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Winbond Electronics Corporation W25Q16CVSFIG TR
- Part No.:
- W25Q16CVSFIG TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 16-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
W25Q16CVSFIG TR.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,046
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Product details
Overview
W25Q16CVSFIG TR from Winbond is a 16 M-bit (2 MB) serial NOR flash memory IC supporting Standard, Dual, and Quad SPI interfaces with 104 MHz clock capability, 4 KB uniform sector architecture, and hardware write protection via /WP and /HOLD pins - deployed in embedded boot code storage, firmware update partitions, and XIP-capable microcontroller systems.
For engineers reviewing the W25Q16CVSFIG TR datasheet, W25Q16CVSFIG TR pinout, W25Q16CVSFIG TR application, or W25Q16CVSFIG TR equivalent, key selection considerations include Quad Enable (QE) bit configuration for IO2/IO3 remapping, 4KB sector erase granularity for parameter storage, continuous read mode timing (8-clock address overhead), and VCC range (2.7–3.6 V) compatibility with 3.3 V system rails.
Technical Context
The W25Q16CVSFIG TR implements a SPI command-set architecture with three operational modes: Standard SPI (DI/DO unidirectional), Dual SPI (IO0/IO1 bidirectional), and Quad SPI (IO0–IO3 bidirectional, enabled by QE=1 in Status Register-2). It features a 256-byte page buffer, 512 erasable 4 KB sectors, and 32 erasable 64 KB blocks.
Its functional block includes dedicated high-voltage generators for erase/program, dual status registers (SR1/SR2) with volatile/non-volatile bits, SFDP register for discoverable parameters, and three 256-byte security registers with OTP locks. Erase/program suspend/resume and 64-bit unique ID support field-upgrade integrity and secure boot verification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), organized as 8,192 × 256-byte pages |
| SPI Clock Frequency | Up to 104 MHz - enables 416 MB/s effective throughput in Quad I/O mode |
| Erase Granularity | Uniform 4 KB sectors (512 total), plus 32 KB and 64 KB block erase options |
| Write Cycle Endurance | ≥100,000 program/erase cycles per sector - supports frequent firmware updates |
| Data Retention | ≥20 years at +25°C - ensures long-term reliability in industrial deployments |
| Supply Voltage | 2.7 V to 3.6 V - compatible with standard 3.3 V logic and LDO-regulated rails |
| Active Current | 4 mA typical at 104 MHz - enables low-power boot loading in battery-backed systems |
| Power-down Current | 1 µA typical - minimizes standby leakage in always-on edge nodes |
Pinout & Package
W25Q16CVSFIG TR is packaged in an 8-pin SOIC 208-mil (package code SS), with pin 1 = /CS, pin 2 = DO (IO1), pin 3 = /WP (IO2), pin 4 = GND, pin 5 = DI (IO0), pin 6 = CLK, pin 7 = /HOLD (IO3), pin 8 = VCC. Pin functions adapt dynamically: /WP and /HOLD become IO2/IO3 only when Quad Enable (QE) bit is set in Status Register-2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS (Pin 1) | Chip Select Input | Active-low enable: places DO in high-impedance state when deasserted; required high-to-low transition after power-up before instruction acceptance |
| DO / IO1 (Pin 2) | Data Output / Quad I/O Line 1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad modes - carries read data or instruction responses |
| /WP / IO2 (Pin 3) | Hardware Write Protect / Quad I/O Line 2 | Active-low lock for Status Register writes; repurposed as IO2 only when QE=1 - disables hardware WP during Quad operation |
| GND (Pin 4) | Ground Reference | Primary return path for VCC and all I/O signals; must be low-impedance and decoupled near device |
| DI / IO0 (Pin 5) | Data Input / Quad I/O Line 0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad modes - carries instructions, addresses, and write data |
| CLK (Pin 6) | Serial Clock Input | Edge-triggered timing reference for all SPI transfers; supports Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1) |
| /HOLD / IO3 (Pin 7) | Hold Input / Quad I/O Line 3 | Active-low pause signal for ongoing SPI transactions; repurposed as IO3 only when QE=1 - suspends bus activity without deselecting device |
