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Winbond Electronics Corporation W25Q16FWZPIQ
- Part No.:
- W25Q16FWZPIQ
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-WDFN Exposed Pad
- Datasheet:
-
W25Q16FWZPIQ.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:4,954
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Product details
Overview
W25Q16FWZPIQ from Winbond is a 1.8V, 16M-bit serial NOR flash memory supporting Standard/Dual/Quad SPI and QPI interfaces, organized as 8192 × 256-byte pages with 4KB uniform sectors, 32KB/64KB blocks, and 100K program-erase cycles - deployed for XIP code execution, firmware storage, and parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q16FWZPIQ datasheet, W25Q16FWZPIQ pinout, W25Q16FWZPIQ application, or W25Q16FWZPIQ equivalent, key selection criteria include 104MHz SPI clock support, Quad Enable (QE) bit configuration, /HOLD vs /RESET functional mode dependency on QE state, and compatibility with JEDEC SFDP, Unique ID, and 3×256-byte security registers.
Technical Context
The W25Q16FWZPIQ implements a flexible SPI-compatible interface with mode-selectable operation: Standard SPI uses DI/DO unidirectionally; Dual/Quad SPI repurposes /WP and /HOLD as IO2/IO3 when the non-volatile QE bit in Status Register-2 is set. QPI mode requires explicit entry via 0x38 instruction and reduces instruction overhead to two clocks using all four I/O lines.
Its architecture supports concurrent erase/program suspend-resume, top/bottom/complement sector protection, volatile and non-volatile status register bits (BP2–BP0, TB, SEC, CMP, SRP0/SRP1), and hardware write protection via active-low /WP and /HOLD pins - with /HOLD functionality disabled in Quad/QPI modes and /RESET available only when QE=0 in 8-pin packages.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2 MB), organized as 8192 × 256-byte programmable pages |
| Supply Voltage | 1.65 V to 1.95 V - enables low-power operation in battery-backed or energy-sensitive designs |
| Max Clock Frequency | 104 MHz SPI; enables 208 MB/s dual-I/O and 416 MB/s quad-I/O effective throughput |
| Erase Granularity | Uniform 4 KB sectors (512 total), 32 KB blocks (32 total), 64 KB blocks (16 total), full-chip erase |
| Endurance & Retention | 100,000 program-erase cycles per sector; >20 years data retention at +25°C |
| Security Features | 64-bit unique ID, three 256-byte OTP-lockable security registers, SFDP discoverability |
| Operating Temp | –40°C to +85°C - qualified for industrial-grade embedded deployment |
Pinout & Package
W25Q16FWZPIQ is packaged in an 8-pin WSON 6×5-mm (package code ZP), with exposed pad for thermal dissipation and RoHS-compliant finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable: high = device deselected (high-Z DO, standby current); low = selected and responsive to instructions |
| DO (IO1) | Data Output / Bidirectional I/O1 | Standard/Dual SPI output; becomes bidirectional IO1 in Dual/Quad/QPI modes - used for read data and status |
| /WP (IO2) | Write Protect Input / Bidirectional I/O2 | Hardware write lock for status register when QE=0; repurposed as IO2 in Quad/QPI modes (QE=1) |
| GND | Ground Reference | Primary return path for VCC and signal currents; must be low-impedance for stable timing and noise immunity |
| DI (IO0) | Data Input / Bidirectional I/O0 | Standard SPI input for instructions/addresses/data; becomes bidirectional IO0 in Dual/Quad/QPI modes |
| CLK | Serial Clock Input | Edge-triggered timing reference: rising edge for input, falling edge for output in Standard/Dual modes |
| /HOLD or /RESET (IO3) | Hold Input / Reset Input / Bidirectional I/O3 | Active-low pause control in Standard/Dual modes; functions as /RESET only when QE=0; becomes IO3 in Quad/QPI |
| VCC | Power Supply | 1.65–1.95 V core supply; requires local decoupling (0.1 µF ceramic) near pin for stable read/write margins |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead from 8 to 2 clocks via 4-line parallel instruction fetch - critical for deterministic XIP latency |
| Erase/Program Suspend-Resume | Allows interruption of long erase/program operations to service higher-priority tasks, then resume without data loss |
