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Winbond Electronics Corporation W25Q16CVSNJP
- Part No.:
- W25Q16CVSNJP
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
W25Q16CVSNJP.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,158
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Product details
Overview
W25Q16CVSNJP 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 erase architecture, and single 2.7–3.6 V supply - used for code storage, XIP execution, and firmware parameter retention in microcontroller-based embedded systems.
For engineers reviewing the W25Q16CVSNJP datasheet, W25Q16CVSNJP pinout, W25Q16CVSNJP application, or W25Q16CVSNJP equivalent, key selection considerations include Quad SPI enable (QE bit), 4 KB sector granularity, hardware write protection via /WP and /HOLD pins, and compatibility with SPI Mode 0/3 timing requirements.
Technical Context
The W25Q16CVSNJP implements a SPI command-set architecture with dedicated status registers (SR1/SR2), including non-volatile Quad Enable (QE) bit required for IO2/IO3 functionality, and supports instruction-level suspend/resume for erase/program operations. It uses internal high-voltage generators for programming and erasing without external VPP.
Its memory array is organized into 8,192 × 256-byte pages, 512 × 4 KB sectors, and 32 × 64 KB blocks, enabling flexible partitioning for boot code, application firmware, and configuration data. Continuous Read Mode reduces instruction overhead to as few as 8 clocks per 24-bit address access.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), organized as 8,192 pages of 256 bytes each |
| 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 Endurance | 100,000 program/erase cycles per sector - suitable for firmware update partitions |
| 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 3.3 V logic domains without level shifting |
| Active Current | 4 mA typical at 104 MHz - low power consumption during active read/write |
| Power-down Current | 1 µA typical - enables ultra-low standby power in battery-backed systems |
Pinout & Package
W25Q16CVSNJP 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/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS (Pin 1) | Chip Select input | Active-low enable signal - places device in high-impedance state when deasserted; required to transition high→low before new instruction acceptance |
| DO / IO1 (Pin 2) | Serial data output / bidirectional I/O | Outputs data in Standard/Dual SPI; functions as IO1 in Dual/Quad modes - supports Fast Read Dual Output (3Bh) and Fast Read Quad Output (6Bh) |
| /WP / IO2 (Pin 3) | Hardware write protect / bidirectional I/O | Active-low hardware lock for status register; repurposed as IO2 when QE=1 - disables write protection during Quad SPI operation |
| GND (Pin 4) | Ground reference | Primary return path for VCC and all I/O signals - must be low-impedance connection to avoid timing skew or noise coupling |
| DI / IO0 (Pin 5) | Serial data input / bidirectional I/O | Accepts instructions/addresses/data in Standard SPI; becomes IO0 in Dual/Quad modes - used in all Fast Read Quad I/O (EBh) and Word Read Quad I/O (E7h) sequences |
| CLK (Pin 6) | Serial clock input | Edge-triggered timing reference - supports SPI Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1); max 104 MHz frequency |
| /HOLD / IO3 (Pin 7) | Hold input / bidirectional I/O | Pauses ongoing SPI transaction when asserted low; repurposed as IO3 when QE=1 - allows bus sharing with other SPI peripherals |
| VCC (Pin 8) | Power supply | Single 2.7–3.6 V supply - powers core logic, charge pumps, and I/O buffers; requires local 0.1 µF decoupling |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI interface with QE bit | Enables 4-line data transfer (IO0–IO3) after non-volatile QE=1 setting - doubles bandwidth vs Dual SPI and quadruples vs Standard SPI |
| Continuous Read Mode | Reduces instruction overhead to 8 clocks per 24-bit address - enables true execute-in-place (XIP) from flash without RAM copy |
| 4 KB uniform sector architecture | Allows independent erasure of smallest 4 KB unit - ideal for storing calibrated sensor offsets, network credentials, or bootloader parameters |
| Hardware + software write protection | Combines /WP pin control with BP0–BP2, TB, SEC, and SRP bits - protects boot sectors from accidental overwrite during field updates |
| 64-bit unique serial number | Factory-programmed per-device ID accessible via 4Bh instruction - supports secure device authentication and anti-cloning in IoT endpoints |
| Security registers with OTP locks | Three 256-byte security registers, each lockable via one-time-programmable bits - stores cryptographic keys or calibration secrets inaccessible to standard read commands |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Code |
|---|---|
|
Use Scenario: Storing firmware images and configuration tables in programmable logic controllers operating across -40°C to +85°C ambient. IC Role / Device Role / Timing Role: Non-volatile code storage and XIP execution source - directly executes boot loader and real-time control routines via Quad SPI interface. Use Value: 4 KB sector erase enables atomic firmware patching without disrupting operational code; 20-year data retention ensures lifetime reliability in unattended installations. |
Use Scenario: Holding boot ROM, OS kernel, and UI assets in head-unit systems requiring fast cold-start performance and secure firmware validation. IC Role / Device Role / Timing Role: Primary boot memory mapped via MCU's QSPI controller - delivers 416 MB/s burst reads to load critical code within <100 ms. Use Value: 64-bit unique ID enables hardware-rooted secure boot chain; SFDP register allows automatic timing parameter discovery for robust interoperability. |
