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Winbond Electronics Corporation W25N02KVZEIR TR
- Part No.:
- W25N02KVZEIR TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
W25N02KVZEIR TR.pdf
- Description:
- IC FLASH 2GBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,399
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Product details
Overview
W25N02KVZEIR TR from Winbond is a 2G-bit (256MB) SLC QspiNAND Flash memory IC supporting Dual/Quad SPI interfaces, 104MHz clock rate, on-chip 8-bit ECC, and 128KB uniform block erase. It operates from 2.7V to 3.6V, consumes 25mA active / 10µA standby / 1µA deep power-down, and is used in embedded systems requiring high-density non-volatile storage with minimal pin count and low power.
For engineers reviewing the W25N02KVZEIR TR datasheet, W25N02KVZEIR TR pinout, W25N02KVZEIR TR application, or W25N02KVZEIR TR equivalent, key selection considerations include SPI interface mode support (Standard/Dual/Quad), buffer vs. sequential read modes, OTP page availability, hardware/software write protection configuration, and WSON-8x6mm package compatibility with space-constrained PCB layouts.
Technical Context
The W25N02KVZEIR TR implements a QspiNAND architecture combining NAND flash density with SPI simplicity: its 131,072 × 2,048-byte pages are organized into 2,048 erasable 128KB blocks. It supports both Buffer Read (BUF=1) and Sequential Read (BUF=0) modes - the latter enabling full-array access via single command - and uses configurable status registers (SR-1/SR-2) for volatile and OTP-based protection.
Its I/O pins (IO0–IO3) serve dual roles: unidirectional DI/DO in Standard SPI, bidirectional in Dual/Quad SPI; /WP and /HOLD function as dedicated control inputs only in Standard/Dual modes, becoming IO2/IO3 in Quad mode. Internal 8-bit ECC is programmable (ECC-E bit), with real-time status reporting via ECC-1/ECC-0 bits and extended registers (BFD/BFS/BFR/MBF).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2G-bit (256M-byte) SLC NAND array, organized as 131,072 pages × 2,048 bytes |
| Interface Support | Standard SPI (DI/DO), Dual SPI (IO0/IO1), Quad SPI (IO0–IO3); all compliant with JEDEC SPI command set |
| Max Clock Frequency | 104MHz - enables 208MB/s (Dual I/O) or 416MB/s (Quad I/O) effective throughput |
| Erase/Program Endurance | 60,000 cycles per block - validated for industrial-grade reliability in frequent update applications |
| Data Retention | 10 years at +85°C - specified under worst-case operating temperature and voltage conditions |
| Power Supply | Single 2.7V–3.6V rail - eliminates need for auxiliary voltage regulators in 3.3V systems |
| ECC Capability | Configurable 8-bit on-chip ECC with status reporting (ECC-1/ECC-0) and bit-flip counters (BFD/BFS) |
Pinout & Package
W25N02KVZEIR TR is packaged in an 8-pad WSON 8×6-mm (JEDEC MO-252, package code ZE), with exposed thermal pad. Pin assignments are fully defined in Winbond's datasheet Figure 1a and Section 3.2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable: high = device deselected (high-Z outputs, standby current); must transition high→low before instruction acceptance |
| DO (IO1) | Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI; high-impedance during /HOLD assertion |
| /WP (IO2) | Write Protect Input / I/O2 | Hardware lock for SR-1 when WP-E=1 (entire device read-only); functions as IO2 in Quad mode when WP-E=0 |
| GND | Ground Reference | Primary return path for VCC and I/O signals; requires low-inductance connection to minimize noise in high-speed SPI |
| DI (IO0) | Data Input / I/O0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI; receives instructions, addresses, and program data |
| CLK | Serial Clock Input | Edge-triggered timing source: rising edge for input sampling, falling edge for output valid; max 104MHz |
