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Winbond Electronics Corporation W25N02KWTCIR TR
- Part No.:
- W25N02KWTCIR TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
W25N02KWTCIR TR.pdf
- Description:
- IC FLASH 2GBIT SPI/QUAD 24TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,248
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Product details
Overview
W25N02KWTCIR TR from Winbond Electronics is a 2Gb (256MB) serial NAND flash memory IC with SPI interface, 1.8V core voltage, 4KB page size, and 128KB block size. It supports single- and dual-I/O modes, ECC correction up to 8-bit per 512-byte sector, and operates across industrial temperature range (–40°C to +85°C).
For engineers reviewing the W25N02KWTCIR TR datasheet, W25N02KWTCIR TR pinout, W25N02KWTCIR TR application, or W25N02KWTCIR TR equivalent, key selection considerations include its 1.8V VCC requirement, integrated ECC engine, 100K program/erase cycle endurance, and compatibility with legacy SPI NAND controllers in space-constrained embedded storage designs.
Technical Context
This device implements a standard SPI-compatible command set for NAND flash, including Read Page, Program Page, Block Erase, and Read Status Register operations. It integrates on-die ECC capable of correcting up to 8 bits per 512-byte sector and includes internal bad block management.
The W25N02KWTCIR TR uses a 16-pin SOP8 (208-mil) package with standard SPI signal mapping (CS#, CLK, DI, DO, WP#, HOLD#) plus VCC, VSS, and NC pins. It supports both single-line and dual-line I/O data transfer modes without requiring external ECC hardware.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2 Gb (256 MB) usable capacity after spare area allocation |
| Interface | SPI-compatible 4-wire interface (CS#, CLK, DI, DO); supports Dual I/O mode |
| Page Size | 4,096 bytes (+128-byte spare area) - defines minimum read/write granularity |
| Block Size | 128 KB (32 pages) - minimum erasable unit; impacts wear leveling efficiency |
| VCC Supply | 1.7V–1.95V - mandates low-voltage power rail design; incompatible with 3.3V-only systems |
| Endurance | 100,000 program/erase cycles per block - determines field lifetime in logging applications |
| Data Retention | 10 years at 25°C - specifies archival reliability without refresh |
Pinout & Package
Package: 16-pin SOP8 (208-mil), RoHS-compliant, surface-mount.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (CS#) | Chip Select | Active-low enable for SPI command decoding; must be asserted before CLK edge |
| 2 (DO) | Data Output | Serial output for read operations and status register reads |
| 3 (WP#) | Write Protect | Hardware lock for status register and block protection; pulled high to disable protection |
| 4 (VSS) | Ground | Reference return path for all digital and core logic circuits |
| 5 (DI) | Data Input | Serial input for commands, addresses, and program data |
| 6 (CLK) | Serial Clock | Master-generated clock synchronizing all SPI transfers; max 104 MHz in fast-read mode |
| 7 (HOLD#) | Hold Control | Pauses ongoing read without deselecting chip; enables multi-byte burst interruption |
| 8 (VCC) | Power Supply | 1.8V core supply; requires local decoupling capacitor (≥1µF) near pin |
Key Features
| Feature | Design Value |
|---|---|
| On-die ECC engine | Corrects up to 8-bit errors per 512-byte sector - eliminates need for external ECC ASIC or host CPU overhead |
| Bad block management | Automatic detection and remapping during program/erase - reduces firmware complexity for raw NAND handling |
| Dual I/O mode | 2x throughput vs. single I/O - improves sequential read speed to 133 MB/s (fast read) |
| Program/Erase suspend | Enables background erase while servicing read requests - critical for real-time response in HMI systems |
| Industrial temp range | –40°C to +85°C operation - validated for deployment in automotive infotainment and industrial PLCs |
Applications
| Industrial HMI Storage | Automotive Telematics Logging |
|---|---|
|
Use Scenario: Storing firmware images, configuration profiles, and UI assets in panel-mounted HMIs. IC Role / Device Role / Timing Role: Primary nonvolatile storage for boot code and persistent user data; accessed via SPI during cold start and runtime updates. Use Value: 1.8V operation reduces system power budget; 100K P/E cycles support 5+ years of daily firmware patching in factory-floor deployments. |
Use Scenario: Capturing GPS coordinates, CAN bus diagnostics, and driver behavior logs in telematics control units. IC Role / Device Role / Timing Role: High-reliability logging buffer with ECC-protected writes; triggered by event-based interrupts. Use Value: On-die ECC ensures data integrity despite voltage transients in automotive 12V environments; 128KB block size aligns with typical log segment sizing. |
| Medical Device Data Archiving | Smart Meter Firmware Storage |
|
Use Scenario: Recording sensor calibration histories and audit trails in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant archive storage with write-protection capability. Use Value: WP# pin enables hardware-level lockdown of calibration records post-certification; 10-year data retention meets FDA regulatory requirements. |
Use Scenario: Holding meter firmware, tariff tables, and encryption keys in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: Trusted boot source and secure parameter store; accessed during power-up and OTA update verification. Use Value: Dual I/O mode accelerates firmware validation checks; integrated ECC prevents silent corruption of cryptographic keys. |
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 | 3.3V VCC, same 2Gb density and SOP8 package; no on-die ECC - requires host-based correction | Suitable where existing 3.3V power architecture precludes redesign; adds host CPU load for ECC | Select if board already uses 3.3V IO rails and firmware supports software ECC |
| Micron MT29F2G01ABAGDWB | 3.3V VCC, 2Gb density, TSOP48 package; includes on-die ECC but requires ONFI-compatible controller | Requires PCB layout change (TSOP48 vs SOP8); targets higher-bandwidth applications with parallel interface | Choose only when migrating to ONFI-based controller and needing higher sustained throughput |
Compared with MX35LF2GE4AB and MT29F2G01ABAGDWB, the W25N02KWTCIR TR uniquely delivers 1.8V operation with integrated ECC in a compact SOP8 footprint-enabling lower-power, smaller-form-factor designs without host ECC overhead or package conversion.
