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Winbond Electronics Corporation W25Q16CVSNJG
- Part No.:
- W25Q16CVSNJG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
W25Q16CVSNJG.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,202
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Product details
Overview
W25Q16CVSNJG 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/software write protection. It enables execute-in-place (XIP) code execution and parameter storage in space-constrained embedded systems.
For engineers reviewing the W25Q16CVSNJG datasheet, W25Q16CVSNJG pinout, W25Q16CVSNJG application, or W25Q16CVSNJG equivalent, key selection considerations include Quad SPI enable (QE bit), /WP and /HOLD pin reassignment in Quad mode, 4 KB sector erase granularity, JEDEC ID compatibility, and 2.7–3.6 V single-supply operation.
Technical Context
The W25Q16CVSNJG implements a SPI command set compliant with Mode 0 and Mode 3 clock polarity/idle states, supports up to 104 MHz clock frequency, and delivers 52 MB/s continuous read throughput via Fast Read Quad I/O (EBh). Its internal architecture includes a 256-byte page buffer, 512 erasable 4 KB sectors, and 32 erasable 64 KB blocks.
Quad SPI operation requires non-volatile setting of the QE bit in Status Register-2, which repurposes /WP (IO2) and /HOLD (IO3); standard and dual SPI retain dedicated /WP and /HOLD functions. The device integrates three 256-byte security registers with OTP locks, SFDP register for discoverable parameters, and 64-bit unique serial number.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), organized as 8,192 × 256-byte programmable pages |
| Interface Support | Standard SPI (4-wire), Dual SPI (DI/DO as IO0/IO1), Quad SPI (IO0–IO3) with QE bit enabled |
| Max Clock Frequency | 104 MHz - enables 208 MHz dual-data-rate or 416 MHz quad-data-rate effective throughput |
| Erase Granularity | Uniform 4 KB sectors (512 total), 32 KB blocks (32 total), 64 KB blocks (32 total), full-chip erase |
| Write/Erase Endurance | 100,000 program/erase cycles per sector - supports frequent firmware or configuration updates |
| Data Retention | 20 years at +25°C - ensures long-term reliability in industrial and automotive control applications |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic domains without level shifting |
| Power Consumption | 4 mA active current (typ.), <1 µA power-down current (typ.) - suitable for battery-backed or low-power IoT nodes |
Pinout & Package
W25Q16CVSNJG is packaged in an 8-pin SOIC 208-mil (package code SS), with pins arranged in standard dual-inline configuration. Pin 1 is /CS; pins 2–3 are bidirectional data I/Os; pin 4 is GND; pin 5 is DI (IO0); pin 6 is CLK; pin 7 is /HOLD (IO3); pin 8 is VCC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS (Pin 1) | Chip Select Input | Active-low enable: high = high-impedance DO, low = active SPI communication and increased current draw |
| DO (IO1) (Pin 2) | Data Output / Bidirectional I/O | Standard SPI output only; Dual/Quad SPI becomes IO1 - used for read data and status in all modes |
| /WP (IO2) (Pin 3) | Write Protect Input / Bidirectional I/O | Hardware write lock for status register when QE=0; becomes IO2 in Quad mode (QE=1) |
| GND (Pin 4) | Ground Reference | Primary return path for VCC and all I/O signals - must be low-impedance connection |
| DI (IO0) (Pin 5) | Data Input / Bidirectional I/O | Standard SPI input only; Dual/Quad SPI becomes IO0 - carries instructions, addresses, and write data |
| CLK (Pin 6) | Serial Clock Input | Edge-triggered timing reference: rising edge for input, falling edge for output in all SPI modes |
| /HOLD (IO3) (Pin 7) | Hold Input / Bidirectional I/O | Pauses ongoing SPI transaction when low and /CS is active; becomes IO3 in Quad mode (QE=1) |
| VCC (Pin 8) | Power Supply | Single 2.7–3.6 V supply - powers core logic, charge pumps, and I/O buffers |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI Enable (QE bit) | Non-volatile Status Register-2 bit enabling IO2/IO3 functionality - required before Quad I/O instructions execute |
| Continuous Read Mode | As few as 8 clocks overhead to initiate read - enables true XIP with minimal instruction latency |
| Security Registers | Three 256-byte OTP-lockable registers - store cryptographic keys or calibration data with hardware-enforced write protection |
| SFDP Register | JEDEC JESD216-compliant flash parameter table - allows automatic driver configuration without hard-coded timing values |
| Erase/Program Suspend | 75h/7Ah commands pause/resume background operations - permits time-critical interrupt servicing during long erase cycles |
| Unique 64-bit Serial ID | Factory-programmed per-device identifier - supports secure boot, device authentication, and field firmware traceability |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
Use Scenario: Storing firmware images and configuration tables in programmable logic controllers operating in harsh temperature environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Non-volatile code storage with XIP support - executes boot loader and real-time control routines directly from flash. Use Value: 4 KB sector erase enables over-the-air firmware patching without disrupting operational memory regions. | Use Scenario: Holding boot code and UI assets for head-unit microcontrollers where fast startup and secure boot verification are required. IC Role / Device Role / Timing Role: Primary boot memory accessed via Quad SPI - delivers >50 MB/s read bandwidth to meet boot-time latency targets. Use Value: 64-bit unique ID and OTP security registers support cryptographic signature validation and anti-cloning measures. |