| Flexible Memory Protection | Hardware /WP pin + software-configurable BP/TB/SEC/CMP bits enable granular 4KB–full-array locking - prevents accidental firmware overwrite |
| Continuous Read Mode | Enables true execute-in-place (XIP) with wrap lengths of 8/16/32/64 bytes and ≤8-clock address setup - eliminates external buffer need |
| JEDEC Compliance | Supports standard Manufacturer/Device ID (90h/92h/94h), JEDEC ID (9Fh), and SFDP register (5Ah) - ensures toolchain and bootloader interoperability |
Applications
| IoT Edge Node Firmware Storage | Industrial HMI Code Execution |
|---|---|
|
Use Scenario: Storing boot firmware, OTA update images, and calibration tables in battery-powered sensor nodes with minimal PCB area. IC Role / Device Role / Timing Role: Non-volatile code and data storage with XIP-capable Quad SPI interface for direct MCU execution. Use Value: 4KB sector granularity enables atomic OTA patching; 1µA power-down current extends battery life; 100K endurance supports field firmware updates. |
Use Scenario: Hosting GUI assets, application logic, and localized language strings in panel-mounted HMIs operating in harsh factory environments. IC Role / Device Role / Timing Role: High-reliability firmware memory with hardware write protection and -40°C to +85°C operation. Use Value: /WP pin + BP bits prevent unauthorized UI code modification; 20-year data retention ensures long-term deployment integrity. |
| Medical Diagnostic Device Boot Memory | Automotive Infotainment Configuration Storage |
|
Use Scenario: Securing boot loader and regulatory-critical diagnostic algorithms in portable ultrasound and ECG devices requiring traceable firmware versions. IC Role / Device Role / Timing Role: Trusted firmware repository with 64-bit unique ID and OTP-lockable security registers for audit logging. Use Value: Unique ID enables device-level firmware version tracking; security registers store cryptographic keys with one-time-programmable locks. |
Use Scenario: Storing vehicle-specific UI themes, audio profiles, and navigation map metadata in infotainment head units with frequent software updates. IC Role / Device Role / Timing Role: High-speed configuration memory supporting fast UI reload after reset via QPI-mode continuous read. Use Value: 104MHz QPI clock enables sub-10ms theme load times; 32KB block erase allows rapid profile switching without full reflash. |
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 QPI mode; 85MHz max SPI clock; lacks security registers and unique ID | Suitable for legacy 3V systems without XIP or security requirements | Select only if voltage compatibility and absence of QPI/security features align with design constraints |
| AT25SF161-SSHD-B | 1.7–2.0V supply; supports XIP but no QPI; includes secure OTP area and 64-bit ID; 100MHz SPI clock | Better suited for designs requiring secure OTP but not QPI acceleration | Prefer when secure one-time provisioning outweighs QPI throughput gains |
Compared with W25Q16FWZPIQ, MX25L1606EZN-12G offers lower cost in 3V systems but sacrifices QPI, security, and 1.8V operation; AT25SF161-SSHD-B provides comparable security and voltage range but omits QPI's 2-clock instruction efficiency - making W25Q16FWZPIQ optimal for high-throughput XIP in 1.8V industrial designs.
Availability
W25Q16FWZPIQ is available at Aetrix Electronics and suitable for IoT edge node firmware storage, industrial HMI code execution, medical diagnostic device boot memory, and automotive infotainment configuration storage requiring stable component supply, long-lifecycle assurance, and RoHS-compliant packaging.
Supply support for W25Q16FWZPIQ 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 DRAM, mobile DRAM, and serial flash memory solutions for consumer, industrial, and automotive markets.
The W25Q series was designed specifically for high-performance, low-voltage embedded systems requiring reliable XIP, flexible memory protection, and compact packaging - with W25Q16FWZPIQ targeting 1.8V applications demanding speed, security, and endurance.
FAQ
What is the supply voltage range supported by the W25Q16FWZPIQ?
