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Winbond Electronics Corporation W25Q16CVSSJG
- Part No.:
- W25Q16CVSSJG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q16CVSSJG.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,184
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Product details
Overview
W25Q16CVSSJG 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 XIP-capable continuous read mode - deployed for code storage and execution in microcontroller boot loaders, IoT firmware, and embedded HMI systems.
For engineers reviewing the W25Q16CVSSJG datasheet, W25Q16CVSSJG pinout, W25Q16CVSSJG application, or W25Q16CVSSJG equivalent, key selection criteria include Quad SPI enable (QE bit), 4 KB sector erase granularity, hardware write protection via /WP and /HOLD pins, and compatibility with JEDEC-standard SFDP and Unique ID registers.
Technical Context
The W25Q16CVSSJG implements a SPI command-set architecture with three operational modes: Standard (4-pin: CLK, /CS, DI, DO), Dual (6-pin: CLK, /CS, IO0, IO1, /WP, /HOLD), and Quad (8-pin: CLK, /CS, IO0–IO3). It uses a non-volatile Status Register-2 QE bit to reconfigure /WP and /HOLD as IO2/IO3, enabling true quad I/O data transfers at up to 416 MHz effective rate.
Internally, it features a 256-byte page buffer, 512 × 4 KB erasable sectors, 32 × 64 KB erasable blocks, and dedicated security registers with OTP locks. Erase/program suspend/resume functionality supports real-time interrupt handling during flash operations without data loss.
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 208 MB/s dual I/O and 416 MB/s quad I/O burst reads |
| Erase Granularity | Uniform 4 KB sectors (512 total), 32 KB blocks (32), and 64 KB blocks (32) |
| Write Endurance | 100,000 program/erase cycles per sector - supports frequent firmware updates |
| Data Retention | 20 years at +25°C - validated for long-life industrial and automotive control applications |
| Supply Voltage | 2.7 V to 3.6 V - compatible with 3.3 V logic systems without level-shifting |
| Power Consumption | 4 mA active current; <1 µA power-down - suitable for battery-backed and low-power IoT nodes |
Pinout & Package
W25Q16CVSSJG is supplied in an 8-pin SOIC 208-mil package (package code SS), with lead-free, RoHS-compliant construction and standard 1.27 mm pitch.
| Pin | Circuit Role | Design Meaning |
|---|---|---|
| 1 | /CS | Active-low chip select - controls device enable/disable and high-impedance output state |
| 2 | DO (IO1) | Bidirectional data line - used as output in Standard/Dual SPI; IO1 in Quad SPI |
| 3 | /WP (IO2) | Hardware write protect input - becomes IO2 when Quad Enable (QE) bit is set |
| 4 | GND | Ground reference - common return path for all signals and power |
| 5 | DI (IO0) | Bidirectional data line - used as input in Standard/Dual SPI; IO0 in Quad SPI |
| 6 | CLK | Serial clock input - synchronous timing source for all SPI transactions (Mode 0/3) |
| 7 | /HOLD (IO3) | Active-low hold input - pauses ongoing SPI operation; becomes IO3 when QE=1 |
| 8 | VCC | Primary power supply - must be stable between 2.7 V and 3.6 V for reliable operation |
Key Features
| Feature | Design Value |
|---|---|
| Quad SPI Enable (QE bit) | Non-volatile Status Register-2 bit that unlocks IO2/IO3 functionality - required for 4-line data transfers |
| Continuous Read Mode | As few as 8 clocks overhead per 24-bit address - enables efficient execute-in-place (XIP) for MCU boot code |
| 64-bit Unique Serial Number | Factory-programmed, read-only identifier - supports device authentication and secure firmware binding |
| JEDEC SFDP Register | Standardized, discoverable parameter table - allows automatic configuration by host bootloader without hard-coded timing |
| Erase/Program Suspend | Halts ongoing erase or program cycle on command - preserves state during critical interrupts or power events |
| Security Registers (3 × 256 B) | OTP-lockable zones for keys, certificates, or calibration data - isolated from main array with independent write control |
Applications
| Industrial PLC Firmware Storage | Automotive Infotainment Boot Memory |
|---|---|
Use Scenario: Storing firmware images and configuration parameters in programmable logic controllers operating in harsh temperature environments (-40°C to +85°C). IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP support - directly executes boot loader and real-time control routines. Use Value: 4 KB sector erase enables granular firmware patching without full reflash; 20-year retention ensures field longevity without recalibration. |
Use Scenario: Holding boot code, OS kernel, and UI assets in head unit ECUs where fast startup and secure update are mandatory. IC Role / Device Role / Timing Role: Quad SPI-configured boot memory - delivers >50 MB/s sustained read throughput for rapid GUI rendering and audio decode. Use Value: 64-bit unique ID and SFDP register enable secure OTA validation and auto-tuned timing across production variants. |
| IoT Edge Sensor Node Code Storage | Medical Device Configuration Memory |
Use Scenario: Hosting firmware and sensor calibration tables in battery-powered wireless sensors requiring ultra-low standby current. IC Role / Device Role / Timing Role: Low-power serial flash - enters <1 µA power-down state between BLE transmissions while retaining full memory contents. Use Value: Hardware /WP and /HOLD pins allow deterministic SPI bus arbitration in multi-peripheral designs without software overhead. |
