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Winbond Electronics Corporation W25Q128FWBIG
- Part No.:
- W25Q128FWBIG
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 24-TBGA
- Datasheet:
-
W25Q128FWBIG.pdf
- Description:
- IC FLASH 128MBIT SPI 24TFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,336
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Product details
Overview
W25Q128FWBIG from Winbond is a 1.8V, 128M-bit (16MB) serial NOR flash memory supporting Standard/Dual/Quad SPI and QPI interfaces, organized into 65,536 × 256-byte pages with uniform 4KB sector erase capability, used for code storage, XIP execution, and firmware parameter retention in space-constrained embedded systems.
For engineers reviewing the W25Q128FWBIG datasheet, W25Q128FWBIG pinout, W25Q128FWBIG application, or W25Q128FWBIG equivalent, key selection criteria include its 104MHz SPI clock rating, 50MB/s continuous read throughput, quad-enable (QE) bit dependency for IO2/IO3 functionality, and hardware write-protect (/WP) and hold (/HOLD) pins active only in non-QPI mode.
Technical Context
The W25Q128FWBIG implements a multi-mode serial interface: Standard SPI uses DI/DO unidirectionally; Dual/Quad SPI repurposes /WP and /HOLD as bidirectional IO2/IO3 when the non-volatile Quad Enable (QE) bit in Status Register-2 is set to 1. QPI mode enables 2-clock instruction cycles and reduces command overhead for true execute-in-place (XIP) operation.
Its architecture supports flexible protection schemes including volatile/non-volatile block protect (BP2–BP0), top/bottom array control (TB), complement protection (CMP), and three 256-byte security registers with OTP locks. Erase/program suspend/resume allows background operations without halting host communication.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 M-bit (16 MB), organized as 65,536 × 256-byte programmable pages |
| Supply Voltage | 1.65 V to 1.95 V - enables direct integration with 1.8V logic domains without level shifting |
| SPI Clock Frequency | Up to 104 MHz - delivers 208 MB/s (Dual I/O) or 416 MB/s (Quad I/O) effective throughput |
| Erase Granularity | Uniform 4 KB sectors (4,096 total), 32 KB blocks (2,048), 64 KB blocks (256), and full chip erase |
| Endurance & Retention | 100,000 program/erase cycles minimum; 20-year data retention at +85°C |
| Interface Modes | Standard SPI (4-wire), Dual SPI (5-wire), Quad SPI (6-wire), QPI (6-wire, 2-cycle instructions) |
| Security Features | 64-bit unique ID, JEDEC-compliant SFDP register, three 256-byte OTP-lockable security registers |
Pinout & Package
W25Q128FWBIG is available in multiple packages including 8-pin SOIC 208-mil (S), 8-pad WSON 6×5-mm (P), 8-pad WSON 8×6-mm (E), 16-pin SOIC 300-mil (F), 24-ball TFBGA 8×6-mm (B/C), and 32-ball WLCSP (Y). Pin functions are consistent across SOIC/WSON/TFBGA variants; WLCSP uses ball mapping aligned to same signal definitions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| /CS | Chip Select Input | Active-low enable: high = device deselected (high-Z outputs, standby current); low = active communication window |
| DI (IO0) | Data Input / Bidirectional I/O | Serial input for Standard/Dual/Quad SPI; becomes IO0 in multi-I/O modes when QE=1 |
| DO (IO1) | Data Output / Bidirectional I/O | Serial output for Standard SPI; becomes IO1 in multi-I/O modes when QE=1 |
| /WP (IO2) | Write Protect Input / Bidirectional I/O | Hardware write lock for status register when QE=0; repurposed as IO2 in Quad/QPI modes (QE=1) |
| /HOLD (IO3) | Hold Input / Bidirectional I/O | Pauses ongoing SPI transfer when asserted low; repurposed as IO3 in Quad/QPI modes (QE=1) |
| CLK | Serial Clock Input | Edge-triggered timing reference for all SPI/QPI operations; rising edge for input, falling edge for output |
| VCC | Power Supply | 1.65–1.95 V supply; powers internal charge pumps for erase/program operations |
| GND | Ground Reference | Return path for all I/O and core logic; must be low-impedance for stable timing and noise immunity |
Key Features
| Feature | Design Value |
|---|---|
| Continuous Read Mode | As few as 8 clocks to initiate address access - enables efficient XIP with minimal instruction overhead |
| Quad Peripheral Interface (QPI) | 2-clock instruction cycle reduces command latency vs. standard SPI - critical for real-time boot and firmware update |
| Erase/Program Suspend & Resume | Allows host to pause background erase/program to service higher-priority reads - improves system responsiveness |
| Flexible Hardware Protection | /WP pin + BP/TB/SEC/CMP bits enable selective locking of 4KB sectors up to full array - prevents accidental firmware corruption |
| Security Register Architecture | Three independent 256-byte OTP-lockable registers - suitable for storing cryptographic keys, calibration data, or device-specific secrets |
Applications
| Industrial HMI Boot Storage | Automotive ADAS Firmware Image |
|---|---|
|
Use Scenario: Storing boot loader and GUI assets in a panel-mounted PLC HMI unit operating at -40°C to +85°C. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP support for fast UI initialization and over-the-air firmware updates. Use Value: 4KB sector granularity enables atomic updates of individual GUI modules without erasing full firmware image. |
Use Scenario: Holding sensor fusion firmware and calibration tables in a radar ECU requiring AEC-Q100 compliance. IC Role / Device Role / Timing Role: Secure, high-reliability firmware repository with OTP-locked security registers for calibration checksums. Use Value: 100K-cycle endurance and 20-year retention ensure integrity across vehicle lifetime under thermal cycling stress. |
| Medical IoT Sensor Node | Networking Equipment Configuration |
|
Use Scenario: Storing patient monitoring algorithm binaries and runtime configuration in a battery-powered wearable. IC Role / Device Role / Timing Role: Low-power firmware and parameter storage with <1 µA power-down current and fast wake-up via /CS assertion. Use Value: 1.8V operation eliminates need for external voltage translation, reducing BOM count and PCB area. |
Use Scenario: Holding switch/router boot images and persistent MAC tables in carrier-grade Ethernet equipment. IC Role / Device Role / Timing Role: High-throughput configuration storage supporting 104MHz SPI for rapid reboots after failover events. Use Value: 50MB/s continuous read rate ensures sub-second boot time even with 12MB+ firmware images. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial NOR flash applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MX25L12833FZC-10G | Same density (128M-bit), 3V supply (2.7–3.6V), no QPI mode, slower max clock (86MHz), no security registers | Requires level-shifting for 1.8V systems; lacks QPI acceleration and secure key storage | Select only if legacy 3V design exists and QPI/XIP performance is not required. |
| S25FL128SAGMFI000 | 1.8V supply, 128M-bit, supports HyperBus interface (not SPI/QPI), 133MHz DDR clock, integrated ECC | HyperBus requires different controller IP and PCB layout; ECC adds reliability but increases complexity | Prefer when migrating to Cypress/Infineon ecosystem with HyperFlash-compatible SoCs and ECC-critical use cases. |
Compared with MX25L12833FZC-10G, W25Q128FWBIG offers 1.8V-native operation and QPI acceleration; versus S25FL128SAGMFI000, it retains SPI/QPI compatibility without HyperBus controller dependency, simplifying migration from legacy SPI-based designs.
