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Winbond Electronics Corporation W25N512GVPIG
- Part No.:
- W25N512GVPIG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
W25N512GVPIG.pdf
- Description:
- IC FLASH 512MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,486
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Product details
Overview
W25N512GVPIG from Winbond is a 512M-bit (64MB) Serial SLC NAND Flash memory with Dual/Quad SPI interface, organized as 32,768 × 2,048-byte pages and 512 × 128KB uniform erase blocks. It supports 166MHz SPI clocking (332MHz dual, 664MHz quad), 50MB/s continuous read throughput, on-chip 1-bit ECC, and operates from 2.7V–3.6V for embedded code shadowing and data storage in space-constrained industrial controllers.
For engineers reviewing the W25N512GVPIG datasheet, W25N512GVPIG pinout, W25N512GVPIG application, or W25N512GVPIG equivalent, key selection considerations include buffer vs. continuous read mode configuration (BUF=1 default), hardware write-protect (/WP & /HOLD) support, JEDEC ID compatibility, OTP page availability, and WSON 8-pin 6×5-mm package footprint constraints.
Technical Context
The W25N512GVPIG implements a true serial NAND architecture with integrated bad block management (BBM) via LUT access, configurable ECC enable/disable (ECC-E bit), and dual operational modes: Buffer Read (default at power-up) and Continuous Read (BUF=0). Its instruction set fully supports standard, dual, and quad I/O SPI protocols-including Fast Read Quad I/O (6Bh/6Ch) and Quad Load Program Data (32h/34h)-with identical command structures across modes except for Read command framing.
It features three volatile/OTP-configurable status registers: SR-1 (protection/lock bits), SR-2 (ECC enable, BUF mode, driver strength, hold disable), and SR-3 (ECC status, P-FAIL/E-FAIL, BUSY). The device uses internal 2KB buffers for page programming and supports 4-byte addressing for >16MB addressing space, enabling seamless integration into 32-bit MCU host systems without external address latching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 512 M-bit (64 MB), organized as 32,768 pages × 2,048 bytes/page |
| Interface Speed | Up to 166 MHz SPI clock; enables 664 MHz effective quad-I/O bandwidth |
| Erase Granularity | Uniform 128 KB blocks (512 total blocks); no partial-block erase |
| Data Retention | 10 years at +85°C; validated with on-chip 1-bit ECC correction |
| Endurance | 100,000 program/erase cycles per block, dependent on ECC usage |
| Power Supply | Single 2.7 V–3.6 V supply; 25 mA active, 10 µA standby, 1 µA deep power-down |
| Operating Temp | –40°C to +85°C industrial grade; specified across full voltage range |
Pinout & Package
W25N512GVPIG is packaged in an 8-pad WSON 6×5-mm (Package Code P), with exposed thermal pad (non-electrical). Pin 1 is /CS; pins 2–3–5–7 are bidirectional I/Os (IO1/IO2/IO0/IO3); pin 4 is GND; pin 6 is CLK; pin 8 is VCC.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable; must transition high→low before new instruction acceptance; controls DO/IO pin impedance state |
| DO (IO1) | Serial Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI; used for status/data reads |
| /WP (IO2) | Write Protect Input / I/O2 | Hardware lock for Status Register when WP-E=1; functions as IO2 in Quad SPI when WP-E=0 |
| GND | Ground Reference | Primary return path for VCC and all I/O signals; requires low-impedance PCB connection |
| DI (IO0) | Serial Data Input / I/O0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI; carries instructions/addresses/data |
| CLK | Serial Clock Input | Master-controlled timing reference; rising edge for input sampling, falling edge for output sampling |
| /HOLD (IO3) | Hold Input / I/O3 | Suspends ongoing serial transfer without deselecting device; functions as IO3 only in Quad SPI when H-DIS=0 |
| VCC | Power Supply | 2.7–3.6 V supply; requires local 1 µF + 0.1 µF decoupling near pin 8 |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | Enables single-command sequential access across full memory array-eliminates need for repeated Page Data Read commands in code shadowing |
