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Winbond Electronics Corporation W25Q16DWSNIG TR
- Part No.:
- W25Q16DWSNIG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
W25Q16DWSNIG TR.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,092
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Product details
Overview
W25Q16DWSNIG TR from Winbond is a 1.8V, 16M-bit (2MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces. It delivers up to 104MHz SPI clock rate, 416MHz equivalent Quad I/O throughput, and 50MB/s continuous read performance. Its 8,192 × 256-byte pages, uniform 4KB sector erase, and hardware write protection make it suitable for code execution (XIP), firmware storage, and parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q16DWSNIG TR datasheet, W25Q16DWSNIG TR pinout, W25Q16DWSNIG TR application, or W25Q16DWSNIG TR equivalent, key selection considerations include its 1.65–1.95V supply range, -40°C to +85°C industrial temperature grade, Quad Enable (QE) bit dependency for IO2/IO3 functionality, and SOIC-8 150-mil (SN) package compatibility with legacy PCB footprints.
Technical Context
The W25Q16DWSNIG TR implements a flexible SPI command architecture with mode-selectable operation: Standard SPI (DI/DO), Dual SPI (IO0/IO1), Quad SPI (IO0–IO3), and QPI (all four IOs for instruction + data). Its internal block diagram integrates a 256-byte page buffer, status register logic with BP0–BP2, TB, SEC, CMP, and QE bits, and high-voltage generators for erase/program cycles.
It supports true execute-in-place (XIP) via Continuous Read Mode with as few as 8 clocks overhead per 24-bit address access, and enables concurrent suspend/resume of erase or program operations. The device uses JEDEC-standard manufacturer/device ID (9Fh), 64-bit unique serial number (4Bh), and four 256-byte security registers with OTP locks for secure firmware storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), organized as 8,192 pages × 256 bytes |
| Supply Voltage | 1.65 V to 1.95 V - enables direct integration into 1.8V logic domains without level shifting |
| Max Clock Frequency | 104 MHz SPI - supports 208 MHz dual-I/O and 416 MHz quad-I/O effective bandwidth |
| Erase Granularity | Uniform 4 KB sectors (512 total), plus 32 KB and 64 KB blocks - allows fine-grained firmware partitioning |
| Endurance & Retention | 100,000 program/erase cycles; 20-year data retention at 85°C - suitable for field-upgradable firmware |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade embedded control and IoT edge devices |
| Interface Modes | Standard SPI, Dual SPI, Quad SPI, and QPI - selectable via instruction set; QE bit required for Quad/QPI |
Pinout & Package
W25Q16DWSNIG TR is packaged in an 8-pin SOIC 150-mil (Package Code SN), with gull-wing leads, RoHS-compliant matte tin finish, and 1.27 mm pitch. Pin 1 is marked by a beveled corner or dot; pin 4 is GND, pin 5 is VCC, and pin 8 is CLK.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; places DO/IO pins in high-impedance when high; must transition high→low after power-up before first instruction |
| 2 DO (IO1) | Data Output / Bidirectional I/O 1 | Unidirectional output in Standard SPI; bidirectional in Dual/Quad/QPI; used for read data and status feedback |
| 3 /WP (IO2) | Write Protect Input / Bidirectional I/O 2 | Hardware write lock for status register when QE=0; becomes IO2 in Quad/QPI mode (QE=1) |
| 4 GND | Ground Reference | Primary return path for VCC and all I/O signals; requires low-impedance connection to system ground plane |
| 5 DI (IO0) | Data Input / Bidirectional I/O 0 | Unidirectional input in Standard SPI; bidirectional in Dual/Quad/QPI; carries instructions, addresses, and write data |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference; supports Mode 0 and Mode 3 SPI; max 104 MHz frequency |
| 7 /HOLD (IO3) | Hold Input / Bidirectional I/O 3 | Pauses ongoing SPI transaction when low (active-low); becomes IO3 in Quad/QPI mode (QE=1) |
| 8 VCC | Power Supply | 1.65–1.95 V core supply; decoupling capacitor (100 nF) required within 5 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead to 2 clocks instead of 8, enabling faster XIP startup and lower CPU wait states |
| Erase/Program Suspend & Resume | Allows temporary interruption of long erase/program cycles to service higher-priority reads or commands |
| 4×256-byte Security Registers | OTP-lockable storage for cryptographic keys, calibration data, or device-specific credentials - isolated from main array |
| Top/Bottom Block Protection | Enables hardware-based write lock on upper or lower memory segments independently, protecting boot code or config data |
| 64-bit Unique Serial Number | Factory-programmed per-device identifier usable for anti-cloning, license binding, or asset tracking |
Applications
| Industrial PLC Firmware Storage | IoT Edge Device Boot Code |
|---|---|
|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers deployed in factory automation environments. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP capability and hardware write protection for bootloader integrity. Use Value: 4KB sector granularity enables atomic updates of individual function modules; 20-year data retention ensures reliability over equipment lifetime. |
Use Scenario: Hosting boot firmware and OTA update staging area in battery-powered wireless sensor nodes. IC Role / Device Role / Timing Role: Low-voltage (1.8V) serial flash providing fast read access for MCU initialization and secure key storage. Use Value: 1µA power-down current extends battery life; 64-bit unique ID enables secure device onboarding and firmware signing verification. |
| Automotive Infotainment UI Assets | Medical Diagnostic Instrument Calibration Data |
|
Use Scenario: Caching graphical assets, fonts, and localization strings for head-unit displays operating across automotive temperature ranges. IC Role / Device Role / Timing Role: High-bandwidth Quad SPI interface delivering >40 MB/s sustained read for UI rendering pipelines. Use Value: 104 MHz clock support and Continuous Read Mode reduce latency during GUI asset loading; -40°C to +85°C rating meets AEC-Q100 Grade 3 requirements. |
