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Winbond Electronics Corporation W25Q256FVCIG TR
- Part No.:
- W25Q256FVCIG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
W25Q256FVCIG TR.pdf
- Description:
- IC FLASH 256MBIT SPI 24TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,449
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Product details
Overview
W25Q256FVCIG TR from Winbond is a 256M-bit (32MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces, organized into 131,072 × 256-byte pages with 4KB uniform sector erase granularity, operating from 2.7V–3.6V, and rated for -40°C to +85°C industrial temperature range - used for code storage, XIP execution, and firmware parameter retention in embedded microcontrollers.
For engineers reviewing the W25Q256FVCIG TR datasheet, W25Q256FVCIG TR pinout, W25Q256FVCIG TR application, or W25Q256FVCIG TR equivalent, key selection criteria include Quad I/O timing at 104MHz, JEDEC-compliant SFDP register support, 64-bit unique ID, programmable security registers, and hardware write protection via /WP and /HOLD pins.
Technical Context
The W25Q256FVCIG TR implements a flexible SPI-compatible command set with dual- and quad-I/O modes enabled by non-volatile QE bit in Status Register-2; it supports both 3-byte and 4-byte addressing, with dedicated /RESET pin only on SOIC-16 package and shared /HOLD or /RESET function on IO3 in 8-pin packages depending on QE and HOLD/RST bit settings.
Its architecture includes three 256-byte one-time-programmable (OTP) security registers, block-level memory protection via BP0–BP3, TB, CMP, and SRP bits, and erase/program suspend/resume capability - enabling robust firmware integrity management in resource-constrained systems without external logic.
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 with single CLK line |
| Max Clock Frequency | 104 MHz for Standard/Dual/Quad SPI; enables 416 MB/s effective throughput in Quad I/O mode |
| Erase Granularity | Uniform 4 KB sectors (8,192 total), plus 32 KB and 64 KB blocks - allows fine-grained firmware partitioning |
| Write Endurance | ≥100,000 program/erase cycles per sector - suitable for field-upgradable firmware storage |
| Data Retention | ≥20 years at +25°C - ensures long-term reliability in unpowered storage applications |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic domains and low-power embedded systems |
| Operating Temp | -40°C to +85°C - qualified for industrial-grade operation without derating |
Pinout & Package
W25Q256FVCIG TR is packaged in an 8-pad WSON 8×6 mm (Package Code E) with exposed pad thermal enhancement. Pin functions are defined per JEDEC-standard SPI interface with multiplexed I/O roles dependent on instruction mode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable signal; places DO/IO lines in high-impedance state when deasserted |
| DO (IO1) | Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional in Dual/Quad modes for data readback |
| /WP (IO2) | Write Protect Input / I/O2 | Hardware lock for status register writes; repurposed as IO2 when Quad Enable (QE=1) is set |
| GND | Ground Reference | Primary return path for all digital and analog circuitry; connects to exposed pad for thermal dissipation |
| DI (IO0) | Data Input / I/O0 | Unidirectional input in Standard SPI; bidirectional in Dual/Quad modes for instruction/address/data loading |
| CLK | Serial Clock Input | Master-synchronized timing reference for all SPI/QPI operations; edge-triggered on rising/falling edges per mode |
| /HOLD or /RESET (IO3) | Hold or Reset Input / I/O3 | Pauses ongoing SPI transaction when active low; functions as /RESET only when QE=0 and HOLD/RST bit = 1 |
| VCC | Power Supply | Single 2.7–3.6 V supply powering core logic, charge pumps, and I/O buffers |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead to 2 clocks per command, enabling true XIP with minimal latency penalty |
| Continuous Read Mode | Supports 8/16/32/64-byte wrap bursts with only 8 clock cycles to address first byte - optimizes sequential code fetch |
| Security Registers | Three 256-byte OTP registers with individual lock bits - store cryptographic keys or calibration data immune to reprogramming |
| JEDEC SFDP Support | Standardized, discoverable parameter table accessible via 5Ah command - enables automatic driver configuration in bootloaders |
| Unique 64-bit ID | Factory-programmed serial number readable via 4Bh command - enables device authentication and traceability in production |
| Erase/Program Suspend | Halts background erase or program operations mid-execution to service urgent reads - improves real-time system responsiveness |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Image |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Non-volatile code storage and XIP-capable execution source for ARM Cortex-M7-based control CPUs. Use Value: 4KB sector granularity enables independent update of safety-critical control modules without erasing full firmware image. | Use Scenario: Holding boot firmware and sensor calibration data for radar/EPS ECUs requiring AEC-Q100 compliance and secure boot verification. IC Role / Device Role / Timing Role: Trusted firmware repository with 64-bit unique ID and OTP security registers for cryptographic signature validation. Use Value: JEDEC SFDP register allows bootloader to auto-detect memory geometry and timing parameters - reducing porting effort across vehicle platforms. |
| Medical Imaging System Configuration | Smart Energy Meter Firmware |
