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Winbond Electronics Corporation W25Q256JWPIM TR
- Part No.:
- W25Q256JWPIM TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
W25Q256JWPIM TR.pdf
- Description:
- IC FLASH 256MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,145
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Product details
Overview
W25Q256JWPIM TR from Winbond is a 1.8V, 256M-bit serial flash memory supporting Dual/Quad SPI, QPI, and DTR read modes with 133MHz Quad I/O clock, 4KB uniform sector architecture, and hardware write protection via /WP and /HOLD pins. It delivers up to 66MB/s read throughput and is used for XIP code execution, firmware storage, and parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q256JWPIM TR datasheet, W25Q256JWPIM TR pinout, W25Q256JWPIM TR application, or W25Q256JWPIM TR equivalent, key selection factors include 1.7–1.95V supply compatibility, 4-byte addressing support, JEDEC SFDP register compliance, 64-bit unique ID, and configurable output drive strength (DRV1/DRV0).
Technical Context
The W25Q256JWPIM TR implements a flexible SPI-compatible interface with mode-selectable operation: Standard (4-wire), Dual (3-wire), Quad (4-wire I/O), and QPI (8-wire) protocols, all supporting both 3- and 4-byte addressing. Its internal architecture includes 131,072 × 256-byte pages, 8,192 erasable 4KB sectors, and 512 erasable 64KB blocks.
It integrates volatile/non-volatile status registers (SR1–SR3) controlling Quad Enable (QE), Block Protect (BP0–BP3), Top/Bottom protect (TB), Complement Protect (CMP), and Output Driver Strength (DRV1/DRV0). The /RESET pin is dedicated and functional only in SOIC and TFBGA packages-not in WSON P/E variants-while /HOLD and /WP are multiplexed as IO2/IO3 in Quad mode when QE=1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 256 M-bit (32 MB), organized as 131,072 × 256-byte pages |
| Supply Voltage | 1.7 V to 1.95 V - enables low-power operation in battery-backed or energy-sensitive designs |
| Max Clock Frequency | 133 MHz Quad I/O - supports 532 Mbps effective data rate using Fast Read Quad I/O (6Bh/6Ch) |
| Erase Granularity | 4 KB sectors, 32 KB blocks, 64 KB blocks - allows fine-grained firmware partitioning and OTA update safety |
| Data Retention | 20+ years - ensures long-term reliability for industrial and automotive firmware storage |
| Endurance | 100,000 program/erase cycles - suitable for frequent configuration or logging use cases |
| Interface Protocols | Standard/Dual/Quad SPI, QPI, DTR - provides backward compatibility and bandwidth scalability across host MCU generations |
Pinout & Package
W25Q256JWPIM TR uses the 8-pad WSON 6×5-mm package (Package Code P), with exposed thermal pad. Pin functions are defined per JEDEC-standard SPI/QPI protocol mapping and depend on operational mode (e.g., /WP and /HOLD become IO2/IO3 when Quad Enable bit is set).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable; high-impedance DO/IOs when deasserted; required high-to-low transition after power-up before instruction acceptance |
| DI (IO0) | Serial Data Input / Bidirectional I/O0 | Input for Standard/Dual SPI; bidirectional in Quad/QPI; carries instructions, addresses, and data on CLK rising edge |
| DO (IO1) | Serial Data Output / Bidirectional I/O1 | Output for Standard SPI; bidirectional in Dual/Quad/QPI; returns data/status on CLK falling edge |
| /WP (IO2) | Write Protect Input / Bidirectional I/O2 | Hardware lock for Status Register when QE=0; becomes IO2 in Quad mode (QE=1); active-low |
| GND | Ground Reference | Primary return path for VCC and signal currents; must be low-impedance for timing integrity and noise immunity |
| VCC | Power Supply | 1.7–1.95 V core supply; decoupling capacitor required per datasheet layout guidelines |
| /HOLD (IO3) | Hold Input / Bidirectional I/O3 | Pauses ongoing SPI transfer when asserted low; becomes IO3 in Quad mode (QE=1); not available in DTR-only contexts |
