Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Memory > Memory

Winbond Electronics Corporation W25Q16FWUUIQ TR

Name: W25Q16FWUUIQ TR
Brand: Winbond Electronics Corporation
SKU: W25Q16FWUUIQ TR
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: W25Q16FWUUIQ TR

Manufacturer:: Winbond Electronics Corporation

Category:: Memory

Package:: 8-UFDFN Exposed Pad

Datasheet:: W25Q16FWUUIQ TR.pdf

Description:: IC FLASH 16MBIT SPI/QUAD 8USON

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:1,264

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

W25Q16FWUUIQ TR from Winbond is a 1.8V, 16M-bit (2MB) serial NOR flash memory supporting Standard/Dual/Quad SPI and QPI interfaces, organized into 8192 × 256-byte pages with 4KB uniform sector erase granularity, used for code execution-in-place (XIP), firmware storage, and parameter retention in space-constrained embedded systems.

For engineers reviewing the W25Q16FWUUIQ TR datasheet, W25Q16FWUUIQ TR pinout, W25Q16FWUUIQ TR application, or W25Q16FWUUIQ TR equivalent, this page delivers verified electrical specs, validated pin functions across SOIC/WSON/USON/WLCSP packages, confirmed QPI mode behavior, JEDEC ID and SFDP register support, and real-world XIP timing constraints - all grounded in Winbond's Revision J datasheet.

Technical Context

The W25Q16FWUUIQ TR implements a quad I/O-capable SPI peripheral with non-volatile Quad Enable (QE) bit in Status Register-2, enabling IO2 (/WP) and IO3 (/HOLD) during Quad SPI and QPI modes. Its architecture supports true execute-in-place operation via Continuous Read Mode with ≤8-clock instruction overhead and wrap lengths of 8/16/32/64 bytes.

It features three 256-byte Security Registers with OTP lock capability, 64-bit unique serial number, and dual write protection layers: hardware pins (/WP, /HOLD) plus software-configurable BP/TB/SEC/CMP bits in volatile and non-volatile status registers - all operating within 1.65–1.95V supply and –40°C to +85°C industrial temperature range.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Density	16 M-bit (2,097,152 bytes), enabling full firmware image storage for mid-tier microcontrollers.
Supply Voltage	1.65 V to 1.95 V - compatible with 1.8V core logic without level-shifting in modern SoCs and MCUs.
Max Clock Frequency	104 MHz SPI; enables 416 MB/s effective throughput in Quad I/O mode using Fast Read Quad I/O (EBh).
Erase Granularity	Uniform 4 KB sectors (512 total), allowing fine-grained firmware update partitioning and data logging.
Program/Erase Cycles	≥100,000 cycles per sector - sufficient for field-upgradable firmware with over-the-air (OTA) update resilience.
Data Retention	20+ years at +25°C - ensures long-term reliability in unattended industrial and automotive control modules.
Interface Modes	Standard SPI (4-wire), Dual SPI (4-wire), Quad SPI (6-wire), and QPI (6-wire, 2-clock instruction fetch) - selectable via QE bit and command set.

Pinout & Package

W25Q16FWUUIQ TR is packaged in an 8-pad USON 2x3-mm (Package Code UX), with exposed pad thermal design and lead-free RoHS-compliant construction. Pin functions are identical across SOIC, VSOP, WSON, USON, and WLCSP variants per Winbond's pin description table.

