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Winbond Electronics Corporation W25Q16JWSSIQ TR
- Part No.:
- W25Q16JWSSIQ TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q16JWSSIQ TR.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,130
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Product details
Overview
W25Q16JWSSIQ TR from Winbond is a 1.8V, 16M-bit (2MB) serial NOR flash memory supporting Standard, Dual, and Quad SPI interfaces with up to 133MHz clock frequency, 4KB uniform sector architecture, and industrial temperature range (–40°C to +85°C). It enables XIP (execute-in-place) code execution, firmware storage, and parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q16JWSSIQ TR datasheet, W25Q16JWSSIQ TR pinout, W25Q16JWSSIQ TR application, or W25Q16JWSSIQ TR equivalent, key selection criteria include Quad I/O timing compliance, 1.65–1.95V supply compatibility, hardware /WP and /HOLD support, and JEDEC SFDP register accessibility for configurable boot modes.
Technical Context
The W25Q16JWSSIQ TR implements a quad-I/O SPI interface requiring non-volatile Quad Enable (QE) bit configuration in Status Register-2 to activate IO2 (/WP) and IO3 (/HOLD) pins. Its block diagram includes a 8192 × 256-byte page array, status/configuration registers (SR1–SR3), and dedicated security logic for OTP lock bits and 64-bit unique ID.
It supports three erase granularities-4KB sectors (512 total), 32KB blocks (32 total), and 64KB blocks (32 total)-with Erase/Program Suspend & Resume functionality. The device uses Mode 0/3 SPI clocking and requires Write Enable (06h) before any program/erase operation, with automatic WEL clearance post-execution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), organized as 8192 pages × 256 bytes |
| Supply Voltage | 1.65 V to 1.95 V - enables direct integration with 1.8V logic domains without level shifting |
| Max Clock Frequency | 133 MHz for Quad I/O - delivers up to 66 MB/s continuous read throughput via Fast Read Quad I/O (EBh) |
| Erase Granularity | 4 KB sectors, 32 KB blocks, 64 KB blocks - supports fine-grained firmware partitioning and OTA update safety |
| Data Retention | 20+ years - ensures long-term reliability for industrial firmware and calibration data storage |
| Endurance | 100,000 program/erase cycles per sector - validated for frequent field-upgrade scenarios |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded control and IoT edge nodes |
| Security Features | 64-bit unique ID, three 256-byte security registers, individual sector/block locks, SFDP register - enables secure boot and anti-cloning |
Pinout & Package
W25Q16JWSSIQ TR is supplied in an 8-pin SOIC 208-mil package (Package Code SS), with lead-free, RoHS-compliant finish and moisture sensitivity level (MSL) 3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable signal; high-impedance DO during deselect; must track VCC at power-up/down |
| 2 DO (IO1) | Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI; used for Fast Read Dual/Quad Output |
| 3 /WP (IO2) | Write Protect Input / I/O2 | Hardware write protection for status register when QE=0; becomes IO2 in Quad mode (QE=1) |
| 4 GND | Ground Reference | Primary return path for VCC and I/O signals; decoupling capacitor required near pin |
| 5 DI (IO0) | Data Input / I/O0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI; carries instructions/addresses/data |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference for all SPI operations; supports Mode 0 and Mode 3 clock polarity/idle states |
| 7 /HOLD (IO3) | Hold Input / I/O3 | Pauses ongoing SPI transfer when low (active); becomes IO3 in Quad mode (QE=1); not available if QE=1 and /HOLD used |
| 8 VCC | Power Supply | 1.65–1.95 V core supply; requires local 100 nF ceramic decoupling between VCC and GND |
Key Features
| Feature | Design Value |
|---|---|
| Dual/Quad SPI Interface | Enables 2×–4× faster read throughput vs standard SPI; supports XIP execution with Fast Read Quad I/O (EBh) |
| Uniform 4KB Sector Architecture | Allows precise firmware partitioning (e.g., bootloader, app, config) and minimizes erase overhead during OTA updates |
| Erase/Program Suspend & Resume | Permits temporary interruption of long erase/program operations to service time-critical host tasks |
| Hardware /WP and /HOLD Pins | Provides deterministic, glitch-immune protection and bus arbitration without software intervention |
| JEDEC SFDP & Unique ID | Enables automatic configuration discovery and device-level traceability in production and field diagnostics |
| Volatile/Non-Volatile Status Bits | Supports flexible, persistent protection schemes (BP/TB/SEC/CMP) and runtime-configurable driver strength (DRV1/DRV0) |
Applications
| Industrial PLC Firmware Storage | IoT Edge Device Boot Code |
|---|---|
|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Non-volatile code and data storage with guaranteed 20-year retention and 100K endurance under thermal cycling. Use Value: Eliminates need for external EEPROM or parallel flash; reduces BOM count while meeting IEC 61000-4 immunity requirements via low-noise 1.8V operation. |
Use Scenario: Hosting secure boot loader and encrypted application binaries in battery-powered wireless sensors deployed outdoors. IC Role / Device Role / Timing Role: Primary boot memory accessed via Quad SPI XIP during cold start; leverages 64-bit unique ID for device authentication. Use Value: Enables fast (<50 ms) firmware validation and launch using Fast Read Quad I/O (EBh), reducing wake-up latency and extending battery life. |
| Medical Diagnostic Instrument Calibration Data | Automotive ADAS Camera Module Firmware |
|
Use Scenario: Storing calibrated sensor offsets, gain tables, and regulatory audit logs in Class II medical imaging equipment. IC Role / Device Role / Timing Role: Tamper-resistant parameter storage with individual sector locks and OTP-protected security registers. Use Value: Meets FDA 21 CFR Part 11 requirements for data integrity via hardware-enforced write protection and immutable unique ID binding. |
Use Scenario: Holding camera ISP firmware and lens correction profiles in automotive surround-view systems requiring AEC-Q100 Grade 2 qualification. IC Role / Device Role / Timing Role: High-reliability code storage with –40°C to +105°C extended temp option (via W25Q16JWXXIQ variant) and SFDP-driven boot configuration. Use Value: Supports ASIL-B functional safety by enabling dual-image redundancy and atomic sector swap during field updates. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L1633FZUI-10G | 3V supply (2.7–3.6V); no /HOLD pin; 104MHz max Quad SPI clock; lacks SFDP and unique ID | Requires level-shifting in 1.8V systems; unsuitable for XIP-critical designs needing auto-configuration | Select only if legacy 3V infrastructure exists and SFDP/ID features are unnecessary |
| S25FL132K0XMFI010 | 1.8V supply; 80MHz Quad SPI; HyperBus interface option; includes ECC and sector protection lock bits | Higher pin count (16-pin SOIC/WSON); larger footprint; supports error correction for safety-critical reads | Prefer when system demands ECC-enabled reliability or future HyperBus scalability |
Compared with MX25L1633FZUI-10G and S25FL132K0XMFI010, the W25Q16JWSSIQ TR uniquely balances 1.8V compatibility, 133MHz Quad I/O speed, integrated SFDP, and compact 8-pin SOIC packaging - making it optimal for cost-sensitive, space-constrained industrial and IoT designs requiring rapid boot and field-upgrade resilience.