| Configurable ECC | ECC-E bit in SR-2 allows runtime enable/disable of on-chip 1-bit error correction, balancing reliability vs. latency in field-deployed firmware |
| Dual/Quad SPI Flexibility | Same pin set supports Standard/Dual/Quad protocols; IO0–IO3 repurpose dynamically based on instruction opcode and BUF mode |
| OTP & Unique ID Pages | Includes ten 2KB one-time-programmable pages and one 2KB unique ID page-enables secure device binding and calibration data storage |
| Hardware Write Protection | /WP and /HOLD pins provide physical lockout of status register writes when WP-E=1 and SRP bits are set, independent of software control |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Image |
|---|---|
Use Scenario: Storing firmware images and configuration tables in DIN-rail mounted programmable logic controllers with limited PCB area and no parallel bus interface. IC Role / Device Role / Timing Role: Non-volatile boot memory mapped via SPI XIP or shadow-loaded to RAM; accessed using Fast Read Quad I/O for rapid startup. Use Value: 50 MB/s continuous read rate reduces boot time by >40% vs. legacy SPI NOR; 128KB uniform blocks simplify OTA update partitioning and wear leveling. | Use Scenario: Holding certified bootloader, cryptographic keys, and device-specific calibration parameters in Class IIa medical imaging peripherals. IC Role / Device Role / Timing Role: Secure storage element with OTP pages for immutable keys and Unique ID for traceability; accessed via Dual SPI during secure boot sequence. Use Value: On-chip 1-bit ECC ensures data integrity over 10-year service life; hardware /WP protection prevents accidental register corruption during ESD events. |
| Smart Energy Meter Data Logging | Automotive Infotainment UI Assets |
Use Scenario: Recording time-stamped consumption logs, tariff schedules, and firmware patches in utility-grade smart meters operating at –40°C to +85°C. IC Role / Device Role / Timing Role: High-endurance data logger using 100K-cycle blocks; leverages BBM LUT access to skip invalid sectors during long-term cyclic writes. Use Value: 100,000 P/E cycles with ECC extends usable lifetime beyond 15 years; deep power-down (1 µA) minimizes battery drain during meter sleep mode. | Use Scenario: Caching GUI assets (fonts, icons, animations) in automotive head units where SPI bandwidth limits display responsiveness. IC Role / Device Role / Timing Role: High-throughput asset cache accessed via Continuous Read Mode to stream UI resources without CPU intervention. Use Value: Eliminates inter-page command overhead-reduces average read latency by 3.2× vs. Buffer Read mode for sequential asset loading. |
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 |
|---|---|---|---|
| MT29F512G08CFAAAWP-IT:F | 512Gb (64GB) Toggle Mode 2.0 NAND; parallel interface with ONFI 3.2 timing; requires NAND controller | Targeted for SSDs and eMMC modules-not pin-compatible or protocol-compatible with SPI hosts | Select only if migrating from SPI to embedded NAND controller with dedicated ECC engine and BBM firmware |
| GD5F512M8EFIGR | 512Mb (64MB) Serial NAND; SPI interface; 100MHz max clock; no Continuous Read Mode; 1-bit ECC only in specific configurations | Lacks BUF-mode flexibility and 166MHz performance; lower cost but higher read latency in streaming use cases | Choose for cost-sensitive consumer applications where 50MB/s throughput and dual-mode read are not required |
Compared with MT29F512G08CFAAAWP-IT:F, W25N512GVPIG eliminates NAND controller dependency and simplifies BOM; versus GD5F512M8EFIGR, it delivers 66% higher SPI bandwidth and deterministic low-latency sequential access via Continuous Read Mode-critical for real-time boot and UI rendering.
Availability
W25N512GVPIG is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot image retention, and smart energy meter data logging requiring stable component supply, long-life qualification, and guaranteed obsolescence management.