Use Scenario: Storing factory-calibrated sensor coefficients and regulatory compliance logs in portable diagnostic analyzers. IC Role / Device Role / Timing Role: Tamper-resistant non-volatile memory with security registers for cryptographic key management and audit trail persistence. Use Value: Four OTP-lockable 256-byte security registers prevent unauthorized modification of calibration data; JEDEC ID and unique serial number support traceability and regulatory reporting. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L1606EM1I-12G | Same density (16M-bit), 3V supply (2.7–3.6V); no QPI mode; 85 MHz max clock; lacks security registers and unique ID | Requires level-shifting in 1.8V systems; unsuitable for secure key storage or unified 1.8V rail designs | Select only if existing 3V infrastructure prohibits voltage translation and QPI/XIP is not required. |
| S25FL116K0XMFI041 | 16M-bit, 1.7–2.0V supply; supports Octal DTR mode (up to 80 MHz x8 = 640 MB/s); includes SFDP and 4-byte addressing | Better suited for high-speed boot from flash in Cortex-M7/M33 MCUs; larger footprint (16-pin SOIC) | Prefer when migrating to next-gen controllers requiring >100 MB/s read or future-proofing for 4GB+ address space. |
Compared with MX25L1606EM1I-12G and S25FL116K0XMFI041, the W25Q16DWSNIG TR uniquely balances 1.8V operation, QPI acceleration, security registers, and SOIC-8 compactness - making it optimal for cost-sensitive, space-constrained industrial and IoT designs where full Octal DTR is unnecessary.
Availability
W25Q16DWSNIG TR is available at Aetrix Electronics and suitable for industrial control, IoT edge node deployment, and medical device firmware storage requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for W25Q16DWSNIG 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 DRAM, mobile DRAM, and serial flash memory solutions for consumer, industrial, and communications markets.
The W25Q series was designed specifically for embedded systems requiring high-speed, low-voltage, secure, and pin-efficient non-volatile code and data storage - with emphasis on XIP performance, firmware update resilience, and industrial temperature robustness.
FAQ
What is the supply voltage range supported by the W25Q16DWSNIG TR?
The W25Q16DWSNIG TR operates from 1.65 V to 1.95 V, making it compatible with standard 1.8V logic rails without external level shifters. This narrow range ensures stable internal charge pump operation for erase/program cycles and eliminates risk of overvoltage damage common in wider-range flash devices. All DC and AC electrical characteristics in the datasheet are specified within this window.
Does the W25Q16DWSNIG TR support execute-in-place (XIP) operation?
Yes, the W25Q16DWSNIG TR supports true XIP via Continuous Read Mode and Fast Read Quad I/O (EBh) instructions. With as few as 8 clocks overhead per 24-bit address and 416 MHz effective bandwidth in Quad mode, it delivers low-latency instruction fetches directly from flash - validated in ARM Cortex-M and RISC-V microcontroller reference designs using W25Q16DW-series devices.
How is Quad SPI functionality enabled on the W25Q16DWSNIG TR?
Quad SPI mode requires setting the non-volatile Quad Enable (QE) bit in Status Register-2 (bit 1) via Write Status Register (01h) instruction. Once QE=1, pins /WP and /HOLD become IO2 and IO3 respectively. The W25Q16DWSNIG TR does not default to Quad mode at power-up; initialization software must explicitly configure QE before issuing Quad instructions like EBh or 6Bh.
What package type does the W25Q16DWSNIG TR use, and is it compatible with standard SOIC-8 footprints?
The W25Q16DWSNIG TR uses an 8-pin SOIC 150-mil package (Package Code SN), with 1.27 mm lead pitch and standard gull-wing lead form. It is mechanically and solder-reflow compatible with industry-standard SOIC-8 150-mil footprints, including IPC-7351B SOIC127P600X210-8 layout. Pin 1 marking is a beveled corner or laser dot adjacent to pin 1.
Does the W25Q16DWSNIG TR include hardware-based write protection features?
Yes, the W25Q16DWSNIG TR provides multiple hardware write protection layers: active-low /WP pin (when QE=0), top/bottom block protect (TB bit), sector/block protect bits (BP2–BP0, SEC), complement protect (CMP), and status register protection (SRP0/SRP1). These can be combined to lock specific 4KB sectors - such as bootloader regions - against accidental or malicious overwrite during field updates.
W25Q16DWSNIG TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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, QPI
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 40µs, 3ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q16DWSNIG TR FAQ
1.How can I place an order for W25Q16DWSNIG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16DWSNIG 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 W25Q16DWSNIG TR reliable?
The price and inventory of W25Q16DWSNIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16DWSNIG TR is usually 5 days.
3.What payment methods are accepted for W25Q16DWSNIG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16DWSNIG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16DWSNIG TR?
W25Q16DWSNIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16DWSNIG 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 W25Q16DWSNIG TR?
For technical support, including W25Q16DWSNIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16DWSNIG TR requirements.
6.How does Aetrix verify that W25Q16DWSNIG TR is sourced from the original manufacturer or authorized distributors?
All W25Q16DWSNIG 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 W25Q16DWSNIG TR meets industry standards.
7.What is the process for return or replacement of W25Q16DWSNIG TR?
All W25Q16DWSNIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16DWSNIG 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 W25Q16DWSNIG TR part is unused and in its original packaging.
Return procedure for W25Q16DWSNIG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q16DWSNIG TR Tags
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M24C02-WMN6TP
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