| /HOLD (IO3) | Hold Input / I/O3 | Pauses ongoing Standard/Dual SPI transfers when low; becomes IO3 in Quad mode; requires external pull-up to avoid float |
| VCC | Power Supply | 2.7V–3.6V supply; decoupling capacitor (≥1µF) required near pin to stabilize during fast read/write bursts |
Key Features
| Feature | Design Value |
|---|---|
| Sequential Read Mode (BUF=0) | Enables full-memory linear access with one command - eliminates address incrementing overhead in firmware |
| Configurable 8-bit ECC | On-die correction with real-time status (ECC-1/ECC-0) and bit-flip tracking (BFD/BFS) - reduces host-side error-handling complexity |
| Dual/Quad SPI Flexibility | Same pinout supports Standard, Dual, and Quad protocols - allows bandwidth scaling without PCB redesign |
| 10 × 2KB OTP Pages | One-time-programmable storage for calibration data, keys, or firmware signatures - immune to accidental overwrite |
| Hardware Write Protection | /WP pin disables all write/erase operations when grounded and WP-E=1 - provides fail-safe protection against firmware corruption |
| Deep Power-Down (1µA) | Ultra-low quiescent current state activated by B9h command - extends battery life in always-on IoT edge nodes |
Applications
| Industrial HMI Display Storage | Medical Device Firmware Boot |
|---|---|
|
Use Scenario: Storing GUI assets, fonts, and localized language packs in panel-mounted HMIs with limited board area. IC Role / Device Role / Timing Role: Non-volatile storage for boot-time asset loading and runtime dynamic updates via SPI. Use Value: 256MB capacity accommodates high-resolution graphics; 104MHz Quad SPI enables sub-100ms UI asset load times. |
Use Scenario: Secure boot image storage in portable diagnostic equipment requiring FDA-compliant firmware integrity. IC Role / Device Role / Timing Role: Primary boot memory holding signed firmware images and cryptographic keys. Use Value: On-chip 8-bit ECC ensures bit-error resilience; 10 OTP pages store immutable root-of-trust keys. |
| Smart Energy Meter Data Logging | Automotive ADAS Camera Buffer |
|
Use Scenario: Cyclic logging of voltage/current/time stamps in DIN-rail energy meters operating at -40°C to +85°C. IC Role / Device Role / Timing Role: High-endurance data recorder with wear-leveling managed by host MCU. Use Value: 60,000 erase cycles and 10-year retention guarantee field-deployed reliability over 15+ year service life. |
Use Scenario: Temporary frame buffering in rear-view camera modules where NAND density outperforms NOR or eMMC. IC Role / Device Role / Timing Role: High-throughput sequential write buffer for compressed video frames prior to transmission. Use Value: 50MB/s sequential transfer rate (via Fast Read Quad I/O) sustains 1080p@30fps capture without frame drops. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar NAND flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Micron MT29F2G01ABAGDWB-IT | 2G-bit SLC NAND, Parallel NAND interface (not SPI); requires NAND controller with ONFI timing compliance | Requires dedicated NAND controller and larger PCB footprint; no built-in ECC engine | Select when existing platform uses parallel NAND and host handles ECC; not drop-in compatible with W25N02KVZEIR TR |
| Macronix MX35LF2GE4AB | 2G-bit SLC QspiNAND, identical 8-pin WSON package, but supports only up to 80MHz clock and lacks OTP pages | Lower max throughput (32MB/s vs. 50MB/s); no OTP storage for secure keys or calibration data | Choose for cost-sensitive designs where OTP and >40MB/s sequential read are non-critical |
Compared with MT29F2G01ABAGDWB-IT and MX35LF2GE4AB, W25N02KVZEIR TR uniquely combines SPI simplicity, 104MHz performance, on-die ECC, and 10 OTP pages in a compact WSON package - making it optimal for new designs prioritizing integration, security, and layout efficiency.
