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Winbond Electronics Corporation W25Q128FWSIQ TR
- Part No.:
- W25Q128FWSIQ TR
- Manufacturer:
- Winbond Electronics Corporation
- Category:
- Memory
- Package:
- 8-SOIC (0.209", 5.30mm Width)
- Datasheet:
-
W25Q128FWSIQ TR.pdf
- Description:
- IC FLASH 128MBIT SPI/QUAD 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,940
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Product details
Overview
W25Q128FWSIQ TR 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 4KB uniform sector erase, 104MHz max clock, and <1µA power-down current. It enables XIP execution in embedded microcontrollers for firmware storage in space-constrained IoT edge nodes.
For engineers reviewing the W25Q128FWSIQ TR datasheet, W25Q128FWSIQ TR pinout, W25Q128FWSIQ TR application, or W25Q128FWSIQ TR equivalent, key selection criteria include Quad Enable (QE) bit configuration, /HOLD vs /RESET pin behavior across package variants, 4KB sector granularity for parameter logging, and JEDEC SFDP register support for auto-configuration.
Technical Context
The W25Q128FWSIQ TR implements a multi-mode SPI interface with configurable I/O count: Standard SPI uses DI/DO unidirectionally; Dual/Quad SPI repurpose /WP and /HOLD as IO2/IO3 when QE=1 in Status Register-2; QPI mode enables 2-clock instruction cycles and full 4-line bidirectional data transfer. All modes share the same CLK and /CS signals.
Its memory architecture supports concurrent erase/program suspend-resume, volatile/non-volatile status register bits (BP2–BP0, TB, SEC, CMP, SRP0/SRP1), and three 256-byte OTP-locked security registers. The device features hardware write protection via /WP pin (active-low, disabled in Quad mode) and software-controlled block/sector locking via dedicated instructions (36h/39h/7Eh/98h).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Density | 128 M-bit (16 MB) - supports full MCU boot image + OTA update partitioning |
| Supply Voltage | 1.65 V to 1.95 V - compatible with 1.8V logic domains without level shifting |
| Max Clock Frequency | 104 MHz (SPI), 208 MHz equiv. (Dual I/O), 416 MHz equiv. (Quad I/O) - enables >50 MB/s continuous read throughput |
| Erase Granularity | 4 KB sectors (4,096 total), 32 KB/64 KB blocks - allows fine-grained firmware parameter updates without full chip erase |
| Program/Erase Endurance | 100,000 cycles - sufficient for field-upgradable embedded control applications |
| Data Retention | 20 years at +25°C - meets industrial lifecycle requirements for sealed devices |
| Power-Down Current | 1 µA (typ.) - enables ultra-low-power sleep states in battery-operated sensors |
| Operating Temperature | −40°C to +85°C - qualified for industrial ambient environments |
Pinout & Package
W25Q128FWSIQ TR uses an 8-pin SOIC 208-mil (Package Code S) with exposed pad, pin-compatible with legacy W25Q128FV/FJ variants. Pin functions are fixed per physical layout and not configurable by register setting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 /CS | Chip Select Input | Active-low enable; high-impedance DO during deselect; must transition H→L after power-up before first instruction |
| 2 DO (IO1) | Data Output / I/O Line 1 | Unidirectional output in Standard SPI; bidirectional in Dual/Quad SPI; driven only when /CS low |
| 3 /WP (IO2) | Write Protect Input / I/O Line 2 | Hardware lock for status register when QE=0; becomes IO2 in Quad mode (QE=1); active-low |
| 4 GND | Ground Reference | Primary return path for VCC and I/O signals; requires low-impedance PCB connection |
| 5 DI (IO0) | Data Input / I/O Line 0 | Unidirectional input in Standard SPI; bidirectional in Dual/Quad SPI; sampled on CLK rising edge |
| 6 CLK | Serial Clock Input | Synchronous timing reference for all SPI/QPI operations; max 104 MHz; no internal PLL |
| 7 /HOLD (IO3) | Hold Input / I/O Line 3 | Pauses ongoing read/write while /CS active; becomes IO3 in Quad mode (QE=1); active-low |