| Medical Device Calibration Data | Smart Meter Firmware Update Partition |
|
Use Scenario: Retaining factory-calibrated sensor coefficients and regulatory compliance logs in portable diagnostic equipment with battery backup. IC Role / Device Role / Timing Role: Parameter storage with hardware write protection - /WP pin and BP bits prevent accidental overwrites during field recalibration. Use Value: 100,000 erase/program cycles support frequent calibration updates; 1 µA power-down current extends battery life during standby. |
Use Scenario: Hosting dual firmware images (active + candidate) and update metadata in utility meters deployed in remote locations. IC Role / Device Role / Timing Role: Field-upgradable code repository - uses sector erase to atomically swap firmware versions while preserving metering history in protected sectors. Use Value: Erase/program suspend/resume allows interruption of long erase cycles by higher-priority metering tasks - maintains real-time accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L1606EM2I-12G | Same density (16 M-bit), 3 V supply, SOIC-8 package; supports only Standard/Dual SPI (no Quad I/O or QE bit) | Lacks Quad SPI bandwidth and XIP optimization - suitable where cost sensitivity outweighs speed requirements | Select when system MCU lacks Quad SPI controller or design prioritizes lowest BOM cost over throughput |
| S25FL116K0XMFI041 | 16 M-bit, 3 V, SOIC-8; includes SFDP and 4 KB sectors but uses different status register layout and no 64-bit UID | Compatible for basic code storage but requires firmware adaptation for status register access and security features | Choose when migrating from Cypress portfolio or needing integrated die-temperature sensing (not present in W25Q16CVSNJP) |
Compared with MX25L1606EM2I-12G and S25FL116K0XMFI041, W25Q16CVSNJP delivers superior continuous-read throughput via Quad I/O and hardware-enforced security via OTP-locked registers - making it optimal for XIP-critical and tamper-resistant designs.
Availability
W25Q16CVSNJP is available at Aetrix Electronics and suitable for industrial automation, automotive infotainment, and medical diagnostics requiring stable component supply, long-lifecycle support, and guaranteed traceable sourcing.
Supply support for W25Q16CVSNJP 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 serial flash, mobile DRAM, and code storage devices for embedded and consumer applications.
The W25Q series targets high-performance, space-constrained systems needing reliable code execution and firmware update capability - designed specifically for microcontroller-based platforms with SPI/QSPI host interfaces.
FAQ
What is the package type and pin count of W25Q16CVSNJP?
W25Q16CVSNJP 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 SOIC-8 footprints and socket adapters. This package supports all SPI modes and provides direct access to hardware write protection and hold functions.
Does W25Q16CVSNJP support Quad SPI operation out of the box?
No - W25Q16CVSNJP requires the Quad Enable (QE) bit in Status Register-2 to be set to '1' to activate IO2 (/WP) and IO3 (/HOLD) for Quad SPI communication. This is a non-volatile setting performed via Write Status Register (01h) instruction. Until QE=1, /WP and /HOLD retain their hardware protection roles.
How does W25Q16CVSNJP handle power-down and wake-up sequencing?
W25Q16CVSNJP enters ultra-low-power mode (<1 µA) upon receiving Power-down (B9h) command; it wakes on any /CS low transition. The /CS pin must track VCC during power-up/power-down - a pull-up resistor is recommended to ensure proper initialization. No external reset signal is required.
Can W25Q16CVSNJP store and protect cryptographic keys?
Yes - W25Q16CVSNJP includes three 256-byte security registers, each protected by one-time-programmable (OTP) lock bits. Once locked, these registers are unreadable via standard instructions and immune to bulk erase - enabling secure storage of AES keys, device certificates, or calibration secrets.
What is the minimum instruction overhead for random access reads in W25Q16CVSNJP?
In Continuous Read Mode, W25Q16CVSNJP requires as few as 8 clock cycles to latch a 24-bit address - significantly lower than standard SPI flash requiring full instruction+address transmission each time. This enables efficient XIP execution and rapid parameter lookup without RAM buffering.
W25Q16CVSNJP 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
W25Q16CVSNJP FAQ
1.How can I place an order for W25Q16CVSNJP through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16CVSNJP 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 W25Q16CVSNJP reliable?
The price and inventory of W25Q16CVSNJP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16CVSNJP is usually 5 days.
3.What payment methods are accepted for W25Q16CVSNJP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16CVSNJP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16CVSNJP?
W25Q16CVSNJP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16CVSNJP 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 W25Q16CVSNJP?
For technical support, including W25Q16CVSNJP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16CVSNJP requirements.
6.How does Aetrix verify that W25Q16CVSNJP is sourced from the original manufacturer or authorized distributors?
All W25Q16CVSNJP 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 W25Q16CVSNJP meets industry standards.
7.What is the process for return or replacement of W25Q16CVSNJP?
All W25Q16CVSNJP units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16CVSNJP, 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 W25Q16CVSNJP part is unused and in its original packaging.
Return procedure for W25Q16CVSNJP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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