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Winbond Electronics Corporation W25Q257JVFIQ
- Part No.:
- W25Q257JVFIQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
W25Q257JVFIQ.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,998
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Product details
Overview
W25Q257JVFIQ from Winbond is a 256 M-bit (32 MB) serial NOR flash memory with Dual/Quad SPI interface, organized as 131,072 × 256-byte pages, supporting 4 KB sector, 32 KB block, 64 KB block and chip erase operations. It operates on a single 2.7–3.6 V supply, delivers up to 133 MHz SPI clock rate (532 MHz equivalent Quad I/O), and targets code execution (XIP), firmware storage, and parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q257JVFIQ datasheet, W25Q257JVFIQ pinout, W25Q257JVFIQ application, or W25Q257JVFIQ equivalent, key selection factors include 4-byte addressing mode support, Quad Enable (QE) bit configuration, /HOLD vs /RESET pin availability per package, and JEDEC SFDP register compliance for automatic configuration discovery.
Technical Context
The W25Q257JVFIQ implements a flexible SPI command set supporting Standard (DI/DO), Dual (IO0/IO1), and Quad (IO0–IO3) I/O modes, with hardware-selectable 3- or 4-byte addressing via non-volatile ADP bit and status-indicating ADS bit. Its architecture includes three 256-byte security registers with OTP locks, volatile/non-volatile status register bits (BP0–BP3, TB, CMP, SRP, QE), and erase/program suspend/resume capability.
It integrates dedicated high-voltage generators for internal program/erase operations, supports SPI modes 0 and 3, and features power-down current as low as 1 µA (typ). The device uses a uniform 4 KB sector layout (8,192 sectors) and supports continuous read with wrap burst for efficient XIP operation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 M-bit (32 MB); enables full firmware image storage for mid-tier microcontrollers without external memory expansion. |
| SPI Clock Rate | Up to 133 MHz; achieves 532 MB/s effective bandwidth in Quad I/O Fast Read mode for rapid boot code loading. |
| Addressing Mode | Configurable 3- or 4-byte mode via ADP bit; 4-byte mode enabled by default (ADP=1) for full 256 M-bit linear addressing without extended register overhead. |
| Erase Granularity | Uniform 4 KB sectors (8,192 total); allows fine-grained firmware update partitioning and data logging without disturbing adjacent code regions. |
| Endurance & Retention | 100,000 program/erase cycles per sector; >20-year data retention at +85°C; suitable for field-upgradable industrial controllers. |
| Security Features | Three 256-byte OTP-lockable security registers; 64-bit unique ID; SFDP register for standardized parameter discovery; hardware write-protect via /WP pin. |
| Supply Voltage | 2.7–3.6 V single supply; compatible with 3.3 V logic domains and battery-backed systems with brown-out tolerance. |
Pinout & Package
W25Q257JVFIQ is supplied in an 8-pad WSON 8×6 mm package (Package Code E), with no dedicated /RESET pin - the /HOLD pin functions as IO3 in Quad mode and serves dual-purpose in Standard/Dual mode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable; must transition high→low after power-up before first instruction; controls DO high-impedance state. |
| DO (IO1) | Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; bidirectional IO1 in Dual/Quad modes; used for status/data reads on falling CLK edge. |
| /WP (IO2) | Write Protect Input / Bidirectional I/O | Active-low hardware lock for status register; becomes IO2 when Quad Enable (QE=1) is set. |
| GND | Ground Reference | Primary return path for all I/O and core logic; requires low-impedance connection to system ground plane. |
| DI (IO0) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; bidirectional IO0 in Dual/Quad modes; accepts instructions/addresses on rising CLK edge. |
| CLK | Serial Clock Input | Master-generated timing signal; supports SPI modes 0 and 3; determines maximum throughput and setup/hold timing margins. |
| /HOLD or /RESET (IO3) | Hold Input / Quad I/O Pin | Pauses ongoing SPI transfer when low (Standard/Dual); becomes IO3 in Quad mode (QE=1); no dedicated hardware reset in this package. |
