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Winbond Electronics Corporation W25N512GVEIT
- Part No.:
- W25N512GVEIT
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
W25N512GVEIT.pdf
- Description:
- IC FLASH 512MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,639
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Product details
Overview
W25N512GVEIT from Winbond is a 512M-bit (64MB) Serial SLC NAND Flash memory with Dual/Quad SPI interface, organized as 32,768 pages × 2,048 bytes, supporting 128KB uniform block erase and on-chip 1-bit ECC. It operates from 2.7V to 3.6V, delivers up to 50MB/s continuous read throughput in Continuous Read Mode, and targets embedded code storage and data logging in space-constrained industrial controllers.
For engineers reviewing the W25N512GVEIT datasheet, W25N512GVEIT pinout, W25N512GVEIT application, or W25N512GVEIT equivalent, key selection considerations include its BUF-mode default (G/T/R variants), 166MHz max SPI clock, hardware/software write protection, OTP page support, and TFBGA-24 (8×6-mm) package compatibility with industrial temperature range (−40°C to +85°C).
Technical Context
The W25N512GVEIT implements a dedicated NAND flash architecture with internal 2,048-byte buffer for page programming and supports two distinct read modes: Buffer Read (default for G/R suffixes) and Continuous Read (default for T suffix). Its command set includes JEDEC-compliant SPI instructions plus NAND-specific operations like Bad Block Management (A1h) and BBM Look-Up Table access (A5h).
It integrates configurable registers including volatile Protection Register (SR-1), Configuration Register (SR-2), and status-only SR-3 - enabling ECC enable/disable (ECC-E), buffer mode selection (BUF), output driver strength (ODS), and OTP access control (OTP-E). Write protection combines hardware (/WP, /HOLD) with software (BP bits, SRP bits) and OTP lockability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 512 M-bit (64 MB), organized as 32,768 × 2,048-byte pages |
| Interface | Dual/Quad SPI with standard, fast, and quad I/O read commands; supports up to 166 MHz CLK |
| Read Throughput | 50 MB/s continuous transfer rate in Continuous Read Mode (BUF=0) |
| Erase/Program Endurance | 100,000 cycles with on-chip 1-bit ECC correction (1 bit per 528 bytes) |
| Data Retention | 10 years at +85°C; guaranteed under industrial temperature operation |
| Power Supply | Single 2.7 V – 3.6 V supply; 25 mA active, 10 µA standby, 1 µA deep power-down current |
| Operating Temperature | −40°C to +85°C (industrial grade); validated for extended thermal cycling |
| Package | 24-ball TFBGA (8×6 mm, 5×5 ball array, package code B), RoHS-compliant |
Pinout & Package
W25N512GVEIT is packaged in a 24-ball TFBGA (8×6 mm, 5×5 ball array, package code B), with 18 functional balls and 6 no-connect (NC) positions. The package supports automated optical inspection and fine-pitch PCB assembly for high-density embedded designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| B2 | CLK | Input: Serial clock signal; rising edge latches input data, falling edge samples output data |
| B3 | GND | Ground reference for all I/O and core logic; requires low-impedance PCB plane connection |
| B4 | VCC | Primary power supply (2.7–3.6 V); decoupling capacitor (0.1 µF) required within 5 mm |
| C2 | /CS | Input: Active-low chip select; must transition high→low before instruction acceptance post-power-up |
| C4 | /WP (IO2) | I/O: Hardware write protect input when WP-E=1; otherwise functions as Quad SPI data line IO2 |
| D2 | DO (IO1) | I/O: Data output in Standard/Dual SPI; bidirectional data line IO1 in Quad SPI |
| D3 | DI (IO0) | I/O: Data input in Standard/Dual SPI; bidirectional data line IO0 in Quad SPI |
| D4 | /HOLD (IO3) | I/O: Pauses ongoing serial transfer when asserted low; serves as Quad SPI data line IO3 when inactive |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode (BUF=0) | Enables single-command sequential access across full memory array-eliminates repeated Page Data Read overhead for firmware shadowing |
| On-chip 1-bit ECC | Hardware-corrects single-bit errors per 528-byte sector; ECC status bits (ECC-1/ECC-0) report correction events without host intervention |
| Configurable Write Protection | Combines hardware pins (/WP, /HOLD), volatile BP[3:0] bits, OTP-lockable SRP[1:0], and WP-E control for granular 128KB-block or full-array lockdown |
| Bad Block Management (BBM) | Host-accessible LUT (Look-Up Table) stores invalid block addresses; A1h/A5h instructions enable runtime detection and mapping |
| OTP & Unique ID Pages | Ten 2KB one-time-programmable pages + one 2KB Unique ID page for secure device identification and calibration data storage |
| Deep Power-Down (B9h) | Reduces current to 1 µA while preserving memory contents; wake-up via /CS pulse (ABh) with <10 µs exit time |
Applications
| Industrial PLC Firmware Storage | Medical Device Data Logging |
|---|---|
|
Use Scenario: Storing boot firmware and configuration tables in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable Dual/Quad SPI interface enabling direct execution from flash memory. Use Value: 100,000 program/erase cycles and 10-year retention ensure firmware integrity over multi-year equipment lifecycles without refresh. |
Use Scenario: Capturing timestamped sensor readings (ECG, SpO₂) in portable diagnostic instruments with battery-powered operation. IC Role / Device Role / Timing Role: High-reliability data recorder using Continuous Read Mode for rapid retrieval of historical patient records. Use Value: 50 MB/s read bandwidth and on-chip ECC reduce host CPU load and eliminate external error-correction logic. |
| Smart Meter Firmware Update | Automotive Infotainment Boot Image |
|
Use Scenario: Secure over-the-air (OTA) firmware updates in utility smart meters operating across wide temperature ranges. IC Role / Device Role / Timing Role: Trusted storage for signed firmware images with OTP pages used to store cryptographic keys and update counters. Use Value: Hardware write protection (SRP/BP bits + /WP pin) prevents unauthorized modification during field deployment. |