Pin/Terminal	Circuit Role	Design Meaning
/CS	Chip Select Input	Active-low enable: high = device deselected (DO high-Z, standby current); low = active communication window.
DO (IO1)	Data Output / Bidirectional I/O1	Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI/QPI - carries read data or address LSBs.
/WP (IO2)	Write Protect Input / Bidirectional I/O2	Hardware write lock for status register when QE=0; becomes IO2 in Quad SPI/QPI - requires QE=1 to enable quad mode.
GND	Ground Reference	Primary return path for VCC and all I/O signals; must be low-impedance for stable 104 MHz timing margins.
DI (IO0)	Data Input / Bidirectional I/O0	Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI/QPI - carries instructions, addresses, and program data.
CLK	Serial Clock Input	Edge-triggered master clock (Mode 0/3 supported); rising edge for input, falling edge for output - defines all timing windows.
/HOLD or /RESET (IO3)	Hold Input / Reset Input / Bidirectional I/O3	Pauses ongoing SPI transfer when active low (QE=0); becomes IO3 in Quad SPI/QPI; /RESET function only available when QE=0 and configured via SR.
VCC	Power Supply	1.65–1.95 V nominal; decoupling capacitor required within 5 mm for noise immunity at 104 MHz operation.

Key Features

Feature	Design Value
Quad Peripheral Interface (QPI)	Reduces instruction fetch overhead to 2 clocks vs. 8 in standard SPI - critical for deterministic XIP latency in real-time boot sequences.
Continuous Read with Wrap	Supports 8/16/32/64-byte burst wraps - eliminates address increment overhead during sequential code fetch, improving effective bandwidth by ≥30%.
Erase/Program Suspend & Resume	Allows interruption of long erase (up to 100 ms) or program (up to 1.2 ms) operations to service higher-priority interrupts - essential for responsive firmware updates.
Security Registers (3 × 256 B)	OTP-lockable storage for cryptographic keys, calibration data, or device-specific credentials - isolated from main array and protected by LB[3:1] bits.
JEDEC ID & SFDP Support	Enables automatic driver initialization and configuration discovery in Linux MTD and U-Boot - no hard-coded timing or geometry assumptions required.

Applications

IoT Edge Node Firmware Storage	Industrial PLC Boot Memory
Use Scenario: Storing signed firmware images and OTA update payloads in battery-powered wireless sensor nodes with strict power budgets. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP-capable Quad SPI interface, delivering <1 µA power-down current and fast wake-to-execute latency. Use Value: Enables secure, low-power firmware updates without external RAM buffering - reduces BOM cost and PCB footprint versus parallel NOR solutions.	Use Scenario: Hosting bootloader and real-time control logic in programmable logic controllers requiring deterministic startup and field-reprogrammability. IC Role / Device Role / Timing Role: Boot memory mapped via MCU's QSPI controller; leverages 104 MHz clock and QPI mode for sub-100 ms cold boot time. Use Value: Guarantees reliable execution under voltage droop (1.65 V min) and extended temperature (-40°C to +85°C), meeting IEC 61131-2 industrial requirements.
Automotive Infotainment UI Assets	Medical Device Configuration Storage
Use Scenario: Caching GUI assets (fonts, icons, bitmaps) in automotive head units where rapid UI rendering and AEC-Q100 compliance are mandatory. IC Role / Device Role / Timing Role: High-bandwidth asset cache using Fast Read Quad I/O (EBh) at 416 MB/s effective rate - minimizes UI stutter during navigation transitions. Use Value: Delivers consistent 4KB sector erase for incremental asset updates without disrupting active display rendering - avoids frame drops during partial reflash.	Use Scenario: Storing calibrated sensor coefficients, user preferences, and audit logs in Class II medical devices requiring traceable, tamper-resistant data retention. IC Role / Device Role / Timing Role: Secure parameter store leveraging 64-bit unique ID, security registers with OTP locks, and hardware write protection on BP/TB bits. Use Value: Meets FDA 21 CFR Part 11 electronic record integrity requirements through immutable device identity and configurable memory lockdown.

IoT Edge Node Firmware Storage

Industrial PLC Boot Memory

Use Scenario: Storing signed firmware images and OTA update payloads in battery-powered wireless sensor nodes with strict power budgets.

IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP-capable Quad SPI interface, delivering <1 µA power-down current and fast wake-to-execute latency.

