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Winbond Electronics Corporation W25Q256FVBIG TR
- Part No.:
- W25Q256FVBIG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
W25Q256FVBIG TR.pdf
- Description:
- IC FLASH 256MBIT SPI 24TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,123
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Product details
Overview
W25Q256FVBIG TR from Winbond is a 256M-bit (32MB) serial NOR flash memory supporting Standard/Dual/Quad SPI and QPI interfaces, organized into 131,072 pages of 256 bytes each with uniform 4KB sector erase capability. It operates from 2.7V to 3.6V, delivers up to 104MHz SPI clock speed (416MHz equivalent Quad I/O), and supports true execute-in-place (XIP) operation for code storage in embedded microcontrollers, IoT edge nodes, and industrial HMI displays.
For engineers reviewing the W25Q256FVBIG TR datasheet, W25Q256FVBIG TR pinout, W25Q256FVBIG TR application, or W25Q256FVBIG TR equivalent, this device is selected for high-density, low-pin-count code storage requiring quad I/O throughput, hardware write protection, and JEDEC-compliant SFDP parameter discovery in space-constrained PCB layouts.
Technical Context
The W25Q256FVBIG TR implements a flexible SPI command architecture with three address modes (3-byte, 4-byte, and continuous read with wrap), enabling seamless migration from legacy 16MB designs. Its dual-mode /HOLD or /RESET pin (configurable via Status Register bit HOLD/RST) and non-volatile Quad Enable (QE) bit allow runtime switching between standard SPI and high-speed Quad I/O without external logic.
It integrates volatile/non-volatile status register bits for granular memory protection-including top/bottom block lock, complement protect, and individual sector lock-and supports erase/program suspend/resume for real-time system responsiveness. The 64-bit unique ID and three 256-byte security registers with OTP locks provide traceability and firmware integrity enforcement.
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 supported on same pins with mode-selectable QE bit |
| Max Clock Frequency | 104 MHz SPI clock; enables 416 MB/s effective throughput in Quad I/O Fast Read mode |
| Erase Granularity | Uniform 4 KB sectors (8,192 total), plus 32 KB and 64 KB blocks - enables fine-grained data partitioning |
| Write Endurance | 100,000 program/erase cycles per sector - validated for firmware update logging and configuration storage |
| Data Retention | 20 years at +85°C - meets industrial temperature lifecycle requirements without refresh |
| Supply Voltage | 2.7 V to 3.6 V single supply - compatible with 3.3 V LDOs and avoids level-shifting in mixed-voltage systems |
| Operating Temp | –40°C to +85°C - qualified for extended-temperature industrial and automotive cabin applications |
Pinout & Package
W25Q256FVBIG TR is packaged in an 8-pad WSON 8×6 mm (Package Code E) with exposed thermal pad, optimized for compact PCB footprints and automated reflow assembly. Pin functions are shared across SPI modes, with IO0–IO3 dynamically assigned based on Quad Enable (QE) status.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable controlling device selection and power state transition from standby to active |
| DI (IO0) | Serial Data Input / Quad I/O 0 | Primary input for instructions/addresses in Standard/Dual SPI; becomes bidirectional IO0 in Quad mode when QE=1 |
| DO (IO1) | Serial Data Output / Quad I/O 1 | Primary output for status/data in Standard SPI; becomes bidirectional IO1 in Quad mode when QE=1 |
| /WP (IO2) | Write Protect Input / Quad I/O 2 | Hardware lock for status register writes; repurposed as IO2 in Quad mode - disables hardware WP when QE=1 |
| /HOLD or /RESET (IO3) | Hold Input or Reset Input / Quad I/O 3 | Pauses ongoing SPI transfer or resets internal state; becomes IO3 in Quad mode - function selected by HOLD/RST bit |
| GND | Ground Reference | Signal and power return path; must be low-impedance for stable timing and noise immunity |
| VCC | Power Supply | 2.7–3.6 V main supply; decoupling capacitor required within 5 mm of pin per layout guidelines |
| CLK | Serial Clock Input | Edge-triggered timing reference for all SPI operations; max 104 MHz frequency defines interface bandwidth ceiling |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead to 2 clocks per command, enabling deterministic XIP execution with minimal CPU intervention |
| Erase/Program Suspend & Resume | Allows background firmware updates to pause and resume without corrupting active memory reads or system interrupts |
| JEDEC SFDP Register | Provides standardized, self-describing memory parameters (timing, density, erase sizes) for automatic bootloader configuration |
| 64-bit Unique Serial Number | Enables device-level firmware binding and secure provisioning in production without external EEPROM or OTP programming |
| Three 256-byte Security Registers | Supports encrypted key storage with OTP lock bits - prevents unauthorized readback after initial programming |
| Continuous Read with Wrap | Delivers burst reads of 8/16/32/64 bytes with automatic address wrap, eliminating software address management overhead |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Code |
|---|---|
Use Scenario: Storing firmware images and configuration tables for programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP support for fast boot and real-time task loading. Use Value: 4KB sector granularity enables independent firmware module updates without erasing full application image, reducing field service downtime. |
Use Scenario: Hosting boot loader and safety-critical OS kernel in automotive head units requiring AEC-Q100 alignment. IC Role / Device Role / Timing Role: Secure, high-reliability boot memory interfaced directly to ARM Cortex-A application processor via Quad SPI. Use Value: 20-year data retention at +85°C ensures firmware integrity over vehicle lifetime without periodic refresh or backup power. |
| IoT Edge Gateway Configuration | Medical Device Parameter Storage |
