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Winbond Electronics Corporation W25Q16JWUUAQ
- Part No.:
- W25Q16JWUUAQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-UFDFN Exposed Pad
- Datasheet:
-
W25Q16JWUUAQ.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8USON
- Quantity:
- Payment:
- Shipping:
Inventory:4,893
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Product details
Overview
W25Q16JWUUAQ from Winbond is a 1.8V, 16M-bit 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 delivers 66MB/s continuous read throughput in Quad I/O mode and supports XIP (execute-in-place) for code storage in space-constrained embedded systems.
For engineers reviewing the W25Q16JWUUAQ datasheet, W25Q16JWUUAQ pinout, W25Q16JWUUAQ application, or W25Q16JWUUAQ equivalent, key selection considerations include Quad Enable (QE) bit configuration, /WP and /HOLD pin multiplexing in Quad mode, 1.65–1.95V supply compliance, JEDEC SFDP register support, and hardware write protection via /WP pin with BP/TB/SEC bits.
Technical Context
The W25Q16JWUUAQ implements a flexible SPI interface with three operational modes: Standard (DI/DO), Dual (IO0/IO1), and Quad (IO0–IO3), where IO2 and IO3 are enabled only when the non-volatile Quad Enable (QE) bit in Status Register-2 is set. Its 8192 × 256-byte page array supports 4KB sector, 32KB block, 64KB block, and full-chip erase - enabling fine-grained data management in firmware update and parameter storage applications.
It integrates volatile and non-volatile status register bits for configurable protection (BP2–BP0, TB, SEC, CMP, SRP/SRL), individual block/sector lock (36h/39h), and security registers (3×256 bytes OTP-capable). The device uses internal power-on reset tracking and tPUW delay to prevent spurious writes during voltage ramp-up, and supports both software reset (66h+99h) and hardware /RESET (not present on this SOIC-8 package).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2 MB), organized as 8192 pages × 256 bytes |
| Supply Voltage | 1.65 V to 1.95 V - enables low-power operation in battery-backed or energy-efficient systems |
| Max Clock Frequency | 133 MHz in Quad I/O mode - yields 532 Mbps effective throughput (133 MHz × 4 lines) |
| Erase Granularity | Uniform 4 KB sectors (512 total), 32 KB blocks (32 total), 64 KB blocks (16 total) |
| Endurance & Retention | 100,000 program/erase cycles; >20 years data retention at 25°C |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade reliability without derating |
| Security Features | 64-bit unique ID, JEDEC SFDP register, 3×256-byte security registers with OTP lock capability |
Pinout & Package
W25Q16JWUUAQ is packaged in an 8-pin SOIC 208-mil (Package Code SS), with pin 1 marked by notch or dot. All pins are electrically identical across SOIC variants (SN/SS), USON (UU), WSON (ZP), XSON (XH), and WLCSP (BY); this variant uses standard SPI/Dual/Quad I/O pin mapping with /HOLD repurposed as IO3 in Quad mode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable: high = high-Z outputs, low = active SPI communication; must track VCC during power-up/down |
| 2 DO (IO1) | Data Output / I/O1 | Standard/Dual SPI output (DO); becomes bidirectional I/O1 in Dual/Quad mode; used for Fast Read instructions |
| 3 /WP (IO2) | Write Protect Input / I/O2 | Hardware write protect for status register when QE=0; becomes IO2 in Quad mode (QE=1); active-low |
| 4 GND | Ground Reference | Primary return path for VCC and I/O signals; requires low-impedance PCB connection to minimize noise |
| 5 DI (IO0) | Data Input / I/O0 | Standard/Dual SPI input (DI); becomes bidirectional I/O0 in Dual/Quad mode; carries instructions/addresses/data |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference: rising edge for input, falling edge for output; supports Mode 0 and Mode 3 SPI |
| 7 /HOLD (IO3) | Hold Input / I/O3 | Pauses ongoing SPI transfer when low (active-low); becomes IO3 in Quad mode (QE=1); not available as /HOLD if QE=1 |
| 8 VCC | Power Supply | 1.65–1.95 V core supply; bypass capacitor (≥1 µF) required near pin for stable operation during fast reads/writes |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI Interface | Enables 4-line data transfer (IO0–IO3) after setting QE bit - doubles bandwidth vs Dual SPI and quadruples vs Standard SPI |
| Erase/Program Suspend | Supports 75h/7Ah commands to pause/resume erase or program operations - critical for real-time systems requiring latency control |
| Individual Block Lock | 62 × 64KB blocks + 32 × 4KB top/bottom sectors each have dedicated lock bits (36h/39h) - enables granular firmware partitioning |
| Volatile/Non-Volatile Protection | Status Register bits (BP2–BP0, TB, SEC, CMP, SRP/SRL) can be set either temporarily (volatile) or permanently (non-volatile) - supports field-upgradable security policies |
| JEDEC SFDP & Unique ID | Read SFDP register (5Ah) provides auto-configurable parameters; 64-bit unique ID (4Bh) enables device-level traceability and anti-cloning |
Applications
| Firmware Storage | IoT Edge Device Boot |
|---|---|
|
Use Scenario: Storing bootloader, application firmware, and configuration tables in a microcontroller-based industrial controller. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP capability - eliminates need for external RAM loading during boot. Use Value: 133MHz Quad I/O read speed enables sub-100ms firmware load time; 4KB sectors allow atomic OTA updates without erasing full image. |
Use Scenario: Secure boot initialization in battery-powered wireless sensor nodes with constrained PCB area. IC Role / Device Role / Timing Role: Primary boot memory holding signed firmware images and cryptographic keys in security registers. Use Value: 64-bit unique ID and OTP-lockable security registers (42h/44h/48h) provide hardware-rooted device identity and key protection. |
| Industrial HMI Display | Medical Diagnostic Module |
|
