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Winbond Electronics Corporation W25Q16JWSNIQ
- Part No.:
- W25Q16JWSNIQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
W25Q16JWSNIQ.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,023
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Product details
Overview
W25Q16JWSNIQ 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 hardware/software write protection - used for code execution (XIP), firmware storage, and parameter retention in space-constrained industrial embedded systems.
For engineers reviewing the W25Q16JWSNIQ datasheet, W25Q16JWSNIQ pinout, W25Q16JWSNIQ application, or W25Q16JWSNIQ equivalent, key selection considerations include Quad I/O timing compliance, 1.65–1.95V supply tolerance, -40°C to +85°C industrial grade operation, and SOIC-8 150-mil package compatibility with legacy PCB footprints.
Technical Context
The W25Q16JWSNIQ implements a quad-I/O SPI interface with non-volatile Quad Enable (QE) bit in Status Register-2; when QE=1, /WP and /HOLD pins become IO2 and IO3, enabling 4-bit bidirectional data transfer at up to 532MB/s effective throughput (133MHz × 4). It supports JEDEC-standard SFDP register, 64-bit unique ID, and three 256-byte security registers.
Its erase architecture includes uniform 4KB sectors (512 total), 32KB blocks (32 total), and 64KB blocks (16 total), with suspend/resume capability for program/erase operations. Write protection combines volatile/non-volatile status bits (BP2–BP0, TB, SEC, CMP), hardware /WP pin control, and individual block lock bits accessible via dedicated instructions (36h/39h/3Dh).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), organized as 8192 × 256-byte pages |
| Supply Voltage | 1.65V to 1.95V - enables direct integration into 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 |
| Erase Granularity | 4KB sector / 32KB block / 64KB block / full chip - supports fine-grained firmware partitioning |
| Endurance & Retention | 100,000 program/erase cycles minimum; >20 years data retention at 85°C |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade reliability without derating |
| Security Features | 64-bit unique ID, SFDP register, three 256-byte OTP-capable security registers, individual block lock |
Pinout & Package
W25Q16JWSNIQ is supplied in an 8-pin SOIC-150-mil (Package Code SN) surface-mount package with standard lead pitch and footprint compatibility across legacy Winbond Q-series devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable; high-impedance DO/IOs when deasserted; must track VCC during power-up/down |
| DO (IO1) | Data Output / Bidirectional I/O1 | Standard SPI output (DO); becomes bidirectional IO1 in Dual/Quad mode; used for Fast Read Dual/Quad Output |
| /WP (IO2) | Write Protect Input / Bidirectional I/O2 | Hardware write protect (active low); remapped to IO2 when QE=1 for Quad I/O operation |
| GND | Ground Reference | Signal and power return path; decoupling capacitor required near VCC pin |
| DI (IO0) | Data Input / Bidirectional I/O0 | Standard SPI input (DI); becomes bidirectional IO0 in Dual/Quad mode; used for all instruction/address/data input |
| CLK | Serial Clock Input | Edge-triggered timing reference; supports SPI modes 0 and 3; max 133MHz in Quad I/O |
| /HOLD (IO3) | Hold Input / Bidirectional I/O3 | Pauses ongoing SPI transaction when low; remapped to IO3 when QE=1; not available in Quad mode if /RESET variant |
| VCC | Power Supply | 1.65–1.95V core supply; requires local 100nF ceramic decoupling; internal reset threshold at ~1.5V |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O SPI Interface | Enables 4-line bidirectional data transfer (IO0–IO3) after QE bit set - doubles bandwidth vs. Dual SPI |
| Erase/Program Suspend | Allows temporary halt of active erase/program to service high-priority reads - critical for real-time XIP |
| Volatile & Non-Volatile Protection | Combines SRP/SRL bits (non-volatile) with WEL (volatile) to enforce multi-layer write lock hierarchy |
| Individual Block Lock | 62 × 64KB blocks + 32 × 4KB top/bottom sectors each have dedicated lock bit - enables per-module firmware security |
| JEDEC SFDP Support | Standardized flash parameter table readable via 5Ah command - enables automatic driver configuration in bootloaders |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Image |
|---|---|
|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers operating continuously in factory environments. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP support for deterministic boot and runtime execution. Use Value: 4KB sector granularity allows independent update of communication stacks without disturbing control logic; 100K endurance ensures >10-year field life under frequent OTA updates. |
Use Scenario: Holding certified boot firmware and calibration data in portable diagnostic equipment requiring regulatory traceability. IC Role / Device Role / Timing Role: Secure, tamper-resistant storage for signed bootloader and device-specific calibration tables. Use Value: 64-bit unique ID enables per-unit cryptographic binding; security registers store encrypted keys inaccessible via standard SPI commands. |
| Automotive Infotainment UI Assets | Smart Energy Meter Parameter Tables |
|
Use Scenario: Caching graphical assets, voice prompts, and localization strings in head-unit displays with limited RAM. IC Role / Device Role / Timing Role: High-speed Quad I/O read source for GUI rendering engine during boot and runtime. Use Value: 133MHz Quad I/O delivers 66MB/s burst reads - eliminates frame stutter during asset loading; -40°C to +85°C rating meets AEC-Q100 ambient requirements. |
Use Scenario: Retaining tariff schedules, metering logs, and utility communication profiles in ANSI C12.22-compliant smart meters. IC Role / Device Role / Timing Role: Field-updatable parameter storage with hardware write protection against accidental corruption. Use Value: Hardware /WP pin + BP bits prevent unauthorized modification during power glitches; 20-year retention guarantees data integrity over full product lifecycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash memory applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L1606EM2I-12G | 3V supply (2.7–3.6V); no Quad I/O; max 86MHz clock; lacks SFDP and unique ID | Suitable only for legacy 3V systems without XIP or secure boot requirements | Select only if voltage domain mandates 3V and bandwidth <30MB/s suffices |
| S25FL116K0XMFI041 | 1.8V supply; Quad I/O supported; 80MHz max clock; Cypress-compatible command set; no individual block lock | Compatible for basic firmware storage but lacks per-sector lock and 64-bit UID for unit-level security | Prefer when migrating from Cypress ecosystem; verify bootloader SPI mode mapping |
Compared with MX25L1606EM2I-12G and S25FL116K0XMFI041, W25Q16JWSNIQ uniquely delivers 133MHz Quad I/O, individual block lock, and JEDEC SFDP in a single 1.8V industrial-grade package - making it optimal for next-generation secure, high-bandwidth embedded boot storage.
