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Winbond Electronics Corporation W25Q256JVFIQ TR
- Part No.:
- W25Q256JVFIQ TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
W25Q256JVFIQ TR.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:590
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Product details
Overview
W25Q256JVFIQ TR from Winbond is a 256M-bit (32MB) serial NOR flash memory IC supporting standard, dual, and quad SPI interfaces with up to 133 MHz clock frequency, 4KB uniform sector architecture, and hardware write protection via /WP and /HOLD pins - used for code storage, XIP execution, and firmware parameter retention in embedded microcontrollers.
For engineers reviewing the W25Q256JVFIQ TR datasheet, W25Q256JVFIQ TR pinout, W25Q256JVFIQ TR application, or W25Q256JVFIQ TR equivalent, key selection criteria include 3–4 byte address mode support, Quad Enable (QE) bit configuration, JEDEC ID/SFDP register compliance, and package-specific /RESET availability in SOIC/TFBGA variants.
Technical Context
The W25Q256JVFIQ TR implements a flexible SPI interface with three operational modes: Standard (DI/DO), Dual (IO0/IO1), and Quad (IO0–IO3), where IO2 and IO3 are remapped from /WP and /HOLD only when the non-volatile Quad Enable (QE) bit in Status Register-2 is set. It supports both 3-byte and 4-byte addressing, with automatic ADP bit control of power-up default mode.
Internally, the device organizes memory into 131,072 × 256-byte pages across 8,192 erasable 4KB sectors and 512 erasable 64KB blocks, enabling granular erase control. Erase/program suspend/resume functionality allows background operations without interrupting host communication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 M-bit (32 MB) - sufficient for full MCU boot images and firmware binaries in space-constrained designs |
| Interface Support | Standard/Dual/Quad SPI - enables scalable bandwidth: 133 MHz single-line, 266 MHz dual-line, or 532 MHz quad-line effective throughput |
| Erase Granularity | 4 KB sectors (uniform) - permits fine-grained firmware update partitioning without disturbing adjacent code or config data |
| Write Endurance | 100,000 program-erase cycles per sector - supports field firmware updates over multi-year product lifecycle |
| Data Retention | 20+ years at +85°C - ensures long-term reliability for industrial and automotive storage applications |
| Supply Voltage | 2.7 V to 3.6 V - compatible with common 3.3 V logic rails and low-power system domains |
| Power-Down Current | <1 µA (typ.) - minimizes standby power in battery-backed or energy-harvesting systems |
Pinout & Package
W25Q256JVFIQ TR uses the 8-pad WSON 8×6-mm package (Package Code E), with no dedicated /RESET pin - /HOLD pin serves dual function as IO3 in Quad SPI mode and cannot be used for hardware reset.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable signal; high-impedance DO output and standby current when deasserted |
| DO (IO1) | Serial Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; bidirectional data lane IO1 in Dual/Quad SPI |
| /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware lock for status register when active low; becomes IO2 in Quad SPI when QE=1 |
| GND | Ground Reference | Primary return path for all I/O and core logic; must be low-impedance for noise immunity |
| DI (IO0) | Serial Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; bidirectional data lane IO0 in Dual/Quad SPI |
| CLK | Serial Clock Input | Edge-triggered timing reference for all SPI transfers; supports Mode 0 and Mode 3 polarity/phasing |
| /HOLD (IO3) | Hold Input / Bidirectional I/O | Pauses ongoing SPI transfer when asserted low; becomes IO3 in Quad SPI when QE=1 |
| VCC | Power Supply | Single 2.7–3.6 V supply powering core logic, I/O buffers, and charge pumps for programming/erasing |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI with QE bit control | Enables 4-lane data transfer only after explicit non-volatile configuration - prevents accidental mode corruption during power cycling |
| Erase/Program Suspend & Resume | Allows host to pause background erase or program operations to service time-critical reads - critical for real-time firmware updates |
| 64-bit Unique Serial Number | Factory-programmed per-device identifier - enables secure device authentication and firmware binding in IoT edge nodes |
| Three 256-byte Security Registers | OTP-lockable storage for cryptographic keys or calibration data - isolated from main array and protected by dedicated lock bits |
| SFDP Register Compliance | JEDEC JESD216-compliant parameter table - enables automatic driver configuration in Linux/RTOS without hard-coded timing values |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
Use Scenario: Storing bootloader, OS kernel, and application firmware in programmable logic controllers requiring field-upgradable code with sector-level write protection. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP-capable Quad SPI interface - delivers deterministic read latency for real-time task initialization. Use Value: 4KB sector granularity enables atomic firmware patching without erasing entire image; 100K endurance supports >10 years of scheduled updates. |
Use Scenario: Holding boot code and UI assets for head-unit systems where fast cold-start and secure firmware validation are mandatory. IC Role / Device Role / Timing Role: High-speed boot memory interfaced to ARM Cortex-A application processor via Quad SPI - reduces boot time by 3.2× vs. standard SPI. Use Value: 532 MHz effective bandwidth and SFDP auto-negotiation eliminate manual timing tuning; unique ID enables anti-cloning in Tier-1 supply chain. |
| Medical Device Configuration Archive | Smart Energy Meter Parameter Log |
Use Scenario: Retaining calibrated sensor coefficients, user preferences, and audit logs in Class II medical instruments subject to FDA 21 CFR Part 11 requirements. IC Role / Device Role / Timing Role: Secure parameter storage with hardware write-protection (/WP pin) and OTP security registers - prevents unauthorized runtime modification. Use Value: Three 256-byte OTP-locked security registers store encryption keys and calibration signatures; 20-year data retention meets regulatory archival mandates. |
Use Scenario: Logging tariff schedules, consumption history, and firmware version stamps in utility-grade meters operating unattended for 15+ years. IC Role / Device Role / Timing Role: Low-power non-volatile logging memory with <1 µA deep-sleep current - extends battery life in AMI endpoints with infrequent wake-ups. Use Value: Uniform 4KB sectors allow cyclic overwrite of oldest log entries without wear leveling overhead; -40°C to +85°C rating ensures outdoor deployment reliability. |
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 density (256Mb), 104 MHz max clock, no /RESET in 8-pin SOIC; lacks SFDP register and 4-byte address auto-detection | Requires manual 4-byte mode entry; no automatic driver discovery - increases BSP integration effort | Select when legacy SPI controller lacks SFDP support and Quad SPI is unused |
| S25FL256SAGMFV001 | 256Mb, 133 MHz, includes on-die ECC and configurable dummy cycles; supports octal DTR mode (not W25Q256JVFIQ TR) | Higher reliability for safety-critical writes; extra timing flexibility for marginal PCB layouts | Select when system requires built-in ECC for ASIL-B compliance or needs extended timing margin |
Compared with MX25L25645GMI-10G and S25FL256SAGMFV001, the W25Q256JVFIQ TR offers JEDEC SFDP auto-configuration and seamless 3/4-byte address transition - reducing firmware porting time and eliminating manual timing register setup in new designs.
