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Winbond Electronics Corporation W25Q16CVSSJP TR
- Part No.:
- W25Q16CVSSJP TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q16CVSSJP TR.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,509
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Product details
Overview
W25Q16CVSSJP 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 erase 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 W25Q16CVSSJP TR datasheet, W25Q16CVSSJP TR pinout, W25Q16CVSSJP TR application, or W25Q16CVSSJP TR equivalent, key selection criteria include Quad Enable (QE) bit configuration, 8-pin SOIC 208-mil package mapping, 2.7–3.6 V supply compatibility, JEDEC ID read support (9Fh), and continuous read mode timing for execute-in-place (XIP) implementation.
Technical Context
The W25Q16CVSSJP TR implements a SPI command-set architecture with three operational modes: Standard SPI (DI/DO), Dual SPI (IO0/IO1), and Quad SPI (IO0–IO3), where Quad mode requires non-volatile QE bit (Status Register-2, bit 1) to be set. It uses a 256-byte page programming buffer and supports sector (4 KB), block (32 KB/64 KB), and chip erase with suspend/resume capability.
Its internal organization comprises 8,192 pages across 512 sectors and 32 blocks, with dedicated security registers (3 × 256 bytes), SFDP register for discoverable parameters, and 64-bit unique serial number. The device operates in Mode 0 or Mode 3 SPI clock polarity/phasing and includes volatile/non-volatile status register bits for BP, TB, SEC, CMP, SRP, and SUS control.
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 Max | 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 blocks - supports fine-grained firmware partitioning |
| Write Endurance | 100,000 program/erase cycles per sector - suitable for field-updatable bootloaders |
| 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 |
| Power Consumption | 4 mA active current, <1 µA power-down - critical for low-power IoT node designs |
Pinout & Package
W25Q16CVSSJP 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. All pins support standard SPI; /WP and /HOLD become IO2/IO3 in Quad mode when QE=1.
| 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) | Serial data output / bidirectional I/O | Outputs data in Standard/Dual SPI; becomes bidirectional in Dual/Quad modes - requires pull-up for tri-state safety |
| /WP / IO2 (Pin 3) | Hardware write protect / bidirectional I/O | Active-low lock for Status Register; repurposed as IO2 in Quad mode when QE=1 - disables hardware WP |
| GND (Pin 4) | Ground reference | Primary return path for VCC and all I/O signals - must be low-inductance connection for stable SPI timing |
| DI / IO0 (Pin 5) | Serial data input / bidirectional I/O | Accepts instructions/addresses/data on rising CLK edge; becomes bidirectional in Dual/Quad modes |
| CLK (Pin 6) | Serial clock input | Drives all SPI timing; supports Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1) |
| /HOLD / IO3 (Pin 7) | Operation pause input / bidirectional I/O | Halts ongoing read/write while /CS remains low; repurposed as IO3 in Quad mode - disables HOLD function |
| VCC (Pin 8) | Power supply | 2.7–3.6 V single supply - decoupling capacitor required within 10 mm of pin for noise immunity |
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 |
| Continuous Read Mode | As few as 8 clocks overhead to address memory - reduces instruction latency for true XIP execution |
| 4 KB uniform sector architecture | Allows independent erasure of boot code, config, and application sections - avoids full-chip erase during updates |
| 64-bit unique serial number | Read via 4Bh instruction - enables device-level traceability and secure firmware binding |
| Security registers with OTP locks | Three 256-byte registers protected by one-time-programmable bits - stores cryptographic keys or calibration data |
Applications
| Boot Code Storage | Firmware Update Partition |
|---|---|
Use Scenario: Storing primary bootloader and initial firmware image for ARM Cortex-M or RISC-V microcontrollers. IC Role / Device Role / Timing Role: Non-volatile code storage accessed at power-on reset via SPI XIP or shadow-load sequence. Use Value: 4 KB sector granularity allows safe overwrite of application section without affecting bootloader integrity. | Use Scenario: Dedicated flash region for over-the-air (OTA) firmware patches in connected industrial gateways. IC Role / Device Role / Timing Role: Field-updatable storage with erase-suspend capability to maintain system responsiveness during writes. Use Value: 100,000-cycle endurance and 20-year retention ensure reliable multi-year OTA deployment. |
| Secure Configuration Storage | Execute-in-Place (XIP) Memory |
Use Scenario: Holding encrypted device identity, calibration coefficients, and access credentials in medical or automotive ECUs. IC Role / Device Role / Timing Role: Tamper-resistant storage using OTP-locked security registers and hardware write protection. Use Value: 64-bit unique ID and SFDP register enable authenticated boot and runtime parameter validation. | Use Scenario: Direct code execution from flash in resource-constrained edge AI accelerators without RAM copy. IC Role / Device Role / Timing Role: High-throughput Quad I/O memory mapped via memory controller with continuous read mode enabled. Use Value: 104 MHz Quad SPI clock yields 416 MB/s effective bandwidth - exceeds legacy parallel NOR performance. |
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 |
|---|---|---|---|
| MX25L1606E/MX25L1633F | Same density, 104 MHz max clock, but lacks Quad Enable bit in Status Register-2; uses different instruction set for QE activation | Requires firmware adaptation for Quad mode initialization; no native SFDP register support | Prefer W25Q16CVSSJP TR when SFDP-based auto-configuration or seamless Quad I/O migration is required |
| S25FL116K | 16 M-bit, 85 MHz max clock, supports Quad SPI via different status register bit (CR1[1]); includes built-in ECC | Lower bandwidth ceiling; ECC adds overhead but improves reliability in high-radiation environments | Choose S25FL116K only if system-level ECC validation is mandated and 19% speed reduction is acceptable |
Compared with MX25L1606E and S25FL116K, the W25Q16CVSSJP TR delivers higher Quad SPI throughput (416 MB/s), standardized SFDP discovery, and unified QE bit control - making it optimal for modern XIP and OTA architectures requiring deterministic initialization and bandwidth headroom.
