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Winbond Electronics Corporation W25N01JWTBIT
- Part No.:
- W25N01JWTBIT
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
W25N01JWTBIT.pdf
- Description:
- IC FLASH 1GBIT SPI/QUAD 24TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,608
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Product details
Overview
W25N01JWTBIT from Winbond is a 1.8V serial SLC NAND flash memory IC with 1G-bit (128MB) capacity, organized as 65,536 × 2,048-byte pages and 1,024 × 128KB erase blocks. It supports Dual/Quad SPI up to 166MHz STR and 80MHz DTR, delivers 80MB/s continuous read throughput, and features on-chip 1-bit ECC, Bad Block Management, and configurable Buffer/Continuous Read modes. It is used in embedded boot storage, firmware code shadowing, and industrial HMI data logging.
For engineers reviewing the W25N01JWTBIT datasheet, W25N01JWTBIT pinout, W25N01JWTBIT application, or W25N01JWTBIT equivalent, key selection considerations include its 1.7–1.95V supply range, dual-mode read architecture (BUF=0 vs BUF=1), DTR timing compliance, TFBGA-24 / WSON-8 package options, and OTP page programmability for secure configuration storage.
Technical Context
The W25N01JWTBIT implements a standard SPI-compatible command set extended with Dual/Quad I/O and DTR protocols, enabling address/data transfers on both clock edges. Its internal architecture includes a 2,048-byte page buffer, dedicated BBM LUT access (A5h), and four status registers with volatile and OTP-lockable bits for protection and configuration control.
It supports two distinct read execution models: Continuous Read Mode (default for W25N01JWTBIT) enables seamless sequential access across page boundaries without reissuing Page Data Read commands, while Buffer Read Mode requires explicit page addressing. ECC correction and failure reporting are handled via Status Register-3 (ECC-1/ECC-0) and Status Register-4 (DLP-E, HS).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Type | SLC NAND Flash - single-level cell architecture for high endurance and predictable latency. |
| Capacity | 1 G-bit (128 MB) - organized as 65,536 pages × 2,048 bytes, 1,024 blocks × 128 KB. |
| Interface Speed | 166 MHz STR / 80 MHz DTR - enables 664 MB/s theoretical Quad I/O bandwidth and 80 MB/s sustained continuous read. |
| Supply Voltage | 1.70 V to 1.95 V - single-supply operation compatible with low-voltage SoC I/O domains. |
| Erase/Program Endurance | 100,000 cycles - specified with on-chip 1-bit ECC enabled per JEDEC JESD22-A117. |
| Data Retention | 10 years at +85°C - validated under accelerated stress conditions per JEDEC JESD22-A110. |
| ECC | On-chip 1-bit error correction - automatically applied during read; status reported via SR3 bits ECC-1/ECC-0. |
| Read Modes | Buffer Read (BUF=1) and Continuous Read (BUF=0) - W25N01JWTBIT powers up in Continuous Read mode. |
Pinout & Package
W25N01JWTBIT is available in TFBGA-24 (8×6 mm, 5×5-1 ball array, package code TB), matching the pinout shown in Figure 3-3 of the datasheet. This package supports full Dual/Quad SPI and DTR functionality with dedicated /CS, CLK, IO0–IO3, /WP, /HOLD, and /RESET terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select | Active-low enable for SPI command latching; must be deasserted between instructions to terminate communication. |
| CLK | Serial Clock | Master-generated clock up to 166 MHz STR or 80 MHz DTR; controls all data/address sampling edges. |
| IO0 | Serial Data Input/Output | Primary bidirectional line for standard SPI; functions as DI in STR, and as first data lane in Dual/Quad/DTR modes. |
| IO1 | Serial Data Input/Output | Second bidirectional lane; used for DO in standard SPI, and as second data lane in Dual/Quad/DTR reads/writes. |
| IO2 | Input/Output (default /WP) | Configurable as /WP when QE=0; becomes IO2 in Quad mode when QE=1 (set via Status Register-2). |
| IO3 | Input/Output (default /HOLD) | Configurable as /HOLD when QE=0; becomes IO3 in Quad mode when QE=1. |
| /WP | Write Protect | Hardware pin that disables program/erase when asserted low; complements software write protection bits (BPx, WP-E). |
| /HOLD | Hold | Pauses ongoing serial transfer without deselecting device; retains internal state during host interrupt handling. |