Availability
W25Q256JVFIQ TR is available at Aetrix Electronics and suitable for industrial PLCs, automotive infotainment systems, and medical diagnostics equipment requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for W25Q256JVFIQ 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 NOR/NAND flash, RAM, and mobile DRAM - serving industrial, automotive, and communications markets since 1987.
The W25Q series targets high-performance embedded systems needing reliable, pin-efficient code storage with advanced features like Quad SPI, SFDP, and security registers - designed specifically for MCU boot and firmware update use cases.
FAQ
What is the maximum SPI clock frequency supported by the W25Q256JVFIQ TR?
The W25Q256JVFIQ TR supports up to 133 MHz for standard, dual, and quad SPI operations. In Quad SPI mode with Fast Read Quad I/O (EBh), this yields an effective data rate of 532 MHz (133 MHz × 4). This specification is validated under VCC = 2.7–3.6 V and TA = -40°C to +85°C per the August 2017 Revision G datasheet. The W25Q256JVFIQ TR does not support higher frequencies such as 166 MHz or octal modes.
Does the W25Q256JVFIQ TR have a hardware reset pin (/RESET)?
No, the W25Q256JVFIQ TR does not include a dedicated /RESET pin. It uses the 8-pad WSON 8×6-mm package (Code E), which maps /HOLD to pin 7 and omits /RESET entirely. Hardware reset is only available on SOIC-16 (Package Code F) and TFBGA (Package Codes B/C) variants. The W25Q256JVFIQ TR relies on software reset commands (66h + 99h) or power-cycle initialization.
How is 4-byte addressing enabled on the W25Q256JVFIQ TR?
4-byte addressing on the W25Q256JVFIQ TR is enabled via the Enter 4-Byte Address Mode instruction (B7h), which sets the ADP bit in the non-volatile configuration register. Power-up defaults to 3-byte mode unless ADP=1 is pre-programmed. Unlike some competitors, the W25Q256JVFIQ TR does not require external address latching or mode pins - the setting persists across power cycles and is managed entirely through SPI commands.
What is the purpose of the Quad Enable (QE) bit in the W25Q256JVFIQ TR?
The Quad Enable (QE) bit - located in Status Register-2 - must be set to '1' to activate Quad SPI mode on the W25Q256JVFIQ TR. When QE=1, the /WP and /HOLD pins become IO2 and IO3 respectively, enabling four-lane data transfer. This bit is non-volatile and survives power loss, but must be explicitly written using Write Status Register-2 (31h) - it is not set by default at power-up.
Can the W25Q256JVFIQ TR be used for Execute-in-Place (XIP) applications?
Yes, the W25Q256JVFIQ TR supports true XIP operation via its Quad SPI interface and Fast Read Quad I/O (EBh) instruction, delivering up to 532 MHz effective bandwidth. Its uniform 4KB sector architecture and erase/program suspend capability allow deterministic interrupt latency during code execution - making it suitable for direct execution in Cortex-M and RISC-V microcontrollers without local RAM shadowing.
W25Q256JVFIQ 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:
- Active
- Programmable:
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
W25Q256JVFIQ TR FAQ
1.How can I place an order for W25Q256JVFIQ TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q256JVFIQ 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 W25Q256JVFIQ TR reliable?
The price and inventory of W25Q256JVFIQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q256JVFIQ TR is usually 5 days.
3.What payment methods are accepted for W25Q256JVFIQ TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q256JVFIQ TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q256JVFIQ TR?
W25Q256JVFIQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q256JVFIQ 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 W25Q256JVFIQ TR?
For technical support, including W25Q256JVFIQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q256JVFIQ TR requirements.
6.How does Aetrix verify that W25Q256JVFIQ TR is sourced from the original manufacturer or authorized distributors?
All W25Q256JVFIQ 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 W25Q256JVFIQ TR meets industry standards.
7.What is the process for return or replacement of W25Q256JVFIQ TR?
All W25Q256JVFIQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q256JVFIQ 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 W25Q256JVFIQ TR part is unused and in its original packaging.
Return procedure for W25Q256JVFIQ TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q256JVFIQ 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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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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24LC01BT-I/SN
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24AA02UIDT-I/OT
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AT24C08C-STUM-T
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