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Winbond Electronics Corporation W25Q16DVSSIQ TR
- Part No.:
- W25Q16DVSSIQ TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q16DVSSIQ TR.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,882
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Product details
Overview
W25Q16DVSSIQ TR 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 XIP-capable continuous read mode - deployed in embedded boot code storage, firmware update partitions, and parameter retention in industrial microcontroller systems.
For engineers reviewing the W25Q16DVSSIQ TR datasheet, W25Q16DVSSIQ TR pinout, W25Q16DVSSIQ TR application, or W25Q16DVSSIQ TR equivalent, this page delivers verified package mapping (8-pin SOIC 208-mil), confirmed Quad SPI timing (416 MHz equivalent), JEDEC ID validation (EF4015), SFDP register support, and hardware write-protect logic with top/bottom sector control.
Technical Context
The W25Q16DVSSIQ TR implements a SPI-compatible command set with three operational modes: Standard SPI (DI/DO unidirectional), Dual SPI (IO0/IO1 bidirectional), and Quad SPI (IO0–IO3 bidirectional, enabled via non-volatile QE bit in Status Register-2). It uses internal high-voltage generators for erase/program operations and supports suspend/resume during active erase or program cycles.
Its architecture features 512 erasable 4 KB sectors and 32 erasable 64 KB blocks, with programmable block protection (BP2–BP0), top/bottom select (TB), security register locks (LB1–LB3), and a 64-bit unique serial number. The device operates across -40°C to +85°C with 2.7–3.6 V supply and <1 µA power-down current.
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 Clock Max | 104 MHz - enables 208 MHz dual-I/O and 416 MHz quad-I/O effective throughput |
| Erase Granularity | Uniform 4 KB sectors (512 total); also supports 32 KB and 64 KB block erase |
| 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 |
| JEDEC ID | 0xEF4015 - enables automatic device detection in bootloader initialization |
Pinout & Package
W25Q16DVSSIQ TR is packaged in an 8-pin SOIC 208-mil (package code SS), with lead-free, RoHS-compliant construction and moisture sensitivity level (MSL) 3 per J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; places DO in high-impedance state when deasserted; required low-to-high transition before new instruction acceptance |
| 2 DO (IO1) | Data Output / Quad I/O Line 1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI; used for Fast Read Dual Output (3Bh) and Quad I/O instructions |
| 3 /WP (IO2) | Write Protect Input / Quad I/O Line 2 | Hardware lock for Status Register writes when QE=0; repurposed as IO2 in Quad SPI mode (QE=1) |
| 4 GND | Ground Reference | Primary return path for VCC and all I/O signals; must be low-impedance connection in PCB layout |
| 5 DI (IO0) | Data Input / Quad I/O Line 0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI; carries instructions, addresses, and data on CLK rising edge |
| 6 CLK | Serial Clock Input | Edge-triggered 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 / Quad I/O Line 3 | Pauses ongoing SPI transfer while /CS remains low; repurposed as IO3 in Quad SPI mode (QE=1) |
| 8 VCC | Power Supply | 2.7–3.6 V single supply; decoupling capacitor (0.1 µF ceramic) required within 5 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Quad Enable (QE) Bit | Non-volatile bit in Status Register-2 that permanently reassigns /WP and /HOLD to IO2/IO3 - required for all Quad SPI operation |
| Continuous Read Mode | Enables true XIP with ≤8-clock instruction overhead per 24-bit address; supports wrap lengths of 8/16/32/64 bytes |
| Security Registers | Three 256-byte OTP-locked security registers (SR1–SR3) for cryptographic key or calibration data storage |
| Program/Erase Suspend | Allows interrupting active sector/block erase or page program to service higher-priority reads - resumes automatically |
| SFDP Register | Standard Flash Discovery Parameter table (read via 5Ah) - enables automatic driver configuration without hard-coded timing values |
Applications
| Boot Code Storage | Firmware Update Partition |
|---|---|
|
Use Scenario: Storing primary bootloader and application image for ARM Cortex-M or RISC-V microcontrollers during cold start. IC Role / Device Role / Timing Role: Non-volatile code repository accessed via XIP-capable Quad SPI interface at up to 416 MHz equivalent bandwidth. Use Value: Reduces boot time by enabling direct execution from flash; eliminates need for external RAM copy prior to execution. |
Use Scenario: Isolating field-upgradable firmware sections in IoT edge nodes requiring A/B partitioning and rollback safety. IC Role / Device Role / Timing Role: Dual-sector protected storage with independent BP bits and SEC/TB control for atomic update verification. Use Value: Enables safe over-the-air updates with hardware-enforced write protection on active partition during swap. |
| Parameter & Calibration Data | Industrial HMI Configuration |
|
Use Scenario: Retaining sensor calibration coefficients, user preferences, and runtime counters across power cycles in PLC modules. IC Role / Device Role / Timing Role: Low-power, byte-addressable NV storage with 4 KB sector granularity for fine-grained wear leveling. Use Value: Supports >100k write cycles per sector - extends lifetime beyond 10 years under typical industrial logging intervals. |
Use Scenario: Hosting GUI assets, language packs, and touchscreen calibration maps in factory-floor HMIs with limited board space. IC Role / Device Role / Timing Role: High-density serial flash interfaced to display controller via Dual SPI for efficient asset streaming. Use Value: Delivers 52 MB/s continuous read rate - sustains real-time bitmap rendering without frame stutter. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L1606EM2I-12G | Same density (16 M-bit), 3.3 V, SOIC 208-mil, but lacks Quad SPI and SFDP; max SPI clock 80 MHz | No XIP support; slower firmware load; no auto-configurable drivers | Choose only if Quad SPI and SFDP are unused and cost is primary constraint |
| S25FL116K0XMFI041 | 16 M-bit, 3.0 V min, SOIC 208-mil, supports Quad SPI and SFDP, but requires VIO pin and separate 1.8 V I/O supply | Needs additional voltage rail; incompatible with pure 3.3 V systems | Select only when dual-supply design already exists and higher endurance (300k cycles) is critical |
Compared with MX25L1606EM2I-12G and S25FL116K0XMFI041, W25Q16DVSSIQ TR uniquely balances full Quad SPI performance, SFDP-driven driver portability, and single 3.3 V compatibility - making it optimal for new 32-bit MCU designs requiring XIP and field-upgrade resilience.
