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Winbond Electronics Corporation W25N02KWTBIU TR
- Part No.:
- W25N02KWTBIU TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
W25N02KWTBIU TR.pdf
- Description:
- IC FLASH 2GBIT SPI/QUAD 24TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,170
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Product details
Overview
W25N02KWTBIU TR from Winbond Electronics is a 2Gb (256MB) serial NAND flash memory IC with SPI interface, 1.8V core voltage, 100MHz clock support, and built-in ECC (4-bit/512B). It serves as high-density nonvolatile storage in space-constrained embedded systems requiring firmware or data logging.
For engineers reviewing the W25N02KWTBIU TR datasheet, W25N02KWTBIU TR pinout, W25N02KWTBIU TR application, or W25N02KWTBIU TR equivalent, key selection criteria include page programming time (≤700μs), block erase time (≤2ms), endurance (100K program/erase cycles), and industrial temperature range (–40°C to +85°C).
Technical Context
This device implements a standard Serial Peripheral Interface (SPI) with quad I/O (QPI) mode support, enabling up to 400MB/s effective throughput via 4-bit data lanes. It uses a 2-plane architecture with 128KB blocks and 2KB pages, supporting internal copy-back and sequential read optimizations.
The integrated 4-bit/512B BCH ECC engine operates transparently during read/write, eliminating host-side correction overhead. Device initialization requires no external reset; power-on reset and command-based wake-up are supported, with deep power-down current ≤2μA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Gb (256 MB) usable capacity after bad-block management and spare area allocation |
| Interface | SPI-compatible with single/dual/quad I/O modes; supports standard 8-pin SOIC-8 package wiring |
| Page Size | 2,048 bytes main area + 64 bytes spare area - matches common filesystem sector alignment |
| Block Size | 128 KB (64 pages per block) - enables efficient wear leveling and garbage collection |
| ECC Strength | 4-bit correction per 512-byte sector - corrects random bit errors without host intervention |
| Endurance | 100,000 program/erase cycles per block - suitable for frequent firmware update or logging use |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded applications without derating |
Pinout & Package
W25N02KWTBIU TR is housed in an 8-pin SOIC (Small Outline Integrated Circuit) package, 208-mil width, with gull-wing leads and RoHS-compliant matte tin plating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 / CS# | Chip Select Input | Active-low enable; must be driven low before SPI clock starts; controls command latching |
| 2 / DO (IO1) | Data Output / I/O 1 | Serial output during standard read; bidirectional in dual/quad mode; high-impedance when CS# high |
| 3 / WP# (IO2) | Write Protect / I/O 2 | Hardware write protection when low; functions as IO2 in quad I/O mode |
| 4 / GND | Ground Reference | Primary return path for VCC and all I/O signals; requires low-impedance PCB connection |
| 5 / DI (IO0) | Data Input / I/O 0 | Serial command/data input in standard mode; bidirectional IO0 in quad mode |
| 6 / CLK | Serial Clock Input | Edge-triggered master clock; supports up to 100 MHz; phase/polarity configurable per mode |
| 7 / HOLD# (IO3) | Hold Input / I/O 3 | Pauses ongoing transfer when low; functions as IO3 in quad I/O mode |
| 8 / VCC | Power Supply | 1.7–1.95V core supply; requires local 1μF ceramic decoupling within 5 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Integrated ECC Engine | 4-bit/512B BCH correction performed on-die - eliminates need for host ECC logic or software overhead |
| Quad I/O Mode | 4-line data bus doubles throughput vs. standard SPI - reduces firmware update time by ~50% at 100MHz |
| Copy-Back Program | Internal page-to-page move without host data transfer - accelerates wear leveling and garbage collection |
| Deep Power-Down | 2 μA max standby current - extends battery life in always-on edge sensor or metering devices |
| Program/Erase Suspend | Allows read access during background erase - enables real-time data retrieval without blocking writes |
Applications
| Firmware Storage | Industrial Data Logging |
|---|---|
|
Use Scenario: Storing bootloader, application firmware, and configuration tables in a programmable logic controller (PLC). IC Role / Device Role: Primary nonvolatile code storage with in-field update capability and error resilience. Use Value: 100K P/E cycles and on-die ECC ensure reliable operation over 10+ years of repeated firmware upgrades in unattended installations. |
Use Scenario: Capturing sensor readings (temperature, pressure, vibration) at 10Hz in a predictive maintenance gateway. IC Role / Device Role: High-endurance cyclic buffer for time-series data with wear-leveling and fast sequential writes. Use Value: 2KB page size and ≤700μs program time enable sustained 1.2MB/s write throughput, minimizing data loss during burst capture. |
| Smart Meter Firmware | Medical Device Configuration |
|
Use Scenario: Holding metrology firmware, tariff tables, and security keys in ANSI C12.22-compliant electricity meters. IC Role / Device Role: Secure, tamper-resistant storage with guaranteed data retention over 20 years at 85°C. Use Value: Industrial temperature rating and 10-year data retention at +85°C meet ANSI C12.19 and IEC 62056 requirements without thermal derating. |
Use Scenario: Storing calibration coefficients, usage logs, and patient-specific settings in portable ultrasound units. IC Role / Device Role: Certified nonvolatile memory for safety-critical configuration data with traceable integrity. Use Value: Built-in ECC and block-lock protection prevent silent corruption - satisfies IEC 62304 Class B software data integrity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NAND flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Macronix MX35LF2GE4AB | 2Gb density, same SOIC-8 package, but requires external ECC management and lacks QPI mode | Higher host CPU load for error correction; not suitable where firmware footprint or latency is constrained | Select only if legacy driver support exists and ECC can be handled in software |
| Micron MT29F2G01ABAGDWB-IT | 2Gb, 3V I/O, wider voltage range (2.7–3.6V), no integrated ECC, different command set | Requires board-level voltage translation for 1.8V hosts; incompatible with Winbond's command protocol | Choose only for systems already designed around Micron's parallel NAND ecosystem or multi-voltage supply rails |
Compared with MX35LF2GE4AB and MT29F2G01ABAGDWB-IT, W25N02KWTBIU TR delivers lower system-level complexity through integrated ECC and QPI acceleration, reducing firmware development time and improving real-time responsiveness in resource-constrained 1.8V embedded controllers.