Availability
W25Q128FWBIG is available at Aetrix Electronics and suitable for industrial HMI, automotive ADAS, medical IoT, networking equipment, and consumer electronics applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for W25Q128FWBIG 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 DRAM, serial flash, and mobile RAM solutions for embedded, industrial, and communications markets.
The W25Q series targets high-performance, low-voltage serial NOR flash applications demanding XIP capability, robust security, and flexible erase architecture - optimized for resource-constrained microcontroller-based systems.
FAQ
What is the maximum SPI clock frequency supported by W25Q128FWBIG?
W25Q128FWBIG supports up to 104 MHz for Standard/Dual/Quad SPI operations. In Quad I/O mode with Fast Read Quad I/O (EBh) instruction, this yields an effective data rate of 416 MB/s (104 MHz × 4). The QPI mode further reduces instruction overhead but maintains the same 104 MHz clock limit on the CLK pin.
Does W25Q128FWBIG support execute-in-place (XIP) operation?
Yes, W25Q128FWBIG supports true XIP via Continuous Read Mode and QPI interface. With as few as 8 clocks to initiate address access and support for wrap-around burst reads (8/16/32/64-byte), it enables deterministic code fetch directly from flash without copying to RAM - validated in MCU boot loaders and real-time OS kernels.
How does the /WP and /HOLD pin behavior change in Quad SPI mode?
In W25Q128FWBIG, when the Quad Enable (QE) bit in Status Register-2 is set to 1, the /WP pin becomes IO2 and /HOLD becomes IO3 - disabling their hardware protection and hold functions. These pins revert to /WP and /HOLD only when QE=0, making mode selection a trade-off between I/O bandwidth and hardware control features.
What package options are available for W25Q128FWBIG?
W25Q128FWBIG is offered in 8-pin SOIC 208-mil (S), 8-pad WSON 6×5-mm (P), 8-pad WSON 8×6-mm (E), 16-pin SOIC 300-mil (F), 24-ball TFBGA 8×6-mm (B/C), and 32-ball WLCSP (Y). The "BIG" suffix specifically denotes the 8-pad WSON 6×5-mm (P) package per Winbond's ordering matrix.
Can W25Q128FWBIG store cryptographic keys securely?
Yes, W25Q128FWBIG includes three dedicated 256-byte Security Registers with OTP (one-time-programmable) lock bits (LB3–LB1). Once locked, these registers prevent further writes while allowing unlimited reads - ideal for storing AES keys, device certificates, or calibration signatures that must remain immutable after provisioning.
W25Q128FWBIG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Winbond Electronics Corporation
- Series:
- SpiFlash®
- Package/Case:
- 24-TBGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Memory Type:
- Non-Volatile
- Memory Format:
- FLASH
- Technology:
- FLASH - NOR
- Memory Size:
- 128Mbit
- Memory Organization:
- 16M x 8
- Memory Interface:
- SPI - Quad I/O, QPI
- Clock Frequency:
- 104 MHz
- Write Cycle Time - Word, Page:
- 60µs, 5ms
- Access Time:
- -
- Voltage - Supply:
- 1.65V ~ 1.95V
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 24-TFBGA (6x8)
W25Q128FWBIG FAQ
1.How can I place an order for W25Q128FWBIG through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q128FWBIG 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 W25Q128FWBIG reliable?
The price and inventory of W25Q128FWBIG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q128FWBIG is usually 5 days.
3.What payment methods are accepted for W25Q128FWBIG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q128FWBIG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q128FWBIG?
W25Q128FWBIG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q128FWBIG 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 W25Q128FWBIG?
For technical support, including W25Q128FWBIG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q128FWBIG requirements.
6.How does Aetrix verify that W25Q128FWBIG is sourced from the original manufacturer or authorized distributors?
All W25Q128FWBIG 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 W25Q128FWBIG meets industry standards.
7.What is the process for return or replacement of W25Q128FWBIG?
All W25Q128FWBIG units undergo pre-shipment inspection (PSI). If there is an issue with W25Q128FWBIG, 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 W25Q128FWBIG part is unused and in its original packaging.
Return procedure for W25Q128FWBIG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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