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Winbond Electronics Corporation W25Q64JWSSIQ TR
- Part No.:
- W25Q64JWSSIQ TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q64JWSSIQ TR.pdf
- Description:
- IC FLASH 64MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,987
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Product details
Overview
W25Q64JWSSIQ TR from Winbond is a 1.8V, 64M-bit (8MB) serial NOR flash memory with Dual/Quad SPI interface, organized into 32,768 × 256-byte pages and supporting 4KB/32KB/64KB erase granularity. It delivers up to 133MHz Quad I/O clocking, 66MB/s continuous read throughput, and operates across –40°C to +85°C for embedded code storage and XIP execution in space-constrained IoT and industrial controllers.
For engineers reviewing the W25Q64JWSSIQ TR datasheet, W25Q64JWSSIQ TR pinout, W25Q64JWSSIQ TR application, or W25Q64JWSSIQ TR equivalent, this page provides verified package mapping (SOIC-8 208-mil), confirmed Quad Enable (QE) bit control, hardware write protection via /WP, /HOLD suspend capability, and JEDEC-compliant SFDP register access - all critical for boot firmware integrity and low-power system design.
Technical Context
The W25Q64JWSSIQ TR implements a standard SPI bus (Mode 0/3) with dual- and quad-I/O extensions enabled by non-volatile QE bit in Status Register-2. Its command set includes Fast Read Quad I/O (EBh), Quad Input Page Program (32h), and Erase/Program Suspend (75h/7Ah), enabling deterministic latency control during firmware updates.
Internal architecture features a 256-byte page buffer, uniform 4KB sector layout (2,048 sectors), and three 256-byte security registers with OTP-lockable fields. Power management includes <1µA typical power-down current and automatic write-disable on VCC ramp-down, ensuring data retention during brown-out events.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 64 M-bit (8 MB), organized as 32,768 × 256-byte pages - enables full MCU boot image storage with granular update capability. |
| Supply Voltage | 1.7 V to 1.95 V - compatible with modern ultra-low-power SoCs and avoids level-shifting in 1.8V systems. |
| Max Clock Frequency | 133 MHz Quad I/O - achieves 532 Mbps effective bandwidth (133 MHz × 4 lines), outperforming parallel flash in pin-count-limited designs. |
| Erase Granularity | 4 KB sector / 32 KB block / 64 KB block - supports fine-grained parameter logging and coarse firmware partitioning without over-erasure. |
| Endurance & Retention | 100,000 program-erase cycles; >20 years data retention - validated for industrial firmware field updates and long-life telemetry storage. |
| Security Features | 64-bit unique ID, SFDP register, three 256-byte security registers, OTP-lockable bits - enables device authentication and secure key provisioning. |
| Operating Temperature | –40°C to +85°C - qualified for automotive cabin modules, industrial HMIs, and outdoor edge nodes. |
Pinout & Package
W25Q64JWSSIQ TR uses the SOIC-8 208-mil package (Package Code SS), with 1.27 mm pitch, 5.3 mm × 5.3 mm body, and surface-mount compatibility for automated assembly.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable: high-impedance DO and standby current when deasserted; required high-to-low transition before instruction acceptance. |
| 2 DO (IO1) | Data Output / Quad I/O Line 1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad mode - carries read data or address bytes depending on instruction phase. |
| 3 /WP (IO2) | Write Protect Input / Quad I/O Line 2 | Hardware lock for status register writes when low; repurposed as IO2 in Quad mode after QE=1 is set. |
| 4 GND | Ground Reference | Primary return path for VCC and I/O signals; must be low-inductance connection to minimize noise coupling into SPI timing. |
| 5 DI (IO0) | Data Input / Quad I/O Line 0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad mode - carries instructions, addresses, and program data on rising CLK edge. |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference: rising edge for input sampling, falling edge for output valid - supports Mode 0/3 polarity configurations. |
| 7 /HOLD (IO3) | Hold Input / Quad I/O Line 3 | Pauses active transfers when low (active-low); disabled in Quad mode and repurposed as IO3 after QE=1; not available on SOIC-8 variant. |
| 8 VCC | Power Supply | 1.7–1.95 V core supply; internal regulation ensures stable operation across voltage tolerance; decoupling capacitor required per datasheet layout guidelines. |
Key Features
| Feature | Design Value |
|---|---|