Use Value: Enables secure, low-power firmware updates without external RAM buffering - reduces BOM cost and PCB footprint versus parallel NOR solutions.

Use Scenario: Hosting bootloader and real-time control logic in programmable logic controllers requiring deterministic startup and field-reprogrammability.

IC Role / Device Role / Timing Role: Boot memory mapped via MCU's QSPI controller; leverages 104 MHz clock and QPI mode for sub-100 ms cold boot time.

Use Value: Guarantees reliable execution under voltage droop (1.65 V min) and extended temperature (-40°C to +85°C), meeting IEC 61131-2 industrial requirements.

Automotive Infotainment UI Assets

Medical Device Configuration Storage

Use Scenario: Caching GUI assets (fonts, icons, bitmaps) in automotive head units where rapid UI rendering and AEC-Q100 compliance are mandatory.

IC Role / Device Role / Timing Role: High-bandwidth asset cache using Fast Read Quad I/O (EBh) at 416 MB/s effective rate - minimizes UI stutter during navigation transitions.

Use Value: Delivers consistent 4KB sector erase for incremental asset updates without disrupting active display rendering - avoids frame drops during partial reflash.

Use Scenario: Storing calibrated sensor coefficients, user preferences, and audit logs in Class II medical devices requiring traceable, tamper-resistant data retention.

IC Role / Device Role / Timing Role: Secure parameter store leveraging 64-bit unique ID, security registers with OTP locks, and hardware write protection on BP/TB bits.

Use Value: Meets FDA 21 CFR Part 11 electronic record integrity requirements through immutable device identity and configurable memory lockdown.

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial NOR flash applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
MX25L1606EM1I-12G	3V supply (2.7–3.6V), same 16M-bit density and SOIC8 package; lacks QPI mode and SFDP register.	Requires level-shifting for 1.8V systems; no auto-discovery - driver must be hardcoded for timing and geometry.	Select only if legacy 3V design compatibility is required and QPI/XIP performance is not needed.
S25FL116K0XMFI011	1.8V operation, 16M-bit, supports Octal DTR mode (up to 80 MHz x8), includes built-in ECC and sector protection lockbits.	Higher pin count (16-pin SOIC), larger footprint; ECC adds overhead but improves reliability in radiation-prone environments.	Prefer for safety-critical applications needing error correction, but avoid if board space or pin count is constrained.

Compared with MX25L1606EM1I-12G and S25FL116K0XMFI011, the W25Q16FWUUIQ TR uniquely balances 1.8V compatibility, QPI-enabled low-latency XIP, compact USON packaging, and JEDEC/SFDP interoperability - making it optimal for new 1.8V embedded designs prioritizing boot speed, footprint, and driver portability.

Availability

W25Q16FWUUIQ TR is available at Aetrix Electronics and suitable for IoT edge node firmware storage, industrial PLC boot memory, and automotive infotainment UI assets requiring stable component supply, long-lifecycle assurance, and RoHS-compliant manufacturing.

Supply support for W25Q16FWUUIQ TR 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 automotive, industrial, and consumer markets since 1987.

The W25Q series was designed specifically for embedded systems demanding high-speed, low-voltage, and space-efficient code storage with robust security and seamless XIP capability - directly addressing limitations of legacy parallel and standard SPI flash.

FAQ

What is the maximum clock frequency supported by W25Q16FWUUIQ TR in Quad SPI mode?

The W25Q16FWUUIQ TR supports up to 104 MHz clock frequency in Quad SPI mode, delivering an effective data rate of 416 MB/s using Fast Read Quad I/O (EBh) instructions. This is confirmed in Section 9.6 of the Winbond datasheet Revision J, with timing validated under 1.65–1.95 V supply and –40°C to +85°C conditions. The W25Q16FWUUIQ TR achieves this while maintaining setup/hold margins for reliable operation in high-noise industrial environments.

Does W25Q16FWUUIQ TR support execute-in-place (XIP) functionality?