| VCC | Power Supply | 2.7–3.6 V core and I/O supply; requires local 100 nF ceramic decoupling capacitor placed near pin. |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI XIP Support | Enables direct code execution from flash via Fast Read Quad I/O (EBh/ECh), eliminating RAM copy latency and reducing BOM cost. |
| Erase/Program Suspend | Allows background erase or program to be paused (75h) and resumed (7Ah), enabling real-time interrupt handling without data corruption risk. |
| JEDEC SFDP Register | Provides standardized, read-only parameter table (5Ah) for automatic driver configuration of timing, voltage, and command sets across host platforms. |
| Individual Block Lock | Per-sector lock/unlock (36h/39h) and global lock (7Eh/98h) allow secure firmware partitioning-e.g., locking bootloader region while permitting application updates. |
| Output Driver Strength Control | Volatile/non-volatile DRV1/DRV0 bits adjust slew rate and drive strength to match PCB trace impedance and reduce EMI in high-speed layouts. |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
Use Scenario: Storing and executing boot firmware and safety-critical control logic in programmable logic controllers operating continuously in harsh environments. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP capability; provides deterministic 133 MHz SPI access to avoid boot delays from RAM copy. Use Value: 100K endurance and 20-year retention ensure firmware integrity over 15+ year product lifecycles without field replacement. | Use Scenario: Hosting boot loader and OS kernel for head-unit SoCs requiring fast, secure startup and OTA update resilience. IC Role / Device Role / Timing Role: Secure boot memory with 64-bit unique ID and OTP-locked security registers to prevent unauthorized firmware injection. Use Value: Quad I/O bandwidth (532 MB/s equiv.) reduces boot time by >40% versus standard SPI, meeting automotive <2 s cold-start requirement. |
| Medical Device Configuration Data | Network Router Firmware Image |
Use Scenario: Retaining calibrated sensor offsets, user preferences, and audit logs in portable diagnostic equipment with battery backup. IC Role / Device Role / Timing Role: Parameter storage with hardware write-protection (/WP pin) and sector-level lock (36h) to prevent accidental overwrite during power transitions. Use Value: Uniform 4 KB sectors allow isolated updates to calibration data without erasing therapy algorithms or regulatory certification metadata. | Use Scenario: Storing dual firmware images (active/backup) and configuration tables in enterprise-grade routers requiring zero-downtime upgrades. IC Role / Device Role / Timing Role: High-reliability firmware repository supporting atomic sector erase and suspend/resume for fail-safe image switching. Use Value: Chip erase (C7h) and 64 KB block erase (D8h) enable sub-second firmware rollback, minimizing service interruption during critical patches. |
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 |
|---|---|---|---|
| MX25L25735FMI-10G | 256 M-bit, 104 MHz max SPI clock, SOIC-16 package with dedicated /RESET pin; lacks SFDP register and 4-byte address mode auto-detection. | Preferred where hardware reset reliability is mandatory and host lacks SFDP-aware driver stack. | Select when board layout reserves space for SOIC-16 and system requires guaranteed hardware reset independent of SPI state. |
| S25FL256SAGMFI000 | 256 M-bit, 80 MHz SPI clock, supports HyperBus interface in addition to Quad SPI; includes ECC and configurable latency code not present in W25Q257JVFIQ. | Better suited for high-integrity applications needing error correction and deterministic read latency, e.g., avionics boot loaders. | Choose when ECC coverage and sub-10 ns read latency consistency outweigh higher cost and larger footprint. |
Compared with MX25L25735FMI-10G and S25FL256SAGMFI000, the W25Q257JVFIQ offers superior Quad I/O bandwidth (133 MHz vs 104/80 MHz), native 4-byte addressing with ADP/ADS bits, and JEDEC SFDP compliance-making it optimal for cost-sensitive, high-throughput embedded designs requiring automated configuration and minimal driver porting effort.