Availability
W25Q16JWSNIQ is available at Aetrix Electronics and suitable for industrial PLC firmware storage, medical device boot image retention, and automotive infotainment UI caching requiring stable component supply, long-term lifecycle assurance, and guaranteed SOIC-150-mil footprint compatibility.
Supply support for W25Q16JWSNIQ 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 serial NOR/NAND flash, RAM, and mobile DRAM.
The W25Q16JWSNIQ belongs to Winbond's W25Q "JW" series - designed specifically for industrial and extended-temperature applications demanding high reliability, low-voltage operation, and advanced security features in compact packages.
FAQ
What is the maximum clock frequency supported by W25Q16JWSNIQ in Quad I/O mode?
W25Q16JWSNIQ supports up to 133MHz in Quad I/O mode, enabling a theoretical peak throughput of 532MB/s (133MHz × 4 bits). This is confirmed in the AC Electrical Characteristics section (Section 9.6) of the official datasheet, where tV (clock period) is specified as ≤7.5ns. The actual achievable rate depends on host controller timing margins and PCB layout quality.
Does W25Q16JWSNIQ support hardware reset via a dedicated /RESET pin?
No, W25Q16JWSNIQ does not include a dedicated hardware /RESET pin. The /HOLD pin (Pin 7) serves dual function as /HOLD or /RESET only in SOIC-16 and TFBGA packages - not in the SOIC-8 150-mil variant like W25Q16JWSNIQ. Reset must be performed via software sequence: Enable Reset (66h) followed by Reset Device (99h), which takes ~30µs.
How is write protection implemented on W25Q16JWSNIQ?
W25Q16JWSNIQ implements multi-layer write protection: (1) hardware via active-low /WP pin, (2) software via Status Register bits (BP2–BP0, TB, SEC, CMP, SRP), and (3) individual block lock bits addressable via 36h/39h instructions. The WPS bit in Status Register-3 selects between block-protect and individual-lock schemes. All layers require Write Enable (06h) before activation.
What package type is used for W25Q16JWSNIQ?
W25Q16JWSNIQ uses the 8-pin SOIC-150-mil package (Package Code SN), with 1.27mm lead pitch and standard JEDEC MS-012AC footprint. This matches legacy W25Qxx family variants and ensures drop-in compatibility in existing industrial PCB designs without layout changes.
Can W25Q16JWSNIQ be used for execute-in-place (XIP) applications?
Yes, W25Q16JWSNIQ supports XIP via Dual and Quad SPI interfaces. Its 133MHz Quad I/O clock and Fast Read Quad I/O (EBh) instruction enable deterministic instruction fetch latency. The device's uniform 4KB sector architecture and erase/program suspend capability make it suitable for real-time XIP in resource-constrained microcontrollers without external RAM buffering.
W25Q16JWSNIQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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
W25Q16JWSNIQ FAQ
1.How can I place an order for W25Q16JWSNIQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16JWSNIQ 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 W25Q16JWSNIQ reliable?
The price and inventory of W25Q16JWSNIQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16JWSNIQ is usually 5 days.
3.What payment methods are accepted for W25Q16JWSNIQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16JWSNIQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16JWSNIQ?
W25Q16JWSNIQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16JWSNIQ 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 W25Q16JWSNIQ?
For technical support, including W25Q16JWSNIQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16JWSNIQ requirements.
6.How does Aetrix verify that W25Q16JWSNIQ is sourced from the original manufacturer or authorized distributors?
All W25Q16JWSNIQ 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 W25Q16JWSNIQ meets industry standards.
7.What is the process for return or replacement of W25Q16JWSNIQ?
All W25Q16JWSNIQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16JWSNIQ, 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 W25Q16JWSNIQ part is unused and in its original packaging.
Return procedure for W25Q16JWSNIQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q16JWSNIQ Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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