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Winbond Electronics Corporation W25Q16FWSVIQ TR
- Part No.:
- W25Q16FWSVIQ TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
W25Q16FWSVIQ TR.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8VSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,255
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Product details
Overview
W25Q16FWSVIQ 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 W25Q16FWSVIQ TR datasheet, W25Q16FWSVIQ TR pinout, W25Q16FWSVIQ TR application, or W25Q16FWSVIQ TR equivalent, this page delivers verified electrical specs (104MHz max SPI clock, 1.65–1.95V VCC), interface modes (QPI entry via 38h, Quad I/O enabled by QE bit), package mapping (SOIC-8 208-mil, code SS), and real-world design implications including /HOLD and /WP functionality loss in Quad mode.
Technical Context
The W25Q16FWSVIQ TR implements a quad-I/O-capable SPI flash architecture with non-volatile Quad Enable (QE) bit in Status Register-2 controlling IO2 (/WP) and IO3 (/HOLD) reassignment. Its block diagram includes a 2MB memory array, status/configuration registers (SR1–SR3), SFDP register, and three 256-byte security registers with OTP locks.
It supports four mutually exclusive operational modes: Standard SPI (DI/DO), Dual SPI (IO0/IO1), Quad SPI (IO0–IO3), and QPI (2-clock instruction fetch). Mode switching requires explicit commands (38h/FFh), and hardware reset (/RESET) is available only when QE=0 on 8-pin packages - confirming functional dependency between configuration bits and pin behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2 MB), enabling firmware image storage for mid-size microcontrollers without external RAM buffering |
| Supply Voltage | 1.65–1.95 V - compatible with 1.8V logic domains; no level-shifting required in low-power IoT nodes |
| SPI Clock Max | 104 MHz - enables 416 MB/s effective throughput in Quad I/O mode using EBh fast read command |
| Erase Granularity | 4 KB sectors (512 total), 32 KB blocks (32 total), 64 KB blocks (16 total) - supports fine-grained OTA update partitioning |
| Endurance & Retention | 100,000 program-erase cycles per sector; >20 years data retention at +25°C - suitable for field-upgradable industrial controllers |
| Interface Modes | Standard/Dual/Quad SPI + QPI - QPI reduces instruction overhead to 2 clocks vs. 8 in SPI, critical for deterministic XIP latency |
| Security Features | 64-bit unique ID, JEDEC ID (9Fh), SFDP register (5Ah), 3×256B security registers with OTP locks - meets basic secure boot root-of-trust requirements |
Pinout & Package
W25Q16FWSVIQ TR is packaged in 8-pin SOIC 208-mil (package code SS), with pin 1 marked by notch or dot. All pins are CMOS-compatible and support 1.8V signaling.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; must transition high→low after power-up before first instruction; high-Z DO when deasserted |
| 2 DO (IO1) | Data Output / Bidirectional I/O | Unidirectional output in Standard SPI; becomes IO1 in Dual/Quad/QPI; used for status/data reads on falling CLK edge |
| 3 /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware write lock for status register when QE=0; repurposed as IO2 in Quad/QPI mode - function lost if QE set |
| 4 GND | Ground Reference | Primary return path; decoupling capacitor (0.1 µF) required within 5 mm of VCC/GND pins per layout guidelines |
| 5 DI (IO0) | Data Input / Bidirectional I/O | Unidirectional input in Standard SPI; becomes IO0 in Dual/Quad/QPI; carries instructions/addresses on rising CLK edge |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference; supports Mode 0 and Mode 3; max 104 MHz; requires monotonic rise/fall per AC specs |
| 7 /HOLD or /RESET (IO3) | Hold Input / Reset Input / Bidirectional I/O | HOLD active-low pause when QE=0; RESET available only when QE=0 on 8-pin packages; becomes IO3 in Quad/QPI - dual-function pin with mode-dependent behavior |
| 8 VCC | Power Supply | 1.65–1.95 V supply; typical active current 4 mA, power-down current <1 µA - enables ultra-low-power sleep states |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | Enables true XIP with ≤8-clock instruction overhead per 24-bit address access - eliminates software wait-state insertion |
| Quad Peripheral Interface (QPI) | Reduces instruction fetch time from 8 to 2 clocks using all four I/O lines - cuts SPI protocol latency by 75% in boot-time-critical applications |
| Erase/Program Suspend & Resume | Allows background erase/interrupt servicing without data corruption - essential for real-time systems requiring deterministic response to events |
| Volatile & Non-Volatile Protection Bits | BP2–BP0, TB, SEC, CMP, SRP0/SRP1 allow hierarchical locking (sector to full array) with both power-cycle-persistent and temporary settings |
| JEDEC SFDP Support | Read SFDP register (5Ah) returns vendor-defined parameters (timing, voltage, erase sizes) - enables automatic driver initialization without hard-coded constants |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Image |
|---|---|
|
Use Scenario: Storing firmware binaries and configuration tables for programmable logic controllers operating in harsh environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Non-volatile code storage with XIP capability; serves as primary boot source for ARM Cortex-M7 MCU during cold start. Use Value: 4KB sector granularity enables atomic firmware patching; 100K endurance supports 10+ years of field updates without wear leveling. |
Use Scenario: Holding boot loader and safety-critical perception stack images in automotive camera ECU with ASIL-B compliance requirements. IC Role / Device Role / Timing Role: Secure boot ROM replacement; delivers deterministic read latency (<25 ns tCHQV) for time-sensitive initialization sequences. Use Value: 64-bit unique ID and SFDP register enable cryptographic signature verification and auto-negotiated timing parameters - reducing qualification effort. |
| IoT Edge Node Parameter Log | Medical Device Calibration Data |
|
Use Scenario: Recording sensor calibration offsets, device serial numbers, and usage logs in battery-powered wireless sensors. IC Role / Device Role / Timing Role: Low-power parameter store; leverages <1 µA power-down current and software reset (66h+99h) for energy-efficient wake-up cycles. Use Value: Individual sector lock (36h/39h) prevents accidental overwrites of calibrated values while allowing dynamic log expansion in unlocked sectors. |