Supply support for W25N512GVPIG 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.
The W25N SpiFlash family was designed specifically to bring NAND density and cost-efficiency to SPI-bus constrained systems-enabling code execution, data logging, and firmware updates without parallel interface complexity.
FAQ
What is the default read mode for W25N512GVPIG at power-up?
W25N512GVPIG powers up in Buffer Read Mode (BUF=1) by default, as indicated by its 'G' suffix in the part number W25N512GVxxG/T/R. This mode requires explicit Page Data Read (13h) commands before each data fetch. To enable Continuous Read Mode, the BUF bit (bit 0 of SR-2) must be cleared via Write Status Register (1Fh) instruction. The mode affects only Read command structure-not other instructions.
Does W25N512GVPIG support Quad SPI operation with hardware write protection enabled?
Yes, W25N512GVPIG supports Quad SPI operation even when hardware write protection is active-but /WP and /HOLD pins revert to I/O2 and I/O3 functions only when WP-E = 0 in SR-1. When WP-E = 1, those pins retain their protection roles and cannot be used for Quad I/O. Thus, full Quad SPI functionality requires configuring WP-E = 0 and relying on software-based block protection (BP bits) instead of hardware pin locking.
How is bad block management implemented in W25N512GVPIG?
W25N512GVPIG implements factory-initialized bad block management using an internal Look-Up Table (LUT) stored in dedicated reserved blocks. The LUT-F status bit (SR-3) indicates LUT fullness. Users access the table via Read BBM LUT (A5h) instruction. Initial invalid blocks are pre-mapped at manufacturing; additional blocks marked invalid during field use are added to the LUT dynamically. No external BBM firmware is required-the device handles remapping transparently during program/erase operations.
What is the purpose of the ten 2KB OTP pages in W25N512GVPIG?
The ten 2KB OTP (One-Time Programmable) pages in W25N512GVPIG are physically irreversible memory regions used for storing immutable data such as cryptographic keys, device calibration constants, regulatory certification hashes, or secure boot seeds. Once programmed, they cannot be erased or rewritten-even with bulk erase commands. Access requires setting OTP-E = 1 in SR-2, and programming is performed using standard Load Program Data (02h) followed by Program Execute (10h) sequences under OTP access mode.
Can W25N512GVPIG be used for XIP (eXecute-In-Place) applications?
Yes, W25N512GVPIG supports XIP via Dual/Quad SPI interfaces using Fast Read Dual/Quad I/O instructions (BBh/EBh), enabling direct code execution from flash without shadowing to RAM. However, due to NAND's page-based architecture and lack of true random access, XIP performance depends on instruction locality and prefetch efficiency. For deterministic real-time execution, Continuous Read Mode is recommended to minimize command overhead during sequential code fetches-making W25N512GVPIG viable for non-critical firmware layers and UI assets, though not for hard real-time ISRs.
W25N512GVPIG 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 (6x5)
W25N512GVPIG FAQ
1.How can I place an order for W25N512GVPIG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25N512GVPIG 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 W25N512GVPIG reliable?
The price and inventory of W25N512GVPIG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25N512GVPIG is usually 5 days.
3.What payment methods are accepted for W25N512GVPIG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25N512GVPIG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25N512GVPIG?
W25N512GVPIG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25N512GVPIG 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 W25N512GVPIG?
For technical support, including W25N512GVPIG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25N512GVPIG requirements.
6.How does Aetrix verify that W25N512GVPIG is sourced from the original manufacturer or authorized distributors?
All W25N512GVPIG 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 W25N512GVPIG meets industry standards.
7.What is the process for return or replacement of W25N512GVPIG?
All W25N512GVPIG units undergo pre-shipment inspection (PSI). If there is an issue with W25N512GVPIG, 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 W25N512GVPIG part is unused and in its original packaging.
Return procedure for W25N512GVPIG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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