Availability
W25N02KVZEIR TR is available at Aetrix Electronics and suitable for industrial HMI display storage, medical device firmware boot, and smart energy meter data logging requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for W25N02KVZEIR 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 SPI NOR/NAND, RAM, and voice ICs, with global manufacturing and quality certifications.
The W25N QspiNAND product line was designed to replace parallel NAND in space- and pin-constrained embedded systems - delivering NAND density with SPI ease-of-use, integrated ECC, and industrial temperature support.
FAQ
What is the package type and dimensions of W25N02KVZEIR TR?
W25N02KVZEIR TR uses an 8-pad WSON (Wettable Flank Small Outline No-lead) package measuring 8mm × 6mm × 0.75mm (JEDEC MO-252), with package code ZE. It features an exposed thermal pad on the bottom for enhanced heat dissipation and solder joint inspection. This compact footprint supports high-density PCB layouts typical in industrial and portable electronics.
Does W25N02KVZEIR TR support Quad SPI operation, and what are the pin requirements?
Yes, W25N02KVZEIR TR supports Quad SPI using IO0–IO3 pins (mapped to DI, DO, /WP, and /HOLD respectively). In Quad mode, /WP and /HOLD become functional I/O lines - meaning hardware write protection and hold functionality are disabled during Quad operations. The device requires BUF=0 and ECC-E=0 for Sequential Read in Quad mode per Instruction Set Table 2.
How does the on-chip ECC in W25N02KVZEIR TR work, and how is it configured?
W25N02KVZEIR TR integrates a configurable 8-bit ECC engine controlled by the ECC-E bit in Status Register-2. When enabled (ECC-E=1), it automatically corrects up to 8-bit errors per 512-byte sector. ECC status is reported via ECC-1/ECC-0 bits in Status Register-3, and extended registers (BFD, BFS, BFR, MBF) provide bit-flip counters and maximum error reports - all accessible via standard SPI read commands.
Can W25N02KVZEIR TR be used for XIP (execute-in-place) applications?
Yes, W25N02KVZEIR TR supports code execution directly from flash (XIP) via Dual/Quad SPI interfaces. Its Fast Read Dual/Quad I/O instructions (e.g., BBh, EBh) deliver high effective bandwidth (208/416MHz), and the Sequential Read Mode (BUF=0) simplifies continuous instruction fetch. However, XIP requires host MCU support for SPI memory mapping and proper cache coherency handling.
What is the purpose and capacity of the OTP pages in W25N02KVZEIR TR?
W25N02KVZEIR TR includes ten 2,048-byte One-Time-Programmable (OTP) pages used for storing immutable data such as cryptographic keys, calibration coefficients, or device-specific identifiers. Once programmed, OTP pages cannot be erased or rewritten - providing hardware-enforced security against accidental or malicious modification during field operation or firmware updates.
W25N02KVZEIR 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:
- 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:
- 7 ns
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (8x6)
W25N02KVZEIR TR FAQ
1.How can I place an order for W25N02KVZEIR TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25N02KVZEIR 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 W25N02KVZEIR TR reliable?
The price and inventory of W25N02KVZEIR TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25N02KVZEIR TR is usually 5 days.
3.What payment methods are accepted for W25N02KVZEIR TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25N02KVZEIR TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25N02KVZEIR TR?
W25N02KVZEIR TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25N02KVZEIR 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 W25N02KVZEIR TR?
For technical support, including W25N02KVZEIR TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25N02KVZEIR TR requirements.
6.How does Aetrix verify that W25N02KVZEIR TR is sourced from the original manufacturer or authorized distributors?
All W25N02KVZEIR 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 W25N02KVZEIR TR meets industry standards.
7.What is the process for return or replacement of W25N02KVZEIR TR?
All W25N02KVZEIR TR units undergo pre-shipment inspection (PSI). If there is an issue with W25N02KVZEIR 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 W25N02KVZEIR TR part is unused and in its original packaging.
Return procedure for W25N02KVZEIR TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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