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Winbond Electronics Corporation W25Q16FWSNIG TR
- Part No.:
- W25Q16FWSNIG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
W25Q16FWSNIG TR.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,061
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Product details
Overview
W25Q16FWSNIG TR from Winbond is a 1.8V, 16M-bit serial flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces, organized as 8192 × 256-byte pages with 4KB uniform sector erase granularity, enabling code shadowing, XIP execution, and secure parameter storage in space-constrained embedded systems.
For engineers reviewing the W25Q16FWSNIG TR datasheet, W25Q16FWSNIG TR pinout, W25Q16FWSNIG TR application, or W25Q16FWSNIG TR equivalent, this device delivers 104MHz SPI clock support, 50MB/s continuous read throughput, JEDEC ID and 64-bit unique serial number, and configurable hardware write protection via /WP and /HOLD pins in SOIC-8 (SN) package.
Technical Context
The W25Q16FWSNIG TR implements a quad-peripheral interface (QPI) mode activated by instruction 38h, reducing instruction overhead to two clocks versus eight in standard SPI; QPI requires non-volatile QE bit (SR2[1]) set and disables /WP and /HOLD functions in favor of IO2/IO3.
It supports dual/quad I/O operations with programmable output driver strength (DRV1/DRV0), erase/program suspend/resume capability, and three 256-byte one-time-programmable (OTP) security registers-each protected by dedicated lock bits (LB[3:1])-for firmware integrity and secure boot key storage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2 MB), organized as 8192 pages × 256 bytes for fine-grained firmware partitioning |
| Supply Voltage | 1.65 V to 1.95 V - enables direct integration with 1.8V logic domains without level shifting |
| SPI Clock Max | 104 MHz - supports 208 MHz (Dual I/O) and 416 MHz (Quad I/O) effective data rates |
| Erase Granularity | 4 KB sectors (512 total), 32 KB blocks (32 total), 64 KB blocks (16 total) - allows selective firmware update without full chip erase |
| Write Endurance | 100,000 program-erase cycles per sector - ensures long-term reliability in field-upgradable devices |
| Data Retention | 20 years at +85°C - validated for industrial temperature operation without refresh |
| Interface Modes | Standard SPI (4-wire), Dual SPI (DI/DO bidirectional), Quad SPI (IO0–IO3), QPI (2-clock instruction decode) |
| Security Features | 64-bit unique ID, SFDP register, three 256-byte OTP security registers with LB[3:1] locks |
Pinout & Package
W25Q16FWSNIG TR is packaged in 8-pin SOIC 150-mil (Package Code SN), with gull-wing leads, 1.27 mm pitch, and RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable: high = device deselected (high-Z outputs, standby current); low = active communication window |
| 2 DO (IO1) | Data Output / Quad I/O Line 1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI/QPI; used for status/data reads |
| 3 /WP (IO2) | Write Protect Input / Quad I/O Line 2 | Hardware lock for Status Register when QE=0; becomes IO2 in Quad SPI/QPI; active-low protection |
| 4 GND | Ground Reference | Signal and power return path; must be low-impedance connection to minimize noise coupling into SPI lines |
| 5 DI (IO0) | Data Input / Quad I/O Line 0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI/QPI; carries instructions/addresses |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference for all SPI/QPI transfers; supports Mode 0 and Mode 3 clock polarity/idle states |
| 7 /HOLD or /RESET (IO3) | Hold or Reset Input / Quad I/O Line 3 | Pauses ongoing transfer when /CS is low (QE=0); functions as /RESET only in 16-pin packages; becomes IO3 when QE=1 |
| 8 VCC | Power Supply | 1.65–1.95 V core supply; decoupling capacitor (≥100 nF) required within 5 mm of pin for stable high-speed operation |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | As few as 8 clocks to issue 24-bit address - enables true execute-in-place (XIP) with minimal instruction overhead |
| Quad Peripheral Interface (QPI) | 2-clock instruction decode (vs. 8-clock SPI) - reduces bus arbitration latency and improves real-time code fetch efficiency |
| Erase/Program Suspend & Resume | Pause active sector erase or page program to service higher-priority interrupts - preserves state without data loss |
| Volatile & Non-Volatile Protection | BP0–BP2, TB, SEC, CMP, SRP0/SRP1 bits - allow persistent or runtime-configurable locking of 4KB–entire array segments |
| Security Register Locks | LB[3:1] OTP bits per 256-byte security register - prevent reprogramming of cryptographic keys or calibration data after initial burn |
| JEDEC & Unique ID Support | Read Manufacturer/Device ID (90h/9Fh) and 64-bit serial number (4Bh) - enables automated BOM verification and anti-counterfeiting traceability |
Applications
| IoT Edge Node Firmware Storage | Industrial PLC Boot Memory |
|---|---|
|
Use Scenario: Storing signed firmware images and OTA update payloads in battery-powered wireless sensors with limited PCB area. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP-capable Quad SPI interface for low-latency boot and secure firmware validation. Use Value: 4KB sector erase enables atomic firmware patching; 1µA power-down current extends battery life; 64-bit UID supports device-specific key binding. |
Use Scenario: Holding bootloader, configuration tables, and HMI assets in DIN-rail mounted programmable logic controllers operating continuously at 85°C. IC Role / Device Role / Timing Role: High-reliability boot memory with 20-year data retention and hardware write protection against EMI-induced corruption. Use Value: 100K endurance cycles ensure >10 years of daily firmware updates; -40°C to +85°C rating matches industrial ambient requirements. |
| Medical Diagnostic Device Parameter Storage | Automotive Infotainment Head Unit Code Storage |
|
