My Inquiry
My Account
Winbond Electronics Corporation W25Q256FVFIG TR
- Part No.:
- W25Q256FVFIG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
W25Q256FVFIG TR.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,567
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
W25Q256FVFIG TR from Winbond is a 256M-bit (32MB) serial NOR flash memory supporting Standard/Dual/Quad SPI and QPI interfaces, organized into 131,072 × 256-byte pages with uniform 4KB sector erase capability. It operates from 2.7V to 3.6V, draws 4mA active current and 1µA in power-down mode, and targets code storage, XIP execution, and firmware update in space-constrained embedded systems.
For engineers reviewing the W25Q256FVFIG TR datasheet, W25Q256FVFIG TR pinout, W25Q256FVFIG TR application, or W25Q256FVFIG TR equivalent, key selection criteria include 104MHz SPI clock support, Quad Enable (QE) bit configuration for IO2/IO3 remapping, 4-byte addressing mode compatibility, and hardware write protection via /WP and /HOLD pins.
Technical Context
The W25Q256FVFIG TR implements a flexible SPI-compatible command set with dual- and quad-I/O modes enabled only when the non-volatile Quad Enable (QE) bit in Status Register-2 is set. Its architecture supports both 3-byte and 4-byte address modes, with dedicated instructions (B7h/E9h) to enter/exit 4-byte mode and continuous read with wrap for efficient XIP operation.
It integrates three 256-byte one-time-programmable (OTP) security registers, JEDEC-standard manufacturer/device ID (90h/9Fh), SFDP register (5Ah), and 64-bit unique serial number (4Bh). Write protection combines volatile/non-volatile status bits (BP3–BP0, TB, CMP, SRP0/SRP1), hardware pins (/WP, /HOLD), and individual sector lock commands (36h/39h).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 M-bit (32 MB), enabling full firmware image storage for mid-tier microcontrollers |
| Interface Modes | Standard SPI, Dual I/O, Quad I/O, and QPI - requires QE bit set for Quad I/O pin remapping |
| Max Clock Frequency | 104 MHz SPI; 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 - supports fine-grained firmware partitioning |
| Write Endurance | 100,000 program/erase cycles per sector - suitable for field-updatable bootloaders and parameter storage |
| Data Retention | 20 years at +25°C - meets long-life industrial and automotive control module requirements |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic families without level shifting |
| Operating Temp | −40°C to +85°C - qualified for extended temperature industrial applications |
Pinout & Package
W25Q256FVFIG TR is supplied in an 8-pad WSON 8×6-mm package (Package Code E), with exposed pad for thermal dissipation and RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable; high-impedance DO during deselect; required high-to-low transition after power-up to accept instructions |
| DO (IO1) | Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; bidirectional in Dual/Quad SPI; used for device ID and status reads |
| /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware lock for status register when QE=0; becomes IO2 in Quad I/O mode (QE=1) |
| GND | Ground Reference | Primary return path for all I/O and core logic; must be low-inductance connection for signal integrity |
| DI (IO0) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; bidirectional in Dual/Quad SPI; carries instructions, addresses, and program data |
| CLK | Serial Clock Input | Synchronizes all SPI transfers on rising edge; timing-critical path requiring controlled impedance routing |
| /HOLD or /RESET (IO3) | Hold/Reset Input / Bidirectional I/O | Pauses ongoing SPI transaction when low (QE=0); becomes IO3 in Quad I/O mode (QE=1); reset function available only on SOIC-16 |
| VCC | Power Supply | 2.7–3.6 V supply; decoupling capacitor (0.1 µF) required within 5 mm of pin for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead to 2 clocks per command, enabling true execute-in-place (XIP) with minimal latency |
| Erase/Program Suspend & Resume | Allows background interrupt servicing during long erase operations - critical for real-time OS environments |
| Individual Sector Lock (36h/39h) | Enables per-sector write protection independent of BP bits - supports secure bootloader + application separation |
| 64-bit Unique Serial Number | Provides hardware-rooted device identity for firmware binding, anti-cloning, and secure provisioning |
| Three 256-byte Security Registers | OTP-locked storage for cryptographic keys or calibration data - immune to accidental overwrite or field reprogramming |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable Quad I/O interface for deterministic boot timing and runtime code fetch. Use Value: 4KB sector granularity enables atomic firmware updates without disrupting operational logic; 20-year retention ensures lifetime reliability without field replacement. | Use Scenario: Holding boot code and safety-critical sensor fusion algorithms in advanced driver-assistance systems. IC Role / Device Role / Timing Role: Secure, fast-read boot memory interfaced to ARM Cortex-R5/R7 processors via Quad SPI with hardware write protection. Use Value: /WP pin and BP bits prevent unauthorized modification of boot code; 104MHz clock supports sub-100ms cold boot time requirements. |
| Medical Imaging Device Configuration | Smart Energy Meter Firmware |
