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Winbond Electronics Corporation W25Q16JWBYIQ
- Part No.:
- W25Q16JWBYIQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-UFBGA, WLCSP
- Datasheet:
-
W25Q16JWBYIQ.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:2,336
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Product details
Overview
W25Q16JWBYIQ from Winbond is a 1.8V, 16M-bit (2MB) serial NOR flash memory supporting Standard, Dual, and Quad SPI interfaces with up to 133MHz Quad I/O clock rate, 4KB uniform sector architecture, and hardware/software write protection - deployed in embedded boot code storage, firmware update partitions, and XIP-capable microcontroller systems.
For engineers reviewing the W25Q16JWBYIQ datasheet, W25Q16JWBYIQ pinout, W25Q16JWBYIQ application, or W25Q16JWBYIQ equivalent, key selection criteria include its 1.65–1.95V supply range, -40°C to +105°C industrial-plus grade operation, 100K program-erase cycles, 20-year data retention, and support for Fast Read Quad I/O (EBh) delivering up to 66MB/s sustained throughput.
Technical Context
The W25Q16JWBYIQ implements a quad-SPI-compatible interface with configurable IO0–IO3 pins activated via non-volatile Quad Enable (QE) bit in Status Register-2; it supports SPI modes 0 and 3, and requires /CS low-to-high transition before instruction acceptance after power-up.
Its memory array comprises 8192 × 256-byte pages (2MB total), organized into 512 erasable 4KB sectors and 32 erasable 64KB blocks; erase/program suspend/resume, individual block lock (36h/39h), and three 256-byte security registers enable robust firmware integrity management in safety-critical applications.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), enabling full MCU boot image + parameter storage in single device |
| Supply Voltage | 1.65V to 1.95V - compatible with modern low-voltage SoCs and reduces system-level power conversion complexity |
| Quad SPI Clock Rate | Up to 133 MHz - delivers 532 Mbps effective bandwidth (133 MHz × 4 lines) for XIP execution latency reduction |
| Erase Granularity | Uniform 4KB sectors (512 total), 32KB/64KB blocks - enables fine-grained firmware delta updates without full chip erase |
| Endurance & Retention | 100,000 program-erase cycles minimum; >20 years data retention at +85°C - validated for industrial field-deployed firmware |
| Operating Temperature | -40°C to +105°C - qualified for industrial-plus grade environments including automotive under-hood and motor control |
| Security Features | 64-bit unique ID, SFDP register, three 256-byte OTP-capable security registers, and individual sector/block lock bits - supports secure boot chain binding |
Pinout & Package
W25Q16JWBYIQ is packaged in an 8-ball WLCSP (package code BY), measuring 2.0 mm × 2.2 mm × 0.4 mm, suitable for space-constrained PCB layouts in portable and IoT edge devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A2 | /CS | Active-low chip select - must track VCC during power-up/down; high-impedance DO when deasserted |
| B2 | DO (IO1) | Data output (Standard/Dual SPI) or bidirectional I/O1 (Dual/Quad SPI) - used for read status/data on falling CLK edge |
| C2 | /WP (IO2) | Hardware write protect input (active low); becomes IO2 in Quad SPI mode when QE=1 |
| D2 | DI (IO0) | Data input (Standard SPI) or bidirectional I/O0 (Dual/Quad SPI) - accepts instructions/addresses on rising CLK edge |
| C1 | CLK | Serial clock input - defines timing for all SPI transfers; supports modes 0 and 3 |
| B1 | /HOLD (IO3) | Hold input (Standard/Dual SPI); becomes IO3 in Quad SPI mode when QE=1 - pauses ongoing transfer without deselecting device |
| A1 | VCC | 1.65–1.95V core supply - powers internal logic, charge pump, and I/O buffers |
| D1 | GND | Ground reference - shared return path for all internal circuits and I/O signaling |
Key Features
| Feature | Design Value |
|---|---|
| Quad I/O Read (EBh) | Enables 66 MB/s continuous data transfer - eliminates bottleneck for real-time firmware loading and XIP execution |
| Erase/Program Suspend | Allows background erase or program to be paused and resumed - critical for deterministic interrupt response in RTOS environments |
| Individual Block Lock (36h/39h) | Permits locking/unlocking of specific 64KB blocks or 4KB sectors - enforces immutable bootloader partitioning |
| Security Registers (3 × 256B) | OTP-programmable storage for cryptographic keys or calibration data - isolated from main array with separate lock bits |
| JEDEC SFDP Support | Standardized, self-describing parameter table accessible via 5Ah command - enables automatic driver configuration in Linux/Bare-Metal |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Memory |
|---|---|
|
Use Scenario: Storing firmware images and configuration parameters for programmable logic controllers operating in harsh factory environments with wide temperature swings. IC Role / Device Role / Timing Role: Primary non-volatile boot memory providing XIP-capable code execution and field-upgradable firmware partitions. Use Value: 4KB sector granularity enables atomic firmware patching; -40°C to +105°C rating ensures reliability across ambient extremes without thermal derating. |
Use Scenario: Hosting boot code and safety-critical sensor fusion algorithms for camera/radar ECUs in advanced driver-assistance systems. IC Role / Device Role / Timing Role: Secure, high-speed boot memory interfaced directly to ARM Cortex-R5/R7 cores via Quad SPI. Use Value: 64-bit unique ID binds firmware to hardware; security registers store asymmetric key material; Quad I/O enables sub-100ms boot time. |
| IoT Edge Device OTA Storage | Medical Imaging System Parameter Archive |
|
Use Scenario: Holding dual firmware images and encrypted OTA update payloads in battery-powered wireless sensors and gateways. IC Role / Device Role / Timing Role: Dual-bank flash storage with hardware write protection preventing corruption during power-loss-prone over-the-air updates. Use Value: <0.1 µA power-down current extends battery life; individual sector locks prevent accidental overwrite of active firmware bank. |
Use Scenario: Archiving calibrated sensor coefficients, DICOM metadata templates, and regulatory compliance logs in portable ultrasound and X-ray units. IC Role / Device Role / Timing Role: Tamper-resistant parameter storage with OTP security registers for FDA/IEC 62304 traceability requirements. Use Value: Three 256-byte security registers store digitally signed calibration data; SFDP register simplifies driver porting across imaging platform variants. |
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 |
|---|---|---|---|
| MX25L1633FZUI-10G | 3V supply (2.7–3.6V), no WLCSP option, max Quad SPI clock 80MHz, lacks individual block lock and security registers | Suitable for legacy 3V systems but not drop-in for 1.8V designs; limited security features reduce suitability for certified medical/automotive use | Select only if 3V compatibility and lower cost outweigh need for industrial-plus temp grade and advanced security |
| S25FL132K0XMFI010 | 1.8V supply, 16Mb density, SOIC/WSON packages only, no WLCSP, supports HyperBus but not Quad I/O, 10-year retention spec | Targeted at Cypress/PSoC ecosystems; HyperBus interface adds controller complexity vs SPI simplicity of W25Q16JWBYIQ | Prefer when existing design uses Cypress HyperFlash controllers; avoid when board space or Quad SPI performance is critical |
Compared with MX25L1633FZUI-10G and S25FL132K0XMFI010, W25Q16JWBYIQ uniquely combines WLCSP packaging, 133MHz Quad I/O, industrial-plus temperature range, and individual sector locking - making it optimal for next-gen compact, secure, and thermally demanding embedded systems.
