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Winbond Electronics Corporation W25Q16JWSNIM TR
- Part No.:
- W25Q16JWSNIM TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
W25Q16JWSNIM TR.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,672
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Product details
Overview
W25Q16JWSNIM TR from Winbond is a 1.8V, 16M-bit (2MB) serial NOR flash memory with Dual/Quad SPI interface, organized as 8192 × 256-byte pages, supporting uniform 4KB sector, 32KB block, and 64KB block erase, and rated for -40°C to +85°C industrial operation in 8-pin SOIC 150-mil (SN) package.
For engineers reviewing the W25Q16JWSNIM TR datasheet, W25Q16JWSNIM TR pinout, W25Q16JWSNIM TR application, or W25Q16JWSNIM TR equivalent, this device delivers 133MHz Quad I/O SPI performance (532MB/s effective throughput), hardware /WP and /HOLD control, JEDEC-compliant SFDP register, 64-bit unique ID, and three 256-byte security registers - critical for secure boot, firmware storage, and parameter retention in space-constrained embedded systems.
Technical Context
The W25Q16JWSNIM TR implements a standard SPI bus (Mode 0/3) with configurable Dual/Quad I/O modes enabled via non-volatile QE bit in Status Register-2; IO0–IO3 function as bidirectional data lines only when QE=1, repurposing /WP and /HOLD pins as IO2 and IO3 respectively.
It integrates volatile/non-volatile status register bits for flexible protection (BP2–BP0, TB, SEC, CMP, SRP/SRL), individual 64KB block and 4KB sector lock bits, Erase/Program Suspend & Resume, and output driver strength control (DRV1/DRV0), all accessible via dedicated SPI instructions including Fast Read Quad I/O (EBh) and Quad Input Page Program (32h).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), organized as 8192 × 256-byte programmable pages |
| Supply Voltage | 1.65V to 1.95V - enables direct integration into 1.8V logic domains without level shifting |
| Max Clock Frequency | 133 MHz Quad I/O SPI - supports 532 MB/s effective read throughput using Fast Read Quad I/O (EBh) |
| Erase Granularity | Uniform 4KB sectors (512 total), 32KB blocks (32 total), 64KB blocks (16 total), and full chip erase - enables fine-grained firmware partitioning |
| Data Retention | 20+ years at +85°C - ensures long-term reliability for industrial firmware and calibration data storage |
| Endurance | 100,000 program/erase cycles per sector - supports frequent OTA update logging and runtime parameter logging |
| Operating Temperature | -40°C to +85°C - qualified for industrial-grade embedded applications without derating |
Pinout & Package
W25Q16JWSNIM TR is supplied in 8-pin SOIC 150-mil (Package Code SN), with gull-wing leads, 1.27 mm pitch, and JEDEC MS-012AC footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; high-impedance DO during deselect; must track VCC at power-up/down to prevent spurious writes |
| 2 DO (IO1) | Data Output / I/O1 | Unidirectional output in Standard SPI; bidirectional I/O in Dual/Quad SPI; used for read data and status |
| 3 /WP (IO2) | Write Protect Input / I/O2 | Active-low hardware write protect for status register; becomes IO2 in Quad SPI mode when QE=1 |
| 4 GND | Ground Reference | Primary signal return path; decoupling capacitor must be placed adjacent to this pin |
| 5 DI (IO0) | Data Input / I/O0 | Unidirectional input in Standard SPI; bidirectional I/O in Dual/Quad SPI; carries instructions, addresses, and write data |
| 6 CLK | Serial Clock Input | Edge-triggered timing reference; supports Mode 0 (CPOL=0, CPHA=0) and Mode 3 (CPOL=1, CPHA=1) |
| 7 /HOLD (IO3) | Hold Input / I/O3 | Pauses ongoing SPI transfer when low; becomes IO3 in Quad SPI mode when QE=1; not available in Quad mode if held active |
| 8 VCC | Power Supply | 1.65–1.95V core supply; requires local 100nF ceramic decoupling between VCC and GND |
Key Features
| Feature | Design Value |
|---|---|
| Dual/Quad SPI Interface | Configurable via non-volatile QE bit; enables 2×–4× faster reads vs standard SPI - critical for XIP and fast code shadowing |
| Erase/Program Suspend & Resume | Allows background operations (e.g., logging) to pause flash erase/program - prevents system latency spikes during real-time tasks |
| Three 256-byte Security Registers | OTP-programmable via 42h/44h/48h instructions - stores cryptographic keys, device certificates, or calibration secrets with hardware lock-down |
| 64-bit Unique Serial Number | Factory-programmed, read-only identifier (4Bh instruction) - enables secure device authentication and anti-cloning in IoT deployments |
| JEDEC SFDP Register | Standardized, read-only parameter table (5Ah instruction) - allows automatic host controller configuration without hard-coded timing values |
Applications
| Firmware Storage | Secure Boot |
|---|---|
|
Use Scenario: Storing bootloader, application firmware, and configuration binaries in microcontroller-based edge nodes. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP-capable Quad SPI interface enabling direct execution from flash. Use Value: Eliminates external RAM loading delay; 133MHz Quad I/O supports >50MB/s sustained read for fast boot and OTA updates. |
Use Scenario: Verifying digital signatures of firmware images before execution in safety-critical industrial controllers. IC Role / Device Role / Timing Role: Secure key and certificate repository with OTP-locked security registers and unique ID binding. Use Value: Prevents unauthorized firmware injection; 64-bit UID ensures each device has cryptographically distinct identity. |
| Parameter & Calibration Storage | Industrial HMI Data Logging |
|
Use Scenario: Retaining sensor calibration coefficients, motor tuning parameters, and user preferences across power cycles. IC Role / Device Role / Timing Role: High-endurance, sector-protected non-volatile storage with individual block locking for field-updatable parameters. Use Value: 100K P/E cycles and 4KB sector granularity allow frequent small writes without wear leveling overhead. |