| /RESET | Hardware Reset | Asynchronous active-low reset that clears internal state and returns device to power-on default configuration. |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode (BUF=0) | Enables uninterrupted sequential access across page boundaries using a single Read instruction-eliminates inter-page command overhead in firmware loading. |
| DTR (Double Transfer Rate) | Transfers addresses and read data on both clock edges at up to 80 MHz, doubling effective bandwidth without increasing clock frequency or EMI. |
| On-chip 1-bit ECC | Corrects single-bit errors per 528-byte sector automatically; status flags (ECC-1/ECC-0) allow host firmware to log or trigger recovery on uncorrectable events. |
| Bad Block Management (BBM) | Stores invalid block addresses in an on-die Look-Up Table (LUT); accessible via A5h instruction for host-level wear leveling integration. |
| 10 × 2KB OTP Pages | One-time-programmable memory space for storing cryptographic keys, calibration data, or device-specific identifiers-irreversible and immune to field reprogramming. |
| Configurable Output Driver Strength | ODS1/ODS0 bits in Status Register-4 allow tuning drive strength to match PCB trace impedance and reduce signal integrity issues in high-speed Quad/DTR modes. |
Applications
| Industrial HMI Firmware Storage | Edge Gateway Boot Memory |
|---|---|
|
Use Scenario: Storing Linux kernel, device tree, and rootfs images in compact industrial HMIs where board space and BOM count are constrained. IC Role / Device Role / Timing Role: Primary non-volatile boot memory providing fast, reliable code shadowing via Continuous Read Mode to DRAM. Use Value: Eliminates need for external memory controller; 80MB/s read throughput reduces boot time by >35% versus legacy SPI NOR in same footprint. |
Use Scenario: Hosting secure bootloader and firmware update partitions in cellular/NB-IoT edge gateways operating across -40°C to +85°C. IC Role / Device Role / Timing Role: Trusted firmware storage with OTP pages for public key storage and ECC-enabled integrity verification during OTA updates. Use Value: On-chip 1-bit ECC and BBM reduce host-side error-handling complexity; 100K-cycle endurance supports frequent field updates. |
| Medical Diagnostic Device Logging | Automotive Infotainment Cache |
|
Use Scenario: Capturing time-stamped sensor logs and diagnostic snapshots in portable ultrasound and ECG units with strict power budgets. IC Role / Device Role / Timing Role: Low-power data logger using Deep Power-down (B9h) mode (<10 µA) between acquisitions; /HOLD pin preserves context during CPU sleep. Use Value: 1.7–1.95 V operation aligns with battery-backed 1.8 V rails; 10-year data retention ensures audit-compliant long-term storage. |
Use Scenario: Caching map tiles and UI assets in automotive infotainment head units requiring AEC-Q100 Grade 3 qualification. IC Role / Device Role / Timing Role: High-bandwidth cache memory interfacing with application processor via Quad I/O at 166 MHz STR for <50 µs random-access latency. Use Value: TFBGA-24 package enables dense layout; DTR support allows future upgrade to higher throughput without PCB redesign. |
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 |
|---|---|---|---|
| W25N01JWSFIM | Same die, SOIC-16 (300-mil) package; no /RESET pin; /HOLD and /WP fixed function (not remappable as IO2/IO3). | Limited to legacy PCBs with SOIC footprints; lacks TFBGA thermal performance and Quad I/O flexibility. | Select W25N01JWSFIM only when retrofitting existing SOIC layouts without redesign. |
| MT29F1G08ABAEAWP-AITX | 1G-bit SLC NAND with ONFI 2.3 interface; parallel x8 bus; 3.3 V supply; no SPI/DTR support. | Requires dedicated NAND controller and ECC engine; incompatible with SPI-only hosts. | Choose MT29F1G08ABAEAWP-AITX only when system already uses ONFI-based controllers and needs higher raw bandwidth than SPI permits. |
Compared with W25N01JWSFIM, W25N01JWTBIT offers superior thermal dissipation and Quad/DTR protocol support in TFBGA; compared with MT29F1G08ABAEAWP-AITX, it eliminates NAND controller dependency and reduces BOM cost but trades peak bandwidth for interface simplicity and footprint efficiency.