Use Scenario: Persisting network credentials, calibration offsets, and OTA update staging buffers in battery-powered wireless gateways. IC Role / Device Role / Timing Role: Low-power configuration store with <1 µA power-down current and hardware write protection against accidental overwrite. Use Value: Dual-mode /WP and /HOLD pins allow simultaneous hardware lock of critical settings while permitting dynamic parameter updates via software control. |
Use Scenario: Storing FDA-mandated device calibration data, usage logs, and regulatory compliance flags in portable diagnostic equipment. IC Role / Device Role / Timing Role: Tamper-resistant parameter archive with 64-bit unique ID and OTP-locked security registers for audit trail integrity. Use Value: Individual sector lock capability isolates calibration data from firmware partitions, satisfying IEC 62304 data segregation requirements. |
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 | Same 256M-bit density, 104MHz max clock, but uses different SFDP layout and lacks QPI mode; /RESET pin is dedicated (not shared with /HOLD) | Requires modified bootloader initialization sequence; no QPI acceleration benefit for XIP workloads | Select when QPI is unused and legacy MXIC driver compatibility is prioritized over peak throughput |
| S25FL256SAGMFI000 | Offers 133MHz clock and HyperBus interface option, but requires separate VIO supply and larger SOIC-16 footprint; no 8-pin WSON variant | Higher pin count and dual-supply requirement increase BOM cost and layout complexity | Select only when >104MHz throughput is mandatory and board space allows SOIC-16 or TFBGA packaging |
Compared with MX25L25645GMI-10G and S25FL256SAGMFI000, the W25Q256FVBIG TR delivers optimal balance of Quad I/O performance, 8-pin WSON compactness, and integrated security features - making it preferred for new designs targeting cost-sensitive, space-constrained embedded systems.
Availability
W25Q256FVBIG TR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot code, and IoT edge gateway configuration requiring stable component supply across multi-year production cycles.
Supply support for W25Q256FVBIG 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 DRAM, serial flash, and mobile RAM solutions since 1987.
The W25Q series targets embedded systems needing high-density, low-pin-count non-volatile memory with advanced security and interface flexibility - designed specifically for code storage, XIP execution, and firmware update resilience.
FAQ
What is the package type and footprint of the W25Q256FVBIG TR?
The W25Q256FVBIG TR uses an 8-pad WSON 8×6 mm package (Package Code E) with exposed thermal pad. Its footprint matches JEDEC MO-241AC standards and is compatible with standard reflow profiles. This compact package eliminates need for through-hole mounting or large SOIC footprints while maintaining thermal performance for continuous read operations.
Does the W25Q256FVBIG TR support 4-byte addressing, and how is it enabled?
Yes, the W25Q256FVBIG TR supports both 3-byte and 4-byte addressing modes. 4-byte mode is entered using the Enter 4-Byte Address Mode instruction (B7h) and exited with Exit 4-Byte Address Mode (E9h). Once enabled, all subsequent read/write/erase commands use 32-bit addresses - essential for accessing the full 32MB capacity beyond the 16MB limit of 3-byte mode.
How does the /HOLD and /RESET pin sharing work on the W25Q256FVBIG TR?
On the W25Q256FVBIG TR's 8-pin WSON package, Pin 7 serves dual function as /HOLD or /RESET depending on the HOLD/RST bit (bit 7 of Status Register-3). When HOLD/RST = 0, it acts as /HOLD; when HOLD/RST = 1, it functions as /RESET. This configuration is non-volatile and persists across power cycles, allowing system designers to lock the desired function at manufacturing time.
Can the W25Q256FVBIG TR be used for execute-in-place (XIP) applications?
Yes, the W25Q256FVBIG TR supports true XIP operation via its Continuous Read Mode with wrap and Quad I/O interface. With Fast Read Quad I/O (6Bh/6Ch) and QPI mode, it delivers deterministic access latency and sustained throughput sufficient for direct CPU instruction fetch - validated in ARM Cortex-M and RISC-V SoC reference designs.
What security mechanisms does the W25Q256FVBIG TR provide for firmware protection?
The W25Q256FVBIG TR provides layered security: hardware write protection via /WP pin, configurable block/sector lock bits (BP0–BP3, TB, CMP), OTP-locked security registers (3 × 256 bytes), and a 64-bit unique ID. All status register protection bits (SRP0/SRP1) are non-volatile and can be permanently locked to prevent tampering with memory protection settings.
W25Q256FVBIG TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 24-TBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TFBGA (6x8)
W25Q256FVBIG TR FAQ
1.How can I place an order for W25Q256FVBIG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q256FVBIG 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 W25Q256FVBIG TR reliable?
The price and inventory of W25Q256FVBIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q256FVBIG TR is usually 5 days.
3.What payment methods are accepted for W25Q256FVBIG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q256FVBIG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q256FVBIG TR?
W25Q256FVBIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q256FVBIG 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 W25Q256FVBIG TR?
For technical support, including W25Q256FVBIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q256FVBIG TR requirements.
6.How does Aetrix verify that W25Q256FVBIG TR is sourced from the original manufacturer or authorized distributors?
All W25Q256FVBIG 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 W25Q256FVBIG TR meets industry standards.
7.What is the process for return or replacement of W25Q256FVBIG TR?
All W25Q256FVBIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q256FVBIG 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 W25Q256FVBIG TR part is unused and in its original packaging.
Return procedure for W25Q256FVBIG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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