My Inquiry
My Account
Winbond Electronics Corporation W25Q16DWSSIG TR
- Part No.:
- W25Q16DWSSIG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q16DWSSIG TR.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,884
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
W25Q16DWSSIG TR from Winbond is a 1.8V, 16M-bit (2MB) serial NOR flash memory IC supporting Standard/Dual/Quad SPI and QPI interfaces, organized into 8,192 × 256-byte pages with uniform 4KB sector erase capability, used for code storage, XIP execution, and firmware parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q16DWSSIG TR datasheet, W25Q16DWSSIG TR pinout, W25Q16DWSSIG TR application, or W25Q16DWSSIG TR equivalent, key selection considerations include 104MHz SPI clock support, Quad Enable (QE) bit dependency for IO2/IO3 functionality, 1.65–1.95V supply range, -40°C to +85°C operation, and hardware write protection via /WP and /HOLD pins.
Technical Context
The W25Q16DWSSIG TR implements a flexible SPI command architecture with mode-exclusive operation: Standard/Dual/Quad SPI and QPI are mutually exclusive, requiring explicit Enable QPI (38h) or Disable QPI (FFh) instructions. Its status register includes non-volatile Quad Enable (QE) bit in Status Register-2, which must be set to repurpose /WP and /HOLD as IO2 and IO3 for Quad SPI/QPI modes.
It supports multi-level erase granularity-4KB sectors, 32KB blocks, 64KB blocks, and full chip-with Erase/Program Suspend & Resume (75h/7Ah), and integrates four 256-byte security registers with OTP locks. The device uses internal high-voltage generators for programming/erasing and features JEDEC-compliant manufacturer/device ID (90h), 64-bit unique serial number (4Bh), and JEDEC ID (9Fh).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), enabling compact firmware storage without parallel bus footprint |
| Supply Voltage | 1.65 V to 1.95 V - compatible with low-power 1.8V system rails and reduces I/O level-shifting needs |
| Max SPI Clock | 104 MHz - delivers up to 416 MB/s effective throughput in Quad I/O mode using Fast Read Quad I/O (EBh) |
| Erase Granularity | Uniform 4KB sectors (512 total), 32KB blocks (64 total), 64KB blocks (32 total) - supports fine-grained firmware updates and parameter partitioning |
| Endurance & Retention | 100,000 program/erase cycles and 20-year data retention - suitable for field-upgradable embedded applications |
| Operating Temp | -40°C to +85°C - qualified for industrial-grade operation without derating |
| Security Features | 64-bit unique ID, four 256-byte security registers with OTP locks, and software/hardware write protection - enables secure boot and credential storage |
Pinout & Package
W25Q16DWSSIG TR is supplied in an 8-pin SOIC 208-mil package (package code SS), with gull-wing leads, 1.27 mm pitch, and RoHS-compliant matte tin finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable signal; places DO/IO pins in high-impedance state when high, required to transition high→low before instruction acceptance |
| 2 DO (IO1) | Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; bidirectional I/O1 in Dual/Quad SPI/QPI; used for read data and status feedback |
| 3 /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware write protect when active low; becomes IO2 in Quad SPI/QPI after QE=1 is set in Status Register-2 |
| 4 GND | Ground Reference | Primary return path for VCC and all I/O signals; requires low-impedance PCB connection to minimize noise coupling |
| 5 DI (IO0) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; bidirectional I/O0 in Dual/Quad SPI/QPI; carries instructions, addresses, and write data |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference for all SPI operations; supports Mode 0 and Mode 3; max 104 MHz frequency |
| 7 /HOLD (IO3) | Hold Input / Bidirectional I/O | Pauses ongoing read/write while /CS is low; becomes IO3 in Quad SPI/QPI after QE=1 is set |
| 8 VCC | Power Supply | 1.65–1.95 V core supply; decoupling capacitor (≥100 nF) required within 5 mm of pin for stable operation |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead from 8 clocks to 2 clocks per command, enabling faster XIP startup and deterministic latency in real-time systems |
| Continuous Read Mode | Supports 8/16/32/64-byte wrap with only 8 clocks for address setup - minimizes bus arbitration delay during sequential code fetch |
| Erase/Program Suspend & Resume | Allows background interrupt servicing during long erase/program cycles without data corruption or timeout failure |
| Flexible Hardware Write Protection | Combines /WP pin control with top/bottom sector locking (TB), complement protection (CMP), and block protect bits (BP2–BP0) for hierarchical firmware partitioning |
| Security Register Locking | Four 256-byte security registers with one-time-programmable (OTP) lock bits - prevents runtime modification of cryptographic keys or calibration data |
Applications
| Industrial HMI Firmware Storage | Automotive Telematics Boot Code |
|---|---|
|
Use Scenario: Storing GUI assets, configuration profiles, and localized language strings in a panel-mounted HMI controller with limited PCB area. IC Role / Device Role / Timing Role: Primary non-volatile code and data storage device interfaced via Quad SPI to an ARM Cortex-M7 MCU at 80 MHz clock rate. Use Value: 4KB sector erase enables over-the-air (OTA) updates of individual UI modules without erasing full firmware image, reducing update time and risk. |
Use Scenario: Hosting boot loader and secure boot certificate chain in a 4G LTE telematics control unit operating across automotive temperature ranges. IC Role / Device Role / Timing Role: Trusted firmware repository accessed via QPI mode by an AURIX TC3xx microcontroller during cold start sequence. Use Value: 64-bit unique ID and OTP-locked security registers provide hardware-rooted identity and immutable certificate storage for UDS-based secure boot validation. |
| Medical IoT Sensor Node Configuration | Smart Home Gateway OTA Storage |
|