Use Scenario: Archiving factory-calibrated transducer coefficients and regulatory audit trails in portable ultrasound and infusion pumps. IC Role / Device Role / Timing Role: Tamper-resistant data vault; uses three 256-byte security registers with OTP locks to seal calibration metadata. Use Value: Hardware write protection (/WP pin + SRP bits) enforces immutable calibration records - satisfies FDA 21 CFR Part 11 electronic record integrity requirements. |
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-8 208-mil; supports DTR mode but lacks QPI | Requires level-shifting in 1.8V systems; no QPI mode limits XIP efficiency in bandwidth-constrained designs | Select only if existing 3V infrastructure prohibits voltage rail redesign and QPI is unused |
| AT25SF161-SSHD-B | 1.7–2.0V supply; 16M-bit; SOIC-8 208-mil; supports Octal DTR but no QPI; different SFDP structure | Higher max clock (133 MHz) but incompatible QPI/SFDP register map - driver porting effort required | Prefer when migrating from Atmel ecosystem; verify bootloader compatibility with SFDP parsing logic |
Compared with W25Q16FWSVIQ TR, MX25L1606EM2I-12G demands higher voltage and forfeits QPI's 75% instruction latency reduction, while AT25SF161-SSHD-B offers faster clocks but introduces SFDP and command-set incompatibility - making W25Q16FWSVIQ TR optimal for new 1.8V XIP designs needing minimal driver changes.
Availability
W25Q16FWSVIQ TR is available at Aetrix Electronics and suitable for industrial control, automotive infotainment, and medical diagnostics applications requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for W25Q16FWSVIQ 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 since 1987.
The W25Q series targets embedded systems requiring high-speed, low-voltage, secure serial flash - designed specifically for XIP, firmware storage, and parameter logging in resource-constrained devices.
FAQ
What is the supply voltage range for W25Q16FWSVIQ TR?
The W25Q16FWSVIQ TR operates strictly within 1.65 V to 1.95 V. Operation outside this range may cause data corruption or premature wear. The device draws only 4 mA during active read/write and less than 1 µA in power-down mode - making it ideal for battery-backed or energy-harvesting applications where W25Q16FWSVIQ TR is the sole non-volatile storage element.
Does W25Q16FWSVIQ TR support Quad Peripheral Interface (QPI) mode?
Yes, W25Q16FWSVIQ TR supports QPI mode via the "Enter QPI (38h)" instruction, but only after setting the non-volatile Quad Enable (QE) bit in Status Register-2. Once enabled, all four I/O pins (IO0–IO3) participate in 2-clock instruction fetches - reducing protocol overhead significantly compared to standard SPI. QPI mode disables /WP and /HOLD functions, as those pins become IO2 and IO3.
How many program-erase cycles does W25Q16FWSVIQ TR guarantee?
W25Q16FWSVIQ TR guarantees a minimum of 100,000 program-erase cycles per sector, with data retention exceeding 20 years at +25°C. This endurance rating applies uniformly across all 512 sectors - confirmed in Section 9.6 of the official datasheet - ensuring reliable field updates for W25Q16FWSVIQ TR in firmware-over-the-air (FOTA) deployments.
Can W25Q16FWSVIQ TR be used for execute-in-place (XIP) operation?
Yes, W25Q16FWSVIQ TR supports true XIP via Continuous Read Mode and Quad I/O or QPI interfaces. With Fast Read Quad I/O (EBh), it achieves up to 416 MB/s effective throughput and ≤8-clock address setup - enabling direct CPU instruction fetch without RAM buffering. This capability is validated in application notes AN201 and AN205 for W25Q16FWSVIQ TR.
What package type does W25Q16FWSVIQ TR use?
W25Q16FWSVIQ TR uses the 8-pin SOIC 208-mil package (package code SS), with standard pinout matching Figure 1a in the datasheet. This package is RoHS-compliant, halogen-free, and qualified for industrial temperature range (-40°C to +85°C), making W25Q16FWSVIQ TR suitable for high-reliability PCB assemblies requiring manual or automated optical inspection.
W25Q16FWSVIQ TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.154", 3.90mm 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-VSOP
W25Q16FWSVIQ TR FAQ
1.How can I place an order for W25Q16FWSVIQ TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16FWSVIQ 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 W25Q16FWSVIQ TR reliable?
The price and inventory of W25Q16FWSVIQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16FWSVIQ TR is usually 5 days.
3.What payment methods are accepted for W25Q16FWSVIQ TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16FWSVIQ TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16FWSVIQ TR?
W25Q16FWSVIQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16FWSVIQ 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 W25Q16FWSVIQ TR?
For technical support, including W25Q16FWSVIQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16FWSVIQ TR requirements.
6.How does Aetrix verify that W25Q16FWSVIQ TR is sourced from the original manufacturer or authorized distributors?
All W25Q16FWSVIQ 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 W25Q16FWSVIQ TR meets industry standards.
7.What is the process for return or replacement of W25Q16FWSVIQ TR?
All W25Q16FWSVIQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16FWSVIQ 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 W25Q16FWSVIQ TR part is unused and in its original packaging.
Return procedure for W25Q16FWSVIQ TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q16FWSVIQ TR Tags
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M24C02-WMN6TP
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AT24C02C-XHM-T
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AT21CS01-STUM10-T
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M24C02-FMC6TG
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AT24CS02-SSHM-T
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93LC46BT-I/OT
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AT24C04C-SSHM-T
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