Availability
W25Q16JWSSIQ TR is available at Aetrix Electronics and suitable for industrial control systems, IoT edge gateways, and medical diagnostic instruments requiring stable component supply, long-lifecycle support, and RoHS-compliant sourcing.
Supply support for W25Q16JWSSIQ 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 manufacturer specializing in specialty memory solutions, including SPI NOR/NAND flash, RAM, and mobile DRAM, serving industrial, communications, and consumer markets since 1987.
The W25Q16JW series belongs to Winbond's high-performance SpiFlash family, designed specifically for embedded systems demanding fast, reliable, and secure code and data storage with minimal pin count and power budget.
FAQ
What is the maximum supported SPI clock frequency for W25Q16JWSSIQ TR in Quad I/O mode?
The W25Q16JWSSIQ TR supports up to 133 MHz in Quad I/O mode, enabling a theoretical peak throughput of 532 Mbps (133 MHz × 4 data lines). This is achieved using Fast Read Quad I/O (EBh) instruction with proper setup of the Quad Enable (QE) bit in Status Register-2. Real-world sustained read rates reach 66 MB/s under typical PCB layout and termination conditions.
Does W25Q16JWSSIQ TR support hardware reset via a dedicated /RESET pin?
No - the W25Q16JWSSIQ TR does not include a dedicated hardware /RESET pin. That feature is only available on SOIC-16 and TFBGA packages (e.g., W25Q16JWxxIQ variants with different suffixes). The W25Q16JWSSIQ TR relies solely on software reset (66h + 99h instruction sequence) and power-cycle reset. The /HOLD pin (Pin 7) functions as IO3 in Quad mode but cannot serve as /RESET.
How is write protection implemented on W25Q16JWSSIQ TR?
W25Q16JWSSIQ TR implements multi-layer write protection: (1) hardware /WP pin (active-low, protects status register when QE=0), (2) volatile/non-volatile status register bits (BP2–BP0, TB, SEC, CMP), (3) individual sector/block lock bits (32 sectors + 62 blocks), and (4) OTP-locked security registers. Protection mode is selected via the WPS bit in Status Register-3 - WPS=0 enables BP/TB/SEC; WPS=1 enables individual locks.
Can W25Q16JWSSIQ TR be used for execute-in-place (XIP) applications?
Yes - the W25Q16JWSSIQ TR is explicitly designed for XIP operation. Its 133 MHz Quad I/O interface, Fast Read Quad I/O (EBh) instruction, and uniform 4KB sector architecture allow microcontrollers to execute code directly from flash with minimal latency. XIP performance is further enhanced by Erase/Program Suspend, enabling background updates without halting active code execution.
What package type and markings identify W25Q16JWSSIQ TR?
W25Q16JWSSIQ TR is supplied in an 8-pin SOIC 208-mil package (Package Code SS), marked on top with "W25Q16JW" followed by date code and traceability symbols. The "SS" suffix confirms SOIC-208, "I" denotes industrial temperature grade (–40°C to +85°C), "Q" indicates lead-free/RoHS compliance, and "TR" specifies tape-and-reel packaging (1,000 pcs/reel).
W25Q16JWSSIQ 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:
- 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
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- 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
W25Q16JWSSIQ TR FAQ
1.How can I place an order for W25Q16JWSSIQ TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16JWSSIQ 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 W25Q16JWSSIQ TR reliable?
The price and inventory of W25Q16JWSSIQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16JWSSIQ TR is usually 5 days.
3.What payment methods are accepted for W25Q16JWSSIQ TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16JWSSIQ TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16JWSSIQ TR?
W25Q16JWSSIQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16JWSSIQ 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 W25Q16JWSSIQ TR?
For technical support, including W25Q16JWSSIQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16JWSSIQ TR requirements.
6.How does Aetrix verify that W25Q16JWSSIQ TR is sourced from the original manufacturer or authorized distributors?
All W25Q16JWSSIQ 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 W25Q16JWSSIQ TR meets industry standards.
7.What is the process for return or replacement of W25Q16JWSSIQ TR?
All W25Q16JWSSIQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16JWSSIQ 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 W25Q16JWSSIQ TR part is unused and in its original packaging.
Return procedure for W25Q16JWSSIQ TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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