Use Scenario: Storing FDA-compliant device settings, usage logs, and safety-critical calibration data in portable diagnostic equipment. IC Role / Device Role / Timing Role: Secure parameter storage - leverages OTP-locked security registers to prevent unauthorized modification of clinical thresholds. Use Value: 100,000-cycle endurance supports daily recalibration over 10+ years; JEDEC ID verification ensures supply chain authenticity. |
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), 3.3 V supply, but max SPI clock 80 MHz; no Quad I/O; lacks SFDP and Unique ID | Lower bandwidth limits XIP performance; no standardized parameter discovery - requires fixed timing in bootloader | Choose when cost sensitivity outweighs speed/security needs and legacy SPI-only host interface is used |
| S25FL116K0XMFI041 | 16 M-bit, 3.0 V min supply, supports Quad SPI and SFDP, but only 50,000 erase cycles and no OTP security registers | Insufficient endurance for daily firmware updates; missing hardware-level security for regulated medical use | Prefer for consumer-grade applications where field upgrade frequency is low and security requirements are minimal |
Compared with MX25L1606EM2I-12G and S25FL116K0XMFI041, W25Q16CVSSJG delivers higher bandwidth (104 MHz vs ≤80 MHz), guaranteed 100K-cycle endurance, and integrated security features - making it optimal for XIP-critical, update-intensive, and regulated embedded systems.
Availability
W25Q16CVSSJG is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive infotainment boot memory, and IoT edge sensor node code storage requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for W25Q16CVSSJG 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, PSRAM, and mobile DRAM for embedded and industrial markets.
The W25Q series was designed specifically for high-reliability, high-speed code storage in resource-constrained microcontroller systems - emphasizing Quad SPI performance, sector-level flexibility, and built-in security primitives.
FAQ
What is the package type and footprint of W25Q16CVSSJG?
W25Q16CVSSJG uses an 8-pin SOIC 208-mil package (package code SS) with 1.27 mm lead pitch and standard JEDEC MS-012AC outline. Its footprint matches industry-standard SOIC-8 footprints and is compatible with automated SMT assembly processes without special tooling.
Does W25Q16CVSSJG support execute-in-place (XIP) operation?
Yes, W25Q16CVSSJG supports true XIP via its Continuous Read Mode, which reduces instruction overhead to as few as 8 clock cycles per 24-bit address. When configured for Quad SPI with QE=1, it delivers up to 416 MHz effective throughput - sufficient for direct code execution in Cortex-M and RISC-V microcontrollers.
How is hardware write protection implemented on W25Q16CVSSJG?
W25Q16CVSSJG provides dual-layer hardware write protection: the /WP pin (pin 3) disables Status Register writes when asserted low, and the Status Register's BP2–BP0, TB, SEC, and SRP bits enable selective 4 KB sector or full-array protection. These features remain active even during power transitions.
What is the function of the /HOLD pin on W25Q16CVSSJG?
The /HOLD pin (pin 7) pauses active SPI operations when pulled low while /CS is active. It places DO in high-impedance state and ignores DI/CLK transitions - allowing safe bus sharing among multiple peripherals. In Quad SPI mode (QE=1), this pin functions as IO3 instead of /HOLD.
Is W25Q16CVSSJG compatible with JEDEC-standard identification protocols?
Yes, W25Q16CVSSJG fully supports JEDEC JESD216B SFDP (Serial Flash Discoverable Parameters) and returns valid Manufacturer ID (0xEF), Device ID (0x4015), and a factory-programmed 64-bit Unique ID via dedicated instructions (9Fh, 90h, 4Bh). This enables automatic host configuration without hardcoded timing tables.
W25Q16CVSSJG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm 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
W25Q16CVSSJG FAQ
1.How can I place an order for W25Q16CVSSJG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16CVSSJG 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 W25Q16CVSSJG reliable?
The price and inventory of W25Q16CVSSJG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16CVSSJG is usually 5 days.
3.What payment methods are accepted for W25Q16CVSSJG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16CVSSJG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16CVSSJG?
W25Q16CVSSJG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16CVSSJG 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 W25Q16CVSSJG?
For technical support, including W25Q16CVSSJG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16CVSSJG requirements.
6.How does Aetrix verify that W25Q16CVSSJG is sourced from the original manufacturer or authorized distributors?
All W25Q16CVSSJG 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 W25Q16CVSSJG meets industry standards.
7.What is the process for return or replacement of W25Q16CVSSJG?
All W25Q16CVSSJG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16CVSSJG, 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 W25Q16CVSSJG part is unused and in its original packaging.
Return procedure for W25Q16CVSSJG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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