| IoT Edge Sensor Node Configuration | Medical Diagnostic Device Parameter Storage |
Use Scenario: Retaining calibrated sensor offsets, network credentials, and usage logs in battery-powered wireless sensors. IC Role / Device Role / Timing Role: Low-power parameter storage - leverages <1 µA power-down current and hardware write protection to prevent accidental corruption. Use Value: Hardware /WP pin and BP bits allow independent locking of configuration sectors while permitting firmware updates. | Use Scenario: Storing FDA-mandated calibration records, device serial history, and safety-critical diagnostic algorithms in portable imaging equipment. IC Role / Device Role / Timing Role: Certified data archive - uses OTP security registers and 20-year data retention to satisfy regulatory audit requirements. Use Value: SFDP register enables automatic driver adaptation across production batches with varying timing parameters. |
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 (16 M-bit), 104 MHz max clock, but uses different status register layout and lacks SFDP register | No auto-configurable timing via SFDP; requires manual driver tuning for timing margins | Prefer W25Q16CVSNJG when using HAL drivers that rely on SFDP discovery or require security register OTP locking |
| S25FL116K0XMFI041 | 16 M-bit, 85 MHz max clock, supports Quad SPI but no Octal Word Read; different pinout (SOIC 150-mil only) | Lower peak bandwidth (42.5 MB/s vs. 52 MB/s); no 64-bit unique ID | Choose W25Q16CVSNJG for higher throughput XIP or traceability-critical deployments requiring per-device serialization |
Compared with MX25L1606EM2I-12G and S25FL116K0XMFI041, the W25Q16CVSNJG provides superior configurability via SFDP, higher sustained read bandwidth, and stronger security features including OTP-locked registers and factory-unique identification - making it optimal for certified, upgradable, and traceable embedded systems.
Availability
W25Q16CVSNJG is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, and IoT edge sensor node configuration requiring stable component supply across extended product lifecycles.
Supply support for W25Q16CVSNJG 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, RAM, and mobile DRAM.
The W25Q series is designed for embedded systems requiring high-speed, reliable, and secure code and data storage - with emphasis on XIP capability, low-power operation, and robust write protection schemes.
FAQ
What is the package type and pin count of the W25Q16CVSNJG?
The W25Q16CVSNJG uses an 8-pin SOIC 208-mil package (package code SS). Its pinout includes /CS, DO (IO1), /WP (IO2), GND, DI (IO0), CLK, /HOLD (IO3), and VCC - fully compatible with standard SPI, Dual SPI, and Quad SPI protocols when the QE bit is set.
Does the W25Q16CVSNJG support execute-in-place (XIP) operation?
Yes, the W25Q16CVSNJG supports true XIP via its Continuous Read Mode, which requires as few as 8 clock cycles to initiate memory access. When paired with Fast Read Quad I/O (EBh) at 104 MHz, it delivers 52 MB/s throughput - sufficient for direct code execution in microcontrollers without external RAM buffering.
How does the Quad Enable (QE) bit affect pin functionality on the W25Q16CVSNJG?
The QE bit in Status Register-2 controls whether /WP and /HOLD function as hardware protection inputs (QE=0) or as IO2 and IO3 for Quad SPI (QE=1). Once set, QE is non-volatile and persists across power cycles - requiring explicit write to Status Register-2 to configure Quad mode before issuing Quad I/O instructions.
What write protection mechanisms does the W25Q16CVSNJG provide?
The W25Q16CVSNJG offers layered write protection: hardware-level via /WP pin (active-low), software-level via status register BP bits (BP2–BP0, TB, SEC), and OTP-level via security register locks. These can be combined to protect individual 4 KB sectors or the entire array - critical for safeguarding boot code and calibration data.
Is the W25Q16CVSNJG compatible with JEDEC-standard identification and parameter discovery?
Yes, the W25Q16CVSNJG supports JEDEC-standard Manufacturer/Device ID (90h/92h/94h), Unique ID (4Bh), and SFDP register (5Ah) per JESD216. This enables automated driver initialization, eliminating hardcoded timing values and improving interoperability across toolchains and silicon platforms.
W25Q16CVSNJG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q16CVSNJG FAQ
1.How can I place an order for W25Q16CVSNJG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16CVSNJG 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 W25Q16CVSNJG reliable?
The price and inventory of W25Q16CVSNJG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16CVSNJG is usually 5 days.
3.What payment methods are accepted for W25Q16CVSNJG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16CVSNJG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16CVSNJG?
W25Q16CVSNJG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16CVSNJG 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 W25Q16CVSNJG?
For technical support, including W25Q16CVSNJG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16CVSNJG requirements.
6.How does Aetrix verify that W25Q16CVSNJG is sourced from the original manufacturer or authorized distributors?
All W25Q16CVSNJG 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 W25Q16CVSNJG meets industry standards.
7.What is the process for return or replacement of W25Q16CVSNJG?
All W25Q16CVSNJG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16CVSNJG, 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 W25Q16CVSNJG part is unused and in its original packaging.
Return procedure for W25Q16CVSNJG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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