Use Scenario: Capturing operational logs (temperature, pressure, cycle counts) in factory automation HMIs with limited board space. IC Role / Device Role / Timing Role: Low-power, wide-temp serial flash interfaced to ARM Cortex-M host via Quad SPI. Use Value: <0.1µA power-down current extends battery life; -40°C to +85°C rating ensures reliability in uncontrolled cabinet environments. |
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 |
|---|---|---|---|
| MX25L1633FZUI-10G | 1.8V, 16Mb, 104MHz max Quad SPI clock; no /HOLD pin; 8-pin USON 2×3mm only | Lacks /HOLD functionality and SOIC option; smaller footprint but no pin-compatible drop-in replacement | Select when board space is constrained and /HOLD is unused; verify SFDP compatibility for auto-configuration |
| S25FL132K0XMFI010 | 1.8V, 16Mb, 80MHz max Quad SPI clock; includes on-die ECC; supports octal DTR mode | Lower max speed; adds error correction for extended data integrity; different instruction set (e.g., 44h vs 32h for quad program) | Prefer for mission-critical systems requiring ECC; requires firmware adaptation due to non-identical command map |
Compared with MX25L1633FZUI-10G and S25FL132K0XMFI010, the W25Q16JWSNIM TR offers higher Quad SPI bandwidth (133MHz vs 104/80MHz), native /HOLD support in SOIC, and broader industrial temperature compliance - making it optimal for high-speed, pin-compatible firmware storage where timing headroom and legacy interface continuity matter.
Availability
W25Q16JWSNIM TR is available at Aetrix Electronics and suitable for industrial control firmware storage, secure boot implementations, and embedded parameter retention requiring stable component supply, long-lifecycle support, and guaranteed traceability.
Supply support for W25Q16JWSNIM 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 company specializing in specialty memory solutions, including SPI NOR/NAND flash, RAM, and mobile DRAM, serving industrial, automotive, and consumer markets since 1987.
The W25Q16JW series is part of Winbond's high-performance SpiFlash family designed specifically for code execution (XIP), secure firmware storage, and robust parameter logging in resource-constrained industrial and IoT edge devices.
FAQ
What is the package type and lead count for W25Q16JWSNIM TR?
W25Q16JWSNIM TR uses an 8-pin SOIC 150-mil (Package Code SN) with gull-wing leads and 1.27 mm pitch. This package is fully compatible with JEDEC MS-012AC footprint standards and supports reflow soldering per J-STD-020. The "IM" suffix confirms industrial temperature grade (-40°C to +85°C), and "TR" denotes tape-and-reel packaging for automated assembly.
Does W25Q16JWSNIM TR support Quad SPI mode out of the box?
No - W25Q16JWSNIM TR requires the Quad Enable (QE) bit in Status Register-2 to be set (via Write Status Register-2 instruction 31h) to activate Quad SPI mode. Until QE=1, /WP and /HOLD remain functional as hardware control pins; after QE=1, they become IO2 and IO3. Factory default is QE=0, ensuring backward compatibility with standard SPI designs.
How many program/erase cycles does W25Q16JWSNIM TR guarantee?
W25Q16JWSNIM TR guarantees a minimum of 100,000 program/erase cycles per 4KB sector, validated across the full industrial temperature range (-40°C to +85°C). This endurance rating applies to all sectors and is specified under typical operating conditions (1.65–1.95V, tPROG ≤ 3ms, tERS ≤ 400ms), enabling reliable use in firmware update logging and runtime parameter storage.
Can W25Q16JWSNIM TR be used for secure key storage?
Yes - W25Q16JWSNIM TR includes three dedicated 256-byte Security Registers that support One-Time Programmable (OTP) locking via instruction 42h (Program), 44h (Erase), and 48h (Read). Once locked using LB1–LB3 bits, these registers become permanently read-only, providing tamper-resistant storage for cryptographic keys, device certificates, or calibration secrets.
What is the purpose of the /HOLD pin on W25Q16JWSNIM TR?
The /HOLD pin on W25Q16JWSNIM TR allows pausing an active SPI transaction without deselecting the device: when /HOLD is pulled low while /CS is low, DO goes high-impedance and DI/CLK are ignored, preserving internal state. This is especially useful in multi-device SPI buses or real-time systems needing deterministic interrupt response. In Quad SPI mode (QE=1), /HOLD becomes IO3 and loses hold functionality.
W25Q16JWSNIM TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 133 MHz
- Write Cycle Time - Word, Page:
- 3ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-SOIC
W25Q16JWSNIM TR FAQ
1.How can I place an order for W25Q16JWSNIM TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16JWSNIM 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 W25Q16JWSNIM TR reliable?
The price and inventory of W25Q16JWSNIM TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16JWSNIM TR is usually 5 days.
3.What payment methods are accepted for W25Q16JWSNIM TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16JWSNIM TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16JWSNIM TR?
W25Q16JWSNIM TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16JWSNIM 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 W25Q16JWSNIM TR?
For technical support, including W25Q16JWSNIM TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16JWSNIM TR requirements.
6.How does Aetrix verify that W25Q16JWSNIM TR is sourced from the original manufacturer or authorized distributors?
All W25Q16JWSNIM 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 W25Q16JWSNIM TR meets industry standards.
7.What is the process for return or replacement of W25Q16JWSNIM TR?
All W25Q16JWSNIM TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16JWSNIM 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 W25Q16JWSNIM TR part is unused and in its original packaging.
Return procedure for W25Q16JWSNIM TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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