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Winbond Electronics Corporation W25N02JWSFIF TR
- Part No.:
- W25N02JWSFIF TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
W25N02JWSFIF TR.pdf
- Description:
- IC FLASH 2GBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,906
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Product details
Overview
W25N02JWSFIF TR from Winbond is a 1.8V 2G-bit Serial SLC NAND Flash Memory with Dual/Quad SPI interface, supporting up to 166MHz STR and 80MHz DTR operation. It features 128KB uniform block erase, on-chip 1-bit ECC, and dual read modes (Buffer Read and Continuous Read). Designed for embedded code storage and firmware update in space-constrained industrial controllers and IoT edge nodes.
For engineers reviewing the W25N02JWSFIF TR datasheet, W25N02JWSFIF TR pinout, W25N02JWSFIF TR application, or W25N02JWSFIF TR equivalent, key selection criteria include 1.8V supply compatibility, 128KB block architecture, DTR timing support, internal ECC configuration, and SOIC-300mil package footprint with /CS, CLK, IO0–IO3, /WP, /HOLD, and /RESET terminals.
Technical Context
The W25N02JWSFIF TR implements a standard SPI-compatible command set extended with Dual/Quad I/O and DTR protocols, enabling high-throughput data streaming via Fast Read Quad I/O (6Bh/6Ch) and DTR Fast Read Quad I/O (6Dh/6Eh) instructions. Its memory array is organized into 131,072 pages of 2,048 bytes each across 2,048 erasable 128KB blocks.
It supports two configurable read modes: Buffer Read (default at power-up for G-suffix parts) and Continuous Read (T-suffix default), differing only in command structure-not timing or ECC behavior. Internal ECC operates automatically during read, with status bits (ECC-1/ECC-0 in Status Register-3) reporting correction events per page access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 2G-bit (256M-byte) SLC NAND array, organized as 131,072 × 2,048-byte pages |
| Interface Speed | 166MHz STR clock; 80MHz DTR clock - enables 664MB/s theoretical quad-I/O bandwidth |
| Erase Granularity | 128KB uniform block erase (64 pages/block); no partial-block or sector erase |
| ECC Capability | On-chip 1-bit ECC per 528-byte sector; automatic correction with status reporting |
| Endurance & Retention | 100,000 program/erase cycles; 10-year data retention at +85°C |
| Supply Voltage | 1.70V–1.95V single supply; supports low-power active (25mA) and standby (10µA) modes |
| Operating Temp | -40°C to +85°C industrial grade; validated across full voltage and temperature range |
Pinout & Package
W25N02JWSFIF TR is packaged in 16-pin SOIC-300mil (package code SF), with gull-wing leads and standard JEDEC MS-012AC footprint. Pin 1 marked by notch or dot; pin 8 = VSS, pin 16 = VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select | Active-low enable for SPI command decoding; must be deasserted between commands |
| CLK | Serial Clock | Input-only master clock; controls all data sampling edges in STR/DTR modes |
| IO0 | Serial Data I/O (DI/DO) | Primary bidirectional data line; used for standard SPI and as least-significant I/O in quad mode |
| IO1 | Serial Data I/O (DO) | Output-only in standard SPI; second I/O line in dual/quad modes |
| IO2 | Serial Data I/O (/WP) | Functions as Write Protect input in standard mode; third I/O line in quad mode |
| IO3 | Serial Data I/O (/HOLD) | Functions as Hold input in standard mode; fourth I/O line in quad mode |
| /RESET | Hardware Reset | Asynchronous active-low reset; clears internal state and exits deep power-down |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | Enables linear sequential access across entire array with single Read instruction-eliminates per-page "Page Data Read" overhead for firmware shadowing |
| Dual Transfer Rate (DTR) | Transfers address and data on both clock edges; doubles effective throughput without increasing clock frequency-critical for deterministic real-time boot loading |
| Configurable Read Mode | BUF bit (Status Register-2, bit 5) selects Buffer Read (default for G-suffix) or Continuous Read (default for T-suffix); software-switchable without reset |
| On-Chip ECC & BBM | Automatic 1-bit correction per sector with LUT-based bad block management-reduces host driver complexity and improves field reliability |
| OTP Protection | Ten 2KB one-time-programmable pages plus SRP0/SRP1 lock bits-secures bootloader, keys, or calibration data against accidental overwrite |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Image |
|---|---|
|
Use Scenario: Storing certified firmware images in programmable logic controllers requiring secure, long-life non-volatile storage with deterministic read latency. IC Role / Device Role / Timing Role: Primary boot memory mapped via SPI host controller; delivers verified firmware to ARM Cortex-M7 during cold start. Use Value: 100K-cycle endurance and 10-year retention ensure firmware integrity over full product lifecycle without field replacement. |
Use Scenario: Holding FDA-cleared boot code and diagnostic algorithms in portable ultrasound units where radiation tolerance and data integrity are critical. IC Role / Device Role / Timing Role: Secure code execution source; leverages OTP pages for immutable bootloader signature and ECC for error-resilient runtime reads. Use Value: On-chip 1-bit ECC eliminates need for external error-handling logic-reducing BOM count and validation effort. |
| Smart Meter OTA Update Storage | Automotive Telematics Log Buffer |
|
Use Scenario: Caching encrypted firmware patches received over LPWAN before atomic flash update in utility smart meters operating at -40°C to +85°C. IC Role / Device Role / Timing Role: High-reliability update staging area; uses Continuous Read Mode to stream patch verification checksums rapidly. Use Value: 80MB/s continuous transfer rate enables sub-second patch validation-minimizing meter downtime during OTA windows. |
Use Scenario: Capturing CAN bus diagnostic logs in vehicle telematics gateways where vibration and thermal cycling demand robust NAND wear leveling. IC Role / Device Role / Timing Role: Buffered event logger; relies on built-in Bad Block Management (BBM) and LUT access to maintain log continuity despite cell degradation. Use Value: Automatic BBM reduces host MCU firmware complexity-no custom bad-block remapping required in safety-critical automotive software. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NAND flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MT29F2G01ABAGDWB-IT:C | 3.3V supply; 133MHz max STR; no DTR support; requires external ECC controller | Suitable for legacy 3.3V systems with simpler timing budgets; not drop-in compatible due to voltage and protocol mismatch | Select only if migrating from Micron platform or when DTR and 1.8V operation are unnecessary |
| GD5F2GQ4UCYIGR | 1.8V supply; 100MHz STR; no DTR; 2-bit BCH ECC; different command set (ONFI-like) | Better raw endurance (60K cycles), but lacks Continuous Read Mode and DTR-limits streaming performance | Prefer for cost-sensitive designs where ECC robustness outweighs throughput needs and command compatibility is flexible |
Compared with MT29F2G01ABAGDWB-IT:C and GD5F2GQ4UCYIGR, the W25N02JWSFIF TR uniquely combines 1.8V operation, DTR support, Continuous Read Mode, and integrated 1-bit ECC-making it optimal for new industrial and automotive designs prioritizing throughput, power efficiency, and firmware integrity.