Use Scenario: Retaining calibrated sensor offsets, patient-specific thresholds, and regulatory compliance logs in a battery-powered wearable ECG monitor. IC Role / Device Role / Timing Role: Low-voltage (1.8V) persistent storage for volatile MCU RAM backup and infrequent parameter writes. Use Value: 1 µA typical power-down current extends coin-cell battery life beyond 5 years while preserving critical calibration data. |
Use Scenario: Storing dual firmware images (active + standby) and delta patch metadata in a Wi-Fi 6 gateway supporting seamless OTA upgrades. IC Role / Device Role / Timing Role: Dual-image storage medium accessed via Fast Read Quad I/O (EBh) to minimize upgrade downtime. Use Value: 50 MB/s continuous read throughput ensures sub-second firmware validation and swap, meeting consumer UX expectations for zero-downtime updates. |
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 | Same density (16M-bit), 3V supply (2.7–3.6V), no QPI mode, lacks security registers and unique ID | Requires level-shifting for 1.8V systems; unsuitable for secure boot or device identity use cases | Select only if operating voltage is ≥2.7V and security features are unnecessary |
| S25FL116K0XMFI041 | 16M-bit, 1.8V supply, supports Octal DTR mode (up to 80 MHz DDR), includes SFDP and 4-byte addressing | Higher bandwidth potential but requires more complex initialization; lacks OTP security register locking | Prefer for future-proof designs needing scalable bandwidth, but verify bootloader compatibility with DTR and 4-byte addressing |
Compared with MX25L1606EM2I-12G and S25FL116K0XMFI041, the W25Q16DWSSIG TR uniquely balances 1.8V operation, QPI instruction efficiency, hardware write protection flexibility, and integrated security primitives - making it optimal for cost-sensitive, security-aware industrial and medical edge devices where pin count and voltage compatibility are constrained.
Availability
W25Q16DWSSIG TR is available at Aetrix Electronics and suitable for industrial HMI, automotive telematics, medical wearables, smart home gateways, and IoT sensor node designs requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for W25Q16DWSSIG 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 industrial, automotive, and consumer markets since 1987.
The W25Q series was designed specifically for embedded systems requiring high-speed, low-voltage, secure, and space-efficient code and data storage - emphasizing XIP performance, robustness in extended temperature environments, and hardware-assisted security.
FAQ
What is the supply voltage range supported by the W25Q16DWSSIG TR?
The W25Q16DWSSIG TR operates from 1.65 V to 1.95 V. This narrow 1.8V nominal range eliminates the need for external level shifters in 1.8V logic systems and ensures stable read/write/erase performance across the full industrial temperature range (-40°C to +85°C). Operation outside this range may cause undefined behavior or permanent damage to the W25Q16DWSSIG TR.
Does the W25Q16DWSSIG TR support execute-in-place (XIP) operation?
Yes, the W25Q16DWSSIG TR supports true XIP via Continuous Read Mode and Quad SPI/QPI interfaces. With as few as 8 clocks for address setup and up to 50 MB/s sustained read throughput, it enables direct code execution from flash by microcontrollers such as ARM Cortex-M or RISC-V cores without copying to RAM - reducing boot time and SRAM usage in the W25Q16DWSSIG TR deployment.
How is Quad SPI mode enabled on the W25Q16DWSSIG TR?
Quad SPI mode on the W25Q16DWSSIG TR requires two steps: first, setting the Quad Enable (QE) bit in Status Register-2 using Write Status Register (01h) instruction; second, issuing Quad SPI commands like Fast Read Quad I/O (EBh). When QE=1, the /WP and /HOLD pins become IO2 and IO3. The W25Q16DWSSIG TR does not auto-enable Quad mode - configuration is mandatory and persistent across power cycles.
What package type does the W25Q16DWSSIG TR use?
The W25Q16DWSSIG TR uses an 8-pin SOIC 208-mil package (package code SS), with gull-wing leads, 1.27 mm pitch, and Pb-free matte tin plating. This through-hole-compatible surface-mount package offers mechanical robustness, ease of rework, and compatibility with standard automated assembly processes - distinct from the W25Q16DWSSIG TR's 150-mil (SN) or WSON (ZP) variants.
Can the W25Q16DWSSIG TR be used in automotive applications?
The W25Q16DWSSIG TR is rated for -40°C to +85°C operation and meets industrial reliability standards (100,000 P/E cycles, 20-year retention), but it is not AEC-Q100 qualified. For automotive applications requiring qualification, Winbond offers the AEC-Q100 Grade 3 W25Q16JW variant. The W25Q16DWSSIG TR may be used in non-safety-critical automotive subsystems (e.g., infotainment UI storage) where qualification is not mandated.
W25Q16DWSSIG 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:
- Discontinued at Digi-Key
- 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:
- 40µs, 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
W25Q16DWSSIG TR FAQ
1.How can I place an order for W25Q16DWSSIG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16DWSSIG 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 W25Q16DWSSIG TR reliable?
The price and inventory of W25Q16DWSSIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16DWSSIG TR is usually 5 days.
3.What payment methods are accepted for W25Q16DWSSIG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16DWSSIG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16DWSSIG TR?
W25Q16DWSSIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16DWSSIG 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 W25Q16DWSSIG TR?
For technical support, including W25Q16DWSSIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16DWSSIG TR requirements.
6.How does Aetrix verify that W25Q16DWSSIG TR is sourced from the original manufacturer or authorized distributors?
All W25Q16DWSSIG 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 W25Q16DWSSIG TR meets industry standards.
7.What is the process for return or replacement of W25Q16DWSSIG TR?
All W25Q16DWSSIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16DWSSIG 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 W25Q16DWSSIG TR part is unused and in its original packaging.
Return procedure for W25Q16DWSSIG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q16DWSSIG 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…
