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Winbond Electronics Corporation W25Q16DVSSIG
- Part No.:
- W25Q16DVSSIG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q16DVSSIG.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,224
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Product details
Overview
W25Q16DVSSIG 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 erase granularity, and single 2.7–3.6 V supply operation. It delivers up to 416 MHz equivalent data throughput in Quad I/O mode and enables execute-in-place (XIP) code execution in embedded microcontroller systems.
For engineers reviewing the W25Q16DVSSIG datasheet, W25Q16DVSSIG pinout, W25Q16DVSSIG application, or W25Q16DVSSIG equivalent, key selection considerations include Quad Enable (QE) bit configuration for IO2/IO3 remapping, hardware write protection via /WP and /HOLD pins, 4 KB sector flexibility for firmware parameter storage, and JEDEC-compliant 64-bit unique ID for device authentication.
Technical Context
The W25Q16DVSSIG implements a SPI-compatible command set with three operational modes: Standard (DI/DO), Dual (IO0/IO1), and Quad (IO0–IO3), where Quad mode requires non-volatile QE bit = 1 in Status Register-2. Its architecture includes a 256-byte page buffer, 512 erasable 4 KB sectors, and 32 erasable 64 KB blocks.
It supports full instruction-level compatibility with JEDEC JESD216 SFDP v1.5 for discoverable parameters, integrates volatile/non-volatile status register bits (BP2–BP0, TB, SEC, CMP, SRP1/SRP0), and provides Erase/Program Suspend & Resume functionality for real-time interrupt handling during flash operations.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), organized as 8,192 × 256-byte pages |
| SPI Interface Modes | Standard (DI/DO), Dual (IO0/IO1), Quad (IO0–IO3); QE bit required for Quad |
| Max Clock Frequency | 104 MHz - enables 52 MB/s continuous read in Quad I/O mode |
| Erase Granularity | Uniform 4 KB sectors (512 total), plus 32 KB and 64 KB block erase options |
| Write Endurance | 100,000 program/erase cycles per sector - suitable for firmware update logging |
| Data Retention | 20 years at +25°C - validated for long-life industrial deployments |
| Operating Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic domains without level shifting |
| Temperature Range | –40°C to +85°C - qualified for extended industrial ambient conditions |
Pinout & Package
W25Q16DVSSIG is packaged in an 8-pin SOIC 208-mil (package code SS), with pin 1 = /CS, pin 2 = DO (IO1), pin 3 = /WP (IO2), pin 4 = GND, pin 5 = DI (IO0), pin 6 = CLK, pin 7 = /HOLD (IO3), pin 8 = VCC. Pin functions are mode-dependent: /WP and /HOLD serve as IO2 and IO3 only when QE=1 in Status Register-2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS (Pin 1) | Chip Select Input | Active-low enable; high-impedance DO output and standby current when deasserted |
| DO / IO1 (Pin 2) | Serial Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; bidirectional in Dual/Quad modes |
| /WP / IO2 (Pin 3) | Hardware Write Protect / Bidirectional I/O | Active-low hardware lock for status register; repurposed as IO2 when QE=1 |
| GND (Pin 4) | Ground Reference | Primary return path for VCC and all I/O signals; critical for noise immunity |
| DI / IO0 (Pin 5) | Serial Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; bidirectional in Dual/Quad modes |
| CLK (Pin 6) | Serial Clock Input | Edge-triggered timing reference for all SPI transfers; supports Mode 0 and Mode 3 |
| /HOLD / IO3 (Pin 7) | Operation Hold / Bidirectional I/O | Pauses active transfers while /CS remains low; repurposed as IO3 when QE=1 |
| VCC (Pin 8) | Power Supply | Single 2.7–3.6 V supply; powers internal high-voltage generators for erase/program |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI XIP Support | Enables direct code execution from flash via Fast Read Quad I/O (EBh), reducing RAM footprint in resource-constrained MCUs |
| Continuous Read Mode | As few as 8 clocks overhead per 24-bit address access - eliminates instruction latency for sequential reads |
| 64-Bit Unique Serial Number | Factory-programmed, unalterable ID per die - used for secure boot binding and device identity management |
| Security Register Locks | Three 256-byte OTP-locked security registers - store cryptographic keys or calibration data with hardware write-protection |
| JEDEC SFDP Compliance | Self-describing parameter table (5Ah instruction) - enables automatic driver configuration without hard-coded timing values |
| Erase/Program Suspend | Halts ongoing erase or program cycle on /HOLD assertion - allows servicing of time-critical interrupts without data loss |
Applications
| Boot Code Storage | Firmware Update Partition |
|---|---|
Use Scenario: Storing primary bootloader and initial application image for ARM Cortex-M or RISC-V microcontrollers. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable Quad SPI interface enabling zero-copy startup execution. Use Value: Reduces boot time by eliminating RAM copy step; leverages 104 MHz Quad SPI for sub-100 ms firmware load. | Use Scenario: Dedicated partition for over-the-air (OTA) firmware updates in connected IoT edge nodes. IC Role / Device Role / Timing Role: Field-upgradable storage with atomic sector erase and suspend/resume for safe power-loss recovery. Use Value: Enables robust dual-bank update schemes using 4 KB sector boundaries and 100K-cycle endurance. |
| Configuration Parameter Log | Secure Key Vault |
Use Scenario: Persistent storage of runtime-calibrated sensor offsets, network credentials, and device-specific settings. IC Role / Device Role / Timing Role: Low-write-frequency parameter archive with hardware write protection via /WP and BP bits. Use Value: Prevents accidental overwrite during field operation; retains data for 20 years at industrial temperatures. | Use Scenario: Tamper-resistant storage of AES keys, certificate chains, and secure boot hashes in medical or industrial controllers. IC Role / Device Role / Timing Role: OTP-locked security register bank accessed only via dedicated 42h/48h instructions. Use Value: Isolates sensitive data from main array; prevents extraction via standard read commands or physical probing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L1606EZN-12G | Same density (16 M-bit), but max clock 80 MHz; no Quad Enable bit; uses /WP and /HOLD as dedicated pins only | Lacks Quad SPI XIP support and SFDP register; limited to Standard/Dual SPI use cases | Select when Quad I/O is unnecessary and legacy SPI controller compatibility is prioritized |
| S25FL116K0XMFI011 | 16 M-bit with 104 MHz Quad SPI, but requires external VIO supply for I/O voltage; no built-in 64-bit UID | Needs additional power rail design; lacks factory-unique ID for secure boot binding | Choose when multi-voltage I/O flexibility is required and UID-based authentication is not mandated |
Compared with MX25L1606EZN-12G and S25FL116K0XMFI011, W25Q16DVSSIG uniquely combines 104 MHz Quad SPI, integrated SFDP, 64-bit UID, and OTP security registers in a single 3.3 V supply package-making it optimal for secure, high-speed embedded boot and OTA update architectures.