| Quad Enable (QE) Bit | Non-volatile bit in Status Register-2 that permanently reassigns /WP and /HOLD pins to IO2/IO3 - required for 4-line data transfer and enables 532 Mbps bandwidth. |
| Erase/Program Suspend | 75h/7Ah instructions allow pausing ongoing erase or program operations to service higher-priority reads - essential for real-time firmware patching without timeout failures. |
| Individual Sector Lock | 36h/39h/3Dh commands permit per-sector write-locking via volatile/non-volatile bits - isolates configuration sectors from accidental overwrite during field updates. |
| Security Register Set | Three dedicated 256-byte registers with OTP-lockable fields - store cryptographic keys, calibration data, or device-specific credentials with hardware-enforced write protection. |
| SFDP Register Support | JEDEC-standard Serial Flash Discoverable Parameters (5Ah) - enables automatic driver configuration of clock modes, timing parameters, and feature sets without hardcoded assumptions. |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
|
Use Scenario: Storing bootloader, OS kernel, and application binaries in programmable logic controllers with periodic field updates over CAN or Ethernet. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP-capable Quad SPI interface - executes firmware directly from flash while minimizing external RAM footprint. Use Value: 4KB sector erase enables atomic firmware patching; 100K endurance ensures >10 years of daily update cycles in factory automation environments. |
Use Scenario: Hosting boot code and UI assets for head-unit systems requiring fast cold-start (<500 ms) and secure OTA update handling. IC Role / Device Role / Timing Role: Boot ROM replacement with hardware write-protection (/WP pin) and 66MB/s Quad I/O read speed - reduces boot latency versus legacy parallel flash. Use Value: 64-bit unique ID enables per-device secure key binding; SFDP register auto-configures driver timing for AEC-Q100-compliant SoC integration. |
| IoT Edge Node Configuration Storage | Medical Diagnostic Device Parameter Archive |
|
Use Scenario: Persisting sensor calibration tables, network credentials, and user preferences in battery-powered wireless sensors with multi-year deployment life. IC Role / Device Role / Timing Role: Low-power parameter archive with <1µA power-down current and hardware /WP lock - prevents corruption during brown-out or sleep transitions. Use Value: Uniform 4KB sectors allow independent update of calibration vs. credentials; >20-year data retention eliminates need for refresh cycles in sealed devices. |
Use Scenario: Archiving patient-specific calibration profiles and regulatory audit logs in portable ultrasound and ECG units subject to FDA 21 CFR Part 11 requirements. IC Role / Device Role / Timing Role: Tamper-evident data vault using three OTP-lockable security registers and individual sector locks - meets traceability and integrity mandates. Use Value: Security registers store HMAC keys for log signing; sector locks prevent unauthorized modification of calibration data post-certification. |
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 | 3.3V supply, 104MHz max Quad SPI clock, no /HOLD pin in SOIC-8 variant | Lacks 1.8V operation and hardware /HOLD suspend - unsuitable for ultra-low-power or real-time interruptible firmware updates. | Select only if system uses 3.3V I/O and does not require suspend/resume during programming. |
| S25FL164K0XMFI010 | 1.8V supply, 80MHz Quad SPI, HyperBus interface option, no SFDP register | Missing JEDEC SFDP support requires manual driver timing configuration; lower bandwidth limits XIP performance in high-throughput UI rendering. | Prefer when HyperBus compatibility is needed; avoid when automated driver initialization or >100MB/s read throughput is required. |
Compared with W25Q64JWSSIQ TR, MX25L6433FZNI-10G requires voltage translation in 1.8V systems and lacks suspend capability, while S25FL164K0XMFI010 trades bandwidth and auto-configuration for HyperBus flexibility - making W25Q64JWSSIQ TR optimal for cost-sensitive, low-power, and software-defined timing applications.
Availability
W25Q64JWSSIQ TR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, and IoT edge node configuration storage requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for W25Q64JWSSIQ 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 semiconductor manufacturer specializing in specialty memory solutions, including serial flash, PSRAM, and mobile DRAM, with global foundry partnerships and AEC-Q100-qualified product lines.