Availability
W25N01JWTBIT is available at Aetrix Electronics and suitable for industrial HMI firmware storage, edge gateway boot memory, and medical diagnostic device logging requiring stable component supply, long-lifecycle availability, and AEC-Q100-aligned reliability.
Supply support for W25N01JWTBIT 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 TrustME secure flash products.
The W25N SpiFlash family was designed to bring NAND density and cost-per-bit advantages to SPI-based embedded systems-enabling code execution, firmware updates, and data logging without requiring complex NAND controllers.
FAQ
What is the default read mode for W25N01JWTBIT at power-up?
W25N01JWTBIT powers up in Continuous Read Mode (BUF=0), as indicated by its "T" suffix in the part number. This mode allows direct sequential access across page boundaries using a single Read instruction, reducing command overhead in boot and streaming applications. The mode can be changed to Buffer Read (BUF=1) by writing to Status Register-2 (Bxh), bit BUF (bit 5), but defaults revert after reset or power cycle.
Does W25N01JWTBIT support Quad SPI and DTR simultaneously?
Yes, W25N01JWTBIT supports Quad I/O operation with DTR timing. When Quad Enable (QE) is set and DTR-capable instructions (e.g., EDh, EEh) are issued, data and addresses are transferred on both clock edges across all four IO lines-achieving up to 80 MHz DTR clock rate and 640 MB/s effective bandwidth. This capability is validated in the AC Electrical Characteristics section (Section 9.6) of the datasheet.
How is Bad Block Management implemented in W25N01JWTBIT?
W25N01JWTBIT implements hardware-assisted Bad Block Management using an on-die Look-Up Table (LUT) stored in dedicated spare area. Invalid blocks are flagged during factory test or runtime failure; the LUT is accessed via instruction A5h. Host firmware can read the LUT to avoid mapping bad blocks into logical address space, and use A1h to manage new bad block discovery during program/erase operations.
What package options are available for W25N01JWTBIT?
W25N01JWTBIT is specifically offered in the 24-ball TFBGA 8×6-mm package (package code TB, 5×5-1 ball array), as confirmed by the top-side marking "JWTBIT" and ordering information table. Other variants like W25N01JWZEIM (WSON-8) and W25N01JWSFIM (SOIC-16) exist in the same family but differ in pin count, thermal performance, and feature support (e.g., /RESET presence).
Can the 10 OTP pages in W25N01JWTBIT be erased or rewritten?
No, the ten 2,048-byte OTP pages in W25N01JWTBIT are one-time programmable and cannot be erased or rewritten after programming. Once a bit is set to '0', it remains '0' permanently; '1' bits may be changed to '0' during programming, but never vice versa. This immutability ensures cryptographic keys, calibration data, or device IDs stored in OTP remain tamper-resistant throughout the product lifecycle.
W25N01JWTBIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 24-TBGA
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NAND (SLC)
- Memory Size:
- 1Gbit
- Memory Organization:
- 128M x 8
- Memory Interface:
- SPI - Quad I/O, 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:
- 24-TFBGA (8x6)
W25N01JWTBIT FAQ
1.How can I place an order for W25N01JWTBIT through Aetrix?
Please submit a Request for Quotation (RFQ) for W25N01JWTBIT 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 W25N01JWTBIT reliable?
The price and inventory of W25N01JWTBIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25N01JWTBIT is usually 5 days.
3.What payment methods are accepted for W25N01JWTBIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25N01JWTBIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25N01JWTBIT?
W25N01JWTBIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25N01JWTBIT 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 W25N01JWTBIT?
For technical support, including W25N01JWTBIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25N01JWTBIT requirements.
6.How does Aetrix verify that W25N01JWTBIT is sourced from the original manufacturer or authorized distributors?
All W25N01JWTBIT 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 W25N01JWTBIT meets industry standards.
7.What is the process for return or replacement of W25N01JWTBIT?
All W25N01JWTBIT units undergo pre-shipment inspection (PSI). If there is an issue with W25N01JWTBIT, 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 W25N01JWTBIT part is unused and in its original packaging.
Return procedure for W25N01JWTBIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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