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Winbond Electronics Corporation W25Q16JWBYIM
- Part No.:
- W25Q16JWBYIM
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-UFBGA, WLCSP
- Datasheet:
-
W25Q16JWBYIM.pdf
- Description:
- IC FLASH 16MBIT SPI/QUAD 8WLCSP
- Quantity:
- Payment:
- Shipping:
Inventory:4,396
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Product details
Overview
W25Q16JWBYIM from Winbond is a 1.8V, 16M-bit (2MB) serial NOR flash memory with Dual/Quad SPI interface, supporting up to 133MHz Quad I/O clocking for 66MB/s continuous read throughput. It features uniform 4KB sectors (512 total), 32KB/64KB blocks, and operates across –40°C to +105°C industrial-plus grade temperature range. Used for XIP code execution, firmware storage, and parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q16JWBYIM datasheet, W25Q16JWBYIM pinout, W25Q16JWBYIM application, or W25Q16JWBYIM equivalent, key selection criteria include Quad SPI enable (QE bit), /WP and /HOLD dual-function pin behavior in Quad mode, 1.65–1.95V supply compliance, 100K program-erase cycle endurance, and WLCSP-8 (BY) package compatibility with 2.0×2.5mm footprint.
Technical Context
The W25Q16JWBYIM implements a standard SPI bus with optional Dual/Quad I/O modes enabled via non-volatile QE bit in Status Register-2. In Quad mode, /WP and /HOLD pins become IO2 and IO3 respectively, requiring configuration before high-speed operation. Its architecture supports sector/block erase suspend/resume, individual block locking, and three 256-byte security registers.
It integrates JEDEC-standard manufacturer/device ID, SFDP register for discoverable parameters, and a unique 64-bit serial number. Write protection combines volatile/non-volatile status bits (BP2–BP0, TB, SEC, CMP), hardware /WP pin control, and OTP-lockable security registers - all configurable without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 16 M-bit (2,097,152 bytes), organized as 8192 × 256-byte pages |
| Supply Voltage | 1.65 V to 1.95 V - enables direct integration with 1.8V logic domains without level shifters |
| Quad SPI Clock Rate | Up to 133 MHz - delivers 532 Mbps effective bandwidth using 4-bit I/O per cycle |
| Endurance & Retention | 100,000 program/erase cycles minimum; >20 years data retention at 85°C |
| Erase Granularity | 4 KB sectors (512), 32 KB blocks (32), 64 KB blocks (16), and full chip erase |
| Operating Temperature | –40°C to +105°C - qualified for industrial-plus applications including automotive infotainment and motor control |
| Power-down Current | 0.1 µA typical - reduces system standby power in battery-backed or energy-harvested designs |
Pinout & Package
W25Q16JWBYIM uses an 8-ball WLCSP (Wafer-Level Chip Scale Package) with 0.4 mm pitch and 2.0 × 2.5 mm body size (Package Code BY). Pin functions are identical across SOIC/WSON/XSON/WLCSP variants per Winbond documentation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A2 | /CS | Active-low chip select - must transition high-to-low after power-up before first instruction |
| B2 | DO (IO1) | Data output in Standard/Dual SPI; bidirectional I/O1 in Dual/Quad mode |
| C2 | /WP (IO2) | Hardware write protect input (active low); becomes IO2 in Quad mode when QE=1 |
| D2 | DI (IO0) | Data input in Standard SPI; bidirectional I/O0 in Dual/Quad mode |
| C1 | CLK | Serial clock input - supports Mode 0 and Mode 3; timing-critical for 133MHz operation |
| B1 | /HOLD (IO3) | Hold input (active low); becomes IO3 in Quad mode when QE=1; not available during Quad operation |
| A1 | VCC | 1.65–1.95V core supply - requires local 100nF decoupling near ball |
| D1 | GND | Ground reference - shared return path for all I/O and core logic |
Key Features
| Feature | Design Value |
|---|---|
| Quad Enable (QE) bit | Non-volatile bit in Status Register-2 that reassigns /WP and /HOLD to IO2/IO3 - required for Quad I/O operation |
| Erase/Program Suspend | Allows pausing active erase/program operations to service time-critical reads - critical for real-time firmware updates |
| Individual Block Lock | 62 × 64KB blocks + 32 × 4KB top/bottom sectors each have dedicated lock bits - enables fine-grained field-upgrade partitioning |
| Security Registers | Three 256-byte OTP-capable registers - store cryptographic keys or calibration data with hardware-enforced write-once protection |
| Unique 64-bit ID | Factory-programmed per-device serial number - enables secure device authentication and anti-cloning in IoT nodes |
Applications
| Industrial PLC Firmware Storage | Automotive ADAS Boot Image |
|---|---|
|
Use Scenario: Storing boot firmware and runtime configuration in programmable logic controllers deployed in factory automation environments with wide ambient temperature swings. IC Role / Device Role / Timing Role: Non-volatile code storage with XIP support - executes directly from Quad SPI bus to reduce BOM cost and boot latency. Use Value: 105°C rating ensures reliability in uncooled control cabinets; 4KB sector erase enables incremental firmware patching without full reflash. |
Use Scenario: Holding boot images and sensor calibration data for radar/EPS ECUs where functional safety and tamper resistance are mandatory. IC Role / Device Role / Timing Role: Secure firmware repository - leverages OTP security registers and unique ID for secure boot chain validation. Use Value: Individual block locking isolates safety-critical boot code from updateable application partitions; 100K endurance supports over-the-air update cycles. |
| Medical Wearable Parameter Log | Smart Home Gateway OTA Storage |
|
Use Scenario: Recording patient vital sign history and device calibration logs in compact, battery-powered diagnostic wearables. IC Role / Device Role / Timing Role: Low-power data logger - uses <0.1µA deep power-down between measurements to extend battery life. Use Value: 1.8V operation matches Li-ion battery discharge curve; 4KB sectors allow timestamped log entries without erasing unrelated health records. |
Use Scenario: Hosting firmware images and configuration profiles for Wi-Fi/Zigbee gateways requiring field-upgradable software stacks. IC Role / Device Role / Timing Role: Dual-image storage - maintains active and candidate firmware images simultaneously for atomic OTA updates. Use Value: 66MB/s Quad I/O read speed enables sub-second firmware validation and decompression; SFDP register simplifies driver auto-configuration. |
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 |
|---|---|---|---|
| MX25L1633FZC-12G | 1.8V, 16Mb, supports DTR Quad SPI up to 80MHz; no /HOLD pin repurposing in Quad mode; lacks security registers | Lower max clock rate limits throughput; no hardware-based security register locking | Preferred when legacy SPI controller compatibility is prioritized over maximum bandwidth or secure key storage |
| S25FL132K0XMFI010 | 3V supply only (2.7–3.6V); 133MHz Quad SPI; includes HyperBus interface option; no WLCSP package | Requires voltage translation for 1.8V systems; larger SOIC-8 or BGA packages increase PCB area | Selected when existing 3V infrastructure exists and HyperBus migration path is planned |
Compared with W25Q16JWBYIM, MX25L1633FZC-12G offers simpler pin mapping but sacrifices security and speed; S25FL132K0XMFI010 delivers matching Quad performance but mandates 3V design and excludes the ultra-compact WLCSP footprint critical for wearables and miniaturized modules.