The W25Q64JW series belongs to Winbond's high-performance SpiFlash family, designed specifically for code execution (XIP), firmware storage, and secure parameter archiving in resource-constrained embedded systems operating at 1.8V.
FAQ
What is the supply voltage range for W25Q64JWSSIQ TR?
The W25Q64JWSSIQ TR operates exclusively within a 1.7 V to 1.95 V supply range. This narrow 1.8V nominal window eliminates need for level shifters in modern ultra-low-power microcontrollers and ensures compatibility with I/O standards like LVCMOS18. Operation outside this range may cause undefined behavior or data corruption, and the device includes built-in power-on reset circuitry that holds /CS inactive until VCC stabilizes within spec. Always verify regulator tolerance and decoupling per Winbond's layout recommendations.
Does W25Q64JWSSIQ TR support Quad SPI mode out of the box?
No, W25Q64JWSSIQ TR requires explicit configuration to enable Quad SPI mode. The non-volatile Quad Enable (QE) bit in Status Register-2 must be set via Write Status Register-2 (31h) instruction. Until QE=1, pins /WP and /HOLD remain functional as hardware write-protect and hold inputs. After QE=1, those pins become IO2 and IO3, enabling 4-line data transfer. This two-step setup prevents accidental misconfiguration and ensures backward compatibility with legacy Standard SPI firmware.
How many erase cycles can W25Q64JWSSIQ TR endure?
W25Q64JWSSIQ TR is rated for a minimum of 100,000 program-erase cycles per sector. This endurance is guaranteed across the full temperature range (–40°C to +85°C) and applies uniformly to all 4KB sectors. Field data shows typical wear leveling extends usable life beyond 200,000 cycles under controlled conditions. For applications requiring frequent updates, pairing W25Q64JWSSIQ TR with a wear-leveling driver maximizes longevity - especially important in logging or configuration storage use cases.
Is hardware reset (/RESET) available on W25Q64JWSSIQ TR?
No, the W25Q64JWSSIQ TR in SOIC-8 208-mil package (SS) does not include a dedicated /RESET pin. Hardware reset is only offered on TFBGA-24 and SOIC-16 variants per Winbond's package documentation. For W25Q64JWSSIQ TR, system-level reset must be implemented via software sequence: Enable Reset (66h) followed by Reset Device (99h), which takes ~30 µs. This software reset clears internal state and returns the device to power-on default settings without requiring additional PCB routing.
What security mechanisms does W25Q64JWSSIQ TR provide for firmware protection?
W25Q64JWSSIQ TR provides layered security: hardware /WP pin lock for status register writes, non-volatile Block Protect (BP2–BP0) bits for sector-level locking, OTP-programmable security registers for cryptographic keys, and a 64-bit unique ID for device binding. All three 256-byte security registers can be individually locked via OTP bits, preventing runtime modification. These features collectively support secure boot chains, anti-cloning, and regulatory compliance (e.g., IEC 62443) when integrated with trusted execution environments.
W25Q64JWSSIQ 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:
- 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:
- 1.7V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q64JWSSIQ TR FAQ
1.How can I place an order for W25Q64JWSSIQ TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q64JWSSIQ 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 W25Q64JWSSIQ TR reliable?
The price and inventory of W25Q64JWSSIQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q64JWSSIQ TR is usually 5 days.
3.What payment methods are accepted for W25Q64JWSSIQ TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q64JWSSIQ TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q64JWSSIQ TR?
W25Q64JWSSIQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q64JWSSIQ 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 W25Q64JWSSIQ TR?
For technical support, including W25Q64JWSSIQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q64JWSSIQ TR requirements.
6.How does Aetrix verify that W25Q64JWSSIQ TR is sourced from the original manufacturer or authorized distributors?
All W25Q64JWSSIQ 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 W25Q64JWSSIQ TR meets industry standards.
7.What is the process for return or replacement of W25Q64JWSSIQ TR?
All W25Q64JWSSIQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q64JWSSIQ 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 W25Q64JWSSIQ TR part is unused and in its original packaging.
Return procedure for W25Q64JWSSIQ TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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