| VCC (Pin 8) | Power Supply | Single 2.7–3.6 V supply; requires local 0.1 µF ceramic decoupling capacitor between VCC and GND |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI Interface with QE Bit Control | Enables 4-line bidirectional data transfer (IO0–IO3) only after non-volatile QE=1 setting - prevents accidental mode change during power cycling |
| Continuous Read Mode with Wrap | Reduces instruction overhead to 8 clocks for 24-bit address setup and supports 8/16/32/64-byte wrap - enables true execute-in-place (XIP) from SPI without external RAM buffering |
| Flexible Hardware + Software Write Protection | Combines /WP pin control with BP2–BP0, TB, SEC, CMP, and SRP bits to protect any 4 KB sector or full array - supports secure bootloader partitioning |
| 64-Bit Unique Serial Number | Factory-programmed per-device identifier accessible via Read Unique ID (4Bh) - enables device-level traceability and cryptographic binding in IoT firmware |
| Security Registers with OTP Locks | Three 256-byte registers protected by one-time-programmable (OTP) locks - stores keys, certificates, or calibration data immune to field reprogramming |
| Erase/Program Suspend & Resume | Allows pausing active erase or program operations to service higher-priority interrupts - maintains deterministic latency in real-time systems |
Applications
| Boot Code Storage | Firmware Update Partition |
|---|---|
|
Use Scenario: Storing primary bootloader and initial application firmware in microcontroller-based edge gateways requiring cold-start execution. IC Role / Device Role / Timing Role: Non-volatile boot memory mapped via SPI XIP interface; delivers instruction fetches at up to 416 MB/s in Quad I/O mode. Use Value: Eliminates need for external RAM copy during boot - reduces BOM count and startup time by enabling direct execution from flash. |
Use Scenario: Isolating field-upgradable firmware images in industrial PLCs where runtime integrity and rollback safety are critical. IC Role / Device Role / Timing Role: Dedicated update partition with 4 KB sector granularity - allows atomic image swap using sector-level erase before programming. Use Value: Enables safe A/B firmware switching with <100 ms erase latency per sector and verified write cycles ≥100,000. |
| Secure Key Storage | Parameter Configuration Memory |
|
Use Scenario: Holding cryptographic keys and device identity credentials in medical sensor hubs subject to HIPAA-compliant data residency requirements. IC Role / Device Role / Timing Role: Tamper-resistant storage using OTP-locked security registers - accessed only via authenticated SPI commands. Use Value: Prevents key extraction via physical probing or firmware dump - meets IEC 62443-3-3 SL2 confidentiality controls. |
Use Scenario: Retaining calibrated sensor offsets, network credentials, and user preferences across power cycles in smart home thermostats. IC Role / Device Role / Timing Role: Parameter bank implemented as protected 4 KB sectors with hardware /WP and software BP bits. Use Value: Guarantees parameter persistence for >20 years while allowing field updates via controlled erase/write sequences. |
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 | Same density (16 M-bit), 3.3 V supply, but max SPI clock 80 MHz; no Quad I/O support - uses standard/Dual SPI only | Lacks QE bit and IO2/IO3 remapping; cannot achieve 416 MB/s throughput or XIP optimization of W25Q16CVSFIG TR | Select when Quad SPI complexity is unnecessary and cost sensitivity outweighs performance needs. |
| S25FL116K0XMFI011 | 16 M-bit, 3.0 V min supply, supports Quad SPI with QER bit; includes built-in ECC and sector lockdown not present in W25Q16CVSFIG TR | Higher reliability features suit automotive ASIL-B contexts; larger TFBGA package may impact layout density | Choose for mission-critical systems requiring error correction and enhanced lock-down - accept added cost and footprint. |
Compared with MX25L1606EM1I-12G and S25FL116K0XMFI011, the W25Q16CVSFIG TR delivers optimal balance of Quad SPI performance (104 MHz clock, 416 MB/s), 4 KB sector flexibility, and compact SOIC-208 packaging - making it ideal for cost-constrained, space-limited embedded designs needing fast XIP and field-upgradable firmware.
Availability
W25Q16CVSFIG TR is available at Aetrix Electronics and suitable for boot code storage, firmware update partitions, secure key storage, and parameter configuration memory requiring stable component supply across industrial, medical, and consumer electronics programs.