| CLK | Serial Clock Input | Master-generated clock driving all SPI transactions; timing-critical; requires controlled impedance routing |
Key Features
| Feature | Design Value |
|---|---|
| DTR (Double Transfer Rate) Read Support | Enables two data bits per clock edge in DTR mode (e.g., 0Dh/BDh/EDh), doubling effective throughput without increasing clock frequency |
| JEDEC SFDP Register | Provides standardized, host-readable parameter table for automatic configuration of address mode, timing, and erase behavior |
| 64-Bit Unique Serial Number | Factory-programmed per-device ID enabling secure firmware binding, device authentication, and traceability in production |
| Three 256-Byte Security Registers | OTP-lockable regions for storing cryptographic keys, calibration data, or license tokens with hardware-enforced write protection |
| Program/Erase Suspend & Resume | Allows interruption of long erase/program operations to service higher-priority reads, improving real-time system responsiveness |
| Volatile & Non-Volatile Status Bits | Configurable protection (BPx, TB, CMP, SRP) can be set once (non-volatile) or reset on power cycle (volatile) for flexible field updates |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Image |
|---|---|
Use Scenario: Storing boot firmware and configuration parameters in programmable logic controllers operating in extended temperature environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP-capable Quad SPI interface enabling fast startup and deterministic execution latency. Use Value: 4KB sector granularity allows atomic firmware patching; 20-year data retention ensures multi-decade field deployment without refresh. |
Use Scenario: Hosting boot images and sensor calibration data for camera/radar modules requiring AEC-Q100-compliant components. IC Role / Device Role / Timing Role: Secure, high-reliability flash memory supporting dual-image fail-safe boot and encrypted firmware loading via security registers. Use Value: 64-bit unique ID enables per-unit cryptographic binding; hardware write protection prevents accidental corruption during over-the-air updates. |
| Medical IoT Sensor Node | Consumer Smart Home Hub |
Use Scenario: Logging patient vital sign history and storing regulatory-compliant device calibration profiles in battery-powered portable diagnostics equipment. IC Role / Device Role / Timing Role: Low-power (1 µA typical standby) flash memory with sector-level erase for efficient cyclic buffer management. Use Value: 1.7–1.95 V operation extends battery life; 100K endurance supports daily logging over 27 years. |
Use Scenario: Holding Wi-Fi stack binaries, voice assistant models, and user preference data in always-on home automation gateways. IC Role / Device Role / Timing Role: High-throughput Quad I/O flash enabling rapid firmware load and background OTA update staging. Use Value: 66 MB/s read bypass rate reduces boot time; SFDP register auto-configures host driver for seamless version migration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L25673EZN-10G | 3V supply (2.7–3.6V), no DTR support, 104MHz max Quad SPI clock, lacks 64-bit UID and security registers | Suitable for legacy 3V systems without DTR or security requirements; not drop-in due to voltage and feature mismatch | Select only if migrating from existing Macronix-based 3V designs and DTR/security features are unused |
| IS25LP256D-RBLE | 1.8V supply, supports DTR and QPI, but limited to 80MHz Quad SPI clock and no OTP security registers | Acceptable for cost-sensitive consumer applications where 133MHz bandwidth and cryptographic key storage are unnecessary | Prefer when BOM cost is critical and full W25Q256JWPIM TR performance/security is over-specified |
Compared with MX25L25673EZN-10G and IS25LP256D-RBLE, the W25Q256JWPIM TR uniquely combines 1.8V ultra-low-power operation, 133MHz DTR-enabled throughput, factory-programmed UID, and OTP-secured registers-making it optimal for next-generation secure, battery-efficient, and high-bandwidth embedded firmware storage.
