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Winbond Electronics Corporation W25Q16DVSNIG
- Part No.:
- W25Q16DVSNIG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
W25Q16DVSNIG.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,859
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Product details
Overview
W25Q16DVSNIG from Winbond is a 16 M-bit (2 MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces with 104 MHz clock capability, 4 KB uniform sector architecture, and 2.7–3.6 V single-supply operation - used for code execution-in-place (XIP), firmware storage, and parameter retention in microcontroller-based embedded systems.
For engineers reviewing the W25Q16DVSNIG datasheet, W25Q16DVSNIG pinout, W25Q16DVSNIG application, or W25Q16DVSNIG equivalent, key selection criteria include Quad SPI enable (QE bit), 4 KB sector erase granularity, hardware write protection via /WP and /HOLD pins, and compatibility with SPI Mode 0/3 timing requirements in space-constrained industrial and consumer designs.
Technical Context
The W25Q16DVSNIG implements a SPI-compatible command set with dedicated status registers (SR1/SR2) controlling erase/program protection, sector locking, and Quad Enable (QE) activation. Its internal architecture includes a 256-byte page buffer, 512 erasable 4 KB sectors, and 32 erasable 64 KB blocks, enabling flexible firmware partitioning and over-the-air update support.
It supports continuous read mode with as few as 8 clocks overhead per address access and delivers up to 52 MB/s effective throughput using Fast Read Quad I/O (EBh) at 104 MHz - outperforming standard parallel flash in pin-count-limited applications while maintaining XIP capability without external address latching.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), organized as 8,192 × 256-byte pages |
| Interface Support | Standard SPI (DI/DO), Dual SPI (IO0/IO1), Quad SPI (IO0–IO3); QE bit required for Quad mode |
| Max Clock Frequency | 104 MHz for Quad/Dual SPI; enables 416 MHz equivalent data rate (Quad I/O) |
| Erase Granularity | Uniform 4 KB sectors (512 total), 32 KB blocks (128), 64 KB blocks (32), full chip erase |
| Write Endurance | 100,000 program/erase cycles per sector, 20-year data retention at +85°C |
| Supply Voltage | 2.7 V to 3.6 V; active current ≤ 4 mA, power-down current ≤ 1 µA (typ.) |
| Operating Temperature | –40°C to +85°C; qualified for industrial-grade embedded deployment |
Pinout & Package
W25Q16DVSNIG uses an 8-pin SOIC 150-mil (package code SN) with exposed pad not present; pin functions are electrically identical across SOIC 150/208-mil, PDIP, WSON, USON, WLCSP, and TFBGA variants per datasheet Section 3.4.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; high-impedance DO during deselect; must transition high→low before new instruction |
| 2 DO (IO1) | Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; IO1 in Dual/Quad modes; falls on CLK falling edge |
| 3 /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware lock for status register when QE=0; becomes IO2 in Quad mode (QE=1) |
| 4 GND | Ground Reference | Primary return path for VCC and all I/O signals; decoupling capacitor required near pin |
| 5 DI (IO0) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; IO0 in Dual/Quad modes; sampled on CLK rising edge |
| 6 CLK | Serial Clock Input | Timing reference for all SPI transfers; supports Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1) |
| 7 /HOLD (IO3) | Hold Input / Bidirectional I/O | Pauses ongoing SPI transfer when active low; becomes IO3 in Quad mode (QE=1) |
| 8 VCC | Power Supply | 2.7–3.6 V main supply; requires local 0.1 µF ceramic decoupling between VCC and GND |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI Enable (QE bit) | Non-volatile Status Register-2 bit enabling IO2 (/WP) and IO3 (/HOLD) for 4-line data transfer |
| Continuous Read Mode | 8-clock instruction overhead per 24-bit address; enables true XIP without external address latches |
| Hardware Write Protection | /WP pin + SR BP/TB/SEC bits allow selective 4 KB sector lockdown independent of software state |
| Unique 64-bit ID | Factory-programmed serial number accessible via 4Bh instruction; supports device authentication and traceability |
| Security Registers | Three 256-byte OTP-locked security registers for keys, certificates, or encrypted configuration data |
Applications
| Industrial PLC Firmware Storage | Consumer IoT Boot Memory |
|---|---|
|
Use Scenario: Storing boot loader and field-upgradable firmware in programmable logic controllers with limited PCB real estate and no parallel bus interface. IC Role / Device Role / Timing Role: Primary non-volatile code storage accessed via Quad SPI XIP during cold start and runtime firmware updates. Use Value: 4 KB sector erase enables atomic firmware patching without disrupting operational code segments; 104 MHz Quad I/O sustains >40 MB/s read throughput for fast boot. |
Use Scenario: Holding bootloader, Wi-Fi stack, and sensor calibration data in battery-powered smart home sensors. IC Role / Device Role / Timing Role: Low-power firmware and configuration store interfaced to ARM Cortex-M0+ MCU via standard SPI. Use Value: 1 µA power-down current extends battery life; hardware /WP pin prevents accidental corruption during brown-out events. |
| Medical Device Parameter Retention | Automotive Infotainment Code Shadowing |
|
Use Scenario: Preserving user-configurable therapy parameters and calibration offsets in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure, tamper-resistant parameter archive with OTP-locked security registers for regulatory compliance. Use Value: Three 256-byte OTP security registers store encrypted calibration keys; 20-year data retention ensures long-term clinical validity. |
Use Scenario: Loading application code into RAM at startup in automotive head units using SPI-connected application processors. IC Role / Device Role / Timing Role: High-speed code shadowing source supporting 52 MB/s continuous read for rapid UI initialization. Use Value: Continuous Read Mode with wrap reduces instruction overhead by 60% vs. standard SPI reads; meets ASIL-B functional safety timing budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L1606EM1I-12G | Same 16 M-bit density, 3 V supply, SOIC-8 package; supports only Standard/Dual SPI (no Quad I/O) | Lacks Quad SPI and QE bit; unsuitable for XIP-critical designs requiring >26 MB/s throughput | Select when Quad mode is unnecessary and cost sensitivity outweighs performance needs. |
| S25FL116K0XMFI041 | 16 M-bit, 3 V, SOIC-8; includes SFDP v1.6 and configurable dummy cycles but slower max clock (80 MHz) | Lower 80 MHz max clock limits continuous read rate to ~32 MB/s; lacks 64-bit unique ID | Prefer for Cypress ecosystem designs where SFDP-driven auto-configuration is prioritized over peak bandwidth. |
Compared with W25Q16DVSNIG, MX25L1606EM1I-12G omits Quad SPI and QE functionality - limiting XIP efficiency - while S25FL116K0XMFI041 trades 24 MHz clock headroom and unique ID for enhanced SFDP configurability, making W25Q16DVSNIG optimal for high-throughput, identity-aware embedded firmware storage.
