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Winbond Electronics Corporation W25Q256JVMIM TR
- Part No.:
- W25Q256JVMIM TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WLGA Exposed Pad
- Datasheet:
-
W25Q256JVMIM TR.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 8WFLGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,586
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Product details
Overview
W25Q256JVMIM TR from Winbond is a 256M-bit (32MB) serial NOR flash memory IC supporting Dual/Quad SPI, QPI, and DTR read modes with 133MHz clock, 4KB uniform sectors, and industrial temperature range (–40°C to +85°C). It operates on a single 2.7V–3.6V supply, delivers up to 66MB/s continuous data transfer, and enables execute-in-place (XIP) for code storage in microcontroller-based embedded systems.
For engineers reviewing the W25Q256JVMIM TR datasheet, W25Q256JVMIM TR pinout, W25Q256JVMIM TR application, or W25Q256JVMIM TR equivalent, key selection criteria include 4-byte addressing support, Quad Enable (QE) bit configuration, /HOLD or /RESET dual-function pin behavior in 8-pin packages, and JEDEC SFDP register compatibility for automated configuration.
Technical Context
The W25Q256JVMIM TR implements a flexible SPI-compatible interface with hardware-selectable operation modes: Standard (4-wire), Dual I/O (2-data-line), Quad I/O (4-data-line), and QPI (4-wire quad-protocol interface), all supporting Double Transfer Rate (DTR) reads. Its internal architecture includes 131,072 × 256-byte programmable pages, 8,192 erasable 4KB sectors, and 512 erasable 64KB blocks.
Functional control relies on volatile/non-volatile status registers (SR1–SR3) managing Quad Enable (QE), Block Protect (BP0–BP3), Top/Bottom protection (TB), Security Register Lock (LB1–LB3), and Output Driver Strength (DRV0/DRV1). The /HOLD pin doubles as /RESET in 8-pin WFLGA packages depending on QE state and SR configuration.
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/Dual/Quad SPI, QPI, and DTR read - enables XIP and high-throughput firmware loading |
| Max Clock Frequency | 133 MHz SPI clock; supports 266 MHz (Dual I/O) and 532 MHz (Quad I/O) effective data rates |
| Erase Granularity | Uniform 4KB sectors, 32KB blocks, 64KB blocks, and full-chip erase - ideal for parameter + code partitioning |
| Endurance & Retention | 100,000 program/erase cycles per sector; >20-year data retention at 85°C |
| Supply Voltage | 2.7 V to 3.6 V single supply; typical 1 µA power-down current reduces system standby load |
| Operating Temperature | –40°C to +85°C (Industrial Grade), validated for extended thermal cycling in embedded controllers |
Pinout & Package
W25Q256JVMIM TR uses the 8-pad WFLGA 6×5-mm package (Package Code M), with exposed pad for thermal dissipation and space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable; must transition high→low after power-up before instruction acceptance |
| DO (IO1) | Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional in Dual/Quad SPI; requires QE=0 for /HOLD function |
| /WP (IO2) | Write Protect Input / I/O2 | Hardware sector lock when low; repurposed as IO2 in Quad mode (QE=1) |
| GND | Ground Reference | Primary return path for all I/O and core logic; connects to PCB ground plane |
| DI (IO0) | Data Input / I/O0 | Unidirectional input in Standard SPI; bidirectional in Dual/Quad SPI; used for instruction/address entry |
| CLK | Serial Clock Input | Edge-triggered timing source; rising edge for input, falling edge for output in all SPI modes |
| /HOLD or /RESET (IO3) | Hold/Reset Input / I/O3 | Dual-function pin: active-low hold during SPI transactions or hardware reset; disabled in Quad mode (QE=1) |
| VCC | Power Supply | 2.7–3.6 V core and I/O supply; decoupling capacitor required near pin |
Key Features
| Feature | Design Value |
|---|---|
| Quad Enable (QE) Bit | Non-volatile SR2 bit enabling IO2 (/WP) and IO3 (/HOLD) for Quad I/O; determines pin multiplexing behavior |
| Erase/Program Suspend | Allows background execution of host code while flash erase/program is paused - critical for real-time interrupt latency control |
| 64-bit Unique ID | Factory-programmed serial number per device - enables secure firmware binding and anti-cloning in production |
| SFDP Register Support | JEDEC-standard 256-byte Serial Flash Discoverable Parameters table - enables automatic driver initialization without hard-coded timing |
| Security Registers | Three 256-byte OTP-locked regions for cryptographic keys or calibration data - prevents unauthorized readback or overwrite |
Applications
| Boot Code Storage | Firmware Update Partition |
|---|---|
Use Scenario: Storing primary bootloader and application firmware for ARM Cortex-M or RISC-V microcontrollers. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable Quad SPI interface enabling direct CPU execution without RAM copy. Use Value: Reduces BOM cost by eliminating external RAM for boot staging; 133MHz Quad I/O sustains >50MB/s instruction fetch throughput. | Use Scenario: Dedicated 4MB partition for over-the-air (OTA) firmware updates in industrial gateways. IC Role / Device Role / Timing Role: Atomic update storage with sector-level erase isolation - prevents corruption during power loss. Use Value: 4KB uniform sectors allow precise allocation of update payload + rollback image; suspend/resume avoids watchdog timeout during long erase cycles. |
| Configuration & Calibration Data | Secure Key Storage |
Use Scenario: Retaining sensor calibration coefficients, network credentials, and device-specific settings across power cycles. IC Role / Device Role / Timing Role: Parameter storage with hardware write protection via /WP pin and BP bits - prevents accidental overwrite during field operation. Use Value: Top/bottom array protection isolates config sectors from firmware updates; <1µA power-down extends battery life in always-on edge nodes. | Use Scenario: Storing AES-256 keys and certificate chains in medical or automotive ECUs requiring tamper resistance. IC Role / Device Role / Timing Role: Secure non-volatile memory with three 256-byte OTP-locked security registers - prevents readout or modification post-programming. Use Value: LB1–LB3 bits permanently disable read/write access after key provisioning; complements MCU-based crypto accelerators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L25645GMI-10G | 256Mb density, 104MHz max clock, no DTR support, 1.65–2.0V VCC range | Lacks DTR and QPI modes; limited to Standard/Dual SPI - lower bandwidth for XIP | Select when legacy SPI controller lacks DTR/QPI support and voltage rail is 1.8V |
| S25FL256SAGMFI000 | 256Mb density, 133MHz clock, supports DTR but no QPI; Cypress/Infineon portfolio | Missing QPI protocol; SFDP v1.6 vs Winbond's v1.5 - minor register layout variance | Prefer for designs already using Cypress flash drivers and requiring DTR but not QPI protocol flexibility |
Compared with MX25L25645GMI-10G and S25FL256SAGMFI000, the W25Q256JVMIM TR uniquely combines DTR, QPI, and 4-byte addressing in a single 8-pin WFLGA package - enabling highest bandwidth and smallest footprint for next-gen MCU boot and OTA architectures.