Supply support for W25Q16CVSFIG 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 manufacturer specializing in specialty memory solutions, including SPI NOR flash, PSRAM, and mobile DRAM - serving industrial, automotive, and communications markets since 1987.
The W25Q series was designed for high-performance, low-voltage embedded systems requiring reliable code storage, fast XIP execution, and robust security features - targeting microcontroller-based IoT endpoints and edge controllers.
FAQ
What is the maximum SPI clock frequency supported by the W25Q16CVSFIG TR?
The W25Q16CVSFIG TR supports SPI clock frequencies up to 104 MHz in Standard, Dual, and Quad SPI modes. At this rate, Quad I/O achieves an effective throughput of 416 MB/s (104 MHz × 4 lines), enabling rapid code shadowing and execute-in-place operation without external RAM buffering. This specification is validated across the full operating temperature range (−40°C to +85°C) and supply voltage (2.7–3.6 V).
How does the Quad Enable (QE) bit affect pin functionality on the W25Q16CVSFIG TR?
The Quad Enable (QE) bit resides in Status Register-2 and must be set to 1 (non-volatile) to activate Quad SPI mode. When QE=1, the /WP pin (Pin 3) becomes IO2 and /HOLD pin (Pin 7) becomes IO3 - disabling their hardware protection functions. The W25Q16CVSFIG TR retains Standard and Dual SPI compatibility regardless of QE state, but Quad operation is strictly conditional on this bit being programmed.
Can the W25Q16CVSFIG TR be used for execute-in-place (XIP) applications?
Yes, the W25Q16CVSFIG TR supports true XIP via its Continuous Read Mode, which reduces instruction overhead to just 8 clock cycles for 24-bit address setup and supports 8/16/32/64-byte wrap. Combined with Quad I/O throughput up to 416 MB/s, this allows microcontrollers to fetch and execute code directly from flash - eliminating boot-time RAM copy and reducing system latency in real-time embedded applications.
What write protection mechanisms does the W25Q16CVSFIG TR provide?
The W25Q16CVSFIG TR offers layered write protection: hardware-level via the /WP pin (active-low, disables Status Register writes), and software-level via Block Protect (BP2–BP0), Top/Bottom (TB), Sector Protect (SEC), Complement Protect (CMP), and Status Register Protect (SRP0/SRP1) bits. These can be combined to protect any 4 KB sector or the entire array - essential for safeguarding bootloader code and calibration data.
Is the W25Q16CVSFIG TR pin-compatible with other members of the W25Q family?
The W25Q16CVSFIG TR shares identical pinout and electrical characteristics with other 8-pin SOIC variants in the W25Q family (e.g., W25Q80, W25Q32), but density and timing parameters differ. Its SOIC-208 package (code SS) is mechanically and electrically compatible with W25Q80DVSSIG and W25Q32DVSSIG - enabling scalable design reuse across 8/16/32 M-bit requirements without PCB redesign.
W25Q16CVSFIG TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 16-SOIC (0.295", 7.50mm 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
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 50µs, 3ms
- Access Time:
- -
- Voltage - Supply:
- 2.7V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
W25Q16CVSFIG TR FAQ
1.How can I place an order for W25Q16CVSFIG TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16CVSFIG 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 W25Q16CVSFIG TR reliable?
The price and inventory of W25Q16CVSFIG TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16CVSFIG TR is usually 5 days.
3.What payment methods are accepted for W25Q16CVSFIG TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16CVSFIG TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16CVSFIG TR?
W25Q16CVSFIG TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16CVSFIG 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 W25Q16CVSFIG TR?
For technical support, including W25Q16CVSFIG TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16CVSFIG TR requirements.
6.How does Aetrix verify that W25Q16CVSFIG TR is sourced from the original manufacturer or authorized distributors?
All W25Q16CVSFIG 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 W25Q16CVSFIG TR meets industry standards.
7.What is the process for return or replacement of W25Q16CVSFIG TR?
All W25Q16CVSFIG TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16CVSFIG 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 W25Q16CVSFIG TR part is unused and in its original packaging.
Return procedure for W25Q16CVSFIG TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q16CVSFIG TR Tags
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