplifies bootloader porting across vehicle platforms. |
| Medical IoT Sensor Node | Network Router Configuration Storage |
Use Scenario: Retaining calibrated sensor offsets, usage logs, and encrypted keys in portable diagnostic devices with strict power budgets. IC Role / Device Role / Timing Role: Secure parameter store using 3×256-byte Security Registers and 64-bit UID for cryptographic binding. Use Value: Hardware /WP pin + BP bits prevent runtime corruption during brown-out events; -40°C to +85°C rating covers clinical operating range. | Use Scenario: Storing routing tables, VLAN configurations, and failover scripts in enterprise-grade switches requiring high reliability and rapid reconfiguration. IC Role / Device Role / Timing Role: Persistent configuration vault with sector-level lock; supports simultaneous read (host) and background erase (firmware update). Use Value: Erase/program suspend allows real-time config access during firmware upgrade; JEDEC ID (9Fh) enables automated inventory verification in provisioning pipelines. |
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 | 64 M-bit, 104 MHz max clock, no Quad Enable bit; uses different status register layout and lacks SFDP | Requires custom driver adaptation; no auto-discovery; lower throughput limits XIP performance | Select only if legacy SPI host lacks Quad mode support and SFDP is unused |
| S25FL064L0XMFI001 | 64 M-bit, 80 MHz max clock, supports Octal DTR mode; includes hardware reset pin in same SOIC-208 package | Slower max throughput than W25Q64JVSSJQ; /RESET available but reduces pin efficiency for simple hold use cases | Prefer when system-level reset coordination is mandatory and clock speed margin is acceptable |
Compared with MX25L6433FZNI-10G and S25FL064L0XMFI001, the W25Q64JVSSJQ offers higher Quad SPI bandwidth (133 MHz vs ≤104/80 MHz), JEDEC SFDP compliance for plug-and-play driver integration, and finer 4KB sector control - making it optimal for XIP-capable, field-upgradable embedded systems where throughput and configurability are prioritized.
Availability
W25Q64JVSSJQ is available at Aetrix Electronics and suitable for industrial PLCs, automotive infotainment systems, and medical IoT sensor nodes requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for W25Q64JVSSJQ 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 targets cost-sensitive, space-constrained embedded applications demanding high-speed code execution, robust data retention, and flexible protection schemes - particularly where Quad SPI and SFDP simplify firmware development and field updates.
FAQ
What is the package type and pin count of W25Q64JVSSJQ?
W25Q64JVSSJQ uses an 8-pin SOIC 208-mil package (Package Code SS). It has no dedicated /RESET pin; Pin 7 functions as /HOLD in Standard/Dual SPI and as IO3 in Quad SPI mode when the QE bit is set. This matches the pinout shown in Figure 1a of the official datasheet Revision J.
Does W25Q64JVSSJQ support Quad SPI operation out of the box?
No - W25Q64JVSSJQ requires the Quad Enable (QE) bit in Status Register-2 to be set to '1' (non-volatile write) before Quad SPI instructions like Fast Read Quad I/O (EBh) become functional. Until then, only Standard and Dual SPI modes operate. The /WP and /HOLD pins repurpose as IO2 and IO3 respectively once QE=1.
What is the minimum erase unit size supported by W25Q64JVSSJQ?
W25Q64JVSSJQ supports 4KB sector erase as its smallest erase unit, with 2,048 uniform sectors. This enables precise firmware patching and parameter updates without disturbing adjacent code or data - critical for OTA updates in resource-limited devices using the W25Q64JVSSJQ.
How does hardware write protection work on W25Q64JVSSJQ?
Hardware write protection on W25Q64JVSSJQ combines the active-low /WP pin with status register bits (BP2–BP0, TB, SEC, CMP). When /WP is held low and corresponding BP bits are set, writes to protected sectors or status registers are blocked. This dual-layer scheme prevents accidental overwrites during power transients or software faults affecting the W25Q64JVSSJQ.
Is there a unique identifier available on W25Q64JVSSJQ?
Yes - W25Q64JVSSJQ includes a factory-programmed, read-only 64-bit Unique ID accessible via instruction 4Bh. This identifier is used for device authentication, secure provisioning, and traceability in production systems relying on the W25Q64JVSSJQ as primary firmware or configuration storage.
W25Q64JVSSJQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- 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:
- 133 MHz
- Write Cycle Time - Word, Page:
- 3ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q64JVSSJQ FAQ
1.How can I place an order for W25Q64JVSSJQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q64JVSSJQ 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 W25Q64JVSSJQ reliable?
The price and inventory of W25Q64JVSSJQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q64JVSSJQ is usually 5 days.
3.What payment methods are accepted for W25Q64JVSSJQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q64JVSSJQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q64JVSSJQ?
W25Q64JVSSJQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q64JVSSJQ 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 W25Q64JVSSJQ?
For technical support, including W25Q64JVSSJQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q64JVSSJQ requirements.
6.How does Aetrix verify that W25Q64JVSSJQ is sourced from the original manufacturer or authorized distributors?
All W25Q64JVSSJQ 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 W25Q64JVSSJQ meets industry standards.
7.What is the process for return or replacement of W25Q64JVSSJQ?
All W25Q64JVSSJQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q64JVSSJQ, 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 W25Q64JVSSJQ part is unused and in its original packaging.
Return procedure for W25Q64JVSSJQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q64JVSSJQ Tags
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