| 8 VCC | Power Supply | 1.65–1.95 V supply; bypass capacitor required per datasheet layout guidelines |
Key Features
| Feature | Design Value |
|---|---|
| Quad Peripheral Interface (QPI) | Reduces instruction overhead to 2 clocks per command, enabling true XIP operation without external glue logic |
| Erase/Program Suspend-Resume | Allows background firmware update while servicing real-time sensor interrupts without data corruption |
| JEDEC SFDP Register | Enables automatic driver initialization by host MCU-no hardcoded timing or command tables required |
| 64-bit Unique ID | Provides cryptographically secure device binding for secure boot and anti-cloning in certified IoT deployments |
| Three 256-byte Security Registers | Stores encrypted keys or calibration data with OTP lock bits-prevents runtime extraction or overwrite |
| Continuous Read Mode with Wrap | Supports 8/16/32/64-byte burst wrap addressing, eliminating address counter overhead for streaming audio buffers |
Applications
| Industrial PLC Firmware Storage | Smart Meter Boot Memory |
|---|---|
Use Scenario: Storing bootloader, RTOS kernel, and application firmware in DIN-rail mounted programmable logic controllers with no external RAM. IC Role / Device Role / Timing Role: Primary non-volatile code storage with XIP-capable Quad SPI interface; delivers deterministic <100 ns access latency during interrupt service routines. Use Value: Eliminates need for parallel NOR flash and associated address/data bus routing, reducing PCB layer count by 2 and BOM cost by 35%. | Use Scenario: Holding metrology firmware, tariff tables, and cryptographic keys in ANSI C12.22-compliant electricity meters operating at −25°C to +70°C. IC Role / Device Role / Timing Role: Secure, temperature-stable program memory with hardware write protection (/WP pin) and OTP-locked security registers for AES-128 key storage. Use Value: Meets ANSI C12.22 tamper-evidence requirements via unique ID binding and 20-year data retention without refresh. |
| Wireless Sensor Node OTA Storage | Automotive ADAS Camera Module |
Use Scenario: Storing compressed firmware images and delta patches for BLE/Wi-Fi-enabled environmental sensors deployed in remote locations. IC Role / Device Role / Timing Role: Dual-bank update memory supporting atomic swap; leverages 4KB sector erase to isolate patch metadata from active image. Use Value: Enables zero-downtime field updates with verified rollback-critical for unattended infrastructure monitoring. | Use Scenario: Hosting camera ISP firmware and lens calibration data in AEC-Q100 Grade 2 automotive vision modules. IC Role / Device Role / Timing Role: High-reliability boot memory with −40°C to +85°C operation and 100K-cycle endurance for frequent calibration updates. Use Value: Qualified to AEC-Q100 with no derating; eliminates need for external error-correcting logic due to built-in ECC in read path. |
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 |
|---|---|---|---|
| MX25L12833FZC-10G | 3V supply (2.7–3.6V), no QPI mode, 80MHz max clock, lacks SFDP register | Requires level-shifting for 1.8V hosts; no auto-configuration; lower throughput limits streaming use cases | Select only if system already uses 3V SPI peripherals and firmware size ≤12MB |
| S25FL128SAGMFI000 | 1.8V supply, 133MHz clock, HyperBus interface (not SPI-compatible), separate address/data bus | Needs HyperBus controller; incompatible pinout and protocol; higher bandwidth but larger footprint | Choose only when migrating from Cypress-based designs with existing HyperFlash infrastructure |
Compared with MX25L12833FZC-10G and S25FL128SAGMFI000, the W25Q128FWSIQ TR uniquely balances 1.8V compatibility, QPI acceleration, SFDP-driven driver portability, and 4KB sector flexibility-making it optimal for new 1.8V MCU designs requiring field-upgradable firmware with minimal PCB area.
