My Inquiry
My Account
Winbond Electronics Corporation W25Q16FWSSIQ TR
- Part No.:
- W25Q16FWSSIQ TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q16FWSSIQ TR.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,963
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
W25Q16FWSSIQ TR 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 W25Q16FWSSIQ TR datasheet, W25Q16FWSSIQ TR pinout, W25Q16FWSSIQ TR application, or W25Q16FWSSIQ TR equivalent, key selection factors include 104MHz SPI clock support, quad I/O mode enablement via QE bit, hardware /WP and /HOLD pins (active-low), 1.65–1.95V supply range, and JEDEC-compliant device ID and SFDP register access.
Technical Context
The W25Q16FWSSIQ TR implements a flexible SPI-compatible interface with mode-selectable operation: Standard SPI (DI/DO), Dual SPI (IO0/IO1), Quad SPI (IO0–IO3), and QPI (2-clock instruction fetch). Its architecture supports true execute-in-place (XIP) via Continuous Read Mode with ≤8-clock address overhead and wrap lengths of 8/16/32/64 bytes.
Internal control relies on three status registers with volatile/non-volatile configuration bits - including Quad Enable (QE), Block Protect (BP2–BP0), Top/Bottom protect (TB), Security Register Lock (LB[3:1]), and Output Driver Strength (DRV1/DRV0) - enabling fine-grained memory protection, suspend/resume during erase/program, and configurable I/O drive strength.
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 direct integration into 1.8V logic domains without level shifting |
| SPI Clock Frequency | Up to 104 MHz - delivers 50 MB/s continuous read throughput in Quad I/O mode |
| 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 +85°C |
| Security Features | 64-bit unique ID, three 256-byte OTP-lockable security registers, SFDP register for discoverable parameters |
| Operating Temperature | –40°C to +85°C - qualified for industrial-grade embedded applications |
Pinout & Package
W25Q16FWSSIQ TR is supplied in an 8-pin SOIC 208-mil package (package code SS), with lead-free, RoHS-compliant construction and surface-mount compatibility.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; high-impedance DO and standby current when deasserted |
| 2 DO (IO1) | Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; bidirectional IO1 in Dual/Quad SPI and QPI modes |
| 3 /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware write lock for status register when QE=0; becomes IO2 in Quad SPI/QPI when QE=1 |
| 4 GND | Ground Reference | Primary return path for VCC and all I/O signals; requires low-impedance PCB connection |
| 5 DI (IO0) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; bidirectional IO0 in Dual/Quad SPI and QPI modes |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference for all SPI/QPI operations; supports Mode 0 and Mode 3 |
| 7 /HOLD or /RESET (IO3) | Hold/Reset Input / Bidirectional I/O | HOLD function active when QE=0; becomes IO3 in Quad SPI/QPI; /RESET available only if configured via SR |
| 8 VCC | Power Supply | 1.65–1.95 V core supply; decoupling capacitor required within 10 mm of pin |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead to 2 clocks per command vs. 8 in SPI - critical for low-latency XIP boot sequences |
| Erase/Program Suspend & Resume | Allows interruption of long erase/program cycles to service higher-priority tasks, then resume from exact point |
| Individual Sector/Block Lock | Enables per-sector hardware locking via 36h/39h instructions - prevents accidental overwrite of critical firmware partitions |
| Volatile & Non-Volatile Status Control | Status Register-2 bits (QE, TB, BP2–BP0) persist across power cycles unless explicitly cleared - ensures boot-time configuration stability |
| Continuous Read with Wrap | Supports 8/16/32/64-byte burst wraps - eliminates address increment overhead for streaming reads in audio/video buffers |
Applications
| Industrial HMI Firmware Storage | IoT Edge Device Boot Code |
|---|---|
Use Scenario: Storing GUI assets, configuration profiles, and firmware update images in panel-mounted HMIs with limited PCB area and no parallel bus. IC Role / Device Role / Timing Role: Primary non-volatile code and data storage device interfaced via Quad SPI to ARM Cortex-M7 MCU at 80 MHz clock rate. Use Value: 4KB sector granularity enables atomic updates of individual UI language packs without erasing full application image. |
Use Scenario: Hosting secure bootloader and signed application firmware in battery-powered sensor nodes requiring over-the-air (OTA) updates. IC Role / Device Role / Timing Role: Trusted firmware repository accessed via QPI mode for sub-100 µs instruction fetch latency during cold boot. Use Value: 64-bit unique ID and OTP-locked security registers provide hardware-rooted device identity and update credential storage. |
| Automotive ADAS Camera Module | Medical Diagnostic Instrument Calibration Data |
Use Scenario: Storing lens calibration tables, ISP firmware patches, and runtime configuration in compact automotive camera modules operating at –40°C to +85°C. IC Role / Device Role / Timing Role: High-reliability parameter storage interfaced via Dual SPI to MIPI-CSI2 bridge IC with real-time interrupt response. Use Value: 100K endurance and >20-year data retention ensure calibration integrity over full vehicle lifecycle without refresh. |
Use Scenario: Retaining factory-calibrated sensor coefficients, user-defined test protocols, and audit logs in portable ultrasound and ECG devices. IC Role / Device Role / Timing Role: Secure, tamper-resistant data vault accessed via Standard SPI with /WP pin hardwired to ground for permanent write lock. Use Value: Hardware-based top/bottom array protection (TB bit) isolates calibration data from application firmware partitions. |
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 |
|---|---|---|---|
| MX25L1606EM2I-12G | 3V supply (2.7–3.6V); same 16M-bit density, SOIC-8 package; lacks QPI mode and security registers | Requires level-shifting for 1.8V systems; no hardware-based security register locking or unique ID | Select when legacy 3V design compatibility is required and security features are not needed. |
| S25FL116K0XMFI041 | 1.8V operation; 16M-bit; includes SFDP and 4KB sectors; supports Octal DTR (not supported by W25Q16FWSSIQ TR) | Higher bandwidth potential via Octal mode but requires controller support; larger footprint (8-pin WSON vs SOIC) | Choose for future-proofing where Octal DTR readiness matters, accepting larger layout impact. |
Compared with MX25L1606EM2I-12G and S25FL116K0XMFI041, W25Q16FWSSIQ TR uniquely balances 1.8V operation, QPI acceleration, integrated security registers, and SOIC-208 packaging - making it optimal for cost-sensitive, space-constrained industrial and medical designs needing robust firmware integrity.
