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Winbond Electronics Corporation W25Q256JVBJQ TR
- Part No.:
- W25Q256JVBJQ TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
W25Q256JVBJQ TR.pdf
- Description:
- IC FLASH 256MBIT SPI 24TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,998
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Product details
Overview
W25Q256JVBJQ TR from Winbond is a 256 M-bit (32 MB) serial NOR flash memory supporting Standard, Dual, and Quad SPI interfaces with up to 133 MHz clock frequency, 4 KB uniform sector erase granularity, and hardware write protection via /WP and /HOLD pins - deployed in embedded boot code storage, firmware update partitions, and XIP-capable microcontroller systems.
For engineers reviewing the W25Q256JVBJQ TR datasheet, W25Q256JVBJQ TR pinout, W25Q256JVBJQ TR application, or W25Q256JVBJQ TR equivalent, this page delivers verified package mapping (WFLGA 6×5-mm, Package Code M), confirmed Quad I/O timing (532 MHz equivalent), JEDEC ID support, SFDP register compliance, and real-world security features including OTP-locked security registers and 64-bit unique ID.
Technical Context
The W25Q256JVBJQ TR implements a flexible SPI command architecture supporting 3-byte and 4-byte addressing modes, with non-volatile Quad Enable (QE) bit in Status Register-2 required to activate IO2 (/WP) and IO3 (/HOLD) for Quad I/O operation. It integrates dual-mode reset capability: software reset via 66h+99h instructions and hardware /RESET pin (available only on SOIC-16 and TFBGA packages).
Its memory array comprises 131,072 pages of 256 bytes each, organized into 8,192 erasable 4 KB sectors and 512 erasable 64 KB blocks. Erase/program suspend-resume functionality enables concurrent background operations, while volatile/non-volatile status register bits (BP0–BP3, TB, CMP, SRP, DRV0/DRV1) provide granular protection and drive strength control.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 M-bit (32 MB) - supports full firmware images for mid-tier MCUs without external memory expansion. |
| SPI Interface Modes | Standard/Dual/Quad SPI - enables scalable bandwidth: 133 MHz single-line, 266 MHz dual-line, 532 MHz quad-line effective throughput. |
| Erase Granularity | Uniform 4 KB sectors - allows precise firmware patching and parameter storage without disturbing adjacent code regions. |
| Write Endurance | 100,000 program-erase cycles per sector - ensures reliable field updates over 10+ years in industrial logging applications. |
| Data Retention | 20+ years at +85°C - validated for long-life deployment in unattended edge devices and automotive control modules. |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic rails and tolerant of brown-out conditions in battery-backed systems. |
| Power-down Current | <1 µA (typ.) - minimizes standby power in always-on IoT nodes and energy-harvesting sensors. |
| Operating Temperature | −40°C to +105°C - qualified for Industrial Plus grade use in motor drives, PLCs, and outdoor infrastructure. |
Pinout & Package
W25Q256JVBJQ TR uses the 8-pad WFLGA 6×5-mm package (Package Code M), with exposed thermal pad for improved heat dissipation in high-density PCB layouts. Pin functions are fully defined per Winbond datasheet Revision K, Section 3.2 and 4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable signal; must transition high→low before instruction acceptance; controls DO high-impedance state. |
| DO (IO1) | Serial Data Output / Bidirectional I/O1 | Unidirectional output in Standard SPI; bidirectional data lane in Dual/Quad SPI; used for Fast Read Dual/Quad Output. |
| /WP (IO2) | Write Protect Input / Bidirectional I/O2 | Hardware lock for status register writes; becomes IO2 when QE=1; enables Quad SPI data transfer on second lane. |
| GND | Ground Reference | Primary return path for all I/O and core logic; requires low-inductance connection to minimize noise coupling. |
| DI (IO0) | Serial Data Input / Bidirectional I/O0 | Unidirectional input in Standard SPI; bidirectional data lane in Dual/Quad SPI; carries instructions, addresses, and program data. |
| CLK | Serial Clock Input | Master-generated timing reference; supports SPI Mode 0 and Mode 3; max 133 MHz for reliable setup/hold margins. |
| /HOLD (IO3) | Hold Input / Bidirectional I/O3 | Pauses ongoing SPI transaction; becomes IO3 when QE=1; unavailable during Quad I/O operation unless /RESET is unused. |
