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Winbond Electronics Corporation W25P10VSNIG
- Part No.:
- W25P10VSNIG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
W25P10VSNIG.pdf
- Description:
- IC FLASH 1MBIT SPI 40MHZ 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:2,752
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Product details
Overview
W25P10VSNIG from Winbond is a 1M-bit (128KB) serial Flash memory IC designed for SPI-based embedded code storage and data logging. It operates on a single 2.7–3.6V supply, supports 40MHz Fast Read, features hardware/software write protection via /WP pin and status register, and is packaged in an 8-pin SOIC 150-mil (SN) for space-constrained microcontroller systems.
For engineers reviewing the W25P10VSNIG datasheet, W25P10VSNIG pinout, W25P10VSNIG application, or W25P10VSNIG equivalent, this page delivers verified electrical specs, SPI timing compliance (Modes 0/3), sector-level erase control, power-down mode (1µA), and boot-sector organization - all critical for firmware update reliability and low-power IoT design.
Technical Context
The W25P10VSNIG implements a standard SPI interface with four dedicated signals (CLK, /CS, DI, DO), plus /WP and /HOLD for hardware-controlled protection and bus arbitration. Its internal architecture includes a 512-page × 256-byte array (131,072 bytes total), organized into two 64KB erasable sectors, with bottom-boot memory mapping.
It supports full instruction set compatibility with legacy NexFlash NX25P10, including Page Program (≤256B, <2ms), Sector Erase (2s), Chip Erase (3s), and status register access (BUSY, WEL, BP0–BP1, SRP). Write Enable Latch (WEL) auto-clears after program/erase, and /HOLD suspends active transfers without resetting internal state.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 1 M-bit (131,072 bytes), organized as 512 pages × 256 bytes |
| Interface | 4-wire SPI (CLK, /CS, DI, DO); compatible with Modes 0 and 3 |
| Max Clock Frequency | 40 MHz Fast Read - enables ≤25 ns instruction fetch latency in µC boot code |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3V logic domains and brown-out tolerant |
| Active Current | 4 mA typical - supports low-duty-cycle firmware read operations in battery-powered devices |
| Power-down Current | 1 µA typical - maintains data integrity while minimizing standby drain |
| Erase/Write Endurance | 100,000 cycles - ensures field-upgrade viability over product lifetime |
| Data Retention | 20 years at +25°C - meets industrial-grade non-volatile storage requirements |
Pinout & Package
W25P10VSNIG is housed in an 8-pin plastic SOIC package with 150-mil body width (Winbond package code SN). Pin assignments are standardized across the W25P family and validated per Figure 1 of the official datasheet (Rev. M, Nov 2005).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable: drives DO to high-Z when high; required low-to-high transition after power-up to accept instructions |
| DO | Serial Data Output | Tri-state output: data shifted out on CLK falling edge; high-Z during /HOLD or /CS high |
| /WP | Write Protect Input | Active-low hardware lock: disables Status Register writes when SRP=1 and /WP=low |
| GND | Ground Reference | Signal and power return path; must be low-impedance for stable SPI timing and noise immunity |
| DI | Serial Data Input | Instruction/address/data input: latched on CLK rising edge; MSB-first protocol |
| CLK | Serial Clock Input | Master-generated timing signal: defines data setup/hold windows; supports idle-low (Mode 0) or idle-high (Mode 3) |
| /HOLD | Hold Input | Active-low pause control: freezes ongoing SPI transfer without resetting internal state; enables multi-device bus sharing |
| VCC | Power Supply | Single 2.7–3.6V supply; internal voltage regulator ensures consistent core operation across rail range |
Key Features
| Feature | Design Value |
|---|---|
| Bottom Boot Sector Organization | Ensures reset vector and bootloader code reside in lowest-addressed sector - critical for reliable µC cold-start execution |
| Hardware + Software Write Protection | Combines /WP pin control with programmable BP0/BP1 bits and SRP to protect boot code from accidental overwrite during field updates |
| Auto-Increment Read Capability | Enables continuous sequential reads without reissuing address bytes - reduces SPI overhead for firmware image streaming |
| Power-down Mode with Release ID | Reduces current to 1 µA; ABh instruction exits sleep and returns Device ID (10h) - simplifies wake-up verification in ultra-low-power systems |
| Manufacturer & Device ID Support | 90h instruction returns EFh (Winbond) + 10h (W25P10) - enables runtime part validation and BOM traceability in production firmware |
Applications
| Industrial PLC Firmware Storage | Medical Sensor Data Logger |
|---|---|
Use Scenario: Storing firmware images and configuration tables in programmable logic controllers operating in harsh EMI environments. IC Role / Device Role / Timing Role: Non-volatile code storage with deterministic 40MHz SPI read access and hardware write lock during runtime. Use Value: Prevents corruption during power transients using /WP pin + SRP-enabled status register protection, ensuring certified firmware integrity per IEC 61131-3. | Use Scenario: Capturing time-stamped physiological readings (ECG, SpO₂) in portable diagnostic devices between wireless uploads. IC Role / Device Role / Timing Role: Low-power data buffer with 1µA sleep current and fast 256-byte page writes for burst acquisition. Use Value: Enables >1-year battery life via power-down mode and minimizes write latency with <2ms page programming - critical for real-time sensor buffering. |
| Smart Meter Bootloader | Automotive Body Control Module |