Use Scenario: Storing boot loader and OS kernel images in automotive head units requiring AEC-Q100-aligned reliability. IC Role / Device Role / Timing Role: Primary boot memory interfaced via Quad SPI to SoC with tight timing budgets and minimal pin count. Use Value: TFBGA-24 package enables compact layout; −40°C to +85°C rating meets automotive cabin ambient requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar Serial NAND Flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MT29F512G08CFAAAWP-IT | 512Gb (64GB) Toggle Mode 2.0 NAND; parallel interface (x8), not SPI; requires NAND controller | Requires external ECC engine and complex bad-block management; unsuitable for SPI-only hosts | Select only if migrating from legacy parallel NAND and adding dedicated NAND controller IC |
| IS25LP512M-RMLE | 512Mb Quad SPI NOR Flash; no ECC, no BBM, no OTP pages; 3V, 133MHz max clock | Limited to ≤128MB density; lacks NAND-level endurance and wear leveling; no continuous read mode | Choose for simpler code storage where NAND features (ECC, BBM, large capacity) are unnecessary |
Compared with MT29F512G08CFAAAWP-IT and IS25LP512M-RMLE, W25N512GVEIT uniquely delivers SPI-native NAND functionality - combining high density, built-in ECC, BBM, and Continuous Read Mode - without requiring external controller logic or sacrificing pin-efficiency.
Availability
W25N512GVEIT is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device data logging, smart meter OTA updates, and automotive infotainment boot image storage requiring stable component supply across extended product lifecycles.
Supply support for W25N512GVEIT 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 flash, RAM, and TrustME secure memory products.
The W25N SpiFlash family was designed specifically to bring NAND density and cost efficiency to SPI-based embedded systems - eliminating the need for complex NAND controllers while retaining ECC, BBM, and industrial-grade reliability in compact packages.
FAQ
What is the default read mode for W25N512GVEIT after power-up?
The W25N512GVEIT defaults to Buffer Read Mode (BUF = 1) after power-up, as indicated by its "G" suffix in the part number. This setting enables faster random-access reads using the internal 2,048-byte buffer. To use Continuous Read Mode, the BUF bit in Status Register-2 must be cleared via Write Status Register instruction (1Fh), and the device must be reinitialized.
Does W25N512GVEIT support Quad SPI commands with hardware write protection enabled?
Yes, W25N512GVEIT supports Quad SPI commands (e.g., EBh Fast Read Quad I/O) even when /WP and /HOLD pins are active, because those pins serve dual roles: /WP functions as IO2 and /HOLD as IO3 in Quad SPI mode. Hardware write protection only affects Status Register writes when WP-E = 1 - it does not disable Quad I/O functionality on the same pins.
How is bad block management implemented in W25N512GVEIT?
W25N512GVEIT implements bad block management via an internal Look-Up Table (LUT) accessible through instruction A5h. The LUT stores physical addresses of factory-invalid and field-detected bad blocks. Host firmware uses A1h (Bad Block Management) to mark new bad blocks and A5h to read the full LUT, enabling transparent remapping without modifying application-layer logic.
What is the purpose of the ten 2KB OTP pages in W25N512GVEIT?
The ten 2KB OTP (One-Time Programmable) pages in W25N512GVEIT are used to permanently store calibration data, security keys, device-specific identifiers, or firmware version locks. Once programmed, OTP pages cannot be erased or rewritten - ensuring tamper-resistant storage for critical system parameters that must survive field updates and lifecycle changes.
Can W25N512GVEIT operate reliably at 166MHz SPI clock frequency across its full temperature range?
Yes, W25N512GVEIT is fully characterized for 166MHz SPI clock operation from −40°C to +85°C. AC timing parameters (tCH, tCL, tSU, tH) are guaranteed across this range per Section 9.6 of the datasheet, and the device supports Fast Read Quad I/O (EBh) at this rate - delivering up to 664 Mbps effective bandwidth (166MHz × 4) in Quad mode.
W25N512GVEIT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NAND (SLC)
- Memory Size:
- 512Mbit
- Memory Organization:
- 64M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 166 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)
W25N512GVEIT FAQ
1.How can I place an order for W25N512GVEIT through Aetrix?
Please submit a Request for Quotation (RFQ) for W25N512GVEIT 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 W25N512GVEIT reliable?
The price and inventory of W25N512GVEIT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25N512GVEIT is usually 5 days.
3.What payment methods are accepted for W25N512GVEIT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25N512GVEIT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25N512GVEIT?
W25N512GVEIT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25N512GVEIT 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 W25N512GVEIT?
For technical support, including W25N512GVEIT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25N512GVEIT requirements.
6.How does Aetrix verify that W25N512GVEIT is sourced from the original manufacturer or authorized distributors?
All W25N512GVEIT 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 W25N512GVEIT meets industry standards.
7.What is the process for return or replacement of W25N512GVEIT?
All W25N512GVEIT units undergo pre-shipment inspection (PSI). If there is an issue with W25N512GVEIT, 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 W25N512GVEIT part is unused and in its original packaging.
Return procedure for W25N512GVEIT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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