The W25Q16FWZPIQ operates from 1.65 V to 1.95 V. This narrow 1.8V nominal range enables ultra-low-power operation while maintaining robust read/write margins across temperature. It is incompatible with 3.3V or 2.5V SPI buses without level translation, and its internal regulators and I/O drivers are optimized exclusively for this voltage window - ensuring stable performance in battery-powered and energy-harvesting designs where W25Q16FWZPIQ is commonly deployed.
Does the W25Q16FWZPIQ support execute-in-place (XIP) operation?
Yes, the W25Q16FWZPIQ supports true XIP via Continuous Read Mode with wrap lengths of 8/16/32/64 bytes and as few as 8 clocks to address memory. When paired with a QPI-capable host controller, it achieves deterministic low-latency instruction fetch - eliminating the need for external RAM buffering. This capability is validated in real-world implementations including ARM Cortex-M microcontrollers running bare-metal firmware directly from W25Q16FWZPIQ memory space.
How does the /HOLD pin function differ between Standard SPI and Quad SPI modes on the W25Q16FWZPIQ?
In Standard and Dual SPI modes (QE=0), the /HOLD pin acts as an active-low pause signal that suspends ongoing operations while preserving internal state. In Quad SPI and QPI modes (QE=1), the same physical pin becomes IO3 - a bidirectional data line - and /HOLD functionality is permanently disabled. This behavior is controlled solely by the non-volatile Quad Enable bit in Status Register-2, and cannot be overridden by external logic - a critical layout consideration when designing for multi-mode flexibility in W25Q16FWZPIQ-based systems.
What security features are implemented in the W25Q16FWZPIQ?
The W25Q16FWZPIQ integrates multiple hardware-enforced security layers: a factory-programmed 64-bit unique ID for device authentication; three 256-byte security registers with OTP (one-time-programmable) lock bits; JEDEC-standard SFDP register for parameter discovery; and configurable memory protection via BP/TB/SEC/CMP bits plus hardware /WP pin. These features collectively enable secure boot verification, firmware version binding, and tamper-resistant configuration storage - all without external crypto co-processors, making W25Q16FWZPIQ suitable for medical and industrial applications requiring traceability and integrity.
Can the W25Q16FWZPIQ be used as a direct replacement for the W25Q16JVIM?
No - the W25Q16FWZPIQ is not a pin-compatible or functional drop-in replacement for the W25Q16JVIM. While both are 16M-bit Winbond serial flashes, the W25Q16JVIM operates at 2.7–3.6V and lacks QPI mode, security registers, and the 64-bit unique ID present in W25Q16FWZPIQ. Additionally, W25Q16FWZPIQ's /HOLD and /WP pins become IO2/IO3 in Quad mode, whereas W25Q16JVIM retains dedicated /WP and /HOLD functionality regardless of interface mode - requiring PCB and firmware changes to migrate to W25Q16FWZPIQ.
W25Q16FWZPIQ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-WDFN Exposed Pad
- Packaging:
- Tube
- Product Status:
- Obsolete
- 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
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 60µs, 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-WSON (6x5)
W25Q16FWZPIQ FAQ
1.How can I place an order for W25Q16FWZPIQ through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16FWZPIQ 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 W25Q16FWZPIQ reliable?
The price and inventory of W25Q16FWZPIQ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16FWZPIQ is usually 5 days.
3.What payment methods are accepted for W25Q16FWZPIQ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16FWZPIQ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16FWZPIQ?
W25Q16FWZPIQ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16FWZPIQ 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 W25Q16FWZPIQ?
For technical support, including W25Q16FWZPIQ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16FWZPIQ requirements.
6.How does Aetrix verify that W25Q16FWZPIQ is sourced from the original manufacturer or authorized distributors?
All W25Q16FWZPIQ 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 W25Q16FWZPIQ meets industry standards.
7.What is the process for return or replacement of W25Q16FWZPIQ?
All W25Q16FWZPIQ units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16FWZPIQ, 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 W25Q16FWZPIQ part is unused and in its original packaging.
Return procedure for W25Q16FWZPIQ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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