Availability
W25Q16CVSSJP TR is available at Aetrix Electronics and suitable for boot code storage, firmware update partitions, secure configuration storage, and execute-in-place (XIP) memory applications requiring stable component supply across industrial, automotive, and IoT product lifecycles.
Supply support for W25Q16CVSSJP 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 NOR/NAND flash, RAM, and mobile DRAM.
The W25Q series targets high-performance embedded systems requiring fast, flexible, and secure serial flash - designed specifically for code execution, firmware updates, and parameter storage in space-constrained MCU platforms.
FAQ
What is the package type and pin count of the W25Q16CVSSJP TR?
The W25Q16CVSSJP TR uses an 8-pin SOIC 208-mil package (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), and pin 8 = VCC. This matches the mechanical and thermal specifications defined in Winbond's datasheet Section 9.3.
Does the W25Q16CVSSJP TR support Quad SPI operation out of the box?
No - Quad SPI operation requires the non-volatile Quad Enable (QE) bit in Status Register-2 (bit 1) to be set via Write Status Register (01h) instruction. Until QE=1, /WP and /HOLD remain functional as hardware protection pins; after QE=1, they become IO2 and IO3. The W25Q16CVSSJP TR defaults to Standard SPI mode at power-up.
How does the W25Q16CVSSJP TR handle power-down and wake-up sequences?
The W25Q16CVSSJP TR enters ultra-low-power mode (<1 µA) upon receiving Power-down (B9h) instruction; it wakes up automatically on next /CS low transition. During wake-up, internal circuitry stabilizes before accepting commands - no external delay is required, but /CS must remain high for ≥3 µs before first instruction after wake-up per datasheet Section 8.3.
Can the W25Q16CVSSJP TR be used for secure firmware storage with tamper resistance?
Yes - the W25Q16CVSSJP TR includes three 256-byte security registers with one-time-programmable (OTP) lock bits, hardware write protection via /WP pin, and status register protection (SRP0/SRP1). These features allow cryptographic keys, device IDs, or calibration data to be stored with irreversible write-lock capability - confirmed in datasheet Sections 2 and 7.1.9.
What is the minimum instruction overhead for random reads in Continuous Read Mode on the W25Q16CVSSJP TR?
In Continuous Read Mode, the W25Q16CVSSJP TR requires as few as 8 clock cycles to address memory after instruction issuance - enabling efficient sequential access and true execute-in-place (XIP) behavior. This is achieved using Fast Read Quad I/O (EBh) or Word Read Quad I/O (E7h) instructions, as specified in datasheet Section 7.2.14 and 7.2.16.
W25Q16CVSSJP TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.209", 5.30mm 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q16CVSSJP TR FAQ
1.How can I place an order for W25Q16CVSSJP TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16CVSSJP 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 W25Q16CVSSJP TR reliable?
The price and inventory of W25Q16CVSSJP TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16CVSSJP TR is usually 5 days.
3.What payment methods are accepted for W25Q16CVSSJP TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16CVSSJP TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16CVSSJP TR?
W25Q16CVSSJP TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16CVSSJP 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 W25Q16CVSSJP TR?
For technical support, including W25Q16CVSSJP TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16CVSSJP TR requirements.
6.How does Aetrix verify that W25Q16CVSSJP TR is sourced from the original manufacturer or authorized distributors?
All W25Q16CVSSJP 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 W25Q16CVSSJP TR meets industry standards.
7.What is the process for return or replacement of W25Q16CVSSJP TR?
All W25Q16CVSSJP TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16CVSSJP 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 W25Q16CVSSJP TR part is unused and in its original packaging.
Return procedure for W25Q16CVSSJP TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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