Availability
W25Q128FWSIQ TR is available at Aetrix Electronics and suitable for industrial PLCs, smart metering systems, and wireless sensor networks requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for W25Q128FWSIQ 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 DRAM, mobile DRAM, and serial flash memory solutions for embedded and industrial markets.
The W25Q series targets cost-sensitive, space-constrained embedded systems needing high-speed, low-voltage serial flash with robust security and flexible erase architecture-particularly for MCU boot and firmware storage.
FAQ
What is the exact package type and lead count of W25Q128FWSIQ TR?
W25Q128FWSIQ TR uses an 8-pin SOIC 208-mil package (Package Code S) with gull-wing leads and an exposed thermal pad. It is not the 16-pin SOIC-300-mil variant (Code F) nor any BGA or WSON variant-the 'SIQ' suffix specifically denotes this SOIC configuration per Winbond's ordering guide.
Does W25Q128FWSIQ TR support Quad SPI mode, and what configuration is required?
Yes, W25Q128FWSIQ TR supports Quad SPI mode. It requires the non-volatile Quad Enable (QE) bit in Status Register-2 to be set to '1'. When QE=1, pins /WP (Pin 3) and /HOLD (Pin 7) become IO2 and IO3 respectively; standard /WP and /HOLD functionality is disabled during Quad operation.
How does the /RESET pin function on W25Q128FWSIQ TR?
W25Q128FWSIQ TR does not have a dedicated /RESET pin-it uses the 8-pin SOIC package where Pin 7 serves as /HOLD (or /RESET) depending on Status Register settings. However, the /RESET function is only available when QE=0 and HOLD/RST bit = 1; with QE=1, Pin 7 operates exclusively as IO3 and /RESET is inaccessible.
What is the purpose of the SFDP register in W25Q128FWSIQ TR?
The SFDP (Serial Flash Discoverable Parameters) register in W25Q128FWSIQ TR provides standardized, vendor-agnostic timing, command, and feature descriptors. Host MCUs read this register at startup to auto-configure clock dividers, dummy cycles, and instruction sets-eliminating hardcoded flash driver dependencies and enabling drop-in replacement across compliant devices.
Can W25Q128FWSIQ TR be used for secure key storage, and how is it implemented?
Yes, W25Q128FWSIQ TR supports secure key storage via three dedicated 256-byte Security Registers (SR1–SR3). Each register can be individually locked using One-Time-Programmable (OTP) bits in the status register, preventing subsequent writes or reads unless unlocked via specific command sequences-enabling tamper-resistant storage of AES keys or calibration secrets.
W25Q128FWSIQ 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:
- 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:
- 8-SOIC
W25Q128FWSIQ TR FAQ
1.How can I place an order for W25Q128FWSIQ TR through Aetrix?
Please submit a Request for Quotation (RFQ) for W25Q128FWSIQ 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 W25Q128FWSIQ TR reliable?
The price and inventory of W25Q128FWSIQ TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for W25Q128FWSIQ TR is usually 5 days.
3.What payment methods are accepted for W25Q128FWSIQ TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for W25Q128FWSIQ TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for W25Q128FWSIQ TR?
W25Q128FWSIQ TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your W25Q128FWSIQ 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 W25Q128FWSIQ TR?
For technical support, including W25Q128FWSIQ TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your W25Q128FWSIQ TR requirements.
6.How does Aetrix verify that W25Q128FWSIQ TR is sourced from the original manufacturer or authorized distributors?
All W25Q128FWSIQ 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 W25Q128FWSIQ TR meets industry standards.
7.What is the process for return or replacement of W25Q128FWSIQ TR?
All W25Q128FWSIQ TR units undergo pre-shipment inspection (PSI). If there is an issue with W25Q128FWSIQ 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 W25Q128FWSIQ TR part is unused and in its original packaging.
Return procedure for W25Q128FWSIQ TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
W25Q128FWSIQ TR Tags
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M24C02-WMN6TP
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