Availability
W25N02JWSFIF TR is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot image retention, smart meter OTA update caching, automotive telematics log buffering, and embedded gateway configuration persistence requiring stable component supply and long-term lifecycle support.
Supply support for W25N02JWSFIF 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 trusted computing ICs since 1987.
The W25N SpiFlash family targets embedded systems needing high-density, low-pin-count non-volatile storage with SPI simplicity-designed specifically to replace parallel NAND and eMMC in resource-constrained microcontroller-based applications.
FAQ
What is the default read mode for W25N02JWSFIF TR at power-up?
The W25N02JWSFIF TR defaults to Buffer Read Mode (BUF=1) at power-up, consistent with the 'G' suffix designation in the W25N01JWxxxG/T datasheet family. This is confirmed by the device's power-on reset behavior and Status Register-2 initialization value. The BUF bit can be reconfigured via Write Status Register instruction (1Fh) to enable Continuous Read Mode for streaming applications without hardware change.
Does W25N02JWSFIF TR support DTR (Double Transfer Rate) operation?
Yes, W25N02JWSFIF TR supports DTR operation up to 80MHz, enabling address and data transfers on both clock edges. This capability is explicitly documented in the datasheet for DTR Fast Read (0Dh/0Eh), DTR Fast Read Dual I/O (BDh/BEh), and DTR Fast Read Quad I/O (EDh/EEh) instructions. DTR mode requires proper setup of the HS bit (Status Register-4, bit 2) and is validated across the full industrial temperature range.
How many OTP pages does W25N02JWSFIF TR provide, and what is their size?
W25N02JWSFIF TR provides ten 2,048-byte OTP (One-Time Programmable) pages, accessible only when OTP-E bit (Status Register-2, bit 1) is set. Each page is individually programmable but not erasable; once written, contents are permanent. These pages are commonly used for storing cryptographic keys, calibration data, or immutable bootloader signatures-leveraging OTP-L and SR1-L bits for write protection.
What package type is used for W25N02JWSFIF TR, and what are its mechanical dimensions?
W25N02JWSFIF TR uses the 16-pin SOIC-300mil package (package code SF), measuring 10.16mm × 7.62mm × 2.39mm with standard gull-wing lead pitch of 1.27mm. This JEDEC MS-012AC-compliant package is pin-compatible with legacy SPI flash devices and supports reflow soldering per J-STD-020. Footprint and land pattern match industry-standard SOIC-16 layouts.
Is on-chip ECC enabled by default in W25N02JWSFIF TR, and how is it configured?
Yes, on-chip 1-bit ECC is enabled by default in W25N02JWSFIF TR via the ECC-E bit (Status Register-2, bit 4), which powers up set. ECC operates transparently during all read operations and reports correction status via ECC-1/ECC-0 bits in Status Register-3. The ECC engine corrects single-bit errors per 528-byte sector and flags uncorrectable multi-bit errors-no host intervention required for basic operation.
W25N02JWSFIF TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 16-SOIC (0.295", 7.50mm Width)
- 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, QPI, DTR
- Clock Frequency:
- 166 MHz
- Write Cycle Time - Word, Page:
- 700µs
- 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:
- 16-SOIC
W25N02JWSFIF TR FAQ
1.How can I place an order for W25N02JWSFIF TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25N02JWSFIF 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 W25N02JWSFIF TR reliable?
The price and inventory of W25N02JWSFIF TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25N02JWSFIF TR is usually 5 days.
3.What payment methods are accepted for W25N02JWSFIF TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25N02JWSFIF TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25N02JWSFIF TR?
W25N02JWSFIF TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25N02JWSFIF 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 W25N02JWSFIF TR?
For technical support, including W25N02JWSFIF TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25N02JWSFIF TR requirements.
6.How does Aetrix verify that W25N02JWSFIF TR is sourced from the original manufacturer or authorized distributors?
All W25N02JWSFIF 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 W25N02JWSFIF TR meets industry standards.
7.What is the process for return or replacement of W25N02JWSFIF TR?
All W25N02JWSFIF TR units undergo pre-shipment inspection (PSI). If there is an issue with W25N02JWSFIF 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 W25N02JWSFIF TR part is unused and in its original packaging.
Return procedure for W25N02JWSFIF TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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