Availability
W25Q16JWBYIQ is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS modules, IoT edge gateways, medical imaging subsystems, and portable instrumentation requiring stable component supply across extended product lifecycles.
Supply support for W25Q16JWBYIQ 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 SPI NOR/NAND flash, RAM, and mobile DRAM, serving industrial, automotive, and communications markets since 1987.
The W25Q16JWBYIQ belongs to Winbond's W25Q "JW" series - designed specifically for industrial-plus and automotive-qualified applications requiring extended temperature operation, enhanced reliability, and advanced security features beyond standard SPI flash.
FAQ
What is the package type and dimensions of W25Q16JWBYIQ?
W25Q16JWBYIQ uses an 8-ball WLCSP (Wafer-Level Chip Scale Package) with dimensions of 2.0 mm × 2.2 mm × 0.4 mm and ball pitch of 0.4 mm. This ultra-compact package is optimized for high-density PCB layouts in portable and space-constrained embedded systems. The 'BY' in the part number explicitly denotes the WLCSP variant per Winbond's ordering matrix.
Does W25Q16JWBYIQ support hardware reset via a dedicated /RESET pin?
No, W25Q16JWBYIQ does not include a dedicated hardware /RESET pin. That feature is only available on SOIC-16 and TFBGA packages per Winbond documentation. W25Q16JWBYIQ relies solely on software reset using the Enable Reset (66h) and Reset Device (99h) instruction sequence, which takes approximately 30 µs to complete. The /HOLD pin (B1) functions as IO3 in Quad SPI mode and cannot serve as /RESET.
How is Quad SPI mode enabled on W25Q16JWBYIQ?
Quad SPI mode on W25Q16JWBYIQ is enabled by setting the Quad Enable (QE) bit in Status Register-2 using the Write Status Register-2 (31h) instruction. Once QE = 1, the /WP (IO2) and /HOLD (IO3) pins become bidirectional I/O lines, allowing four-bit-wide data transfers. The device must be in Standard or Dual SPI mode to issue this command; Quad SPI instructions like EBh will fail if QE is not set.
What write protection mechanisms does W25Q16JWBYIQ provide?
W25Q16JWBYIQ provides layered write protection: hardware /WP pin (active low), software-configurable block/sector protect bits (BP2–BP0, TB, SEC, CMP), Status Register Protect (SRP/SRL), individual block/sector lock bits (36h/39h), and Power-down instruction lock. The WPS bit selects between BP/TB-based or individual lock-based schemes. All protections remain active across power cycles unless explicitly cleared.
Is W25Q16JWBYIQ compatible with JEDEC-standard SFDP and Unique ID features?
Yes, W25Q16JWBYIQ fully supports JEDEC JESD216B SFDP (Serial Flash Discoverable Parameters) via Read SFDP Register (5Ah) command, enabling automatic driver initialization. It also provides a factory-programmed, globally unique 64-bit ID readable via Read Unique ID Number (4Bh), essential for device authentication, secure boot binding, and traceability in regulated industries.
W25Q16JWBYIQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-UFBGA, WLCSP
- 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-WLCSP (1.56x2.16)
W25Q16JWBYIQ FAQ
1.How can I place an order for W25Q16JWBYIQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16JWBYIQ 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 W25Q16JWBYIQ reliable?
The price and inventory of W25Q16JWBYIQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16JWBYIQ is usually 5 days.
3.What payment methods are accepted for W25Q16JWBYIQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16JWBYIQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16JWBYIQ?
W25Q16JWBYIQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16JWBYIQ 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 W25Q16JWBYIQ?
For technical support, including W25Q16JWBYIQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16JWBYIQ requirements.
6.How does Aetrix verify that W25Q16JWBYIQ is sourced from the original manufacturer or authorized distributors?
All W25Q16JWBYIQ 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 W25Q16JWBYIQ meets industry standards.
7.What is the process for return or replacement of W25Q16JWBYIQ?
All W25Q16JWBYIQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16JWBYIQ, 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 W25Q16JWBYIQ part is unused and in its original packaging.
Return procedure for W25Q16JWBYIQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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