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Winbond Electronics Corporation W25Q256FVFJQ TR
- Part No.:
- W25Q256FVFJQ TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
W25Q256FVFJQ TR.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,386
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Product details
Overview
W25Q256FVFJQ TR from Winbond is a 256M-bit (32MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces, organized into 131,072 × 256-byte pages with 4KB uniform sector erase, 104MHz max clock, and single 2.7–3.6V supply - used for XIP code execution, firmware storage, and parameter logging in space-constrained embedded systems.
For engineers reviewing the W25Q256FVFJQ TR datasheet, W25Q256FVFJQ TR pinout, W25Q256FVFJQ TR application, or W25Q256FVFJQ TR equivalent, this page delivers verified package mapping (8-pad WSON 8×6 mm), confirmed pin functions including /CS, CLK, DI/DO/IO0–IO3, /WP, /HOLD, VCC and GND, JEDEC ID support, SFDP register compliance, and real-world timing behavior under 4-byte addressing mode.
Technical Context
The W25Q256FVFJQ TR implements a quad-peripheral interface (QPI) with 2-clock instruction cycle architecture, enabling full-duplex command/data transfer at up to 416MHz equivalent bandwidth using Quad I/O Fast Read (6Ch). Its status register includes non-volatile Quad Enable (QE), Block Protect (BP0–BP3), Top/Bottom (TB), and Complement Protect (CMP) bits that govern hardware write protection scope and address mode persistence.
It supports both 3-byte and 4-byte addressing modes via dedicated instructions (B7h/E9h), with the Extended Address Register (EAR) volatile-only and ADP bit controlling power-up default address mode. Erase/program suspend/resume (75h/7Ah) and individual sector lock/unlock (36h/39h) enable concurrent background operations without halting host access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 M-bit (32 MB), organized as 131,072 × 256-byte pages |
| Interface Modes | Standard SPI, Dual I/O SPI, Quad I/O SPI, and QPI - all with 3- or 4-byte addressing support |
| Max Clock Frequency | 104 MHz (SPI), yielding 208 MHz dual-I/O or 416 MHz quad-I/O effective throughput |
| Erase Granularity | Uniform 4 KB sectors (8,192 total), 32 KB blocks (2,048), 64 KB blocks (1,024), or full chip |
| Write Endurance | ≥100,000 program/erase cycles per sector |
| Data Retention | ≥20 years at +25°C, verified per JEDEC JESD22-A117 |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic systems without level shifting |
| Operating Temp | −40°C to +85°C - qualified for industrial-grade deployment |
Pinout & Package
W25Q256FVFJQ TR uses the 8-pad WSON 8×6-mm package (Package Code E), surface-mount, lead-free, moisture-sensitive level 3 (MSL3), with exposed thermal pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable: high = device deselected, DO in high-Z; low = active communication mode |
| 2 DO (IO1) | Data Output / Bidirectional I/O | Standard SPI output only; becomes IO1 in Dual/Quad modes - shares pin with DO function |
| 3 /WP (IO2) | Hardware Write Protect / Bidirectional I/O | Active-low hardware lock for status register; repurposed as IO2 when QE=1 in Quad mode |
| 4 GND | Ground Reference | Primary signal and power return path - must be low-impedance connection to system ground plane |
| 5 DI (IO0) | Data Input / Bidirectional I/O | Standard SPI input only; becomes IO0 in Dual/Quad modes - shares pin with DI function |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference for all SPI/QPI operations - rising edge for input, falling edge for output |
| 7 /HOLD or /RESET (IO3) | Hold Control or Reset Input / Bidirectional I/O | Active-low pause signal; configured as /RESET only on SOIC-16; becomes IO3 when QE=1 in Quad mode |
| 8 VCC | Power Supply | 2.7–3.6 V main supply - requires local 100 nF ceramic decoupling capacitor placed ≤2 mm from pin |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode with Wrap | Enables efficient XIP execution with ≤8-clock instruction overhead and configurable 8/16/32/64-byte burst wrap |
| Quad Peripheral Interface (QPI) | Reduces instruction overhead via 2-clock-cycle opcodes - eliminates need for repeated instruction bytes in streaming reads |
| Volatile & Non-Volatile Status Registers | Status Register-1 (SR1) and SR2 support both volatile and non-volatile writes - enables field-configurable protection without reprogramming |
| 64-Bit Unique Serial Number | Factory-programmed, read-only identifier per die - supports secure boot, device authentication, and traceability in production |
| Security Registers (3 × 256 bytes) | Dedicated OTP-lockable memory space for keys, certificates, or calibration data - isolated from main array with independent write control |
| JEDEC SFDP Compliance | Standard Flash Discovery Parameter table (5Ah) provides auto-configurable timing, voltage, and feature parameters to host bootloader |
Applications
| Industrial HMI Firmware Storage | Automotive Telematics Boot Image |
|---|---|
Use Scenario: Storing GUI assets, configuration profiles, and firmware updates in panel-mounted HMIs with limited PCB area and no external RAM. IC Role / Device Role / Timing Role: Primary non-volatile code storage executing directly via Quad SPI XIP mode with <1 µs latency per 256-byte page access. Use Value: Eliminates need for parallel NOR or PSRAM; 4KB sector granularity enables atomic OTA update partitioning without erasing full image. |
Use Scenario: Holding boot loader, secure boot keys, and vehicle-specific calibration data in LTE-connected telematics control units. IC Role / Device Role / Timing Role: Trusted firmware repository with hardware write-protection (/WP pin + BP bits) and unique ID for cryptographic binding. Use Value: Prevents unauthorized firmware modification during service; SFDP register allows automatic timing adaptation across temperature ranges. |
| Medical Device Parameter Logging | Network Router Configuration Archive |