Availability
W25Q16DVSNIG is available at Aetrix Electronics and suitable for industrial PLC firmware storage, consumer IoT boot memory, medical device parameter retention, and automotive infotainment code shadowing requiring stable component supply, long-life qualification, and consistent SOIC-8 sourcing.
Supply support for W25Q16DVSNIG 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 manufacturer specializing in specialty memory solutions including NOR/NAND flash, RAM, and mobile DRAM for industrial, automotive, and consumer markets.
The W25Q series targets embedded systems requiring high-speed, low-pin-count non-volatile storage with robust firmware update and security capabilities - designed specifically for code execution-in-place and secure parameter retention.
FAQ
What is the maximum SPI clock frequency supported by the W25Q16DVSNIG?
The W25Q16DVSNIG supports up to 104 MHz for Standard, Dual, and Quad SPI operations. At this frequency, Fast Read Quad I/O (EBh) achieves an effective data rate of 416 MHz (104 MHz × 4 lines), delivering up to 52 MB/s continuous read throughput - verified in datasheet Section 8.6 AC Electrical Characteristics.
Does the W25Q16DVSNIG require external voltage regulation for its VCC pin?
No, the W25Q16DVSNIG operates directly from a 2.7 V to 3.6 V supply without external regulation. It specifies 4 mA typical active current and ≤1 µA power-down current, and requires only a 0.1 µF ceramic decoupling capacitor between VCC and GND per datasheet Section 8.4 DC Electrical Characteristics.
How is Quad SPI mode enabled on the W25Q16DVSNIG?
Quad SPI mode is enabled by setting the Quad Enable (QE) bit in Status Register-2 using the Write Status Register (01h) instruction. When QE = 1, the /WP and /HOLD pins become IO2 and IO3 respectively; this configuration is non-volatile and persists across power cycles per datasheet Section 7.1.10.
Can the W25Q16DVSNIG be used for execute-in-place (XIP) applications?
Yes, the W25Q16DVSNIG supports true XIP via Continuous Read Mode with as few as 8 clocks of instruction overhead per 24-bit address access. This enables direct code execution from flash without copying to RAM, validated in datasheet Section 6.1.4 and Figure 2 block diagram.
What package type does the W25Q16DVSNIG use, and is it pin-compatible with other W25Q16DV variants?
W25Q16DVSNIG uses an 8-pin SOIC 150-mil package (package code SN). Per datasheet Section 3.4, its pinout is functionally identical to all other W25Q16DV variants including SOIC 208-mil (SS), PDIP (DA), WSON (ZP), and TFBGA (TB/TC), ensuring layout reuse across form factors.
W25Q16DVSNIG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 16Mbit
- Memory Organization:
- 2M x 8
- Memory Interface:
- SPI - Quad I/O
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 50µs, 3ms
- 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
W25Q16DVSNIG FAQ
1.How can I place an order for W25Q16DVSNIG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16DVSNIG 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 W25Q16DVSNIG reliable?
The price and inventory of W25Q16DVSNIG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16DVSNIG is usually 5 days.
3.What payment methods are accepted for W25Q16DVSNIG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16DVSNIG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16DVSNIG?
W25Q16DVSNIG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16DVSNIG 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 W25Q16DVSNIG?
For technical support, including W25Q16DVSNIG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16DVSNIG requirements.
6.How does Aetrix verify that W25Q16DVSNIG is sourced from the original manufacturer or authorized distributors?
All W25Q16DVSNIG 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 W25Q16DVSNIG meets industry standards.
7.What is the process for return or replacement of W25Q16DVSNIG?
All W25Q16DVSNIG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16DVSNIG, 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 W25Q16DVSNIG part is unused and in its original packaging.
Return procedure for W25Q16DVSNIG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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