Use Scenario: Storing GUI assets (fonts, icons, bitmaps) and localized language strings for a touch-screen HMI panel. IC Role / Device Role / Timing Role: High-bandwidth serial flash interfaced to display controller via Quad SPI for rapid asset streaming. Use Value: 66MB/s continuous read rate ensures zero-latency UI rendering; uniform 4KB sectors simplify partial asset updates during field service. |
Use Scenario: Retaining calibration data, patient history logs, and FDA-mandated audit trails in portable diagnostic equipment. IC Role / Device Role / Timing Role: Parameter and event log storage with hardware write protection (/WP pin + BP bits) to meet IEC 62304 data integrity requirements. Use Value: Hardware-enforced write lock prevents accidental overwrites during power transients; >20-year retention guarantees long-term record validity. |
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 |
|---|---|---|---|
| MX25L1606EZN-12G | 3V supply (2.7–3.6V); no Quad Enable bit; max 86MHz clock; lacks SFDP and unique ID | Suitable for legacy 3V systems without XIP or advanced security needs | Select when migrating from older Micron/Macronix platforms and 1.8V operation is not required |
| AT25SF161-SSHD-B | 1.7–2.0V supply; supports Quad SPI but no /HOLD-to-IO3 remapping; no individual block lock or security registers | Targeted at cost-sensitive consumer electronics with basic firmware storage | Choose for simplified design where 64-bit ID, OTP security registers, and granular locking are unnecessary |
Compared with MX25L1606EZN-12G and AT25SF161-SSHD-B, W25Q16JWUUAQ uniquely combines 1.8V operation, Quad I/O bandwidth, JEDEC SFDP, 64-bit unique ID, and individual block locking - making it the only option among the three qualified for secure, high-speed, industrial-grade firmware and parameter storage.
Availability
W25Q16JWUUAQ is available at Aetrix Electronics and suitable for industrial control systems, IoT edge gateways, and medical diagnostics equipment requiring stable component supply, long-term lifecycle assurance, and guaranteed traceability.
Supply support for W25Q16JWUUAQ 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, mobile DRAM, and code storage devices for embedded and industrial markets.
The W25Q series is designed specifically for high-reliability, low-voltage embedded applications demanding fast read performance, flexible erase granularity, and robust security - targeting code execution, firmware storage, and secure parameter logging.
FAQ
What is the supply voltage range for W25Q16JWUUAQ?
The W25Q16JWUUAQ operates from 1.65 V to 1.95 V. This narrow 1.8V nominal range enables ultra-low power consumption (as low as 0.1 µA in power-down mode) and compatibility with modern low-voltage SoCs and MCUs. Operation outside this range may cause undefined behavior or permanent damage, and the device does not support 3.3V or dual-voltage operation.
Does W25Q16JWUUAQ support Quad SPI mode, and how is it enabled?
Yes, W25Q16JWUUAQ supports Quad SPI mode using IO0–IO3. It is enabled by setting the Quad Enable (QE) bit in Status Register-2 via Write Status Register-2 (31h) instruction. When QE=1, the /WP pin becomes IO2 and /HOLD becomes IO3. The device must be configured for Quad mode before issuing Quad I/O instructions like EBh (Fast Read Quad I/O).
What package type is used for W25Q16JWUUAQ?
W25Q16JWUUAQ uses the 8-pin SOIC 208-mil package (Package Code SS), with standard pinout matching SOIC-150/208 variants. It does not include a dedicated /RESET pin - that feature is only available on SOIC-16 and TFBGA packages per Winbond documentation. The /HOLD pin functions as IO3 in Quad mode.
How many program/erase cycles does W25Q16JWUUAQ guarantee?
W25Q16JWUUAQ guarantees a minimum of 100,000 program/erase cycles per sector. This endurance rating applies across all 4KB sectors under specified operating conditions (1.65–1.95V, –40°C to +85°C) and is validated per JEDEC standards. Endurance is unaffected by use of Quad SPI mode or security register programming.
Can W25Q16JWUUAQ store unique device identifiers?
Yes, W25Q16JWUUAQ includes a factory-programmed, unalterable 64-bit unique serial number accessible via instruction 4Bh (Read Unique ID Number). This identifier is laser-trimmed during wafer test and provides hardware-level traceability for anti-counterfeiting, secure provisioning, and device authentication in certified systems.
W25Q16JWUUAQ 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, QPI, DTR
- Clock Frequency:
- 133 MHz
- Write Cycle Time - Word, Page:
- 3ms
- Access Time:
- 6 ns
- Voltage - Supply:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-USON (4x3)
W25Q16JWUUAQ FAQ
1.How can I place an order for W25Q16JWUUAQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16JWUUAQ 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 W25Q16JWUUAQ reliable?
The price and inventory of W25Q16JWUUAQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16JWUUAQ is usually 5 days.
3.What payment methods are accepted for W25Q16JWUUAQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16JWUUAQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16JWUUAQ?
W25Q16JWUUAQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16JWUUAQ 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 W25Q16JWUUAQ?
For technical support, including W25Q16JWUUAQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16JWUUAQ requirements.
6.How does Aetrix verify that W25Q16JWUUAQ is sourced from the original manufacturer or authorized distributors?
All W25Q16JWUUAQ 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 W25Q16JWUUAQ meets industry standards.
7.What is the process for return or replacement of W25Q16JWUUAQ?
All W25Q16JWUUAQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16JWUUAQ, 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 W25Q16JWUUAQ part is unused and in its original packaging.
Return procedure for W25Q16JWUUAQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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