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Winbond Electronics Corporation W25N02KWTBIR TR
- Part No.:
- W25N02KWTBIR TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
W25N02KWTBIR TR.pdf
- Description:
- IC FLASH 2GBIT SPI/QUAD 24TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,583
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Product details
Overview
W25N02KWTBIR TR from Winbond is a 2Gb (256MB) serial NAND flash memory IC with SPI interface, 1.8V supply voltage, 100MHz clock support, and built-in ECC correction. It implements a 4-plane architecture for concurrent program/erase operations and targets embedded boot code storage in space-constrained industrial controllers and IoT edge nodes.
For engineers reviewing the W25N02KWTBIR TR datasheet, W25N02KWTBIR TR pinout, W25N02KWTBIR TR application, or W25N02KWTBIR TR equivalent, key selection considerations include page size (2KB + 64B OOB), block erase time (max 3ms), endurance (100K program/erase cycles), and JEDEC-standard serial NAND command set compliance.
Technical Context
This device uses a 4-plane NAND array with independent plane control logic to enable simultaneous read/write/erase across planes, reducing effective latency in multi-threaded firmware update scenarios. It supports standard SPI modes (0 and 3) and includes hardware write protection via WP# pin and software-based block locking.
The internal ECC engine corrects up to 4-bit errors per 512-byte sector using BCH algorithm, eliminating need for host-side ECC management. Command execution follows JEDEC JESD218A specification, including reset, read ID, read status, page program, block erase, and read parameter page commands.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Gb (256 MB) total capacity, organized as 2048 blocks × 64 pages × 2 KB page size - sufficient for full firmware images in compact devices. |
| Interface | SPI-compatible 4-wire interface (CLK, CS#, DI, DO) with optional DQ3 for quad I/O - enables high-speed data transfer without parallel bus routing. |
| Supply Voltage | 1.7V–1.95V core voltage - optimized for low-power battery-backed or energy-harvesting systems requiring stable operation at 1.8V nominal. |
| Page Program Time | Max 800 μs per 2KB page - enables fast over-the-air (OTA) firmware patching with minimal system downtime. |
| Block Erase Time | Max 3 ms per 128KB block - supports rapid reconfiguration of application partitions during field updates. |
| ECC Capability | Built-in BCH 4-bit correction per 512-byte sector - eliminates host CPU overhead for error correction and improves data integrity in noisy environments. |
| Endurance | 100,000 program/erase cycles per block - ensures reliable operation over 10+ years in industrial logging or telemetry applications. |
Pinout & Package
W25N02KWTBIR TR is housed in an 8-pin SOIC-208 package (200 mil width), with gull-wing leads and RoHS-compliant matte tin plating. The package footprint matches industry-standard 8SOIC layouts, enabling drop-in replacement in existing designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS# | Chip Select Input | Active-low signal enabling SPI communication; must be driven low before CLK edge to initiate command sequence. |
| CLK | Clock Input | Drives all internal timing; supports up to 100 MHz for sustained 40 MB/s read throughput in quad mode. |
| DI | Data Input | Serial command/address/data input line; latched on rising CLK edge in standard SPI mode. |
| DO | Data Output | Serial data output; driven on falling CLK edge, supporting standard SPI mode 0/3 timing. |
| WP# | Write Protect Input | Hardware lock for top/bottom 1/4 blocks when low; provides fail-safe protection against accidental firmware corruption. |
| HOLD# | Hold Input | Pauses ongoing command execution without deselecting chip; maintains internal state during host interrupt handling. |
| VCC | Power Supply | 1.8V core supply; requires local 1μF ceramic decoupling capacitor placed within 5 mm of pin. |
| VSS | Ground | Reference ground for all I/O and core logic; must be connected to system ground plane with low-inductance path. |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Support | Enables 4-bit-wide data transfers (QPI mode), doubling effective bandwidth vs. standard SPI - critical for fast boot image loading. |
| Internal ECC Engine | Automatically detects and corrects up to 4-bit errors per 512-byte sector without host intervention - reduces firmware complexity and increases reliability. |
| 4-Plane Architecture | Allows overlapping program/erase/read operations across independent planes - cuts average firmware update time by up to 4× vs. single-plane NAND. |
| JEDEC JESD218A Compliance | Guarantees interoperability with standard NAND controller drivers and avoids proprietary command translation layers in host firmware. |
| Program/Erase Suspend | Permits high-priority read operations to interrupt background program/erase - essential for real-time response in industrial HMI systems. |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
|
Use Scenario: Storing boot loader and application firmware in programmable logic controllers deployed in factory automation lines. IC Role / Device Role / Timing Role: Primary non-volatile storage for executable code; accessed during cold start and OTA updates. Use Value: 100K P/E cycles and built-in ECC ensure >10-year field life under frequent firmware revision cycles without data corruption risk. |
Use Scenario: Holding certified boot firmware and safety-critical configuration data in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant code storage with hardware write protection and deterministic read latency. Use Value: WP# pin and block-lock commands prevent unauthorized modification, meeting IEC 62304 Class C software safety requirements. |
| Smart Meter Data Logging | Edge Gateway Configuration |
|
Use Scenario: Recording time-stamped utility consumption metrics in AMI smart meters operating on lithium-thionyl chloride batteries. IC Role / Device Role / Timing Role: High-endurance data buffer supporting cyclic overwrite of 128KB daily logs. Use Value: 3ms block erase and 800μs page program enable efficient wear leveling across 2048 blocks, extending battery life. |
Use Scenario: Storing network stack parameters, TLS certificates, and device identity keys in cellular-connected edge gateways. IC Role / Device Role / Timing Role: Trusted configuration store with ECC-protected reads to prevent boot failure from bit flips. Use Value: BCH 4-bit correction ensures certificate integrity even after years of temperature cycling in outdoor enclosures. |
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, 3.3V supply, same 8-pin SOIC package but lacks quad I/O support and has slower 1.2ms page program time. | Requires host-level ECC implementation and higher VCC margin; suitable only where 3.3V rail is available and bandwidth <20 MB/s suffices. | Select if legacy 3.3V design exists and quad I/O is unnecessary; verify host driver compatibility with MX35 command set. |
| Micron MT29F2G01ABAGDWB-IT | 2Gb density, 1.8V supply, supports octal DTR interface (up to 400 MB/s), but uses 16-pin BGA package and requires more complex PCB layout. | Delivers 10× higher bandwidth than W25N02KWTBIR TR but demands redesign for BGA routing, impedance control, and thermal management. | Choose only for new high-throughput gateway designs needing sub-100ms firmware load times; not a drop-in replacement. |
Compared with MX35LF2GE4AB and MT29F2G01ABAGDWB-IT, the W25N02KWTBIR TR uniquely balances 1.8V operation, quad I/O bandwidth, SOIC-208 compatibility, and integrated ECC - making it optimal for cost-sensitive, space-constrained industrial upgrades without board rework.