Availability
W25Q16JWBYIM is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot image retention, and medical wearable parameter logging requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for W25Q16JWBYIM 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 and RAM products for industrial, automotive, and consumer markets.
The W25Q16JWBYIM belongs to Winbond's W25Q "JW" series - designed specifically for high-reliability, low-voltage industrial-plus applications demanding extended temperature operation, robust security, and ultra-small packaging.
FAQ
What is the package type and dimensions of W25Q16JWBYIM?
W25Q16JWBYIM uses an 8-ball WLCSP (Wafer-Level Chip Scale Package) with 0.4 mm pitch and physical dimensions of 2.0 mm × 2.5 mm. This package is optimized for space-constrained applications such as wearables and compact IoT modules. The BY suffix in the part number explicitly denotes the WLCSP-8 variant, confirmed in Winbond's ordering information table on page 70 of the datasheet.
Does W25Q16JWBYIM support hardware reset via /RESET pin?
No, W25Q16JWBYIM does not include a dedicated /RESET pin. According to the datasheet (Section 4.6 and Note 1 on page 7), hardware /RESET is only available on SOIC-16 and TFBGA packages - not on WLCSP, SOIC-8, WSON, or XSON variants. Reset functionality for W25Q16JWBYIM must be implemented via the software sequence: Enable Reset (66h) followed by Reset Device (99h), which takes ~30 µs to complete.
How is Quad SPI mode enabled on W25Q16JWBYIM?
Quad SPI mode on W25Q16JWBYIM is enabled by setting the Quad Enable (QE) bit - a non-volatile bit located in Status Register-2. This requires issuing Write Status Register-2 (31h) with QE = 1. Once set, /WP and /HOLD pins become IO2 and IO3 respectively, enabling four-line data transfer. The QE bit persists across power cycles unless explicitly cleared, and its state can be verified using Read Status Register-2 (35h).
What is the significance of the WPS bit in W25Q16JWBYIM's Status Register-3?
The WPS (Write Protect Selection) bit in Status Register-3 determines the active write protection scheme for W25Q16JWBYIM. When WPS = 0 (factory default), protection is controlled by BP2–BP0, TB, SEC, and CMP bits. When WPS = 1, protection switches to individual block/sector lock bits - allowing per-sector granularity instead of region-based locking. This bit must be written using Write Status Register-3 (11h) and affects how /WP pin interaction and status register writes are interpreted.
Can W25Q16JWBYIM be used in systems requiring -40°C to +105°C operation?
Yes, W25Q16JWBYIM is explicitly qualified for Industrial Plus grade operation from –40°C to +105°C, as stated in the title block and Section 9.2 (Operating Ranges) of the datasheet. This rating applies to all package types including WLCSP-8 (BY), making it suitable for under-hood automotive modules, industrial motor drives, and outdoor edge computing devices where extended thermal stability is mandatory.
W25Q16JWBYIM Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 8-UFBGA, WLCSP
- Packaging:
- Tube
- 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-WLCSP (1.56x2.16)
W25Q16JWBYIM FAQ
1.How can I place an order for W25Q16JWBYIM through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q16JWBYIM 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 W25Q16JWBYIM reliable?
The price and inventory of W25Q16JWBYIM are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q16JWBYIM is usually 5 days.
3.What payment methods are accepted for W25Q16JWBYIM?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q16JWBYIM transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q16JWBYIM?
W25Q16JWBYIM orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q16JWBYIM 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 W25Q16JWBYIM?
For technical support, including W25Q16JWBYIM datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q16JWBYIM requirements.
6.How does Aetrix verify that W25Q16JWBYIM is sourced from the original manufacturer or authorized distributors?
All W25Q16JWBYIM 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 W25Q16JWBYIM meets industry standards.
7.What is the process for return or replacement of W25Q16JWBYIM?
All W25Q16JWBYIM units undergo pre-shipment inspection (PSI). If there is an issue with W25Q16JWBYIM, 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 W25Q16JWBYIM part is unused and in its original packaging.
Return procedure for W25Q16JWBYIM:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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