Availability
W25Q257JVFIQ is available at Aetrix Electronics and suitable for industrial PLCs, automotive infotainment systems, medical diagnostics, network infrastructure, and IoT edge gateways requiring stable component supply across multi-year production cycles.
Supply support for W25Q257JVFIQ 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 SPI NOR/NAND flash, RAM, and mobile DRAM, serving industrial, communications, and consumer markets since 1987.
The W25Q series is designed for high-performance, space-constrained embedded systems requiring reliable code storage, XIP execution, and robust security-targeting applications from automotive ECUs to smart home hubs.
FAQ
What is the default address mode for W25Q257JVFIQ at power-up?
The W25Q257JVFIQ powers up in 4-byte address mode by default, as indicated by the non-volatile ADP bit (S17) factory-set to 1. This enables full linear addressing of the 256 M-bit array without requiring extended address register writes. The current mode is reflected in the ADS bit (S16) of Status Register-1, readable via instruction 05h.
Does W25Q257JVFIQ support hardware reset, and how is it implemented in the WSON package?
W25Q257JVFIQ does not include a dedicated /RESET pin in the 8-pad WSON 8×6 mm package (FIQ suffix). Instead, reset is performed via software sequence: Enable Reset (66h) followed by Reset Device (99h), which returns the device to its power-on state in ~30 µs. Hardware reset is only available in SOIC-16 and TFBGA packages.
How is Quad SPI mode enabled on W25Q257JVFIQ, and what pin changes occur?
Quad SPI mode is enabled by setting the Quad Enable (QE) bit (bit 1 of Status Register-2) to 1 using instruction 31h. When QE=1, the /WP pin becomes IO2 and the /HOLD pin becomes IO3. These pins then function as bidirectional data lines for Quad I/O commands like Fast Read Quad I/O (EBh), and the /HOLD function is disabled.
What is the purpose of the SFDP register in W25Q257JVFIQ, and how is it accessed?
The SFDP (Serial Flash Discoverable Parameters) register in W25Q257JVFIQ is a standardized 256-byte read-only table (accessed via instruction 5Ah) that describes device geometry, timing parameters, command sets, and feature support. It allows host drivers to auto-configure without hard-coded assumptions, improving portability across flash vendors and densities.
Can W25Q257JVFIQ's security registers be reprogrammed, and what protection mechanisms apply?
W25Q257JVFIQ includes three 256-byte security registers (SR1–SR3) that support one-time-programmable (OTP) locking via LB1–LB3 bits in Status Register-3. Once an LB bit is set, the corresponding register becomes permanently read-only. Programming is done via instruction 42h; erasure requires instruction 44h and is only possible before OTP lock activation.
W25Q257JVFIQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- Packaging:
- Tube
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
W25Q257JVFIQ FAQ
1.How can I place an order for W25Q257JVFIQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q257JVFIQ 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 W25Q257JVFIQ reliable?
The price and inventory of W25Q257JVFIQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q257JVFIQ is usually 5 days.
3.What payment methods are accepted for W25Q257JVFIQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q257JVFIQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q257JVFIQ?
W25Q257JVFIQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q257JVFIQ 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 W25Q257JVFIQ?
For technical support, including W25Q257JVFIQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q257JVFIQ requirements.
6.How does Aetrix verify that W25Q257JVFIQ is sourced from the original manufacturer or authorized distributors?
All W25Q257JVFIQ 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 W25Q257JVFIQ meets industry standards.
7.What is the process for return or replacement of W25Q257JVFIQ?
All W25Q257JVFIQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q257JVFIQ, 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 W25Q257JVFIQ part is unused and in its original packaging.
Return procedure for W25Q257JVFIQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q257JVFIQ Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
Microchip Technology
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AT21CS01-STUM10-T
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AT24C02C-SSHM-T
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24LC01BT-I/OT
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M24C02-FMC6TG
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AT24CS02-SSHM-T
Microchip Technology
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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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