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Winbond Electronics Corporation W25Q16JWUUIQ
- Part No.:
- W25Q16JWUUIQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
W25Q16JWUUIQ.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8USON
- Quantity:
- Payment:
- Shipping:
Inventory:1,912
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Product details
Overview
W25Q16JWUUIQ from Winbond is a 16 M-bit (2 MB) 1.8 V serial NOR flash memory supporting Standard, Dual, and Quad SPI interfaces with up to 133 MHz clock frequency, 4 KB uniform sector architecture, and hardware/software write protection - deployed in industrial-grade embedded systems for code XIP, firmware storage, and parameter retention.
For engineers reviewing the W25Q16JWUUIQ datasheet, W25Q16JWUUIQ pinout, W25Q16JWUUIQ application, or W25Q16JWUUIQ equivalent, this page delivers verified pin functions, JEDEC-compliant ID support, SFDP register access, 64-bit unique serial number, and real-world erase/program cycle endurance (100K cycles) - critical for BOM validation and long-life design assurance.
Technical Context
The W25Q16JWUUIQ 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-line bidirectional data transfer at up to 532 MB/s effective throughput (133 MHz × 4). It supports SPI modes 0 and 3 with configurable output driver strength (DRV1/DRV0).
Its memory array comprises 8192 pages of 256 bytes each, organized into 512 erasable 4 KB sectors and 32 erasable 64 KB blocks. Erase/program suspend/resume capability enables concurrent background operations, while volatile/non-volatile status register bits (BP2–BP0, TB, SEC, CMP, SRP, WPS) provide hierarchical, field-configurable memory protection.
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 | 1.65 V to 1.95 V - compatible with low-power 1.8 V system rails |
| Max Clock Frequency | 133 MHz for Quad I/O - enables 532 MB/s effective read bandwidth |
| Erase Granularity | 4 KB sector / 32 KB block / 64 KB block / full chip - supports fine-grained firmware updates |
| Endurance & Retention | 100,000 program/erase cycles; >20 years data retention at 25°C |
| Operating Temperature | −40°C to +85°C (Industrial Grade) - validated for extended thermal cycling |
| Security Features | 64-bit unique ID, three 256-byte security registers, OTP lock bits (LB3–LB1), SFDP register |
Pinout & Package
W25Q16JWUUIQ is packaged in an 8-pad XSON 2×3×0.4 mm (Package Code XH), with exposed pad for thermal dissipation and space-constrained PCB layouts.
| 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) | Bidirectional Data I/O | Output in Standard/Dual SPI; IO1 in Dual/Quad SPI; used for Fast Read Dual/Quad Output |
| /WP (IO2) | Bidirectional Data I/O / Hardware Write Protect | Input-only /WP when QE=0; becomes IO2 in Quad SPI (QE=1); active-low hardware lock |
| GND | Ground Reference | Signal and power return; connects to PCB ground plane for noise immunity |
| DI (IO0) | Bidirectional Data I/O | Input in Standard SPI; IO0 in Dual/Quad SPI; used for all instruction/address/data input |
| CLK | Serial Clock Input | Edge-triggered timing reference; supports SPI modes 0 and 3; max 133 MHz in Quad I/O |
| /HOLD (IO3) | Bidirectional Data I/O / Hold Control | Hold input when QE=0; becomes IO3 in Quad SPI (QE=1); pauses ongoing transfers when low |
| VCC | Power Supply | 1.65–1.95 V core supply; internal LDO ensures stable internal voltage regulation |
Key Features
| Feature | Design Value |
|---|---|
| Dual/Quad SPI Interface | Configurable via non-volatile QE bit; enables 2×–4× throughput vs standard SPI without bus redesign |
| Erase/Program Suspend | Allows temporary pause of active erase/program to service urgent reads - critical for real-time response |
| Hierarchical Write Protection | Combines volatile/non-volatile status bits (BP2–BP0, TB, SEC), /WP pin, and individual block locks (39h/36h) |
| JEDEC Compliance | Supports Manufacturer/Device ID (90h/92h/94h), JEDEC ID (9Fh), and SFDP register (5Ah) for auto-configuration |
| Unique Device Identity | Factory-programmed 64-bit serial number accessible via 4Bh instruction - enables secure device binding |
Applications
| Industrial PLC Firmware Storage | Medical Device Boot Code |
|---|---|
|
Use Scenario: Storing boot firmware and configuration parameters in DIN-rail mounted programmable logic controllers operating continuously in factory environments. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable Quad SPI interface for deterministic boot latency and field-upgradable firmware. Use Value: 4 KB sector granularity enables atomic firmware patching; 100K endurance supports decades of over-the-air updates under industrial thermal stress. |
Use Scenario: Holding certified bootloader and calibration data in portable diagnostic equipment requiring traceable, tamper-resistant memory. IC Role / Device Role / Timing Role: Secure, low-voltage (1.8 V) flash with 64-bit unique ID and OTP-lockable security registers for regulatory compliance. Use Value: Individual block locks (39h) prevent unauthorized reprogramming; SFDP register enables automatic driver initialization across product variants. |
| Automotive Infotainment UI Assets | Smart Energy Meter Firmware |
|
Use Scenario: Caching graphical assets and voice prompts in automotive head units where fast read throughput reduces UI lag during cold start. IC Role / Device Role / Timing Role: High-speed Quad I/O flash delivering 66 MB/s continuous read for rapid asset decompression and rendering. Use Value: 133 MHz Quad SPI clock supports 532 MB/s effective bandwidth - eliminates bottlenecks in graphics-intensive HMI boot sequences. |
Use Scenario: Storing metrology firmware and tariff tables in ANSI C12.22-compliant smart meters deployed in unattended outdoor substations. IC Role / Device Role / Timing Role: Industrial-grade flash with −40°C to +85°C operation and >20-year data retention for lifetime meter calibration integrity. Use Value: Hardware /WP pin + non-volatile BP bits ensure firmware immutability against ESD transients and brown-out events in grid-edge deployments. |
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 | 3 V supply (2.7–3.6 V); same 16 M-bit density, Quad SPI, but no 64-bit UID or SFDP register | Requires separate 3 V rail; lacks auto-discovery features needed for scalable firmware drivers | Select only if legacy 3 V system integration outweighs configurability and security trade-offs |
| S25FL132K0XMFI011 | 1.8 V supply; 16 M-bit; includes HyperBus interface option; higher 166 MHz max clock but larger 8-pin SOIC package | Supports both SPI and HyperBus; better for high-throughput applications but incompatible pinout | Choose when migrating to HyperBus or needing >133 MHz bandwidth; not drop-in for space-constrained XSON layouts |
Compared with MX25L1633FZUI-10G and S25FL132K0XMFI011, W25Q16JWUUIQ uniquely balances 1.8 V operation, XSON 2×3 mm footprint, JEDEC-compliant SFDP/UID, and industrial temperature range - making it optimal for next-gen compact, secure, and field-upgradable embedded designs.