Availability
W25N02KWTCIR TR is available at Aetrix Electronics and suitable for industrial HMI storage, automotive telematics logging, medical device data archiving, and smart meter firmware storage requiring stable component supply and long-term lifecycle assurance.
Supply support for W25N02KWTCIR 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.
The W25N series is designed specifically for cost-sensitive, space-constrained embedded systems requiring reliable serial NAND storage with minimal external components and ECC offload.
FAQ
What is the maximum clock frequency supported by the W25N02KWTCIR TR in fast read mode?
The W25N02KWTCIR TR supports up to 104 MHz in fast read mode with dual I/O enabled. This allows peak sequential read throughput of 133 MB/s. The device maintains timing compliance across the full industrial temperature range (–40°C to +85°C), and the W25N02KWTCIR TR datasheet specifies setup/hold margins relative to this clock rate under worst-case voltage and temperature conditions.
Does the W25N02KWTCIR TR require external ECC circuitry?
No, the W25N02KWTCIR TR includes a fully integrated on-die ECC engine capable of detecting and correcting up to 8-bit errors per 512-byte sector. This eliminates the need for external ECC ICs or host-CPU-based correction routines. The W25N02KWTCIR TR automatically applies ECC during program and read operations, and status registers report correction activity for system-level monitoring.
Can the W25N02KWTCIR TR be used as a direct replacement for 3.3V SPI NAND devices?
No, the W25N02KWTCIR TR operates exclusively at 1.8V (1.7–1.95V) and is not compatible with 3.3V I/O systems. Attempting to interface it with 3.3V logic levels risks damage or unreliable operation. The W25N02KWTCIR TR requires dedicated 1.8V power regulation and level-shifting for control signals if coexisting with 3.3V peripherals.
How does the W25N02KWTCIR TR handle bad blocks during manufacturing and field use?
The W25N02KWTCIR TR performs factory bad block marking during test and supports dynamic bad block detection during program/erase cycles. It implements automatic remapping using reserved blocks, and reports bad block status via status register bits. The W25N02KWTCIR TR firmware layer must track logical-to-physical block mapping, but the device handles physical relocation transparently without host intervention.
What package type and dimensions does the W25N02KWTCIR TR use?
The W25N02KWTCIR TR uses a 16-pin SOP8 package with 208-mil body width (5.3mm × 4.1mm) and 1.27mm lead pitch. It complies with JEDEC MS-012AC and RoHS standards. The W25N02KWTCIR TR pinout matches standard SPI NAND footprints, enabling drop-in replacement within SOP8-constrained layouts when voltage and timing constraints are met.
W25N02KWTCIR 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)
W25N02KWTCIR TR FAQ
1.How can I place an order for W25N02KWTCIR TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25N02KWTCIR 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 W25N02KWTCIR TR reliable?
The price and inventory of W25N02KWTCIR TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25N02KWTCIR TR is usually 5 days.
3.What payment methods are accepted for W25N02KWTCIR TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25N02KWTCIR TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25N02KWTCIR TR?
W25N02KWTCIR TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25N02KWTCIR 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 W25N02KWTCIR TR?
For technical support, including W25N02KWTCIR TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25N02KWTCIR TR requirements.
6.How does Aetrix verify that W25N02KWTCIR TR is sourced from the original manufacturer or authorized distributors?
All W25N02KWTCIR 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 W25N02KWTCIR TR meets industry standards.
7.What is the process for return or replacement of W25N02KWTCIR TR?
All W25N02KWTCIR TR units undergo pre-shipment inspection (PSI). If there is an issue with W25N02KWTCIR 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 W25N02KWTCIR TR part is unused and in its original packaging.
Return procedure for W25N02KWTCIR TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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