Use Scenario: Recording sensor calibration offsets, usage logs, and audit trails in Class II medical instruments requiring long-term data integrity. IC Role / Device Role / Timing Role: Dedicated parameter storage with individual sector lock (36h/39h) and 20-year retention guarantee. Use Value: Enables tamper-evident logging: locked sectors survive power loss and prevent overwrite without explicit unlock sequence. |
Use Scenario: Preserving factory-default configurations, VLAN tables, and firmware rollback images in enterprise-grade routers. IC Role / Device Role / Timing Role: High-reliability configuration archive supporting simultaneous read (host) and background erase (GC) via suspend/resume (75h/7Ah). Use Value: Guarantees zero-downtime config reload during maintenance - no host stall required during sector reclamation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L25673FMI-10G | Same density, 104MHz clock, but lacks QPI mode and SFDP register; uses legacy instruction set only | No auto-timing discovery - requires fixed timing setup in bootloader; no continuous read wrap support | Choose if legacy SPI-only host controller and no XIP requirement; lower cost where QPI/SFDP not needed |
| S25FL256SAGMFV001 | 256Mb, 80MHz max clock, supports HyperBus interface (not SPI/QPI); different pinout and command set | Requires HyperFlash-compatible controller; incompatible with standard SPI host drivers without firmware rewrite | Choose only for new designs targeting Cypress/Infineon HyperBus ecosystem; not drop-in replaceable |
Compared with MX25L25673FMI-10G and S25FL256SAGMFV001, the W25Q256FVFJQ TR uniquely combines QPI acceleration, SFDP auto-configuration, and true XIP-capable continuous read - making it optimal for resource-constrained hosts needing minimal driver footprint and dynamic timing adaptation.
Availability
W25Q256FVFJQ TR is available at Aetrix Electronics and suitable for industrial HMI firmware storage, automotive telematics boot image retention, and medical device parameter logging requiring stable component supply across multi-year production cycles.
Supply support for W25Q256FVFJQ 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 company specializing in specialty memory solutions, including serial flash, mobile DRAM, and code storage devices for embedded and industrial markets.
The W25Q256FVFJQ TR belongs to Winbond's W25Q "SpiFlash" family, designed specifically for high-speed, low-pin-count code and data storage in microcontroller-based systems where board space and power efficiency are critical constraints.
FAQ
What is the package type and footprint of the W25Q256FVFJQ TR?
The W25Q256FVFJQ TR uses an 8-pad WSON (Wettable Flank Small Outline No-Lead) package measuring 8 mm × 6 mm with 0.5 mm pitch. It features exposed thermal pad (non-functional), complies with JEDEC MO-241AC, and is rated MSL3 - requiring bake before reflow if exposed beyond floor life. Pin 1 is marked by a dot or beveled corner.
Does the W25Q256FVFJQ TR support 4-byte addressing, and how is it enabled?
Yes, the W25Q256FVFJQ TR supports both 3-byte and 4-byte addressing modes. To enable 4-byte mode, the host must issue the Enter 4-Byte Address Mode instruction (B7h); to exit, use Exit 4-Byte Address Mode (E9h). The ADP bit in Status Register-2 determines whether 4-byte mode persists after power-up.
How does the /WP pin function differ between Standard SPI and Quad SPI modes on the W25Q256FVFJQ TR?
In Standard/Dual SPI mode, the /WP pin is an active-low hardware write protect for the status register. In Quad SPI mode (when QE=1), the /WP pin becomes IO2 and loses its hardware protection function - status register protection must then rely solely on software-controlled BP bits and SRP settings.
Can the W25Q256FVFJQ TR execute code directly from flash (XIP), and what conditions are required?
Yes, the W25Q256FVFJQ TR supports true execute-in-place (XIP) via Continuous Read Mode with Quad I/O Fast Read (6Ch) or QPI instructions. Required conditions include enabling QE bit, configuring correct drive strength (DRV1/DRV0), using 4-byte addressing for >16MB access, and ensuring host controller supports QPI or Quad I/O timing.
What security mechanisms does the W25Q256FVFJQ TR provide for firmware protection?
The W25Q256FVFJQ TR provides layered security: hardware /WP pin lock, non-volatile block protect (BP0–BP3), top/bottom/complement array protection, individual sector lock/unlock (36h/39h), three 256-byte OTP-locked security registers, and a factory-programmed 64-bit unique ID - all usable together to enforce hierarchical firmware integrity policies.
W25Q256FVFJQ TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 256Mbit
- Memory Organization:
- 32M x 8
- Memory Interface:
- SPI - Quad I/O, QPI
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 50µs, 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:
- 16-SOIC
W25Q256FVFJQ TR FAQ
1.How can I place an order for W25Q256FVFJQ TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q256FVFJQ 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 W25Q256FVFJQ TR reliable?
The price and inventory of W25Q256FVFJQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q256FVFJQ TR is usually 5 days.
3.What payment methods are accepted for W25Q256FVFJQ TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q256FVFJQ TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q256FVFJQ TR?
W25Q256FVFJQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q256FVFJQ 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 W25Q256FVFJQ TR?
For technical support, including W25Q256FVFJQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q256FVFJQ TR requirements.
6.How does Aetrix verify that W25Q256FVFJQ TR is sourced from the original manufacturer or authorized distributors?
All W25Q256FVFJQ 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 W25Q256FVFJQ TR meets industry standards.
7.What is the process for return or replacement of W25Q256FVFJQ TR?
All W25Q256FVFJQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q256FVFJQ 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 W25Q256FVFJQ TR part is unused and in its original packaging.
Return procedure for W25Q256FVFJQ TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q256FVFJQ TR Tags
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M24C02-WMN6TP
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