Yes, the W25Q16FWUUIQ TR supports true XIP via Continuous Read Mode with ≤8-clock instruction overhead and configurable 8/16/32/64-byte wrap lengths. When paired with a QSPI-capable MCU (e.g., STM32L4, NXP i.MX RT), the W25Q16FWUUIQ TR enables direct code execution without RAM loading - reducing boot time and memory footprint. This is explicitly documented in Section 1 and Figure 3 of the datasheet.

How is Quad SPI mode enabled on W25Q16FWUUIQ TR?

Quad SPI mode on the W25Q16FWUUIQ TR is enabled by setting the non-volatile Quad Enable (QE) bit in Status Register-2 using the Write Status Register-2 (31h) instruction. Once QE=1, the /WP and /HOLD pins become IO2 and IO3 respectively. This configuration persists across power cycles and is required before issuing Quad SPI commands like Fast Read Quad I/O (EBh). The W25Q16FWUUIQ TR datasheet confirms QE is non-volatile and factory-defaults to 0.

What package type does W25Q16FWUUIQ TR use, and is it RoHS-compliant?

W25Q16FWUUIQ TR uses an 8-pad USON 2x3-mm package (Package Code UX) with exposed thermal pad, as specified in Section 10.5 of the Winbond datasheet. It is fully RoHS-compliant and lead-free, with moisture sensitivity level (MSL) 3 per J-STD-020. The W25Q16FWUUIQ TR's USON footprint reduces PCB area by ~60% versus SOIC8 while maintaining thermal performance via the exposed pad.

Does W25Q16FWUUIQ TR include hardware write protection beyond software status bits?

Yes, the W25Q16FWUUIQ TR provides dual-layer write protection: hardware pins (/WP and /HOLD) and software-configurable status register bits (BP2–BP0, TB, SEC, CMP). The /WP pin, when asserted low and QE=0, prevents status register writes regardless of software state - offering fail-safe protection against accidental firmware corruption. This hardware lock is independent of the W25Q16FWUUIQ TR's internal register settings and remains active during power transitions.

W25Q16FWUUIQ TR Specifications

Product attributes: Attribute value

Manufacturer:: Winbond Electronics Corporation

Series:: SpiFlash®

Package/Case:: 8-UFDFN Exposed Pad

Packaging:: Tape & Reel (TR)

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-USON (4x3)

W25Q16FWUUIQ TR FAQ

1.How can I place an order for W25Q16FWUUIQ TR through Aetrix?

Please submit a Request for Quotation (RFQ) for W25Q16FWUUIQ TR 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 W25Q16FWUUIQ TR reliable?

The price and inventory of W25Q16FWUUIQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16FWUUIQ TR is usually 5 days.

3.What payment methods are accepted for W25Q16FWUUIQ TR?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16FWUUIQ TR transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for W25Q16FWUUIQ TR?

W25Q16FWUUIQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your W25Q16FWUUIQ TR 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 W25Q16FWUUIQ TR?

For technical support, including W25Q16FWUUIQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16FWUUIQ TR requirements.

6.How does Aetrix verify that W25Q16FWUUIQ TR is sourced from the original manufacturer or authorized distributors?

All W25Q16FWUUIQ TR 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 W25Q16FWUUIQ TR meets industry standards.

7.What is the process for return or replacement of W25Q16FWUUIQ TR?

All W25Q16FWUUIQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16FWUUIQ TR, 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 W25Q16FWUUIQ TR part is unused and in its original packaging.

Return procedure for W25Q16FWUUIQ TR:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-09 Counterfeit Electronic Components: How to Detect, Authenticate, and Test Suspect Parts

Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …

2026-09-08 Obsolete Electronic Components: How to Source and Evaluate Replacements

A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.

2026-09-07 TTL vs CMOS Logic Levels: 74HC and 74HCT Compatibility Explained

TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.

2026-09-04 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-02 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…