Use Scenario: Storing calibration tables, user interface assets, and regulatory-compliant firmware versions in portable ultrasound equipment. IC Role / Device Role / Timing Role: Parameter and asset storage with individual sector lock (36h) to isolate calibration data from application updates. Use Value: Three OTP security registers store device-specific calibration keys; 64-bit unique ID enables traceability across FDA-regulated production batches. | Use Scenario: Hosting metering firmware, tariff tables, and communication stack binaries in ANSI C12.22-compliant smart electricity meters. IC Role / Device Role / Timing Role: Field-upgradable firmware storage with hardware-based write protection and 4-byte addressing for >16MB address space readiness. Use Value: Erase suspend/resume allows seamless over-the-air updates during active metering cycles; −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 and SOIC-16/WSON-8 packages; supports DTR (Double Transfer Rate) mode; no QPI support | Lacks QPI instruction set and 64-bit UID; uses different security register structure | Choose for legacy SPI-only designs where QPI/XIP is unnecessary and DTR timing margin is critical |
| S25FL256SAGMFV001 | 256Mb Cypress (Infineon) device; supports octal DTR mode; includes built-in ECC and configurable reset polarity | Higher pin count (16-pin SOIC); different status register layout and security model; no /HOLD pin in WSON | Prefer when system-level ECC correction or configurable reset behavior is required, and board layout accommodates larger footprint |
Compared with MX25L25645GMI-10G and S25FL256SAGMFV001, the W25Q256FVFIG TR delivers superior XIP performance via QPI and integrated 64-bit UID for device authentication, while maintaining pin compatibility in WSON-8 and lower active power consumption - making it optimal for compact, secure, real-time embedded systems.
Availability
W25Q256FVFIG TR is available at Aetrix Electronics and suitable for industrial automation, automotive electronics, and medical device applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for W25Q256FVFIG 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 DRAM, mobile DRAM, and serial flash memory solutions since 1987.
The W25Q series is designed for high-performance, low-power embedded systems requiring reliable code storage, XIP execution, and robust security features - targeting IoT edge nodes, automotive ECUs, and industrial controllers.
FAQ
What is the package type and lead-free status of W25Q256FVFIG TR?
W25Q256FVFIG TR is packaged in an 8-pad WSON 8×6-mm body with exposed thermal pad and matte tin (Sn) finish. It is RoHS-compliant and lead-free per JEDEC J-STD-609, with MSL-3 moisture sensitivity level and reflow peak temperature rated at 260°C.
Does W25Q256FVFIG TR support 4-byte addressing, and how is it enabled?
Yes, W25Q256FVFIG TR supports 4-byte addressing mode via the Enter 4-Byte Address Mode instruction (B7h). Once enabled, all subsequent read/write/erase commands use 32-bit addresses. The mode persists until Exit 4-Byte Address Mode (E9h) is issued or power is cycled.
How does the Quad Enable (QE) bit affect pin functionality on W25Q256FVFIG TR?
The QE bit (bit 1 of Status Register-2) controls whether /WP and /HOLD pins function as hardware controls or become IO2 and IO3. When QE=0, /WP and /HOLD operate normally; when QE=1, they are remapped to bidirectional I/Os for Quad SPI operation - requiring software configuration before switching modes.
Can W25Q256FVFIG TR be used for execute-in-place (XIP) applications?
Yes, W25Q256FVFIG TR supports true XIP via its Continuous Read Mode and Quad Peripheral Interface (QPI), which reduces instruction overhead to two clocks. Combined with 104MHz clock support and fast read quad I/O (EBh/ECh), it delivers sustained bandwidth sufficient for direct CPU code execution without local RAM buffering.
What security mechanisms does W25Q256FVFIG TR provide beyond standard write protection?
W25Q256FVFIG TR provides layered security: hardware /WP pin lock, volatile/non-volatile status register bits (BP, TB, CMP, SRP), individual sector lock/unlock (36h/39h), global lock (7Eh/98h), three 256-byte OTP security registers, and a factory-programmed 64-bit unique ID - enabling secure boot, firmware attestation, and device binding.
W25Q256FVFIG 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:
- Discontinued at Digi-Key
- 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, 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:
- 16-SOIC
W25Q256FVFIG TR FAQ
1.How can I place an order for W25Q256FVFIG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q256FVFIG 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 W25Q256FVFIG TR reliable?
The price and inventory of W25Q256FVFIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q256FVFIG TR is usually 5 days.
3.What payment methods are accepted for W25Q256FVFIG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q256FVFIG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q256FVFIG TR?
W25Q256FVFIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q256FVFIG 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 W25Q256FVFIG TR?
For technical support, including W25Q256FVFIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q256FVFIG TR requirements.
6.How does Aetrix verify that W25Q256FVFIG TR is sourced from the original manufacturer or authorized distributors?
All W25Q256FVFIG 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 W25Q256FVFIG TR meets industry standards.
7.What is the process for return or replacement of W25Q256FVFIG TR?
All W25Q256FVFIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q256FVFIG 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 W25Q256FVFIG TR part is unused and in its original packaging.
Return procedure for W25Q256FVFIG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q256FVFIG TR Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