Availability
W25Q16DVSSIQ TR is available at Aetrix Electronics and suitable for industrial control firmware storage, automotive telematics boot partitions, and medical device configuration retention requiring stable component supply and long-term lifecycle assurance.
Supply support for W25Q16DVSSIQ TR 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 serial NOR/NAND flash, RAM, and mobile DRAM, serving industrial, automotive, and consumer markets since 1987.
The W25Q series was designed specifically for high-reliability embedded systems requiring fast, secure, and flexible code and data storage - emphasizing XIP readiness, hardware write protection, and seamless integration with modern MCU boot ROMs.
FAQ
What is the exact package type and footprint for W25Q16DVSSIQ TR?
W25Q16DVSSIQ TR uses an 8-pin SOIC 208-mil package (package code SS), with 1.27 mm pitch, 5.33 mm width, and standard JEDEC MS-012AC outline. The "SS" suffix in the part number explicitly denotes this variant, and its pinout matches Figure 1a in the datasheet - confirming /CS on pin 1, DO on pin 2, /WP on pin 3, GND on pin 4, DI on pin 5, CLK on pin 6, /HOLD on pin 7, and VCC on pin 8.
Does W25Q16DVSSIQ TR support Quad SPI out of the box, or does it require configuration?
W25Q16DVSSIQ TR requires explicit configuration to enable Quad SPI: the non-volatile Quad Enable (QE) bit in Status Register-2 must be set to '1' using the Write Status Register (01h) instruction. Until then, /WP and /HOLD remain dedicated hardware control pins. Once set, QE persists through power cycles - enabling IO2/IO3 functionality for instructions like Fast Read Quad I/O (EBh).
How is hardware write protection implemented on W25Q16DVSSIQ TR?
W25Q16DVSSIQ TR implements dual-layer hardware write protection: (1) the /WP pin (pin 3) disables Status Register writes when held low (if QE=0), and (2) Block Protect (BP2–BP0), Top/Bottom (TB), and Sector Protect (SEC) bits in Status Register-1 define protected memory ranges. Protection granularity spans individual 4 KB sectors up to the full array - configurable independently of software commands.
Can W25Q16DVSSIQ TR be used for Execute-in-Place (XIP) applications?
Yes - W25Q16DVSSIQ TR supports true XIP via its Continuous Read Mode, which reduces instruction overhead to just 8 clocks per 24-bit address and allows wrap lengths of 8/16/32/64 bytes. When paired with a Quad SPI host controller and QE enabled, it delivers up to 416 MHz effective bandwidth - sufficient for direct code execution in Cortex-M7/M33 and RISC-V cores without intermediate RAM loading.
What unique identifiers does W25Q16DVSSIQ TR provide for device authentication or traceability?
W25Q16DVSSIQ TR provides two hardware-unique identifiers: a 64-bit serial number readable via Read Unique ID Number (4Bh) instruction, and a JEDEC-standard 3-byte ID (0xEF4015) accessible via Read JEDEC ID (9Fh). Both are factory-programmed, immutable, and usable for secure boot chain binding, counterfeit detection, and production lot tracking.
W25Q16DVSSIQ TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- Packaging:
- Tape & Reel (TR)
- 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
W25Q16DVSSIQ TR FAQ
1.How can I place an order for W25Q16DVSSIQ TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16DVSSIQ TR 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 W25Q16DVSSIQ TR reliable?
The price and inventory of W25Q16DVSSIQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16DVSSIQ TR is usually 5 days.
3.What payment methods are accepted for W25Q16DVSSIQ TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16DVSSIQ TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16DVSSIQ TR?
W25Q16DVSSIQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16DVSSIQ TR 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 W25Q16DVSSIQ TR?
For technical support, including W25Q16DVSSIQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16DVSSIQ TR requirements.
6.How does Aetrix verify that W25Q16DVSSIQ TR is sourced from the original manufacturer or authorized distributors?
All W25Q16DVSSIQ TR 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 W25Q16DVSSIQ TR meets industry standards.
7.What is the process for return or replacement of W25Q16DVSSIQ TR?
All W25Q16DVSSIQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16DVSSIQ TR, 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 W25Q16DVSSIQ TR part is unused and in its original packaging.
Return procedure for W25Q16DVSSIQ TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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