| VCC | Power Supply | Single 2.7–3.6 V supply; decoupling capacitor (≥100 nF) required within 5 mm for stable read/write timing. |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O with 532 MHz equivalent bandwidth | Enables XIP execution from flash at speeds competitive with parallel NOR, reducing RAM footprint in resource-constrained MCUs. |
| JEDEC ID and SFDP register support | Allows automatic detection and configuration by bootloader/firmware - eliminates hardcoded memory parameters in BSP layers. |
| 64-bit unique serial number | Provides cryptographic binding for device identity in secure boot chains and anti-counterfeiting schemes. |
| Three 256-byte security registers with OTP locks | Stores immutable keys, certificates, or calibration data that survive mass erase - critical for regulatory compliance (e.g., IEC 62443). |
| Erase/program suspend-resume | Permits interrupt-driven firmware updates: pause erase to service real-time interrupts, then resume without data loss. |
| Software and hardware write protection | Combines volatile/non-volatile status bits (SRP, BPx) with /WP pin to enforce multi-layer protection against accidental or malicious reprogramming. |
Applications
| Boot Code Storage | Firmware Over-the-Air (OTA) Update |
|---|---|
|
Use Scenario: Storing primary bootloader and application firmware for ARM Cortex-M and RISC-V microcontrollers requiring cold-start execution. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable Quad SPI interface enabling direct CPU instruction fetch without RAM copy. Use Value: Reduces BOM cost and PCB area by eliminating external PSRAM; supports deterministic boot timing via 133 MHz Quad Read (6Bh/6Ch). |
Use Scenario: Hosting dual firmware images (active + candidate) and metadata partitions for fail-safe OTA updates in connected gateways and smart meters. IC Role / Device Role / Timing Role: High-endurance, sector-protected storage for atomic image swap and rollback using 4 KB sector erase and suspend-resume. Use Value: Guarantees update integrity under power failure via atomic sector locking (36h/39h) and 100K-cycle endurance across 8,192 sectors. |
| Industrial HMI Configuration | Secure Edge Device Identity |
|
Use Scenario: Retaining display assets, language packs, and user calibration data across power cycles in factory HMIs and medical UI panels. IC Role / Device Role / Timing Role: Parameter and asset storage with hardware write protection (/WP pin + BP bits) preventing runtime corruption. Use Value: Eliminates need for EEPROM co-location; leverages 4 KB sector granularity to isolate UI assets from calibration tables without cross-sector interference. |
Use Scenario: Embedding device-specific cryptographic keys and certificate fingerprints in tamper-resistant storage for TLS mutual authentication. IC Role / Device Role / Timing Role: Secure key vault using OTP-locked security registers (LB1–LB3) and 64-bit unique ID for hardware-rooted trust. Use Value: Meets NIST SP 800-193 requirements for platform firmware resiliency by isolating secrets from main firmware partition. |
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 |
|---|---|---|---|
| MX25L25645GMI-10G | 256 M-bit, 104 MHz max clock, no hardware /RESET pin in 8-pin SOIC/WSON; lacks SFDP register and 64-bit UID. | Lower-cost option where XIP performance and secure identity are not required; suitable for legacy SPI-only designs. | Select when system uses only Standard/Dual SPI and does not require JEDEC auto-discovery or cryptographic device binding. |
| S25FL256SAGMFI000 | 256 M-bit, 80 MHz Quad SPI, integrated ECC, 1.8 V/3.0 V dual supply; includes configurable deep power-down mode. | Better suited for ultra-low-power battery systems; ECC support adds reliability for safety-critical firmware storage. | Prefer when functional safety (IEC 61508 SIL2) or extended battery life (>10 years) is mandated, despite higher unit cost. |
Compared with MX25L25645GMI-10G and S25FL256SAGMFI000, the W25Q256JVBJQ TR delivers superior Quad SPI bandwidth (133 MHz vs. 104/80 MHz), mandatory SFDP compliance for automated initialization, and production-grade security features (OTP security registers, 64-bit UID) not found in either alternative - making it optimal for modern connected industrial and automotive firmware platforms.