Availability
W25Q256JVMIM TR is available at Aetrix Electronics and suitable for industrial control panels, automotive telematics modules, and IoT edge gateways requiring stable component supply, long-term lifecycle assurance, and qualified industrial-grade flash memory.
Supply support for W25Q256JVMIM 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 targets high-performance embedded systems needing reliable, high-speed code storage with advanced security and flexible interface options - optimized for MCU boot, firmware update, and secure parameter retention.
FAQ
What is the package type and pin count of the W25Q256JVMIM TR?
The W25Q256JVMIM TR uses an 8-pad WFLGA (Wafer-Level Fine-Pitch Grid Array) package measuring 6 mm × 5 mm. It has eight terminals: /CS, DO (IO1), /WP (IO2), GND, DI (IO0), CLK, /HOLD or /RESET (IO3), and VCC. This compact footprint supports high-density PCB layouts in space-constrained industrial and automotive modules.
Does the W25Q256JVMIM TR support 4-byte addressing, and how is it enabled?
Yes, the W25Q256JVMIM TR supports both 3-byte and 4-byte addressing modes. 4-byte mode is enabled via the Enter 4-Byte Address Mode instruction (B7h) and disabled with Exit 4-Byte Address Mode (E9h). The ADP bit in Status Register-3 controls power-up default mode - set non-volatile to ensure consistent behavior across resets.
How does the /HOLD pin function differ between Standard SPI and Quad SPI modes on the W25Q256JVMIM TR?
In Standard and Dual SPI modes (QE = 0), the /HOLD pin provides active-low transaction pause functionality. In Quad SPI mode (QE = 1), that same physical pin becomes IO3 and the /HOLD function is disabled. The /HOLD or /RESET dual-role behavior is exclusive to 8-pin packages like the W25Q256JVMIM TR.
What is the purpose of the Quad Enable (QE) bit in the W25Q256JVMIM TR, and where is it located?
The Quad Enable (QE) bit is a non-volatile bit in Status Register-2 (SR2) that activates Quad SPI operation. When QE = 1, the /WP and /HOLD pins become IO2 and IO3, enabling four-data-line transfers. This bit must be set before issuing Quad I/O instructions; failure to do so results in unrecognized commands or bus contention.
Can the W25Q256JVMIM TR be used for execute-in-place (XIP) applications, and what interface mode is recommended?
Yes, the W25Q256JVMIM TR supports true XIP operation using its Continuous Read Mode with Fast Read Quad I/O (6Bh/6Ch) or DTR Quad I/O (EDh/ECh) instructions. Quad SPI mode is recommended for XIP - it delivers up to 532MHz effective bandwidth and minimal instruction overhead, enabling deterministic CPU fetch timing without RAM buffering.
W25Q256JVMIM TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-WLGA Exposed Pad
- Packaging:
- Tape & Reel (TR)
- 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:
- 6 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WFLGA (6x5)
W25Q256JVMIM TR FAQ
1.How can I place an order for W25Q256JVMIM TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q256JVMIM 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 W25Q256JVMIM TR reliable?
The price and inventory of W25Q256JVMIM TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q256JVMIM TR is usually 5 days.
3.What payment methods are accepted for W25Q256JVMIM TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q256JVMIM TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q256JVMIM TR?
W25Q256JVMIM TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q256JVMIM 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 W25Q256JVMIM TR?
For technical support, including W25Q256JVMIM TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q256JVMIM TR requirements.
6.How does Aetrix verify that W25Q256JVMIM TR is sourced from the original manufacturer or authorized distributors?
All W25Q256JVMIM 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 W25Q256JVMIM TR meets industry standards.
7.What is the process for return or replacement of W25Q256JVMIM TR?
All W25Q256JVMIM TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q256JVMIM 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 W25Q256JVMIM TR part is unused and in its original packaging.
Return procedure for W25Q256JVMIM TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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