Use Scenario: Saving calibrated sensor offsets, user preferences, and audit logs in FDA-regulated portable ultrasound equipment. IC Role / Device Role / Timing Role: Secure parameter archive with OTP-locked security registers for HIPAA-compliant data integrity. Use Value: Three 256-byte OTP security registers store encryption keys and calibration signatures; CMP and TB bits enforce read/write access hierarchy. |
Use Scenario: Hosting Linux kernel, rootfs, and GUI assets in automotive-grade infotainment systems requiring AEC-Q100 compliance. IC Role / Device Role / Timing Role: High-throughput code storage interfaced via QPI to reduce boot time and improve UI responsiveness. Use Value: 50 MB/s continuous read rate accelerates kernel decompression; QPI mode cuts instruction latency by 75% vs. standard SPI. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L1606EM1I-12G | 3V supply (2.7–3.6V), no QPI mode, lacks OTP security registers and 64-bit UID | Requires level-shifting for 1.8V systems; unsuitable for secure boot or UID-based licensing | Select only if legacy 3V design compatibility is mandatory and security features are unused |
| AT25SF161-SSHD-B | 1.7–2.0V supply, supports QPI and 64-bit UID, but only 50K endurance cycles and no security register OTP locks | Acceptable for cost-sensitive consumer devices; insufficient for medical/industrial field-update longevity | Prefer when QPI and UID are needed but OTP-level security and 100K-cycle endurance are not required |
Compared with W25Q16FWSNIG TR, MX25L1606EM1I-12G lacks voltage compatibility and security features, while AT25SF161-SSHD-B trades endurance and OTP locking for marginally broader voltage tolerance-making W25Q16FWSNIG TR the optimal choice for 1.8V industrial and secure embedded applications.
Availability
W25Q16FWSNIG TR is available at Aetrix Electronics and suitable for IoT edge nodes, industrial PLCs, medical diagnostics, automotive infotainment, and secure boot applications requiring stable component supply across multi-year production cycles.
Supply support for W25Q16FWSNIG 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 flash, RAM, and mobile DRAM, serving industrial, automotive, and communications markets since 1987.
The W25Q series was designed specifically for high-performance, low-voltage embedded systems requiring robust code storage, secure firmware updates, and execute-in-place capability-targeting applications where space, power, and reliability are critical constraints.
FAQ
What is the operating voltage range for the W25Q16FWSNIG TR?
The W25Q16FWSNIG TR operates from 1.65 V to 1.95 V. This narrow 1.8V nominal range eliminates the need for external level shifters when interfacing with 1.8V microcontrollers or SoCs, and ensures stable performance across process and temperature variations. Operation outside this range may cause undefined behavior or permanent damage to the W25Q16FWSNIG TR.
Does the W25Q16FWSNIG TR support Quad Peripheral Interface (QPI) mode?
Yes, the W25Q16FWSNIG TR supports QPI mode via the "Enter QPI (38h)" instruction, provided the Quad Enable (QE) bit in Status Register-2 is set. In QPI mode, all four I/O lines (IO0–IO3) carry instruction and data simultaneously, reducing instruction decode time from eight to two clock cycles. The W25Q16FWSNIG TR exits QPI mode using "Exit QPI (FFh)" and defaults to Standard SPI after power-up or reset.
How many program-erase cycles does the W25Q16FWSNIG TR guarantee per sector?
The W25Q16FWSNIG TR guarantees a minimum of 100,000 program-erase cycles per sector. This endurance rating is validated across the full operating temperature range (-40°C to +85°C) and ensures reliable field-upgradability in applications such as industrial controllers and medical devices where firmware updates occur regularly over multi-year deployments.
Can the W25Q16FWSNIG TR be used for secure boot key storage?
Yes, the W25Q16FWSNIG TR includes three 256-byte security registers with one-time-programmable (OTP) lock bits (LB[3:1]). Once locked, these registers cannot be rewritten, making them suitable for storing cryptographic keys, calibration signatures, or device-unique credentials. The W25Q16FWSNIG TR also provides a 64-bit unique serial number for binding keys to individual units.
What package type does the W25Q16FWSNIG TR use?
The W25Q16FWSNIG TR uses an 8-pin SOIC 150-mil package (Package Code SN), with gull-wing leads, 1.27 mm pitch, and RoHS-compliant matte tin plating. This industry-standard footprint ensures drop-in compatibility with existing PCB layouts designed for similar serial flash devices and simplifies assembly in high-volume manufacturing.
W25Q16FWSNIG 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:
- Active
- 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:
- 60µs, 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
W25Q16FWSNIG TR FAQ
1.How can I place an order for W25Q16FWSNIG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16FWSNIG 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 W25Q16FWSNIG TR reliable?
The price and inventory of W25Q16FWSNIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16FWSNIG TR is usually 5 days.
3.What payment methods are accepted for W25Q16FWSNIG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16FWSNIG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16FWSNIG TR?
W25Q16FWSNIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16FWSNIG 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 W25Q16FWSNIG TR?
For technical support, including W25Q16FWSNIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16FWSNIG TR requirements.
6.How does Aetrix verify that W25Q16FWSNIG TR is sourced from the original manufacturer or authorized distributors?
All W25Q16FWSNIG 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 W25Q16FWSNIG TR meets industry standards.
7.What is the process for return or replacement of W25Q16FWSNIG TR?
All W25Q16FWSNIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16FWSNIG 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 W25Q16FWSNIG TR part is unused and in its original packaging.
Return procedure for W25Q16FWSNIG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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