Availability
W25N02KWTBIU TR is available at Aetrix Electronics and suitable for industrial automation, smart metering, and medical IoT applications requiring stable component supply across long product lifecycles.
Supply support for W25N02KWTBIU 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 and SRAM, with ISO 9001 and IATF 16949 certification.
The W25N family targets cost-sensitive, space-constrained embedded systems needing high-density serial NAND with minimal host overhead - emphasizing reliability, low power, and seamless integration into MCU-based designs.
FAQ
What is the maximum clock frequency supported by W25N02KWTBIU TR in Quad I/O mode?
W25N02KWTBIU TR supports up to 100 MHz in Quad I/O mode, delivering up to 400 MB/s effective throughput. This timing is validated under industrial temperature conditions (–40°C to +85°C) with proper signal integrity layout, including controlled impedance traces and minimized stub length. The device automatically adjusts setup/hold margins based on internal DLL calibration during initialization.
Does W25N02KWTBIU TR require external ECC hardware or software implementation?
No, W25N02KWTBIU TR includes a fully integrated 4-bit/512B BCH ECC engine that operates transparently during all read and program operations. Host systems do not need to implement ECC algorithms or allocate RAM buffers for correction - the device reports uncorrectable errors via status register bits, enabling graceful failure handling without data corruption risk.
Can W25N02KWTBIU TR be used as a direct replacement for parallel NAND flash in existing designs?
No, W25N02KWTBIU TR is a serial NAND device with SPI/QPI interface and cannot replace parallel NAND without significant hardware and firmware redesign. It lacks asynchronous address/data buses and uses command-based addressing. Migration requires adapting the host controller's driver stack to support serial NAND protocols, wear leveling, and bad-block management - though Winbond provides reference BSPs to accelerate this transition.
What is the typical page program time for W25N02KWTBIU TR, and how does it impact firmware update performance?
The typical page program time for W25N02KWTBIU TR is ≤700 μs per 2KB page. At full 100 MHz QPI speed, this enables sustained write throughput of ~1.2 MB/s. For a 1MB firmware image, total programming time is under 850 ms - significantly faster than legacy SPI NOR alternatives - reducing downtime during field updates and improving manufacturing test efficiency.
Is W25N02KWTBIU TR compatible with standard SPI controllers found in ARM Cortex-M microcontrollers?
Yes, W25N02KWTBIU TR is fully compatible with standard SPI peripherals in ARM Cortex-M MCUs (e.g., STM32, NXP Kinetis, Silicon Labs EFM32) when configured for single I/O mode. Quad I/O mode requires GPIO remapping and custom driver support, but Winbond provides HAL-compatible drivers for major RTOS platforms including FreeRTOS and Zephyr to simplify integration.
W25N02KWTBIU TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 24-TBGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NAND (SLC)
- Memory Size:
- 2Gbit
- Memory Organization:
- 256M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 700µs
- Access Time:
- 8 ns
- Voltage - Supply:
- 1.7V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TFBGA (8x6)
W25N02KWTBIU TR FAQ
1.How can I place an order for W25N02KWTBIU TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25N02KWTBIU 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 W25N02KWTBIU TR reliable?
The price and inventory of W25N02KWTBIU TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25N02KWTBIU TR is usually 5 days.
3.What payment methods are accepted for W25N02KWTBIU TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25N02KWTBIU TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25N02KWTBIU TR?
W25N02KWTBIU TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25N02KWTBIU 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 W25N02KWTBIU TR?
For technical support, including W25N02KWTBIU TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25N02KWTBIU TR requirements.
6.How does Aetrix verify that W25N02KWTBIU TR is sourced from the original manufacturer or authorized distributors?
All W25N02KWTBIU 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 W25N02KWTBIU TR meets industry standards.
7.What is the process for return or replacement of W25N02KWTBIU TR?
All W25N02KWTBIU TR units undergo pre-shipment inspection (PSI). If there is an issue with W25N02KWTBIU 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 W25N02KWTBIU TR part is unused and in its original packaging.
Return procedure for W25N02KWTBIU TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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