Availability
W25Q256JWPIM TR is available at Aetrix Electronics and suitable for industrial control, automotive ADAS, medical diagnostics, and smart home gateway applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for W25Q256JWPIM 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 memory solutions, including NOR/NAND flash, RAM, and mobile DRAM, serving industrial, automotive, and communications markets since 1987.
The W25Q series targets high-performance, low-voltage embedded systems requiring robust code storage, secure firmware updates, and flexible SPI protocol support-designed specifically for XIP, OTA, and safety-critical boot applications.
FAQ
What is the package type and footprint of W25Q256JWPIM TR?
W25Q256JWPIM TR uses an 8-pad WSON (Wafer-Level Small Outline No-lead) package measuring 6 mm × 5 mm with an exposed thermal pad. Its pinout matches the standard SPI/QPI assignment for /CS, CLK, DI/IO0, DO/IO1, /WP/IO2, /HOLD/IO3, VCC, and GND. This compact footprint supports high-density PCB layouts in space-constrained applications such as wearables and edge sensors.
Does W25Q256JWPIM TR support 4-byte addressing, and how is it enabled?
Yes, W25Q256JWPIM TR supports both 3-byte and 4-byte addressing modes. 4-byte mode is enabled by issuing the Enter 4-Byte Address Mode instruction (B7h); it remains active until Exit 4-Byte Address Mode (E9h) is sent or power is cycled. The ADP bit in Status Register-1 determines power-up default mode, and ADS reflects current mode status-critical for host driver initialization.
How does the Quad Enable (QE) bit affect pin functionality in W25Q256JWPIM TR?
In W25Q256JWPIM TR, the Quad Enable (QE) bit-located in Status Register-2-must be set to '1' to activate Quad SPI mode. When QE=1, the /WP pin becomes IO2 and /HOLD becomes IO3, disabling their hardware protection functions. This reconfiguration is non-volatile if written to non-volatile bits, ensuring consistent behavior across power cycles unless explicitly cleared.
What security features are implemented in W25Q256JWPIM TR beyond basic write protection?
W25Q256JWPIM TR includes three 256-byte OTP-lockable security registers, a 64-bit factory-unique serial number, JEDEC SFDP register for standardized parameter discovery, and programmable block/sector locking (individual or global). These features enable cryptographic key storage, device identity binding, and tamper-resistant firmware partitioning-extending protection far beyond simple /WP pin assertion.
Is hardware reset (/RESET) available on W25Q256JWPIM TR, and which packages support it?
No, W25Q256JWPIM TR does not include a dedicated /RESET pin. The part number suffix "IM" denotes the 8-pad WSON 6×5-mm package (Code P), which omits /RESET. Dedicated hardware reset is only available in SOIC-16 (F) and TFBGA-24 (B/C) variants. For W25Q256JWPIM TR, system-level reset must be handled via software commands (66h/99h) or power cycling.
W25Q256JWPIM TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-WDFN 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, QPI, DTR
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- 6 ns
- Voltage - Supply:
- 1.7V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (6x5)
W25Q256JWPIM TR FAQ
1.How can I place an order for W25Q256JWPIM TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q256JWPIM 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 W25Q256JWPIM TR reliable?
The price and inventory of W25Q256JWPIM TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q256JWPIM TR is usually 5 days.
3.What payment methods are accepted for W25Q256JWPIM TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q256JWPIM TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q256JWPIM TR?
W25Q256JWPIM TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q256JWPIM 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 W25Q256JWPIM TR?
For technical support, including W25Q256JWPIM TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q256JWPIM TR requirements.
6.How does Aetrix verify that W25Q256JWPIM TR is sourced from the original manufacturer or authorized distributors?
All W25Q256JWPIM 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 W25Q256JWPIM TR meets industry standards.
7.What is the process for return or replacement of W25Q256JWPIM TR?
All W25Q256JWPIM TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q256JWPIM 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 W25Q256JWPIM TR part is unused and in its original packaging.
Return procedure for W25Q256JWPIM TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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