Availability
W25Q16JWUUIQ is available at Aetrix Electronics and suitable for industrial automation, medical diagnostics, automotive infotainment, and smart energy metering requiring stable component supply across extended product lifecycles.
Supply support for W25Q16JWUUIQ 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 communications markets since 1987.
The W25Q series targets high-reliability embedded systems demanding low-voltage operation, fast Quad SPI performance, and robust security features - designed specifically for code execution, firmware storage, and secure parameter retention in harsh environments.
FAQ
What is the package type and footprint of W25Q16JWUUIQ?
W25Q16JWUUIQ uses an 8-pad XSON package measuring 2 mm × 3 mm × 0.4 mm (Package Code XH), with exposed thermal pad. This ultra-compact footprint is optimized for space-constrained PCBs in portable and industrial edge devices. The pinout matches standard SPI-compatible layouts, and the package supports reflow soldering per J-STD-020 moisture sensitivity level 3.
Does W25Q16JWUUIQ support Quad SPI mode out of the box?
No - W25Q16JWUUIQ requires the Quad Enable (QE) bit in Status Register-2 to be set (via Write Status Register-2 instruction) before Quad SPI operation is active. By default, QE=0 after power-up, so /WP and /HOLD function as hardware write protect and hold inputs. Once QE=1, those pins become IO2 and IO3, enabling true 4-line bidirectional communication.
How does the W25Q16JWUUIQ handle power-up write protection?
W25Q16JWUUIQ enforces robust power-up protection: it remains in reset while VCC is below VWI (~1.5 V), then disables all program/erase instructions for tPUW (≥100 µs) after VCC exceeds VWI. Additionally, the Write Enable Latch (WEL) defaults to 0, requiring an explicit Write Enable (06h) instruction before any programming - preventing spurious writes during voltage ramp-up.
Can W25Q16JWUUIQ be used for Execute-in-Place (XIP) applications?
Yes - W25Q16JWUUIQ supports XIP via Fast Read Quad I/O (EBh) and Fast Read Quad Output (6Bh) instructions, delivering up to 66 MB/s continuous read throughput. Its uniform 4 KB sector architecture and erase/program suspend/resume capability allow deterministic interrupt servicing during code execution directly from flash, reducing RAM footprint in resource-limited microcontrollers.
What security mechanisms does W25Q16JWUUIQ provide beyond basic write protection?
W25Q16JWUUIQ provides layered security: a factory-programmed 64-bit unique ID (read via 4Bh), three 256-byte one-time-programmable (OTP) security registers, individual block/sector lock bits (36h/39h), and SFDP register (5Ah) for standardized parameter discovery. These features enable secure boot chain binding, firmware version attestation, and tamper-resistant calibration storage - validated for industrial and medical use cases.
W25Q16JWUUIQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-UFDFN Exposed Pad
- 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-USON (4x3)
W25Q16JWUUIQ FAQ
1.How can I place an order for W25Q16JWUUIQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16JWUUIQ 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 W25Q16JWUUIQ reliable?
The price and inventory of W25Q16JWUUIQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16JWUUIQ is usually 5 days.
3.What payment methods are accepted for W25Q16JWUUIQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16JWUUIQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16JWUUIQ?
W25Q16JWUUIQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16JWUUIQ 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 W25Q16JWUUIQ?
For technical support, including W25Q16JWUUIQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16JWUUIQ requirements.
6.How does Aetrix verify that W25Q16JWUUIQ is sourced from the original manufacturer or authorized distributors?
All W25Q16JWUUIQ 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 W25Q16JWUUIQ meets industry standards.
7.What is the process for return or replacement of W25Q16JWUUIQ?
All W25Q16JWUUIQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16JWUUIQ, 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 W25Q16JWUUIQ part is unused and in its original packaging.
Return procedure for W25Q16JWUUIQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q16JWUUIQ Tags
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M24C02-WMN6TP
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