Use Scenario: Retaining calibration coefficients, user preferences, and diagnostic logs in portable ultrasound devices with strict data integrity requirements. IC Role / Device Role / Timing Role: Parameter and log storage with hardware write protection (/WP pin) and sector-lock capability to prevent accidental overwrite. Use Value: Erase/program suspend/resume allows concurrent logging during image acquisition - eliminating data loss during long exposures. | Use Scenario: Hosting firmware updates and tariff tables in ANSI C12.22-compliant smart meters deployed in utility grids with remote OTA capability. IC Role / Device Role / Timing Role: Field-upgradable code storage with ≥100,000 erase cycles and 20-year data retention under extended temperature cycling. Use Value: Dual/Quad SPI interface delivers >50 MB/s sustained read throughput - accelerating firmware validation and decompression during OTA patching. |
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 |
|---|---|---|---|
| MX25L25635FMI-10G | Same density and 3.3 V supply, but supports only Standard/Dual SPI (no QPI); lacks SFDP register and unique ID | Lower-cost option where XIP performance and auto-configuration are not required | Select when QPI, SFDP, or device identity features are unnecessary and BOM cost is primary constraint |
| S25FL256SAGMFIR00 | Includes HyperBus interface (not SPI-compatible), higher pin count (16-pin SOIC), and integrated ECC - no direct pin or command compatibility | Targeted at high-reliability automotive applications requiring built-in error correction | Choose only if migrating to Cypress/Infineon ecosystem and HyperBus controller is available |
Compared with MX25L25635FMI-10G, W25Q256FVCIG TR delivers superior XIP efficiency via QPI and standardized configurability via SFDP; versus S25FL256SAGMFIR00, it offers SPI pin/command compatibility and lower integration complexity, though without on-die ECC.
Availability
W25Q256FVCIG TR is available at Aetrix Electronics and suitable for industrial control, automotive infotainment, medical diagnostics, and smart metering applications requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for W25Q256FVCIG 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 for embedded and industrial markets.
The W25Q series was designed specifically for high-performance, low-power code storage and execute-in-place (XIP) applications in space-constrained microcontroller-based systems.
FAQ
What is the package type and lead count of the W25Q256FVCIG TR?
The W25Q256FVCIG TR uses an 8-pad WSON (8×6 mm) package with exposed thermal pad (Package Code E). It has eight functional terminals: /CS, DO (IO1), /WP (IO2), GND, DI (IO0), CLK, /HOLD or /RESET (IO3), and VCC - no additional pins or NCs. This compact footprint supports high-density PCB layouts while maintaining thermal performance.
Does the W25Q256FVCIG TR support 4-byte addressing mode, and how is it enabled?
Yes, the W25Q256FVCIG TR supports both 3-byte and 4-byte addressing modes. The 4-byte mode is enabled via the Enter 4-Byte Address Mode instruction (B7h), which sets the ADP bit in the Status Register. Once enabled, all subsequent read/write/erase commands use 32-bit addresses. The mode persists after power cycle if ADP is non-volatile (default configuration).
How does the /WP pin function differ between Standard SPI and Quad SPI modes on the W25Q256FVCIG TR?
In Standard SPI mode, the /WP pin provides hardware write protection for status registers when asserted low. In Quad SPI mode (QE=1), the /WP pin is reassigned as IO2 and loses its protection function - status register protection must then be managed exclusively via software-configured BP and SRP bits. This behavior is documented in Section 4.3 and Figure 1a of the datasheet.
Can the W25Q256FVCIG TR be used for Execute-in-Place (XIP) applications, and what features enable this?
Yes, the W25Q256FVCIG TR is explicitly designed for XIP operation. Key enablers include Continuous Read Mode (with ≤8-clock instruction overhead), Quad I/O and QPI interfaces delivering up to 416 MB/s effective bandwidth, and uniform 4KB sector layout allowing selective firmware updates without full chip erase - all confirmed in Sections 1 and 2 of the datasheet.
What security mechanisms does the W25Q256FVCIG TR provide beyond basic write protection?
The W25Q256FVCIG TR provides layered security: three 256-byte OTP security registers with individual lock bits, 64-bit factory-unique ID for device authentication, JEDEC SFDP register for tamper-resistant parameter discovery, and configurable memory locking (individual sector/block, top/bottom, complement) via status register bits - all detailed in Sections 2, 7, and 8.2 of the datasheet.
W25Q256FVCIG 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)
W25Q256FVCIG TR FAQ
1.How can I place an order for W25Q256FVCIG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q256FVCIG 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 W25Q256FVCIG TR reliable?
The price and inventory of W25Q256FVCIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q256FVCIG TR is usually 5 days.
3.What payment methods are accepted for W25Q256FVCIG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q256FVCIG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q256FVCIG TR?
W25Q256FVCIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q256FVCIG 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 W25Q256FVCIG TR?
For technical support, including W25Q256FVCIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q256FVCIG TR requirements.
6.How does Aetrix verify that W25Q256FVCIG TR is sourced from the original manufacturer or authorized distributors?
All W25Q256FVCIG 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 W25Q256FVCIG TR meets industry standards.
7.What is the process for return or replacement of W25Q256FVCIG TR?
All W25Q256FVCIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q256FVCIG 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 W25Q256FVCIG TR part is unused and in its original packaging.
Return procedure for W25Q256FVCIG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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