Availability
W25Q16DVSSIG is available at Aetrix Electronics and suitable for industrial control HMI boot loading, automotive telematics firmware storage, and medical device configuration parameter retention requiring stable component supply across multi-year production cycles.
Supply support for W25Q16DVSSIG 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.
The W25Q series targets embedded systems requiring high-speed, secure, and reliable serial flash for code storage, XIP execution, and firmware update resilience - with emphasis on industrial, automotive, and IoT applications.
FAQ
What is the package type and lead count for W25Q16DVSSIG?
W25Q16DVSSIG uses an 8-pin SOIC 208-mil package (package code SS). It has eight leads arranged in a dual-inline configuration with standard 1.27 mm pitch, fully compliant with JEDEC MS-012. This package is RoHS-compliant and rated for industrial temperature operation from –40°C to +85°C. The W25Q16DVSSIG pinout matches the generic W25Q16DV SOIC layout defined in section 3.1 of the datasheet.
Does W25Q16DVSSIG support execute-in-place (XIP) operation?
Yes, W25Q16DVSSIG supports true XIP via its Continuous Read Mode and Fast Read Quad I/O (EBh) instruction. When configured with QE=1 and operating in Quad SPI mode, it achieves up to 416 MHz equivalent throughput, enabling low-latency instruction fetch directly from flash without RAM buffering. The 8-clock address overhead and wrap-mode addressing further optimize sequential access for MCU code execution.
How is hardware write protection implemented on W25Q16DVSSIG?
W25Q16DVSSIG implements hardware write protection through the /WP pin (Pin 3), which is active-low and locks the status register when asserted. Combined with software-configurable Block Protect (BP2–BP0), Top/Bottom (TB), and Security Register Lock (LB1–LB3) bits, it enables granular protection of 4 KB sectors up to the full array. Protection persists across power cycles when SRP0/SRP1 are set, and /WP functionality is disabled in Quad mode when QE=1.
What is the role of the /HOLD pin on W25Q16DVSSIG during active SPI transfers?
The /HOLD pin (Pin 7) on W25Q16DVSSIG pauses ongoing SPI operations while /CS remains low - placing DO in high-impedance state and ignoring DI/CLK transitions. This allows time-critical interrupts to be serviced without aborting flash operations. When QE=1, /HOLD becomes IO3 for Quad SPI; thus /HOLD functionality is only available in Standard and Dual SPI modes.
Can W25Q16DVSSIG be used in systems requiring unique device identification?
Yes, W25Q16DVSSIG includes a factory-programmed, unalterable 64-bit Unique ID accessible via instruction 4Bh. This identifier is globally unique per die and supports secure boot binding, device authentication, and firmware licensing. Unlike software-generated IDs, it requires no user programming and is guaranteed across all production lots - making W25Q16DVSSIG suitable for certified medical and industrial applications.
W25Q16DVSSIG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Programmable:
- 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
W25Q16DVSSIG FAQ
1.How can I place an order for W25Q16DVSSIG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16DVSSIG 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 W25Q16DVSSIG reliable?
The price and inventory of W25Q16DVSSIG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16DVSSIG is usually 5 days.
3.What payment methods are accepted for W25Q16DVSSIG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16DVSSIG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16DVSSIG?
W25Q16DVSSIG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16DVSSIG 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 W25Q16DVSSIG?
For technical support, including W25Q16DVSSIG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16DVSSIG requirements.
6.How does Aetrix verify that W25Q16DVSSIG is sourced from the original manufacturer or authorized distributors?
All W25Q16DVSSIG 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 W25Q16DVSSIG meets industry standards.
7.What is the process for return or replacement of W25Q16DVSSIG?
All W25Q16DVSSIG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16DVSSIG, 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 W25Q16DVSSIG part is unused and in its original packaging.
Return procedure for W25Q16DVSSIG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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