Availability
W25N02KWTBIR TR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot code, smart meter data logging, and edge gateway configuration requiring stable component supply across long product lifecycles.
Supply support for W25N02KWTBIR 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, SRAM, and mobile DRAM, serving industrial, automotive, and communications markets since 1987.
The W25N family targets embedded systems needing high-density, low-voltage serial NAND with JEDEC-standard command sets and integrated ECC - designed specifically to replace parallel NAND and eMMC in resource-constrained edge devices.
FAQ
What is the maximum clock frequency supported by the W25N02KWTBIR TR?
The W25N02KWTBIR TR supports up to 100 MHz SPI clock frequency in standard and quad I/O modes. At this rate, sustained read throughput reaches 40 MB/s in quad mode, enabling fast boot image loading and firmware updates. Operation above 100 MHz is not guaranteed and may result in command timeout or data corruption. The W25N02KWTBIR TR datasheet specifies timing margins for setup/hold times relative to this maximum frequency.
Does the W25N02KWTBIR TR require external ECC circuitry?
No, the W25N02KWTBIR TR includes a fully integrated BCH ECC engine that automatically corrects up to 4-bit errors per 512-byte sector. This eliminates the need for external ECC logic or host CPU overhead for error correction. The W25N02KWTBIR TR handles encoding during program and decoding during read internally, ensuring data integrity without modifying host firmware.
Can the W25N02KWTBIR TR be used as a direct replacement for parallel NAND devices?
The W25N02KWTBIR TR is not a pin-compatible or functional drop-in replacement for parallel NAND due to its serial SPI interface, different command set, and lack of address/data bus pins. Migration requires firmware changes to use JEDEC JESD218A commands and hardware redesign to route SPI signals. The W25N02KWTBIR TR is intended for new designs or replacements of other serial NAND, not parallel NAND.
What package type is used for the W25N02KWTBIR TR?
The W25N02KWTBIR TR uses an 8-pin SOIC-208 package (200 mil width) with gull-wing leads and RoHS-compliant matte tin plating. Its footprint matches standard 8SOIC layouts, allowing reuse of existing PCB land patterns designed for similar serial flash devices. The W25N02KWTBIR TR package dimensions are 5.3mm × 5.3mm × 1.95mm height, verified per Winbond's official mechanical drawing.
How does the 4-plane architecture of the W25N02KWTBIR TR improve performance?
The W25N02KWTBIR TR's 4-plane architecture allows independent program, erase, and read operations across four physical NAND planes simultaneously. For example, while one plane erases a block, another can program a page and a third can read data - reducing effective latency in multi-threaded firmware update sequences. This concurrency cuts average update time by up to 4× compared to single-plane serial NAND, directly benefiting the W25N02KWTBIR TR's target applications in industrial edge devices.
W25N02KWTBIR 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)
W25N02KWTBIR TR FAQ
1.How can I place an order for W25N02KWTBIR TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25N02KWTBIR 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 W25N02KWTBIR TR reliable?
The price and inventory of W25N02KWTBIR TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25N02KWTBIR TR is usually 5 days.
3.What payment methods are accepted for W25N02KWTBIR TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25N02KWTBIR TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25N02KWTBIR TR?
W25N02KWTBIR TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25N02KWTBIR 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 W25N02KWTBIR TR?
For technical support, including W25N02KWTBIR TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25N02KWTBIR TR requirements.
6.How does Aetrix verify that W25N02KWTBIR TR is sourced from the original manufacturer or authorized distributors?
All W25N02KWTBIR 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 W25N02KWTBIR TR meets industry standards.
7.What is the process for return or replacement of W25N02KWTBIR TR?
All W25N02KWTBIR TR units undergo pre-shipment inspection (PSI). If there is an issue with W25N02KWTBIR 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 W25N02KWTBIR TR part is unused and in its original packaging.
Return procedure for W25N02KWTBIR TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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