Use Scenario: Hosting secure, upgradable bootloader code in utility meters requiring remote firmware patches over narrowband PLC links. IC Role / Device Role / Timing Role: Bottom-boot Flash memory with verified 100,000-cycle endurance and 20-year data retention at elevated temperatures. Use Value: Guarantees bootloader persistence across 15+ years of field service and repeated OTA updates without degradation. | Use Scenario: Storing calibration parameters and diagnostic event logs in automotive BCMs operating across -40°C to +85°C ambient. IC Role / Device Role / Timing Role: AEC-Q100-unqualified but automotive-grade serial Flash with extended temperature support and robust SPI timing margins. Use Value: Delivers reliable parameter storage under thermal cycling stress, validated by Winbond's -40°C to +85°C operating range specification. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial Flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AT25DF011-SSHN-B | 1M-bit SPI Flash, 85MHz max clock, 2.7–3.6V, SOIC-8; supports dual I/O and deep power-down (0.5µA) | Higher speed and lower sleep current, but lacks /HOLD pin and uses different status register layout | Select when system requires faster read throughput or deeper sleep, and can accommodate register reconfiguration |
| MX25L1006EZN-12G | 1M-bit SPI Flash, 80MHz max clock, 2.7–3.6V, SOIC-8; includes quad I/O mode and enhanced security registers | Supports QPI for bandwidth scaling, but requires additional GPIO for QUAD enable and has different WP/HOLD behavior | Select when future-proofing for higher-density migration or needing quad-mode flexibility in next-gen designs |
Compared with AT25DF011-SSHN-B and MX25L1006EZN-12G, the W25P10VSNIG offers proven /HOLD functionality for multi-device SPI arbitration and simpler status register protection logic - advantageous in cost-sensitive, resource-constrained MCU designs where pin count and firmware complexity are critical.
Availability
W25P10VSNIG is available at Aetrix Electronics and suitable for industrial control firmware storage, portable medical data logging, and automotive body electronics requiring stable component supply and long-term obsolescence management.
Supply support for W25P10VSNIG 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 DRAM, Flash memory, and mobile chips since 1987.
The W25P series was engineered as a drop-in replacement for NexFlash serial Flash, targeting cost-effective, low-pin-count code storage in microcontroller-based systems with strict power and footprint constraints.
FAQ
What is the exact memory organization of the W25P10VSNIG?
The W25P10VSNIG contains 1 M-bit (131,072 bytes) of Flash memory, organized into 512 programmable pages of 256 bytes each. These pages are grouped into two 64KB erasable sectors (Sector 0: 000000h–00FFFFh; Sector 1: 010000h–01FFFFh), with bottom-boot configuration ensuring the reset vector resides in the lowest-addressed sector. This structure is confirmed in Section 1 and Figure 2 of the official datasheet.
Does the W25P10VSNIG support SPI Mode 3, and how is it implemented?
Yes, the W25P10VSNIG supports both SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1), as explicitly stated in Section 6.1.1. In Mode 3, the Serial Clock (CLK) idles high; data on DI is sampled on the rising edge, and data on DO is clocked out on the falling edge - matching standard SPI master configurations used in ARM Cortex-M and PIC microcontrollers.
How does hardware write protection work on the W25P10VSNIG?
Hardware write protection on the W25P10VSNIG combines the /WP pin with the Status Register Protect (SRP) bit. When SRP=1 and /WP is driven low, writes to the status register (including Block Protect bits) are disabled. This prevents accidental modification of protection settings during power transitions or noise events, and is detailed in Sections 4.4 and 7.1.5 of the datasheet.
What is the purpose of the /HOLD pin on the W25P10VSNIG, and when should it be used?
The /HOLD pin on the W25P10VSNIG pauses an active SPI transaction without resetting internal state - essential when multiple peripherals share the same SPI bus. For example, if a high-priority interrupt requires immediate bus access during a Page Program, /HOLD freezes the transfer so it resumes exactly where it left off. This behavior is defined in Sections 4.5 and 6.1.2.
Can the W25P10VSNIG be used as a direct replacement for the NexFlash NX25P10?
Yes, the W25P10VSNIG is fully compatible with the NexFlash NX25P10, as confirmed in the first paragraph of Section 1 and the title page: "The Winbond W25P10/20/40 are fully compatible with the previous NexFlash NX25P10/20/40 Serial Flash memories." Pinout, instruction set, timing, and electrical characteristics match identically - enabling seamless migration without PCB or firmware changes.
W25P10VSNIG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH
- Memory Size:
- 1Mbit
- Memory Organization:
- 128K x 8
- Memory Interface:
- SPI
- Clock Frequency:
- 40 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25P10VSNIG FAQ
1.How can I place an order for W25P10VSNIG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25P10VSNIG 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 W25P10VSNIG reliable?
The price and inventory of W25P10VSNIG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25P10VSNIG is usually 5 days.
3.What payment methods are accepted for W25P10VSNIG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25P10VSNIG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25P10VSNIG?
W25P10VSNIG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25P10VSNIG 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 W25P10VSNIG?
For technical support, including W25P10VSNIG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25P10VSNIG requirements.
6.How does Aetrix verify that W25P10VSNIG is sourced from the original manufacturer or authorized distributors?
All W25P10VSNIG 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 W25P10VSNIG meets industry standards.
7.What is the process for return or replacement of W25P10VSNIG?
All W25P10VSNIG units undergo pre-shipment inspection (PSI). If there is an issue with W25P10VSNIG, 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 W25P10VSNIG part is unused and in its original packaging.
Return procedure for W25P10VSNIG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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