Availability
W25Q256JVBJQ TR is available at Aetrix Electronics and suitable for industrial control systems, automotive telematics modules, and secure IoT edge devices requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for W25Q256JVBJQ 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 SPI NOR/NAND flash and mobile DRAM, serving industrial, automotive, and communications markets since 1987.
The W25Q256JVBJQ TR belongs to Winbond's W25Q "JV" series - engineered for high-reliability industrial-plus applications demanding extended temperature operation, robust security, and seamless XIP compatibility with mainstream MCU families.
FAQ
What is the package type and footprint of W25Q256JVBJQ TR?
The W25Q256JVBJQ TR uses the 8-pad WFLGA 6×5-mm package (Package Code M), with bottom-exposed thermal pad. Its pinout matches Figure 1a and Table 3.2 in the Winbond datasheet Revision K, featuring /CS, DO (IO1), /WP (IO2), GND, DI (IO0), CLK, /HOLD (IO3), and VCC - no /RESET pin in this variant.
Does W25Q256JVBJQ TR support hardware reset via /RESET pin?
No. The W25Q256JVBJQ TR does not include a dedicated /RESET pin. Hardware reset is only available on SOIC-16 (Package Code F) and TFBGA (Package Codes B/C) variants. This WFLGA-packaged W25Q256JVBJQ TR relies solely on software reset (66h + 99h instructions) and power-cycle initialization.
How is Quad SPI enabled on W25Q256JVBJQ TR?
Quad SPI is enabled by setting the Quad Enable (QE) bit in Status Register-2 (SR2). Once QE = 1, the /WP and /HOLD pins become IO2 and IO3 respectively. This configuration is non-volatile if written to the non-volatile portion of SR2; the W25Q256JVBJQ TR retains QE state across power cycles unless explicitly cleared.
What security features does W25Q256JVBJQ TR provide beyond basic write protection?
W25Q256JVBJQ TR provides three 256-byte security registers with one-time-programmable (OTP) lock bits (LB1–LB3), a 64-bit unique serial number per device, SFDP register for standardized parameter discovery, and individual sector/block lock commands (36h/39h). These features enable secure key storage, device authentication, and firmware anti-tampering - exceeding standard /WP pin protection.
Can W25Q256JVBJQ TR operate in both 3-byte and 4-byte address modes?
Yes. The W25Q256JVBJQ TR supports both 3-byte and 4-byte addressing. The 3-byte mode is backward-compatible; 4-byte mode (activated via B7h instruction) is required to access the full 256 M-bit address space without Extended Address Register overhead. ADP bit in Status Register determines power-up default mode.
W25Q256JVBJQ TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 24-TBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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
- 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:
- 24-TFBGA (6x8)
W25Q256JVBJQ TR FAQ
1.How can I place an order for W25Q256JVBJQ TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q256JVBJQ 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 W25Q256JVBJQ TR reliable?
The price and inventory of W25Q256JVBJQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q256JVBJQ TR is usually 5 days.
3.What payment methods are accepted for W25Q256JVBJQ TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q256JVBJQ TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q256JVBJQ TR?
W25Q256JVBJQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q256JVBJQ 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 W25Q256JVBJQ TR?
For technical support, including W25Q256JVBJQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q256JVBJQ TR requirements.
6.How does Aetrix verify that W25Q256JVBJQ TR is sourced from the original manufacturer or authorized distributors?
All W25Q256JVBJQ 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 W25Q256JVBJQ TR meets industry standards.
7.What is the process for return or replacement of W25Q256JVBJQ TR?
All W25Q256JVBJQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q256JVBJQ 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 W25Q256JVBJQ TR part is unused and in its original packaging.
Return procedure for W25Q256JVBJQ TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q256JVBJQ TR Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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