Availability
W25Q16FWSSIQ TR is available at Aetrix Electronics and suitable for industrial HMI, IoT edge node boot, automotive camera module, medical diagnostic instrument, and embedded firmware storage applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant sourcing.
Supply support for W25Q16FWSSIQ 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 DRAM, mobile DRAM, and serial flash memory solutions for consumer, industrial, and automotive markets.
The W25Q series targets embedded systems requiring high-speed, low-voltage, secure serial flash - designed specifically for XIP code execution, firmware update resilience, and parameter storage in resource-constrained environments.
FAQ
What is the maximum SPI clock frequency supported by the W25Q16FWSSIQ TR?
The W25Q16FWSSIQ TR supports up to 104 MHz for Standard/Dual/Quad SPI operations. At this frequency, Quad I/O achieves an effective throughput of 416 Mbps (104 MHz × 4), and Fast Read Quad I/O (EBh) delivers up to 50 MB/s continuous data transfer - verified per AC Electrical Characteristics Table 9.6 in the official datasheet revision J.
Does the W25Q16FWSSIQ TR support execute-in-place (XIP) operation?
Yes, the W25Q16FWSSIQ TR supports true XIP via Continuous Read Mode with wrap lengths of 8/16/32/64 bytes and ≤8-clock instruction overhead for address setup. Combined with QPI mode (2-clock instruction fetch), it enables deterministic low-latency code execution directly from flash - confirmed in Section 1 General Descriptions and Figure 3 of the datasheet.
How is Quad SPI mode enabled on the W25Q16FWSSIQ TR?
Quad SPI mode is enabled by setting the non-volatile Quad Enable (QE) bit in Status Register-2 using Write Status Register-2 (31h) instruction. When QE = 1, pins /WP and /HOLD become IO2 and IO3 respectively. This configuration persists across power cycles and is required before issuing Quad SPI commands like 6Bh or EBh - detailed in Sections 4.2, 6.1.3, and 7.1.10.
What package type does W25Q16FWSSIQ TR use, and what is its package code?
W25Q16FWSSIQ TR uses an 8-pin SOIC 208-mil package with gull-wing leads, designated by package code "SS" per Winbond's Ordering Information table (Section 10.2). It is RoHS-compliant, halogen-free, and rated for industrial temperature range (–40°C to +85°C).
Can the W25Q16FWSSIQ TR be used with a 3.3V microcontroller SPI interface?
No - the W25Q16FWSSIQ TR operates exclusively at 1.65–1.95 V and is not 3.3V-tolerant. Direct connection to a 3.3V MCU SPI port will damage the device. Level translation (e.g., TXS0108E or discrete MOSFET translators) is mandatory for interoperability, as specified in Absolute Maximum Ratings (Section 9.1) and DC Electrical Characteristics (Section 9.4).
W25Q16FWSSIQ TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm Width)
- 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-SOIC
W25Q16FWSSIQ TR FAQ
1.How can I place an order for W25Q16FWSSIQ TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16FWSSIQ 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 W25Q16FWSSIQ TR reliable?
The price and inventory of W25Q16FWSSIQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16FWSSIQ TR is usually 5 days.
3.What payment methods are accepted for W25Q16FWSSIQ TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16FWSSIQ TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16FWSSIQ TR?
W25Q16FWSSIQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16FWSSIQ 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 W25Q16FWSSIQ TR?
For technical support, including W25Q16FWSSIQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16FWSSIQ TR requirements.
6.How does Aetrix verify that W25Q16FWSSIQ TR is sourced from the original manufacturer or authorized distributors?
All W25Q16FWSSIQ 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 W25Q16FWSSIQ TR meets industry standards.
7.What is the process for return or replacement of W25Q16FWSSIQ TR?
All W25Q16FWSSIQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16FWSSIQ 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 W25Q16FWSSIQ TR part is unused and in its original packaging.
Return procedure for W25Q16FWSSIQ TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q16FWSSIQ TR Tags
-
M24C02-WMN6TP
STMicroelectronics
-
AT24C02C-XHM-T
Microchip Technology
-
AT21CS01-STUM10-T
Microchip Technology
-
AT24C02C-SSHM-T
Microchip Technology
-
24LC01BT-I/OT
Microchip Technology
-
M24C02-FMC6TG
STMicroelectronics
-
AT24CS02-SSHM-T
Microchip Technology
-
93LC46BT-I/OT
Microchip Technology
-
AT24C04C-SSHM-T
Microchip Technology
-
24LC01BT-I/SN
Microchip Technology
-
24AA02UIDT-I/OT
Microchip Technology
-
AT24C08C-STUM-T
Microchip Technology
Tech Hub
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, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
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.
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.
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…
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…
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…
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 …
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…
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…
